1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 87
Commercial Grade Military Grade Watts Ohms Voltage
81F RW70U 1 0.1-6K 150
82 2 0.1-8K 100
83F RW79U 3 0.1-20K 200
83J RW69V
85F RW74U 5 0.1-75K 460
85J RW67V
80F RW78U 10 0.1-150K 1000
80J RW68V
Non-Inductive versions available. Insert “N” before tolerance code. Example: 83NF2K21
LD
1.5 in. / 38.1mm
Ohmite’s highest quality conformal axial terminal
silicone-ceramic coated resistors for applications
requiring high precision and stability. These resistors
have a low temperature coefficient and maintain a
high degree of stability under demanding conditions.
Coating Silicone-ceramic
Core Ceramic
Terminals Solder-coated copper clad axial
Derating Linearly from 100% @ +25°C to 0% @ +275°C.
Tolerance ±5% (J type), ±1% (F type) (other tolerances available)
Power rating Based on 25°C free air rating
Maximum ohmic values See chart
Overload Under 5 watts: 5 times rated wattage for 5 seconds. 5 watts and over: 10 times
rated wattage for 5 seconds
Temperature coefficient Under 1Ω; ±90 ppm/°C
1 to 9.99Ω: ±50 ppm/°C
10Ω and over; ±20 ppm/°C
Dielectric withstanding voltage 500 VAC: 1 watt rating; 1000 VAC: 2, 3, 5, 7, and 10 watt rating
FEATURES
•Designedforprecisionpowerapplications
•All-weldedconstruction
•RWSeries“Mil”valueresistorsmarkedwith
“Mil”inaccordancewithMIL-R-26specifica-
tions
CHARACTERISTICS
SERIES SPECIFICATIONS
DIMENSIONS
(in./mm max.) Watts Length Diam. Lead gauge
81F RW70U 1 0.437 / 11.1 0.125 / 3.2 24
82 2 0.406 / 10.3 0.219 / 5.6 20
83F RW79U 3 0.593 / 15.1 0.218 / 5.5 20
83J RW69V
85F RW74U 5 0.937 / 23.8 0.343 / 8.7 18
85J RW67V
80F RW78U 10 1.842 / 46.8 0.406 /10.3 18
80J RW68V
80 Series
Commercial Grade Acrasil®‚ Silicone-Ceramic
Conformal Axial Terminal Wirewound
1% Tolerance (5% available)
RW Series
Military Grade 80 Series MIL-R-26 Qualified
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
88
Commercial Grade (80 Series) Part Numbers
0.1 –––R10
0.11 –––R11
0.121 –––R121
0.133 –––R133
0.15 –––R15
0.162 –––R162
0.182 –––R182
0.2 –––R20
0.221 –––R221
0.249 –––R249
0.274 –––R274
0.301 –––R301
0.332 –––R332
0.374 –––R374
0.392 –––R392
0.402 –––R402
0.453 –––R453
0.499 –––R499
0.511 –––R511
0.562 –––R562
0.619 –––R619
0.681 –––R681
0.75 –––R75
0.825 –––R825
0.909 –––R909
1 –––1R0
1.1 –––1R1
1.21 –––1R21
1.330 –––1R33
1.5 –––1R5
1.62 –––1R62
1.82 –––1R82
2 –––2R0
2.21 –––2R21
2.49 –––2R49
2.74 –––2R74
3.01 –––3R01
3.32 –––3R32
3.74 –––3R74
4.02 –––4R02
4.53 –––4R53
4.99 –––4R99
5.11 –––5R11
5.62 –––5R62
6.19 –––6R19
6.81 –––6R81
7.5 –––7R5
8.25 –––8R25
9.09 –––9R09
10 –––10R
11 –––11R
12.1 –––12R1
13.3 –––13R3
15 –––15R
16.2 –––16R2
18.2 –––18R2
20 –––20R
22.1 –––22R1
24.9 –––24R9
27.4 –––27R4
30.1 –––30R1
33.2 –––33R2
37.4 –––37R4
40.2 –––40R2
45.3 –––45R3
49.9 –––49R9
51.1 –––51R1
56.2 –––56R2
61.9 –––61R9
68.1 –––68R1
75 –––75R
82.5 –––82R5
90.9 –––90R9
100 –––100
110 –––110
121 –––121
133 –––133
150 –––150
162 –––162
182 –––182
200 –––200
221 –––221
249 –––249
274 –––274
301 –––301
332 –––332
374 –––374
402 –––402
453 –––453
499 –––499
511 –––511
562 –––562
619 –––619
681 –––681
750 –––750
825 –––825
909 –––909
1,000 –––1K0
1,100 –––1K1
1,210 –––1K21
1,330 –––1K33
1,500 –––1K5
1,620 –––1K62
1,820 –––1K82
2,000 –––2K0
2,210 –––2K21
2,490 –––2K49
2,740 –––2K74
3,010 –––3K01
3,320 –––3K32
3,740 –––3K74
4,020 –––4K02
4,530 –––4K53
4,990 –––4K99
5,110 –––5K11
5,620 –––5K62
6,190 –––6K19
6,810 –––6K81
7,500 –––7K5
8,250 –––8K25
9,090 –––9K09
10,000 –––10K
10,500 –––10K5
11,000 –––11K
12,100 –––12K1
13,300 –––13K3
15,000 –––15K
16,200 –––16K2
18,200 –––18K2
20,000 –––20K
22,100 –––22K1
24,900 –––24K9
27,400 –––27K4
30,100 –––30K1
33,200 –––33K2
37,400 –––37K4
38,300 –––38K3
40,200 –––40K2
45,300 –––45K3
49,900 –––49K9
51,100 –––51K1
56,200 –––56K2
61,900 –––61K9
68,100 –––68K1
75,000 –––75K
82,500 –––82K5
90,900 –––90K9
100,000 –––100K
150,000 –––150K
200,000 –––200K
=Standardvalues
= Non-standard values
subject to minimum
handling charge per
item
Shadedvaluesinvolve
very fine resistance wire
and should not be used
in critical applications
without burn-in and/or
thermal cycling.
Ohmic value
81F––– 1
83F––– 3
85F––– 5
80F––– 10
Wattage
Part No.
Prefix
Suffix
Ohmic value
81F––– 1
83F––– 3
85F––– 5
80F––– 10
Wattage
Part No.
Prefix
Suffix
Ohmic value
81F––– 1
83F––– 3
85F––– 5
80F––– 10
Wattage
Part No.
Prefix
Suffix
Ohmic value
81F––– 1
83F––– 3
85F––– 5
80F––– 10
Wattage
Part No.
Prefix
Suffix
Ohmic value
85F––– 5
80F––– 10
Wattage
Part No.
Prefix
Suffix
81NJR10
80 Series
Acrasil®
Silicone Ceramic
Conformal Axial
Term. Wirewound
Resistance Value
R10 =0.10Ω
1R0 =1.0Ω
10R =10.0Ω
250 =250Ω
1K0 =1,000Ω
4K5 =4,500Ω
50K =50,000Ω
Tolerance
F= 1%
J= 5%
Wattage
1= 1W
2
3
5
0=10W
Non-Inductive Winding
Optional (blank = std. winding)
Commercial Grade
RW Series
Military grade
Resistance Value
R100 = 0.1�
1R00 = 1.0�
10R0 = 10.0�
1000 = 100�
1001 = 1000�
Tolerance
F= 1%
J= 5%
1002 = 10K�
1503 = 150K�
Military Grade This product will
not be made avail-
able as RoHS
Compliant.
For RoHS
Compliant equiva-
lent, see 40 Series.
ORDERING INFORMATION
80 Series
Commercial Grade Acrasil®‚ Silicone-Ceramic
Conformal Axial Terminal Wirewound
1% Tolerance (5% available)
RW Series
Military Grade 80 Series MIL-R-26 Qualified
