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 car-
bon composition resistors
which can be difficult to
source.
OX/OY Series
Ceramic Composition
10% Tolerance
1.496 (38.3 3)
L
D
Dimensions (in. / mm)
Diameter D
Max
Watts
max.*
1
Resistance
Length L
max.
Lead
Joules Working
FEATURES
Series
min.
max.
diameter max.**
volts
OX
3.3 100K
0.67 / 17.0 0.217 ± .0ꢀ/ꢀ.ꢀ± 1 0.031 / 0.8
0.89 / 22.6 0.276 ± .0ꢀ/7.0± 1 0.031 / 0.8
ꢀ0
80
300
• Replaces 1 and 2 watt carbon
composition resistors
• Meets high energy density
demands
OY
2
3.3
1M
400
* at 70°C. **For a single impulse.
• High peak power
• 10% Tolerance
STOCK PART NUMBERS FOR STANDARD RESISTANCE VALUES
Part Number
Part Number
Part Number
Ohms 1 Watt 2 Watt
Part Number
Ohms 1 Watt 2 Watt
SPECIFICATIONS
Material
Terminals: Solder-coated axial
leads
Coating: UL-94 V0 approved sili-
cone
Ohms 1 Watt
OX33GK
2 Watt
OY33GK
Ohms 1 Watt
2 Watt
ꢀ6,000 0Xꢀ63K OYꢀ63K
68,000 OX683K OY683K
82,000 OX823K OY823K
100,000 OX104K OY104K
120,000 ——— OY124K
1ꢀ0,000 ——— OY1ꢀ4K
180,000 ——— OY184K
220,000 ——— OY224K
270,000 ——— OY274K
330,000 ——— OY334K
390,000 ——— OY394K
470,000 ——— OY474K
ꢀ60,000 ——— OYꢀ64K
680,000 ——— OY684K
820,000 ——— OY824K
2,200 OX222K
2,700 OX272K
3,300 OX332K
3,900 OX392K
4,700 OX472K
ꢀ,600 OXꢀ62K
6,800 OX682K
8,200 OX822K
10,000 OX103K
12,000 OX123K
1ꢀ,000 OX1ꢀ3K
18,000 OX183K
22,000 OX223K
27,000 OX273K
33,000 OX333K
39,000 OX393K
47,000 OX473K
OY222K
OY272K
OY332K
OY392K
OY472K
OYꢀ62K
OY682K
OY822K
OY103K
OY123K
OY1ꢀ3K
OY183K
OY223K
OY273K
OY333K
OY393K
OY473K
3.3
82 OX820K
100 OX101K
120 OX121K
1ꢀ0 OX1ꢀ1K
180 OX181K
220 OX221K
270 OX271K
330 OX331K
390 OX391K
470 OX471K
ꢀ60 OXꢀ61K
680 OX681K
820 OX821K
1,000 OX102K
1,200 OX122K
1,ꢀ00 OX1ꢀ2K
1,800 OX182K
OY820K
OY101K
OY121K
OY1ꢀ1K
OY181K
OY221K
OY271K
OY331K
OY391K
OY471K
OYꢀ61K
OY681K
OY821K
OY102K
OY122K
OY1ꢀ2K
OY182K
3.9 OX39GK OY39GK
4.7 OX47GK OY47GK
ꢀ.6 OXꢀ6GK OYꢀ6GK
6.8 OX68GK OY68GK
8.2 OX82GK OY82GK
Derating: Linear from 100% @
+70°C to 0% @ +200°C
10 OX100K
12 OX120K
1ꢀ 0X1ꢀ0K
18 OX180K
22 OX220K
27 OX270K
33 OX330K
39 OX390K
47 OX470K
ꢀ6 OXꢀ60K
68 OX680K
OY100K
OY120K
OY1ꢀ0K
OY180K
OY220K
OY270K
OY330K
OY390K
OY470K
OYꢀ60K
OY680K
Electrical
Tolerance: 10% standard
Power Rating: Based on 70°C
free air rating.
Temperature Coefficient:
-1300 300ppm/°C.
1 MEG
———
OY10ꢀK
RESISTANCE TO PULSE
PERFORMANCE CHARACTERISTICS
Test
OX
OY
0.80%
0.60%
0.40%
0.20%
0.00%
DC 20KV
OY Series
Max Working Voltage
Dielectric Strength
Max Overload Voltage
Max Pulse Voltage1
Pulse Tolerance, 100 pulses
Test
300V
ꢀ00V
600V
14KV
400V
700V
800V
20KV
1 sec. on
1 sec. off
10 Kohms
1240V @ ꢀ2µF, 40J/ 3ꢀ sec. 1640V @ ꢀ2µF, 70J/3ꢀ sec.
Condition
Maximum ∆R
± ꢀ5
± ±25 ꢁ 0.0ꢀohmꢂ
± ꢀ5
± ±25 ± 0.0ꢀ ohmꢂ
± ꢀ5
1 Kohm
Life Test
MIL-STD-202, Method 108
2x rated V, ꢀ sec ON @ 70°C
1 sec ON, 1 sec OFF
MIL-STD-202, Method 107
1000 hrs @ 40°C, 90 - 9ꢀ5 RH
100 ohms
Short Time Overload
Resistance to Pulse1 20,000 cycles
Thermal Shock
0
100
1,000
10,000
20,000
Cycles
Moisture Resistance
0.80%
0.60%
0.40%
0.20%
0.00%
DC 14KV
1 sec. on
1 sec. off
OX Series
1Related text, see figures left
10 Kohms
1 Kohm
100 ohms
0
100
1,000
10,000
20,000
Cycles
Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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