A Series
PulsEater® Ceramic Composition
Available in E12 Ohmic values
The “A” Series non-inductive, ceramic composite
resistors are designed for a variety of applications
where high energy handling capabilities are crucial.
These resistors are ideal for any application which
is subject to surges, high peak power, or impulse
energy.
Their unique design allows uniform distribution
of energy throughout their structure which results
in low thermal stress. The high-temperature,
solvent-resistant epoxy coating carries a UL94V0
flammability rating which is suitable for almost any
environment.
*AZ style is provided with
dual terminal wires
F E AT u R E S
• High Surge Energy
• Non-Inductive
A P P l I C AT I O N S
• Motor Drives
• Power Supplies, UPS
• Power Conversion
• Small Size
• In-Rush Current Limiting
SERIES SPECIFICATIONS
P
avg.2
(watts)
2.0
2.5
3.5
Impulse
Voltage3
(volts)
1000
1500
1000
Resistance1
(ohms)
3.3 to 10K
4.7 to 15K
1.0 to 3.3K
2.2 to 6.8K
1.5 to 4.7K
Energy4
(joule)
250
400
700
1400
2800
Series
AV
AW
AX
AY
AZ
4.5
5.5
2000
2500
1E12 Standard Values ±10%; 2Free Air 40°C Ambient; 3In Air; 4Single Impulse
ChARACTERITICS
Bulk Ceramic
Resistance Element
Terminals
Parameter Max. ∆R Test Method
Radial; 100% Sn solder coated radial (60/40 sol-
der available upon request)
+5%
MIL-STD-202F, method 108A.
except 50°C, 1000 hrs. @ rated
power; 1.5 hrs. ON, 0.5 hrs. OFF
Life Test
UL94V0, solvent resistant epoxy
±10% Standard
Coating
±1.5%
Single pulse, capacitor discharge
at Rated Energy; 350VDC for AW
and AX sizes; 650VDC for AY and
AZ sizes.
Single Pulse
Energy
Tolerance
-55°C to 150°C
Operating Temp.
Range
Derates linearly from 100% @ 50°C to 0% @
150°C
Derating
±2.0%
±1.5%
±1.5%
±2.0%
±2.0%
±1.0%
10 joules @ 5.OKV, 10,000 cycles
Repetitive HV
Pulsing
100°C @ 100% rated power, 50°C ambient
Temperature Rise
10x rated power. 5 sec. ON, 5
sec. OFF, 5 cycles
Short-time
Overload
250°C for 30 seconds
Short-term High
Temp
Mounting clip
This saddle clip conforms to
the configuration of Ohmite’s
A Series resistor to provide
D
1000 hours @ 150°C
Long-term High
Temp
MIL-STD-202F, method 107D.
-55°C to +125°C, 5 cycles
Thermal Shock
Cycle
H
secure mounting. Made
of a durable thermoplastic
polyester, the saddle clip is
designed to secure the A
Series in place while safely
withstanding its operat-
ing temperatures. Use (2)
saddle clips per resistor for
extra stability.
90% to 95% rh @ 40°C, 1000 hrs.
Moisture
L
Resistance
Dim. (mm)
Part No.
5911E
D
H
L
for Series Color
20 23 13 AX and AY White
25 26 15 AZ Black
5910E
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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