200 Series

200 Series
Brown Devil® Vitreous Enamel Power
Ohmite’s Brown Devil® is a small, exceptionally
durable power resistor. It features all-welded construction and rugged, flame resistant conformal lead
free vitreous enamel coating to ensure successful
performance under high temperatures.
The wirewound 200 Series has a hollow-core construction, which accommodates rigid mounting with
brackets or thru bolts.
Mounting brackets not included with resistors.
F e at u r e s
•Rugged lead free vitreous enamel coating
•All-welded construction.
•Self supporting terminal mounting option.
•Higher power ratings.
•Flame-resistant lead free vitreous enamel coating.
•RoHS compliant product available. Add “E” suffix to
part number to specify.
S ERIE S S P ECI F ICATI O N S
Series Wattage
Ohms Lead Gauge Max. Voltage*
B5
5.25
0.1-20K
20
187
B8
8.0
0.03-25K
18
250
B12
12.0 0.08-51K
18
625
B20
20.0 0.1-100K
18
750 
Non-Inductive versions available. Insert “N” before tolerance code.
Example: B5NJ10RE
Also available in low cost Centohm or Silicone coating. Consult Ohmite.
* Maximum Voltage is based on Ohm’s Law [V=√P*R] as limited by the resistance value of specified product
characteristics
Coating lead-free vitreous enamel
Core Ceramic
Terminals Tinned axial; RoHS solder composition is 96% Sn, 3.5%
Ag, 0.5% Cu
Derating Linearly from 100% @ +25°C to 0% @ +350°C
Tolerance 1Ω+: ±5%
under 1Ω: ±10%
Power rating Based on 25°C free air rating
Overload 10 times rated wattage for 5 seconds
Temperature coefficient 5Ω and under: ±400 ppm/°C
Above 5Ω: ±260 ppm/°C
Max. amps To calculate, use the formula √P/R
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
83
200 Series
Brown Devil® Vitreous Enamel Power
d i m e ns i ons
(in. / mm)
1.50 in. -0/+0.25
38.10 mm -0/+6.35
D
Series
Wattage
L
D
C
B5
5.25
0.625 / 15.88
0.250 / 6.35 0.135 / 3.43
B12
12.0
0.313 / 7.94
0.188 / 4.76
B8
C
B20
L
8.0
1.000 / 25.40
0.313 / 7.94
20.0
2.000 / 50.80
0.438 / 11.11
1.750 / 44.45
Lead Gauge
0.188 / 4.76
0.250 / 6.35
20
18
18
18 
o r d e r i n g i nfo r m a t i on
Standard Values
–––20RE   
–––22RE 
–––24RE 
–––25RE  
–––27RE 
–––30RE   
–––33RE 
–––35RE  
–––36RE –––39RE 
–––40RE  
–––43RE 
–––47RE 
–––50RE  
–––51RE 
–––56RE 
–––62RE 
–––68RE 
–––75RE   
–––82RE 
–––91RE 
–––100E   
–––110E –––120E 
–––125E  
–––130E 
–––150E  
–––160E 
–––180E 
–––200E   
–––220E 
–––225E 
–––240E 
–––250E  









Coating
Non-Inductive
Blank = Vitreous
Winding
C = Centohm
Optional (blank
S = Silicone Wattage = std. winding)
Series
84
Tolerance
F = 1%
H = 3%
J = 5%
K = 10%
270
300
330
350
360
390
400
430
450
470
500
510
560
600
620
650
680
700
750
800
820
900
910
1,000
1,100
1,200
1,250
1,300
1,500
1,600
1,750
1,800
2,000
2,200
–––270E 
–––300E  
–––330E 
–––350E  
–––360E –––390E 
–––400E  
–––430E –––450E  
–––470E 
–––500E  
–––510E 
–––560E 
–––600E  
–––620E 
–––650E –––680E 
–––700E  
–––750E   
–––800E  
–––820E 
–––900E  
–––910E –––1K0E   
–––1K1E  
–––1K2E  
–––1K25E  
–––1K3E 
–––1K5E   
–––1K6E –––1K75E  
–––1K8E –––2K0E   
–––2K2E 













2,250
2,400
2,500
2,700
2,750
3,000
3,300
3,500
3,600
3,900
4,000
4,300
4,500
4,700
5,000
5,100
5,600
6,000
6,200
6,800
7,000
7,500
8,000
8,200
8,500
9,000
9,100
10,000
11,000
12,000
12,500
13,000
13,500
15,000
–––2K25E  
–––2K4E –––2K5E  
–––2K7E 
–––2K75E –––3K0E   
–––3K3E 
–––3K5E  
–––3K6E –––3K9E 
–––4K0E  
–––4K3E –––4K5E   
–––4K7E 
–––5K0E  
–––5K1E 
–––5K6E 
–––6K0E  
–––6K2E 
–––6K8E 
–––7K0E  
–––7K5E   
–––8K0E  
–––8K2E 
–––8K5E –––9K0E 
–––9K1E –––10KE   
–––11KE 
–––12KE  
–––12K5E  
–––13KE 
–––13K5E 
–––15KE   













Part No.
Prefix 
Suffix
16,000 –––16KE 
17,500 –––17K5E  
18,000 –––18KE 
20,000 –––20KE    
22,500 –––22K5E 
25,000 –––25KE   
30,000 –––30KE  
35,000 –––35KE  
40,000 –––40KE  
45,000 –––45KE 
50,000 –––50KE  
55,000 –––55KE 60,000 –––60KE 65,000 –––65KE 70,000 –––70KE 75,000 –––75KE 80,000 –––80KE 
85,000 –––85KE 90,000 –––90KE 95,000 –––95KE 100,000 –––100KE  = Standard values; check
availability at www.ohmite.com
These values involve very fine
resistance wire and should not
be used in critical applications
without burn-in and/or thermal
cycling:
B5: 6.8K-20KΩ
B8: 12.5K-25KΩ
B12: 30K-51KΩ
B20: 22.5K-100KΩ

Made-to-order Parts
RoHS
Compliant
Ohms
1R0 = 1Ω
250 = 250Ω
1K0 = 1,000Ω
25K = 25,000Ω
25K5 = 25,500Ω
Non-Inductive Winding
Optional (blank
= std. winding)
Core Diameter
See “Core and
Terminal Selection”
RoHS
Compliant
200N8D5R000JE
Coating
200 = Vitreous
400 = Silicone
Ceramic
Wattage
3
5.25
8
12
20
Ohms
R500 = 0.500Ω
1R00 = 1Ω
250R = 250Ω
1K00 = 1,000Ω
25K0 = 25,000Ω
25K5 = 25,500Ω
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
Tolerance
F = 1%
H = 3%
J = 5%
K = 10%
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Ohmic value
20
22
24
25
27
30
33
35
36
39
40
43
47
50
51
56
62
68
75
82
91
100
110
120
125
130
150
160
180
200
220
225
240
250
Part No.
Prefix 
Suffix
Wattage








Part No.
Prefix 
Suffix
Wattage

–––R50E 
–––1R0E   
–––1R1E –––1R2E –––1R3E –––1R5E   
–––1R6E 
–––1R8E 
–––2R0E   
–––2R2E –––2R4E 
–––2R7E 
–––3R0E   
–––3R3E 
–––3R6E 
–––3R9E 
–––4R0E  
–––4R3E 
–––4R7E 
–––5R0E  
–––5R1E 
–––5R6E 
–––6R2E 
–––6R8E 
–––7R5E   
–––8R2E 
–––9R1E 
–––10RE   
–––11RE –––12RE   
–––13RE –––15RE   
–––16RE –––18RE Part No.
Prefix 
Suffix
Wattage

0.5
1
1.1
1.2
1.3
1.5
1.6
1.8
2
2.2
2.4
2.7
3
3.3
3.6
3.9
4
4.3
4.7
5
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
Wattage

Part No.
Prefix 
Suffix

Ohmic value
Wattage
See website for
custom
core info