RESISTOR POWER 1.0 OHM 50W

L50J1R0

Manufacturer Part NumberL50J1R0
DescriptionRESISTOR POWER 1.0 OHM 50W
ManufacturerOhmite
Series270
L50J1R0 datasheet
 


Specifications of L50J1R0

Resistance (ohms)1Power (watts)50W
CompositionWirewoundFeaturesFlame Retardant Coating
Temperature Coefficient±400ppm/°CTolerance±5%
Coating, Housing TypeVitreous Enamel CoatedMounting FeatureBrackets (not included)
Size / Dimension0.562" Dia x 4.000" L (14.27mm x 101.60mm)Lead StyleSolder Lugs
Package / CaseRadial, TubularResistance1 Ohms
Power Rating50 WattsDimensions14.3 mm Dia.
ProductPower Resistors Wire Wound Vitreous EnamelLead Free Status / RoHS StatusContains lead / RoHS non-compliant
Other namesL50J1.0  
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Download datasheet (156Kb)Embed
270 Series
Vitreous Enamel Power
C
D
L
Series
Wattage
Ohms
L
L12
12
0.1-51K
1.75 / 44.4
25
0.15-100K
2.0 / 50.8
L25
L50
50
0.38-260K
4.0 / 101.6
L100
100
0.23-101K
6.5 / 165.1
175
0.13-101K
8.5 / 215.9
L175
L225
225
0.16-129K
10.5 / 266.7
L500
500
0.38-218K
12.0 / 304.8
L1000
1000
0.69-392K
20.0 / 508.0
Non-Inductive versions available; Other sizes available; 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
Select 270 Type fixed resistors for applications requiring wattage ratings from 12 to 1000 watts.
The 270 Type resistors are equipped with lug terminals suitable for soldering or sturdy bolt con-
nection. When secure mounting is required, the hollow core of these resistors permit fastening with
spring-type brackets, thru bolts or thru bolts with slotted-steel brackets.
Suitable for rugged applications, the 270 Type resistors feature all-welded construction and
durable lead free vitreous enamel coating. Mounting brackets not included with resistors.
o r d e r i n g i n f o
Non-inductive
F = Fast on
RoHS
Blank = Standard
(optional)
N = Non-inductive
Compliant
L
2 5 J 1 0 0 E
Series
Wattage
Tolerance
Ohms
J = 5%
1R0 = 1 Ω
Coating
250 = 250 Ω
K = 10%
Blank = Vitreous
1K0 = 1,000 Ω
C = Centohm
25K = 25,000 Ω
S = Silicone
25K5 = 25,500 Ω
Ohmic
Ohmic
value
12 Watt
value
12 Watt
0.51  L12JKR51E
180
 L12J180E
1
 L12J1R0E
270
 L12J270E
330
 L12J330E
3.3
 L12J3R3E
4.7
 L12J4R7E
390
 L12J390E
10
 L12J10RE
470
 L12J470E
560
 L12J560E
12
 L12J12RE
1000
 L12J1K0E
15
 L12J15RE
22
 L12J22RE
1200
 L12J1K2E
27
 L12J27RE
1500
 L12J1K5E
2200
 L12J2K2E
33
 L12J33RE
47
 L12J47RE
2700
 L12J2K7E
68
 L12J68RE
4700
 L12J4K7E
10000
 L12J10KE
82
 L12J82RE
100
 L12J100E
18000
 L12J18KE
150
 L12J150E
22000
 L12J22KE
51000
 L12J51KE
 = Standard values; check availability using the worldwide
inventory search at www.ohmite.com
Red outlined values supplied in Silicone-Ceramic coatings
instead of vitreous enamel.
34
Ohmite Mfg. Co.
1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
F E a T u r E S
• Terminals suitable for soldering
or bolt connection
• High wattage applications
• Rugged lead free vitreous enam-
el coating
• Flame resistant coating
• All-welded construction
See page 36
• RoHS compliant available
for mounting
• “Fast on” option – see terminal
hardware
538, page 37
Dimensions (in. / mm)
Core
D
C
Code
0.313 / 7.94
0.188 / 4.76
D
0.562 / 14.3
0.313 / 7.94
K
0.562 / 14.3
0.313 / 7.94
K
0.750 / 19.1
0.50 / 12.7
M
1.125 / 28.6
0.75 / 19.1
P
1.125 / 28.6
0.75 / 19.1
P
2.50 / 63.5
1.75 / 44.5
S
2.50 / 63.5
1.75 / 44.5
S
m a d e - t o - o r d e r p a r t S
Non-inductive
Core Diameter
Blank = Standard
See “Core and
N = Non-inductive
Terminal Selection”
RoHS Compliant
� � � � � � � � � � � � � � � �
Coating
Wattage
Ohms
R500 = 0.500 Ω
270 = Vitreous
470 = Silicone Ceramic
1R00 = 1 Ω
Terminal Type
250R = 250 Ω
See “Resistor Terminals
1K00 = 1,000 Ω
for Tubular Cores”
25K0 = 25,000 Ω
25K5 = 25,500 Ω
S t a n d a r d p a r t n u m b e r S f o r 2 7 0 S e r i e S
Wattage
Part no.
Prefix 
Suffix
1 –––1R0E 
2 –––2R0E 
3 –––3R0E 
4 –––4R0E 
5 –––5R0E 
10 –––10RE 
15 –––15RE 
25 –––25RE 
50 –––50RE 
75 –––75RE 
100 –––100E 
125 –––125E
150 –––150E 
200 –––200E 
250 –––250E 
500 –––500E 
750 –––750E 
800 –––800E 
1,000 –––1K0E 
1,500 –––1K5E 
2,000 –––2K0E 
S P E C i F i C a T i O n S
Material
Coating: Lead free vitreous
enamel. Very large models (750
watts and up) are supplied in
Silicone Ceramic. Also available
in low-cost Centohm coating;
Consult factory.
Core: Tubular ceramic.
Terminals: Solder coated radial
lug. RoHS solder composition is
96% Sn, 3.5% Ag, 0.5% Cu
Derating: Linearly from 100% @
Standard
+25°C to 0% @ +350°C.
Voltage
Terminal
Electrical
565
57
Tolerance:
625
40
±5% 1Ω and over (J)
±10% under 1Ω (K)
1625
40
Power rating: Based on 25°C free
2845
40
air rating.
3595
46
Overload: 10 times rated wattage
4595
46
for 5 seconds.
4970
45
Temperature coefficient:
8900
45
1 to 20Ω: ±400 ppm/°C.
Above 20Ω: ±260 ppm/°C
Dielectric withstanding voltage:
1000 VAC: 12 to 100 watt rating.
3000 VAC: 175 to 225 watt rat-
ing (Measured from terminal to
mounting bracket)
To calculate max. amps: use the
formula √P/R
Power limitations for high resis-
tance values: When resistance
exceeds the resistance values
listed, derate the Power Rating by
25% to improve reliability:
Power
Resistance
rating
value
Tolerance
12W
3,900Ω
J = 5%
K = 10%
25W
12,000Ω
See website for
50W
35,000Ω
custom core and
100W
75,000Ω
terminal info
Wattage
Part no.
Prefix 
Suffix
2,500 –––2K5E 
3,000 –––3K0E 
3,500 –––3K5E 
4,000 –––4K0E 
5,000 –––5K0E 
6,000 –––6K0E 
7,500 –––7K5E 
10,000 –––10KE 
12,000 –––12KE 
15,000 –––15KE 
20,000 –––20KE 
25,000 –––25KE 
30,000 –––30KE
35,000 –––35KE
40,000 –––40KE 
50,000 –––50KE 
60,000 –––60KE
75,000 –––75KE
100,000 –––100KE
150,000 –––150KE
200,000 –––200KE
250,000 –––250KE
No power
derating
necessary
for ratings
higher than
100W.