80 Series RW Series

80 Series
Commercial Grade Acrasil®‚ Silicone-Ceramic
Conformal Axial Terminal Wirewound
1% Tolerance (5% available)
RW Series
F e at u r e s
•Designed for precision power applications
•All-welded construction
•RW Series “Mil” value resistors marked with
“Mil” in accordance with MIL-R-26 specifications
Military Grade 80 Series MIL-R-26 Qualified
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.
S e r i e s s p e c i f i c at i o n s
ommercial Grade Military Grade
C
81F
RW70U
82
83F
RW79U
83J
RW69V
85F
RW74U 85J
RW67V
80F
RW78U 80J
RW68V
Watts
1
2
3
Ohms
0.1-6K
0.1-8K
0.1-20K
Voltage
150
100
200
5
0.1-75K
460
10
0.1-150K 1000
Non-Inductive versions available. Insert “N” before tolerance code. Example: 83NF2K21
Characteristics
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
Dimensions
(in./mm max.)
1.5 in. / 38.1mm
L
D
81F
RW70U
83F
83J
RW79U
RW69V
82
85F
85J
80F
80J
RW74U RW67V
RW78U RW68V
Watts
1
2
Length
Diam.
0.437 / 11.1
0.125 / 3.2
0.406 / 10.3
0.219 / 5.6
Lead gauge
24
20
3
0.593 / 15.1
0.218 / 5.5
20
5
0.937 / 23.8
0.343 / 8.7
18
10
1.842 / 46.8
0.406 /10.3 18
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
87
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
OR D ERIN G IN F ORMATION
Non-Inductive Winding
Optional (blank = std. winding)
81NJR10
80 Series
Acrasil®
Silicone Ceramic
Conformal Axial
Term. Wirewound
88
Wattage Tolerance Resistance Value
R10 = 0.10Ω
1 = 1W F= 1%
J = 5%
1R0 = 1.0Ω
2
10R = 10.0Ω
3
250 =
250Ω
5
1K0 = 1,000Ω
0 = 10W
4K5 = 4,500Ω
50K = 50,000Ω
  
   
  
   
  
   
  
   
  
   
  
   
  
   
   
  
   
  
   
  
  
   
  
   
  
   
  
   
  
   
  
   
  
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
6,810
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
Military Grade
����������
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�
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com







































































































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
85F––– 5
80F––– 10
Ohmic value
1
3
5
10
81F–––
83F–––
85F–––
80F–––
Ohmic value
1
3
5
10
81F–––
83F–––
85F–––
80F–––
Ohmic value
1
3
5
10
81F–––
83F–––
85F–––
80F–––
Ohmic value
1
3
5
10
81F–––
83F–––
85F–––
80F–––
Commercial Grade
  
   
  
   
  
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
   
  
   
  
   
  
  
   
  
   
Part No.
Prefix 
Suffix
–––1K21
–––1K33
–––1K5
–––1K62
–––1K82
–––2K0
–––2K21
–––2K49
–––2K74
–––3K01
–––3K32
–––3K74
–––4K02
–––4K53
–––4K99
–––5K11
–––5K62
–––6K19
–––6K81
–––7K5
–––8K25
–––9K09
–––10K
–––10K5
–––11K
–––12K1
–––13K3
–––15K
–––16K2
–––18K2
–––20K
–––22K1
–––24K9
Wattage
Part No.
Prefix 
Suffix
–––27K4  
–––30K1  
–––33K2  
–––37K4  
–––38K3  
–––40K2  
–––45K3  
–––49K9  
–––51K1  
–––56K2  
–––61K9  
–––68K1  
–––75K  
–––82K5 
–––90K9 
–––100K 
–––150K 
–––200K 

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
12.1
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
Part No.
Prefix 
Suffix
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
Wattage

   
  
   
  
   
  
   
   
  
   
  
   
  
  
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
   
Part No.
Prefix 
Suffix
–––2R21
–––2R49
–––2R74
–––3R01
–––3R32
–––3R74
–––4R02
–––4R53
–––4R99
–––5R11
–––5R62
–––6R19
–––6R81
–––7R5
–––8R25
–––9R09
–––10R
–––11R
–––12R1
–––13R3
–––15R
–––16R2
–––18R2
–––20R
–––22R1
–––24R9
–––27R4
–––30R1
–––33R2
–––37R4
–––40R2
–––45R3
–––49R9
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
0.511
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
Part No.
Prefix 
Suffix
–––R10
–––R11
–––R121
–––R133
–––R15
–––R162
–––R182
–––R20
–––R221
–––R249
–––R274
–––R301
–––R332
–––R374
–––R392
–––R402
–––R453
–––R499
–––R511
–––R562
–––R619
–––R681
–––R75
–––R825
–––R909
–––1R0
–––1R1
–––1R21
–––1R33
–––1R5
–––1R62
–––1R82
–––2R0
Wattage

Wattage

Ohmic value
Commercial Grade (80 Series) Part Numbers
 = 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.
This product will
not be made available as RoHS
Compliant.
For RoHS
Compliant equivalent, see 40 Series.