Copyright © Harris Corporation 1995
4-98
SEMICONDUCTOR
ZA Series
Radial Lead Metal-Oxide Varistors for
Low-to-Medium Voltage Operation
June 1995
Features
• Recognized as “Transient Voltage Surge Suppressors”, UL File
#E135010 to Std. 497B
• Wide Operating Voltage Range VM(AC)RMS . . . . . . . . . . . . . 4V to 460V
• DC Voltage Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5V to 615V
• 5 Model Sizes Available . . . . . . . . . . . . . . . . . . 5, 7, 10, 14, and 20mm
• Radial-Lead Package for Compact Hard-Wired Printed Circuit Board
Designs
• Available in Tape and Reel for Use With Automatic Insertion
Equipment
5, 7, 10, 14, 20mm
ZA SERIES
Description
The ZA series of transient voltage surge suppressors are
radial-lead varistors designed for use in the protection of low
and medium-voltage circuits and systems. Typical applica-
tions include motor control, telecom, automotive systems,
solenoid, and power supply circuits to protect circuit board
components and maintain data integrity.
These devices are available in five model sizes: 5mm, 7mm,
10mm, 14mm and 20mm, and feature a wide VDC voltage
range of 5.5V to 615V.
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart
ZA SERIES UNITS
Continuous:
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Voltage Range (VM(DC)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 460
5.5 to 615 V
V
Transient:
Peak Pulse Current (ITM)
For 8/20µs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single Pulse Energy Range (Note 1)
For 10/1000µs Current Wave (WTM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50 to 6500
0.1 to 52
A
J
Operating Ambient Temperature Range (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +85 oC
Storage Temperature Range (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125 oC
Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current. . . . . . . . . . . . . . <0.01 %/oC
Hi-Pot Encapsulation (Isolation Voltage Capability). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500 V
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301) .
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 MΩ
File Number 2184.3