FEATURES
? DESIGNED FOR PRECISION POWER
APPLICATIONS
? ALL-WELDED CONSTRUCTION
? RW SERIES “MIL” VALUE RESISTORS
MARKED WITH “MIL” IN ACCORDANCE
WITH MIL-R-26 SPECIFICATIONS
Electrical
Tolerance: ±5% (J TYPE),
±1% (F TYPE)
(OTHER TOLERANCES AVAILABLE).
Power rating: BASED ON 25°C FREE
AIR RATING.
Maximum ohmic values:
SEE CHART.
80 Series
Commercial Grade Acrasil ? ? Silicone-Ceramic
Conformal Axial Terminal Wirewound
1% Tol. (5% avail.)
SPECIFICATIONS
Material
Coating: SILICONE-CERAMIC.
Temperature coefficient:
O R D E R I N G I N F O R M AT I O N
This product will
Commercial Grade
not be made avail-
FOR ROHS
COMPLIANT EQUIVA -
LENT, SEE 40 Series.
Comm.
Military
Lead
Overload: Under 5 watts: 5 TIMES
RATED WATTAGE FOR 5 SECONDS. 5
WATTS AND OVER: 10 TIMES RATED
WATTAGE FOR 5 SECONDS.
Core: CERAMIC.
Terminals: SOLDER-COATED COPPER UNDER 1 Ω : ±90 PPM/°C
CLAD AXIAL. 1 TO 9.99 Ω : ±50 PPM/°C
Derating: LINEARLY FROM 10 Ω AND OVER: ±20 PPM/°C
100% @ +25°C TO Dielectric withstanding voltage:
0% @ +275°C. 500 VAC: 1 WATT RATING
1000 VAC: 2, 3, 5, 7 AND
10 WATT RATING
Non-Inductive Winding
OPTIONAL (BLANK = STD. WINDING)
81 N JR10 able as RoHS
80 Series Wattage Tolerance Resistance Value Compliant.
ACRASIL ? 1 = 1W F= 1% R10 = 0.10 ?
SILICONE CERAMIC 2 J = 5% 1R0 = 1.0 ?
CONFORMAL AXIAL 3 10R = 10.0 ?
T ERM. WIREWOUND 5 250 = 250 ?
0 = 10W 1K0 = 1,000 ?
4K5 = 4,500 ?
Military Grade 50K = 50,000 ?
??????????
RW Series
Military Grade 80 Series MIL-R-26 Qualified
1.5 IN. / 38.1mm L D
Dimensions (in./mm max.)
Grade Grade Watts Ohms Length Diam. Voltage ga.
81F RW70U 1 0.1-6K 0.437 / 11.1 0.125 / 3.2 150 24
82 2 0.1-8K 0.406 / 10.3 0.219 / 5.6 100 20
83F RW79U 3 0.1-20K 0.593 / 15.1 0.218 / 5.5 200 20
83J RW69V
85F RW74U 5 0.1-75K 0.937 / 23.8 0.343 / 8.7 460 18
85J RW67V
80F RW78U 10 0.1-150K 1.842 / 46.8 0.406 / 10.3 1000 18
80J RW68V
Non-Inductive versions available. Insert “N” before tolerance code. Example: 83NF2K21
RW Series
Military grade
Tolerance
Resistance Value F = 1%
R100 = 0.1 ? J = 5%
1R00 = 1.0 ?
10R0 = 10.0 ?
1000 = 100 ? 1002 = 10K ?
1001 = 1000 ? 1503 = 150K ?
OHMITE’S HIGHEST QUALITY CONFORMAL AXIAL TERMINAL SILICONE-CERAM -
IC 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.
COMMERCIAL GRADE PART NUMBERS
Part No.
Prefix
Suffix
Wattage
Part No.
Prefix
Suffix
Wattage
Part No.
Prefix
Suffix
Wattage
Part No.
Prefix
Suffix
Wattage
Part No.
Prefix
Suffix
Wattage
0.1
0.11
0.121
0.133
0.15
0.162
0.182
0.2
0.221
0.249
0.274
0.301
0.332
0.374
0.392
0.402
0.453
0.499
––– R10
––– R11
––– R121
––– R133
––– R15
––– R162
––– R182
––– R20
––– R221
––– R249
––– R274
––– R301
––– R332
––– R374
––– R392
––– R402
––– R453
––– R499
2.21
2.49
2.74
3.01
3.32
3.74
4.02
4.53
4.99
5.11
5.62
6.19
6.81
7.5
8.25
9.09
10
11
––– 2R21
––– 2R49
––– 2R74
––– 3R01
––– 3R32
––– 3R74
––– 4R02
––– 4R53
––– 4R99
––– 5R11
––– 5R62
––– 6R19
––– 6R81
––– 7R5
––– 8R25
––– 9R09
––– 10R
––– 11R
51.1
56.2
61.9
68.1
75
82.5
90.9
100
110
121
133
150
162
182
200
221
249
274
––– 51R1
––– 56R2
––– 61R9
––– 68R1
––– 75R
––– 82R5
––– 90R9
––– 100
––– 110
––– 121
––– 133
––– 150
––– 162
––– 182
––– 200
––– 221
––– 249
––– 274
1,210
1,330
1,500
1,620
1,820
2,000
2,210
2,490
2,740
3,010
3,320
3,740
4,020
4,530
4,990
5,110
5,620
6,190
––– 1K21
––– 1K33
––– 1K5
––– 1K62
––– 1K82
––– 2K0
––– 2K21
––– 2K49
––– 2K74
––– 3K01
––– 3K32
––– 3K74
––– 4K02
––– 4K53
––– 4K99
––– 5K11
––– 5K62
––– 6K19
27,400
30,100
33,200
37,400
38,300
40,200
45,300
49,900
51,100
56,200
61,900
68,100
75,000
82,500
90,900
100,000
150,000
200,000
––– 27K4
––– 30K1
––– 33K2
––– 37K4
––– 38K3
––– 40K2
––– 45K3
––– 49K9
––– 51K1
––– 56K2
––– 61K9
––– 68K1
––– 75K
––– 82K5
––– 90K9
––– 100K
––– 150K
––– 200K
0.511
––– R511
12.1
––– 12R1
301
––– 301
6,810
––– 6K81
0.562
0.619
0.681
0.75
0.825
0.909
1
1.1
1.21
1.330
1.5
1.62
1.82
2
––– R562
––– R619
––– R681
––– R75
––– R825
––– R909
––– 1R0
––– 1R1
––– 1R21
––– 1R33
––– 1R5
––– 1R62
––– 1R82
––– 2R0
13.3
15
16.2
18.2
20
22.1
24.9
27.4
30.1
33.2
37.4
40.2
45.3
49.9
––– 13R3
––– 15R
––– 16R2
––– 18R2
––– 20R
––– 22R1
––– 24R9
––– 27R4
––– 30R1
––– 33R2
––– 37R4
––– 40R2
––– 45R3
––– 49R9
332
374
402
453
499
511
562
619
681
750
825
909
1,000
1,100
––– 332
––– 374
––– 402
––– 453
––– 499
––– 511
––– 562
––– 619
––– 681
––– 750
––– 825
––– 909
––– 1K0
––– 1K1
7,500
8,250
9,090
10,000
10,500
11,000
12,100
13,300
15,000
16,200
18,200
20,000
22,100
24,900
––– 7K5
––– 8K25
––– 9K09
––– 10K
––– 10K5
––– 11K
––– 12K1
––– 13K3
––– 15K
––– 16K2
––– 18K2
––– 20K
––– 22K1
––– 24K9
= Standard values
= Non-standard values
subject to minimum
handling charge per
item
Shaded values involve
very fine resistance wire
and should not be used
in critical applications
without burn-in and/or
thermal cycling.
Check product availability at
www.ohmite.com
1-866-9-OHMITE ? INT’L 1-847-258-0300 ? FAX 1-847-574-7522 ? WWW.OHMITE.COM ? INFO@OHMITE.COM
Ohmite Mfg. Co.
27
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