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UDZSTE-173.9B Zener diode rated at 3.9V with 200mW power dissipation and ±3% tolerance in a surface mount UMD2 package.
Mfr Part #:

UDZSTE-173.9B

Available from 3 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
Zener diode rated at 3.9V with 200mW power dissipation and ±3% tolerance in a surface mount UMD2 package.
Total Stock: 4,186 pcs

UDZSTE-173.9B Available from 3 distributors

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2,485 pcs
2485 pcs On Request 1 On Request On Request On Request On Request On Request
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1,691 pcs
1691 pcs On Request 1 On Request On Request 04+ On Request On Request
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10 pcs
10 pcs On Request 1 On Request On Request On Request On Request On Request

UDZSTE-173.9B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Power
Supplier Device Package
Tolerance
Voltage

UDZSTE-173.9B Description

Short technical summary and product information.

The UDZSTE-173.9B is a 3.9V Zener diode from ROHM Semiconductor designed for voltage regulation and protection applications. It features a nominal Zener voltage of 3.9V with a tolerance of ±3% and a maximum power dissipation of 200mW. The device offers a maximum Zener impedance of 100Ω at the Zzt test condition and a reverse leakage current of 5µA at 1V.

 

This Zener diode is housed in a surface mount SC-90 / SOD-323F package with a UMD2 supplier device package designation. It supports an operating temperature range of -55°C to 150°C, making it suitable for a wide variety of environments. The compact package enables use in space-constrained designs.

 

Typical applications include voltage clamping, overvoltage protection, and reference voltage generation in low-power circuits. The part is RoHS3 compliant and has an MSL rating of 1 (unlimited).

UDZSTE-173.9B Quick Information

Product Type: Zener Diode
Canonical Name: UDZSTE-173.9B Zener Diode 3.9V 200mW
Subcategory: Single Zener Diode

UDZSTE-173.9B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

UDZSTE-173.9B Features

  • 3.9V nominal Zener voltage with ±3% tolerance.
  • 200mW maximum power dissipation rating.
  • Surface mount UMD2 package for compact designs.
  • Operating temperature range -55°C to 150°C.
  • RoHS3 compliant and MSL 1 (unlimited).

UDZSTE-173.9B Applications

  • Used for voltage regulation in low-power circuits.
  • Ideal for overvoltage protection applications.
  • Suitable for reference voltage generation.
  • Common in portable and battery-powered devices.

UDZSTE-173.9B FAQs

6 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the UDZSTE-173.9B?

The nominal Zener voltage is 3.9V with a tolerance of ±3%.

What is the power dissipation rating?

The maximum power dissipation is 200mW.

What package does this Zener diode come in?

It is available in a surface mount SC-90 / SOD-323F package with a UMD2 supplier device package.

What is the operating temperature range?

The operating temperature range is -55°C to 150°C.

What is the maximum Zener impedance?

The maximum Zener impedance is 100Ω at the Zzt test condition.

What is the reverse leakage current?

The reverse leakage current is 5µA at 1V.

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