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SERIES SPECIFICATIONS
A Series
PulsEater® Ceramic Composition
Available in E12 Ohmic values
P Impulse
Resistance
1
avg.
2
Voltage
3
Energy
4
Series (ohms) (watts) (volts) (joule)
AV 3.3 to 10K 2.0 1000 250
AW 4.7 to 15K 2.5 1500 400
AX 1.0 to 3.3K 3.5 1000 700
AY 2.2 to 6.8K 4.5 2000 1400
AZ 1.5 to 4.7K 5.5 2500 2800
1
E12 Standard Values ±10%;
2
Free Air 40°C Ambient;
3
In Air;
4
Single Impulse
Parameter Max. ∆R Test Method
Life Test
+5% MIL-STD-202F, method 108A.
except 50°C, 1000 hrs. @ rated
power; 1.5 hrs. ON, 0.5 hrs. OFF
Single Pulse
Energy
±1.5% Single pulse, capacitor discharge
at Rated Energy; 350VDC for AW
and AX sizes; 650VDC for AY and
AZ sizes.
Repetitive HV
Pulsing
±2.0% 10 joules @ 5.OKV, 10,000 cycles
Short-time
Overload
±1.5% 10x rated power. 5 sec. ON, 5
sec. OFF, 5 cycles
Short-term High
Temp
±1.5% 250°C for 30 seconds
Long-term High
Temp
±2.0% 1000 hours @ 150°C
Thermal Shock
Cycle
±2.0% MIL-STD-202F, method 107D.
-55°C to +125°C, 5 cycles
Moisture
Resistance
±1.0% 90% to 95% rh @ 40°C, 1000 hrs.
Resistance Element
Bulk Ceramic
Terminals
Radial; 100% Sn solder coated radial (60/40 sol-
der available upon request)
Coating
UL94V0, solvent resistant epoxy
Tolerance
±10% Standard
Operating Temp.
Range
-55°C to 150°C
Derating
Derates linearly from 100% @ 50°C to 0% @
150°C
Temperature Rise
100°C @ 100% rated power, 50°C ambient
Mounting clip
This saddle clip conforms to
the configuration of Ohmite’s
A Series resistor to provide
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.
Dim. (mm)
Part No. D H L for Series Color
5911E 20 23 13 AX and AY White
5910E 25 26 15 AZ Black
*AZ style is provided with
dual terminal wires
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.
APPlICATIONS
• Motor Drives
• Power Supplies, UPS
• Power Conversion
• In-Rush Current Limiting
FEATuRES
• High Surge Energy
• Non-Inductive
• Small Size
ChARACTERITICS
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