F E A T U R E S
S P E C I F I C A T I O N S
• Replaces 1 and 2 watt carbon
composition resistors
• Meets high energy density
demands
• High peak power
• 10% Tolerance
Material
OX/OY Series
Terminals: Pb Free Solder-coated
axial
Coating: UL-94 V0 approved
silicone
Derating: Linear from 100% @
+70°C to 0% @ +200°C
Operating Temp. Range: -40°C
to +220°C
Ceramic Composition
10% Tolerance
1.50" ±.118
0.031" nom.
(0.8mm)
L
D
38.0mm ±3
C
Electrical
Tolerance: ±10% standard
Power Rating: Based on 70°C
free air rating.
Temperature Coefficient:
-1300 ±300ppm/°C.
Dimensions (in. / mm)
Max
Qty.
per
reel
1000
500
Watts
max.*
1
2
Resistance
min. max. ±.039 (±1.0)
3.3 100K
3.3 1M
Length L
Length C
max.
Diameter D
±.039 (±1.0)
0.217 / 5.5
0.276 / 7.0
Joules Working
Series
OX
OY
max.**
50
80
volts
300
400
0.65 / 16.5 0.748 / 19.0
0.748 / 19.0 0.886 / 22.5
R E E L D I M E N S I O N S
* at 70°C. **For a single impulse.
13"
3"
The OX/OY Series of fixed ceramic resistors are ideal for circuitry associated with surges, high
peak power or high energy. They offer enhanced performance in high voltage power supplies, R-C
snubber circuits, and inrush limiters. The OX/OY resistors can often replace carbon composition
resistors which can be difficult to source.
2.88"
ø 1.13"
R E S I S T A N C E T O P U L S E
P E R F O R M A N C E C H A R A C T E R I S T I C S
0.80%
0.60%
0.40%
0.20%
0.00%
DC 20KV
see circuit for
test conditions
OY Series
Test
OX
OY
Max Working Voltage
Dielectric Strength
Max Overload Voltage
Max Pulse Voltage1
300V
500V
600V
14KV
400V
700V
800V
20KV
10 Kohms
1 Kohm
Pulse Tolerance, 100 pulses
1240V @ 52µF, 40J/ 35 sec. 1640V @ 52µF, 70J/35 sec.
100 ohms
Test
Life Test
Condition
Maximum ΔR
±5%
±(2% + 0.05ohm)
±5%
±(2% ± 0.05 ohm)
±5%
0
100
1,000
Cycles
10,000
20,000
MIL-STD-202, Method 108
2x rated V, 5 sec ON @ 70°C
see circuit for test conditions
MIL-STD-202, Method 107
1000 hrs @ 40°C, 90 - 95% RH
Short Time Overload
Resistance to Pulse1 20,000 cycles
Thermal Shock
0.80%
0.60%
0.40%
0.20%
0.00%
DC 14KV
see circuit for
test conditions
OX Series
10 Kohms
Moisture Resistance
1See figures, left
1 Kohm
100 ohms
O R D E R I N G I N F O R M AT I O N
RoHS Compliant
0
100
1,000
10,000
20,000
Cycles
� ꢀ ꢁ ꢂ ꢃ ꢄ ꢅ
1 sec. on / 1 sec. off
Size
Tolerance
Ohm Value
14KV and 20KV
OX = 1W
OY = 2W
K= 10% Standard
Example:
33G = 3.3 Ohms
330 = 33 Ohms
331 = 330 Ohms
10 kohm
values used in cir-
cuit as shown; full
voltage not applied
directly to resistor.
Max. Pulse
Voltage
1000 pF
R.U.T.
Check product availability at www.ohmite.com
S TA N D A R D P A R T N U M B E R S F O R O X / O Y S E R I E S
Wattage
Wattage
Wattage
Wattage
Wattage
Wattage
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
3.3 ––33GKE
3.9 ––39GKE
4.7 ––47GKE
5.6 ––56GKE
6.8 ––68GKE
8.2 ––82GKE
10 ––100KE
12 ––120KE
15 ––150KE
18 ––180KE
22 ––220KE
27 ––270KE
33 ––330KE
39 ––390KE
47 ––470KE
56 ––560KE
68 ––680KE
82 ––820KE
100 ––101KE
120 ––121KE
150 ––151KE
180 ––181KE
220 ––221KE
270 ––271KE
330 ––331KE
390 ––391KE
470 ––471KE
560 ––561KE
680 ––681KE
820 ––821KE
1000 ––102KE
1200 ––122KE
1500 ––152KE
15000 ––153KE
18000 ––183KE
22000 ––223KE
27000 ––273KE
33000 ––333KE
39000 ––393KE
47000 ––473KE
56000 ––563KE
68000 ––683KE
82000 ––823KE
100000 ––104KE
120000 ––124KE
150000 ––154KE
180000 ––184KE
220000 ––224KE
270000 ––274KE
330000 ––334KE
390000 ––394KE
470000 ––474KE
560000 ––564KE
680000 ––684KE
820000 ––824KE
1 MEG ––105KE
1800 ––182KE
2200 ––222KE
2700 ––272KE
3300 ––332KE
3900 ––392KE
4700 ––472KE
5600 ––562KE
6800 ––682KE
8200 ––822KE
10000 ––103KE
12000 ––123KE
52
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