200 Series
Brown Devil® Vitreous Enamel Power
Ohmite’s Brown Devil® is a small, exceptionally
durable power resistor. It features all-welded con-
struction 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 con-
struction, which accommodates rigid mounting with
brackets or thru bolts.
F ꢁ at u ꢀ ꢁ S
Mounting brackets not included with resistors.
•ꢀRuggedꢀleadꢀfreeꢀvitreousꢀenamelꢀcoating
•ꢀAll-weldedꢀconstruction.
•ꢀSelfꢀsupportingꢀterminalꢀmountingꢀoption.
•ꢀHigherꢀpowerꢀratings.
•ꢀFlame-resistantꢀleadꢀfreeꢀvitreousꢀenamelꢀcoating.
•ꢀRoHSꢀcompliantꢀproductꢀavailable.ꢀAddꢀ“E”ꢀsuffixꢀtoꢀ
part number to specify.
SꢁꢀꢂꢁS SPꢁcꢂFꢂcatꢂONS
Series Wattage
Ohms
Lead Gauge Max. Voltage*
B5
B8
B12
B20
5.25
8.0
12.0
20.0
0.1-20K
0.03-25K
0.08-51K
0.1-100K
20
18
18
18
187
250
625
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 resis-
tance value of specified product
chaꢀactꢁꢀꢂStꢂcS
lead-free vitreous enamel
Ceramic
Coating
Core
Tinned axial; RoHS solder composition is 96% Sn, 3.5%
Ag, 0.5% Cu
Terminals
Linearly from 100% @ +25°C to 0% @ +350°C
Derating
1Ω+: ±5%
Tolerance
under 1Ω: ±10%
Based on 25°C free air rating
Power rating
Overload
10 times rated wattage for 5 seconds
5Ω and under: ±400 ppm/°C
Above 5Ω: ±260 ppm/°C
Temperature coefficient
To calculate, use the formula √P/R
Max. amps
(continued)
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