Littelfuse HG34 Varistor Series - Manual

© 2013 Littelfuse, Inc. 167
Revised: May 8, 2013
Varistor Products
HB34, HF34 and HG34 Varistor Series
Industrial High Energy Terninal Varistors > HB34, HF34 & HG34 Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/hb34.html or /hf34 or /hg34.thml
for current information.
HI–ENERGY
MO
V’S
HBx/HFx/HGx Series
HB34, HF34 and HG34 Varistor Series
Description
The HB34, HF34, and HG34 Series of transient surge
suppressors are industrial high-energy Metal-Oxide
Varistors (MOVs). They are designed to provide surge
suppression in the AC mains outdoor and service entrance
environment (distribution panels) of buildings. Applications
also include industrial heavy motors, controls, and power
supplies such as used in the oil-drilling, mining, and
transportation fields, including HVAC and motor/generator
applications.
The HB34 Series provides rigid terminals for through-
hole solder mounting on printed circuit boards, thereby
eliminating the need for screw mounting. The HF34
Series has the same rigid through-hole terminals as the
HB34 with the addition of mounting holes for bolt-down
mounting and longer terminals to allow for additional
mounting flexibility. The HG34 has formed feet with
mounting holes for vertical bolt-down mounting.
See Ratings and Specifications table for part numbers.
Features
• Lead-Free, Halogen-
Free and RoHS
Compliant available
• Wide operating
voltage range
V
M(AC)RMS
110V to 750V
• High energy absorption
capability
W
TM
= 220J to 1050J
• High peak pulse
current capability
I
TM
= 40,000A
• Rigid terminals for
secure through-hole
solder mounting
• No derating up to
85ºC ambient
Agency Approvals
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Agency Agency File Number
E320116
LR91788
Continuous Hx34 Series Units
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
) 110 to 750 V
DC Voltage Range (V
M(DC)
) 148 to 970 V
Transients:
Peak Pulse Current (I
TM
)
For 8/20μs Current Wave (See Figure 2) 40000 A
Single Pulse Energy Range
For 2ms Current Wave (W
TM
) 220 to 1050 J
Operating Ambient Temperature Range (T
A
) -55 to +85 ºC
Storage Temperature Range (T
STG
) -55 to +125 ºC
Temperature Coefficient (a V ) of Clamping Voltage (V
C
) at Specified Test Current <0.01 %/ºC
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
2500 V
COATING Insulation Resistance 1000 MΩ
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This
is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied.
RoHS