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 flammabil-
ity rating which is suitable for
almost any environment.
A P P L I C A T I O N S
• Motor Drives
• Power Supplies, UPS
• Power Conversion
• In-Rush Current Limiting
A Series
PulsEater® Ceramic Composition
Available in E12 Ohmic values
S P E C I F I C A T I O N S
Material
Resistance Element: Bulk
Ceramic
Terminals: Radial; 100% Sn sol-
der coated radial (60/40 solder
available upon request)
Coating: UL94V0, solvent resis-
tant epoxy
AW, AX, AY
AZ
L
L
D
D
H
Electrical
16.7mm
7.6mm
4.7mm
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
F E A T U R E S
• High Surge Energy
• Non-Inductive
• Small Size
S
S
Offset crimp width is
2x terminal wire gauge
AZ series also available
with crimps upon request
O R D E R I N G I N F O R M AT I O N
P
L
D
H
S
Impulse
Term. wire
Resistance1 avg.2 max. max. max. norm. Voltage3 Energy4 gauge
(ohms) (watts) (mm) (mm) (mm) (mm) (volts) (joule) (AWG)
E = RoHS compliant
Series
AW xxx 4.7 to 15K 2.5
AX xxx 1.0 to 3.3K 3.5
AY xxx 2.2 to 6.8K 4.5
AZ xxx 1.5 to 4.7K 5.5
20
15
25
30
13
21
21
26
19 17.5 1500
26 12.5 1000
26 22.5 2000
400
700
1400
2800
20
18
18
18
� ꢀ ꢁ ꢂ ꢃ ꢄ ꢅ
Tolerance
K= 10% Standard
Size
Ohm Value
AW= 2.5W Example:
27
2500
AX = 3.5W 33G = 3.3 Ohms
AY = 4.5W 330 = 33 Ohms
AZ = 5.5W 331 = 330 Ohms
1E12 Standard Values ±10%; 2Free Air 40°C Ambient; 3In Air; 4Single Impulse
M O U N T I N G C L I P
S TA N D A R D S P E C I F I C AT I O N S
Parameter
Life Test
Max. ΔR Test Method
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 operating
temperatures. Use (2) saddle
clips per resistor for extra
stability.
D
+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.
H
Repetitive HV Pulsing ±2.0% 10 joules @ 5.OKV, 10,000 cycles
Short-time Overload
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
±1.5% 10x rated power. 5 seconds ON, 5 seconds OFF, 5 cycles
L
Dim. (mm)
Part No.
5911E
5910E
D
H
L
for Series Color
20 23 13 AX and AY White
25 26 15 AZ Black
Moisture Resistance
±1.0% 90% to 95% rh @ 40°C, 1000 hrs.
S TA N D A R D V A L U E S F O R A S E R I E S
Series
Series
Series
Series
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
1.0–––10GK
1.2–––12GK
1.5–––15GK
1.8–––18GK
2.2–––22GK
2.7–––27GK
3.3–––33GK
3.9–––39GK
4.7–––47GK
5.6–––56GK
6.8–––68GK
8.2–––82GK
10 –––100K
12 –––120K
15 –––150K
18 –––180K
22 –––220K
27 –––270K
33 –––330K
39 –––390K
47 –––470K
56 –––560K
68 –––680K
82 –––820K
100 –––101K
120 –––121K
150 –––151K
180 –––181K
220 –––221K
270 –––271K
330 –––331K
470 –––471K
560 –––561K
680 –––681K
820 –––821K
1000 –––102K
Check product availability at www.ohmite.com
= Standard values Non-standard values subject to a minimum handling charge per item.
Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 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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