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
A P P l I C AT I O N S
• High Surge Energy
• Non-Inductive
• Small Size
• Motor Drives
• Power Supplies, UPS
• Power Conversion
• In-Rush Current Limiting
S E R I E S S P E C I F I C AT I O N S
1
E12
Series
AV
AW
AX
AY
AZ
Standard Values ±10%;
2
Free Air 40°C Ambient;
3
In Air;
4
Single Impulse
(ohms)
3.3 to 10K
4.7 to 15K
1.0 to 3.3K
2.2 to 6.8K
1.5 to 4.7K
Resistance
1
P
avg.
2
(watts)
2.0
2.5
3.5
4.5
5.5
Impulse
Voltage
3
(volts)
1000
1500
1000
2000
2500
Energy
4
(joule)
250
400
700
1400
2800
ChARACTERITICS
Resistance Element
Bulk Ceramic
Terminals
Radial; 100% Sn solder coated radial (60/40 sol-
der available upon request)
Tolerance
±10% Standard
Operating Temp.
-55°C to 150°C
Range
Derating
Derates linearly from 100% @ 50°C to 0% @
150°C
Temperature Rise
100°C @ 100% rated power, 50°C ambient
Coating
UL94V0, solvent resistant epoxy
Parameter Max.
∆R
Life Test
+5%
Single Pulse
±1.5%
Energy
Test Method
MIL-STD-202F, method 108A.
except 50°C, 1000 hrs. @ rated
power; 1.5 hrs. ON, 0.5 hrs. OFF
Single pulse, capacitor discharge
at Rated Energy; 350VDC for AW
and AX sizes; 650VDC for AY and
AZ sizes.
Repetitive HV
±2.0%
Pulsing
Short-time
±1.5%
Overload
Short-term High
±1.5%
Temp
Long-term High
±2.0%
Temp
Thermal Shock
±2.0%
Cycle
Moisture
±1.0%
Resistance
10 joules @ 5.OKV, 10,000 cycles
10x rated power. 5 sec. ON, 5
sec. OFF, 5 cycles
250°C for 30 seconds
1000 hours @ 150°C
MIL-STD-202F, method 107D.
-55°C to +125°C, 5 cycles
Mounting clip
D
H
L
Dim. (mm)
Part No. D H L for Series Color
5911E
20 23 13 AX and AY White
5910E
25 26 15 AZ
Black
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.
90% to 95% rh @ 40°C, 1000 hrs.
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
51
DSP and ARM Processors
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