ST1PS02

Active
Education Education

400 mA nano-quiescent synchronous step-down converter with digital voltage selection, Power Good and AUX switch

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CAD Resources
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Quality & Reliability
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Product overview

Description

The ST1PS02 is a nano-quiescent miniaturized synchronous step-down converter, which is able to provide up to 400 mA output current with an input voltage ranging from 1.8 V to 5.5 V. This converter is specifically designed for applications where high efficiency, PCB size and thickness are the key factors. The output voltage can be set using three digital control inputs, a VOUT from 1.0 V to 3.3 V can be dynamically selected. Thanks to the enhanced PCC (peak current control) the ST1PS02 reaches very high efficiency conversion using just a 2.2 µH inductor and two small capacitors. The device embeds a controlled load switch to supply a subsystem with same voltage rail. Advanced design circuitry is implemented to minimize the quiescent current. The device is available in thin plastic package.
  • All features

    • 500 nA input quiescent current at VIN = 3.6 V (not switching)
    • 92% typical efficiency at 10 mA load (VIN = 3.6 V, VOUT = 2.5 V)
    • 100% duty cycle
    • 1.8 V to 5.5 V input operating range
    • Undervoltage lockout: 1.57 V (VIN falling, typ.)
    • Up to 400 mA output current capability
    • Low power control operation for the best efficiency
    • Embedded soft-start circuit
    • Tiny external components: L = 2.2 µH typ.
    • Settable inductor current limitation
    • Selectable output voltages: 1.0 V to 3.3 V
    • Output voltage Power Good
    • ±1.5% output voltage accuracy (VOUT, TA = 25 °C)
    • Dynamic output voltage selection (D0, D1 and D2)
    • Auxiliary load switch Vout2 (AUX control input)
    • Available in TQFN12 package

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All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-1PS02A

      Active

      Evaluation board based on ST1PS02AQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

      PSU and Converter Solution Eval Boards ST
      STEVAL-1PS02A

      Description:

      Evaluation board based on ST1PS02AQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

      STEVAL-1PS02B

      Active

      Evaluation board based on ST1PS02BQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

      PSU and Converter Solution Eval Boards ST
      STEVAL-1PS02B

      Description:

      Evaluation board based on ST1PS02BQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

      STEVAL-1PS02C

      Active

      Evaluation board based on ST1PS02CQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

      PSU and Converter Solution Eval Boards ST
      STEVAL-1PS02C

      Description:

      Evaluation board based on ST1PS02CQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

      STEVAL-1PS02D

      Active

      Evaluation board based on ST1PS02DQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

      PSU and Converter Solution Eval Boards ST
      STEVAL-1PS02D

      Description:

      Evaluation board based on ST1PS02DQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch

EDA Symbols, Footprints and 3D Models

STMicroelectronics - ST1PS02

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST1PS02A1QTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2
ST1PS02AQTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2
ST1PS02B1QTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2
ST1PS02BQTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2
ST1PS02C1QTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2
ST1PS02CQTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2
ST1PS02D1QTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2
ST1PS02DQTR
Active
MLPQ/QFN 1.7x2.0x0.55 12L P0.4 Industrial Ecopack2

ST1PS02A1QTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS02AQTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS02B1QTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS02BQTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS02C1QTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS02CQTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS02D1QTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS02DQTR

Package:

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Material Declaration**:

Marketing Status

Active

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
ST1PS02B1QTR Available at 2 distributors

Distributor availability ofST1PS02B1QTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
Farnell Element14 EUROPE 500 1 Buy from Distributor

Distributor reported inventory date: 2021-12-04

Distributor Name

RS COMPONENTS

Stock

2000

Min.Order

1

Farnell Element14

Stock

500

Min.Order

1

Distributor reported inventory date: 2021-12-04

Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k
ST1PS02C1QTR Available at 4 distributors

Distributor availability ofST1PS02C1QTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1395 1 Buy from Distributor
Farnell Element14 EUROPE 588 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1395

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

588

Min.Order

1

Distributor reported inventory date: 2021-12-05

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k
ST1PS02DQTR Available at 4 distributors

Distributor availability ofST1PS02DQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1970 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1999 1 Buy from Distributor
Farnell Element14 EUROPE 592 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

1970

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1999

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

592

Min.Order

1

Distributor reported inventory date: 2021-12-05

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k
ST1PS02D1QTR Available at 4 distributors

Distributor availability ofST1PS02D1QTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 912 1 Buy from Distributor
RS COMPONENTS EUROPE 1000 1 Buy from Distributor
MOUSER WORLDWIDE 441 1 Buy from Distributor
Farnell Element14 EUROPE 288 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

912

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1000

Min.Order

1

MOUSER

Stock

441

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

288

Min.Order

1

Distributor reported inventory date: 2021-12-05

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k
ST1PS02AQTR Available at 4 distributors

Distributor availability ofST1PS02AQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1999 1 Buy from Distributor
Farnell Element14 EUROPE 600 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1999

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

600

Min.Order

1

Distributor reported inventory date: 2021-12-05

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k
ST1PS02BQTR Available at 2 distributors

Distributor availability ofST1PS02BQTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 745 1 Buy from Distributor
MOUSER WORLDWIDE 95 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

RS COMPONENTS

Stock

745

Min.Order

1

MOUSER

Stock

95

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-12-05

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k
ST1PS02A1QTR Available at 4 distributors

Distributor availability ofST1PS02A1QTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1998 1 Buy from Distributor
Farnell Element14 EUROPE 600 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1998

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

600

Min.Order

1

Distributor reported inventory date: 2021-12-05

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k
ST1PS02CQTR Available at 4 distributors

Distributor availability ofST1PS02CQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 985 1 Buy from Distributor
RS COMPONENTS EUROPE 1815 1 Buy from Distributor
MOUSER WORLDWIDE 373 1 Buy from Distributor
Farnell Element14 EUROPE 450 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

985

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1815

Min.Order

1

MOUSER

Stock

373

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

450

Min.Order

1

Distributor reported inventory date: 2021-12-05

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel MLPQ/QFN 1.7x2.0x0.55 12L P0.4 - - CHINA 0.4961 / 1k

ST1PS02B1QTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02B1QTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
Farnell Element14 EUROPE 500 1 Buy from Distributor

Distributor reported inventory date: 2021-12-04

Distributor Name

RS COMPONENTS

Stock

2000

Min.Order

1

Farnell Element14

Stock

500

Min.Order

1

Distributor reported inventory date: 2021-12-04

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

ST1PS02C1QTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02C1QTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1395 1 Buy from Distributor
Farnell Element14 EUROPE 588 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1395

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

588

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

ST1PS02DQTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02DQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1970 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1999 1 Buy from Distributor
Farnell Element14 EUROPE 592 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

1970

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1999

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

592

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

ST1PS02D1QTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02D1QTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 912 1 Buy from Distributor
RS COMPONENTS EUROPE 1000 1 Buy from Distributor
MOUSER WORLDWIDE 441 1 Buy from Distributor
Farnell Element14 EUROPE 288 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

912

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1000

Min.Order

1

MOUSER

Stock

441

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

288

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

ST1PS02AQTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02AQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1999 1 Buy from Distributor
Farnell Element14 EUROPE 600 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1999

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

600

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

ST1PS02BQTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02BQTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 745 1 Buy from Distributor
MOUSER WORLDWIDE 95 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

RS COMPONENTS

Stock

745

Min.Order

1

MOUSER

Stock

95

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

ST1PS02A1QTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02A1QTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Buy from Distributor
RS COMPONENTS EUROPE 2000 1 Buy from Distributor
MOUSER WORLDWIDE 1998 1 Buy from Distributor
Farnell Element14 EUROPE 600 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2000

Min.Order

1

MOUSER

Stock

1998

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

600

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

ST1PS02CQTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4961 / 1k

Distributor availability ofST1PS02CQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 985 1 Buy from Distributor
RS COMPONENTS EUROPE 1815 1 Buy from Distributor
MOUSER WORLDWIDE 373 1 Buy from Distributor
Farnell Element14 EUROPE 450 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

985

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1815

Min.Order

1

MOUSER

Stock

373

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

450

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MLPQ/QFN 1.7x2.0x0.55 12L P0.4

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4961 / 1k

Country of Origin

CHINA

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors