OX/OY Series
Ceramic Composition
10% Tolerance
F e at u r e s
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.
•Replaces 1 and 2 watt
carbon composition
resistors
•Meets high energy
density demands
•High peak power
•10% Tolerance
S ER I E S S P E C I F I C AT I O N S
Series
OX
OY
Watts max.*
1
2
* at 70°C. **For a single impulse.
Resistance range
3.3Ω-100K
3.3Ω-1M
Joules max.**
50
80
Max. working volts
300
400
c h a r a c t e r i t ics
Terminals Pb-free solder-coated axial
Test Condition
Coating Silicone ceramic
Life Test MIL-STD-202, Method 108
Derating Linear from 100% @ +70°C to
0% @ +200°C
Resistance to
700V
Max Overload Voltage 600V
800V
Max Pulse Voltage1 14KV
20KV
0.80%
0.40%
1 Kohm
0.20%
100 ohms
0.00%
figures
0
0.80%
1 sec. on / 1 sec. off
1000 pF
100
1,000
Cycles
14KV and 20KV values used in circuit as
shown; full voltage
R.U.T. not applied directly to
resistor.
10,000
20,000
DC 14KV
see circuit for
test conditions
OX Series
0.60%
�R/R
10 kohm
Max. Pulse
Voltage
±5%
10 Kohms
Pulse Tolerance, 1240V @ 52µF, 1640V @ 52µF,
70J/35 sec.
100 pulses 40J/ 35 sec.
1See
±(2% ±0.05Ω)
DC 20KV
see circuit for
test conditions
OY Series
0.60%
�R/R
Dielectric Strength 500V
±5%
Resistance to Pulse
OY
400V
±(2% +0.05Ω)
20,000 cycles. See circuit for test
conditions
Moisture Resistance 1000 hrs @ 40°C,
90 - 95% RH
Power Rating Based on 70°C free air rating
Max Working Voltage 300V
Pulse1
Thermal Shock MIL-STD-202, Method 107
Tolerance ±10% standard
Temperature -1300 ±300ppm/°C.
Coefficient
±5%
Short Time Overload 2x rated V, 5 sec ON @ 70°C
Operating Temp. -40°C to +220°C
Range
OX
Maximum ∆R
10 Kohms
0.40%
0.20%
0.00%
1 Kohm
100 ohms
0
100
1,000
Cycles
10,000
20,000
(continued)
56
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
OX/OY Series
Ceramic Composition
10% Tolerance
D I ME N S I O N S
in./mm
1.50" ±.118
38.0mm ±3*
L
*approx. 27mm for
taped & reeled units
13"
6.2mm ±.5
63mm ±1
3"
2.88"
Length C
max.
0.65 / 16.5
OY
2.5mm
max.
C
Length L
Series ±.039 (±1.0)
OX
Tape and Reel Dimensions
0.031" nom.
(0.8mm)
D
0.748 / 19.0
Diameter D
±.039 (±1.0)
0.748 / 19.0 0.217 / 5.5
0.886 / 22.5 0.276 / 7.0
Qty. per
reel
10.16mm ±.80
1000
0.80mm
max.
500
L1
ø 1.13"
L2
L1 – L2 = 1mm max.
o r d e r in g info r m a t ion
RoHS Compliant
Packaging
TR = tape & reel
B = bulk
O X 8 2 G K E -TR
Size
Tolerance
Ohm Value
OX = 1W Example:
K = 10% Standard
OY = 2W 33G = 3.3 Ohms
330 = 33 Ohms
331 = 330 Ohms
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
57
2
OY–
120000
150000
180000
220000
270000
330000
390000
470000
560000
680000
820000
1 MEG
Wattage
1











Part No.
Prefix 
Suffix
OX–











Ohmic value
2
––153KE
––183KE
––223KE
––273KE
––333KE
––393KE
––473KE
––563KE
––683KE
––823KE
––104KE
1
15000
18000
22000
27000
33000
39000
47000
56000
68000
82000
100000
Wattage
OY–











Part No.
Prefix 
Suffix
OX–











Ohmic value
––182KE
––222KE
––272KE
––332KE
––392KE
––472KE
––562KE
––682KE
––822KE
––103KE
––123KE
2
1800
2200
2700
3300
3900
4700
5600
6800
8200
10000
12000
OY–











1











OX–
Ohmic value
––221KE
––271KE
––331KE
––391KE
––471KE
––561KE
––681KE
––821KE
––102KE
––122KE
––152KE
2
220
270
330
390
470
560
680
820
1000
1200
1500
1
OY–











OX–
2











Ohmic value
1
Ohmic value
OY–
2
OY–
––270KE
––330KE
––390KE
––470KE
––560KE
––680KE
––820KE
––101KE
––121KE
––151KE
––181KE
OX–
1
OX–
27
33
39
47
56
68
82
100
120
150
180
Wattage
––124KE ––154KE ––184KE ––224KE ––274KE ––334KE
––394KE
––474KE
––564KE
––684KE
––824KE ––105KE 























Part No.
Prefix 
Suffix
Wattage












Part No.
Prefix 
Suffix

––33GKE
––39GKE
––47GKE
––56GKE
––68GKE
––82GKE
––100KE
––120KE
––150KE
––180KE
––220KE
Wattage

3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
Part No.
Prefix 
Suffix
Wattage

Part No.
Prefix 
Suffix

Ohmic value
Standard part numbers for OX/OY Series