A Series

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 eat u res
A pp l ications
• 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
Resistance1
Series
(ohms)
AV
3.3 to 10K
AW
4.7 to 15K
AX
1.0 to 3.3K
AY
2.2 to 6.8K
AZ
1.5 to 4.7K
1E12
P
avg.2
(watts)
2.0
2.5
3.5
4.5
5.5
Impulse
Voltage3
(volts)
1000
1500
1000
2000
2500
Energy4
(joule)
250
400
700
1400
2800
Standard Values ±10%; 2Free Air 40°C Ambient; 3In Air; 4Single Impulse
c h aracteritics
Resistance Element Bulk Ceramic
Terminals Radial; 100% Sn solder coated radial (60/40 solder available upon request)
Coating UL94V0, solvent resistant epoxy
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
Mounting clip
D
H
L
Part No.
5911E
5910E
Dim. (mm)
D H L for Series Color
20 23 13 AX and AY White
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 operating temperatures. Use (2)
saddle clips per resistor for
extra stability.
Parameter Max. ∆R
Life Test +5%
Single Pulse ±1.5%
Energy
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
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.
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
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
A Series
PulsEater® Ceramic Composition
Available in E12 Ohmic values
d i m ensions
AV - AY
AZ
L
P
avg.2
Series (watts)
L
D H
AV
D
2.0
AW
4.7mm
S
S
Offset crimp width is
2x terminal wire gauge
7.6mm
AZ
5.5
20 17.5
26
21
30
12.5
19
21
25
S Term. wire
norm. gauge Weight
(mm) (AWG)
(g)
22
13
15
4.5
H
max.
(mm)
13
20
3.5
AY
D
max.
(mm)
15
2.5
AX
16.7mm
L
max.
(mm)
12.5
26
5.4
18
19
18
22.5
26
3.9
20 27
10
18
33
AZ series also available
with crimps upon request
or d erin g infor m ation
RoHS compliant
A W 5 6 G K E
52
 = Standard values











220
270
330
470
560
680
820
1000
AY–––
AZ–––
AX–––
AV–––
Series
Part No.
Prefix 
Suffix
–––221K   
–––271K –––331K   
–––471K   
–––561K –––681K  
–––821K  
–––102K      AW–––
Ohmic value
 




 
AY–––
AZ–––



AX–––
AY–––
AZ–––
AX–––
AW–––
AV–––
Check product availability at www.ohmite.com
AV–––
 


33
39
47
56
68
82
100
120
150
180
AW–––
Ohmic value
AX–––
AV–––
AW–––
AY–––
AZ–––

Series
Part No.
Prefix 
Suffix
–––330K
–––390K
–––470K
–––560K
–––680K
–––820K
–––101K
–––121K
–––151K
–––181K


Series
Part No.
Prefix 
Suffix
5.6–––56GK 6.8–––68GK  8.2–––82GK 
10 –––100K     
12 –––120K
15 –––150K   
18 –––180K
22 –––220K     
27 –––270K 


Series
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   
Ohmic value
Standard Values
Tolerance
Ohm Value
K = 10% std.
Example:
33G = 3.3 Ohms M = 20%
330 = 33 Ohms
331 = 330 Ohms
Ohmic value
Size
  
Non-standard values subject to a minimum handling charge per item.
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com