USHA Z3 Datasheet

Voltage Regulator Diode

R

;

Zener 27 V / 10 W

Technical Data

Typical applications : Designed to provide a near constant voltage when
operated in the reverse breakdown mode but when operated with a forward bias
it behaves similarly to any forward biased rectifier junction.

Features :

• P

• Hermatic metal glass seal .

• Anode to case

• Tvj max = 175 °C

10 W [Tcase = 75 °C ]

tot

Symbo

Conditions Specification

l

V

ZT

Zener Voltage @ Zener Test Current
I ZT ; Tolerance = ±5 %

I
Z

Z

ZT

ZT

ZK

Zener Test Current 95 mA
Zener Impedence @ Zener Test

Current I

ZT

Zener Impedence in the breakdown
knee region @ Zener Test Current in
the breakdown knee region I

I

ZK

Zener Test Current in the breakdown

ZK

knee region

∝ VZ Temperature Coefficient of working

voltage

I

R

Continuous Reverse Current @
Continuous Reverse Voltage V
Tamb = 25 °C

V
I

R

ZM

Continuous Reverse Voltage 21 Volts
Peak Regulation Current 350 mA

Case
Outline

27 Volts nominal

7 Ω max
250 Ω max

1.0 mA

8.5 x 10

-4

/ °C
typ
10 µA max

DO4