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L50J5R0

Description
Wirewound Resistors - Chassis Mount 225watt 250ohm 5% High Power
CategoryPassive components    The resistor   
File Size338KB,2 Pages
ManufacturerOhmite
Websitehttps://www.ohmite.com
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Wirewound Resistors - Chassis Mount 225watt 250ohm 5% High Power

L50J5R0 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
package instructionRadial,
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresFLAMEPROOF
structureAll-Welded
JESD-609 codee0
Manufacturer's serial number270
Installation featuresCHASSIS MOUNT
Number of terminals2
Maximum operating temperature350 °C
Package diameter14.3 mm
Package length101.6 mm
Package shapeTUBULAR PACKAGE
Package formRadial
Rated power dissipation(P)50 W
Rated temperature25 °C
resistance5 Ω
Resistor typeFIXED RESISTOR
seriesL50
surface mountNO
technologyWIRE WOUND
Temperature Coefficient400 ppm/°C
Terminal surfaceTin/Lead (Sn/Pb)
Terminal shapeLUG
Tolerance5%
Operating Voltage1625 V
Base Number Matches1
270 Series
Vitreous Enamel Power
Select 270 Type fixed resistors for applications
requiring wattage ratings from 12 to 1000 watts.
The 270 Type resistors are equipped with lug termi-
nals suitable for soldering or sturdy bolt connection.
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.
F e at u r e S
• Terminals suitable for soldering
or bolt connection
• High wattage applications
• Rugged lead free vitreous enamel coating
• Flame resistant coating
• All-welded construction
• RoHS compliant available
• “Fast on” option – see terminal 538,
http://www.ohmite.com/techdata/terminals.pdf
S e r I e S S P e C I F I C at I O N S
Series
L12
L25
L50
L100
L175
L225
L500
L1000
Wattage
12
25
50
100
175
225
500
1000
Ohms
0.1-51K
0.15-100K
0.38-260K
0.23-101K
0.13-101K
0.16-129K
0.38-218K
0.69-392K
Core Code
D
K
K
M
P
P
S
S
Voltage
565
625
1625
2845
3595
4595
4970
8900
Std. Terminal
57
40
40
40
46
46
45
45
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
CharaCterIStICS
Coating
Lead free vitreous enamel. Large models (500 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% @ +25°C to 0% @ +350°C.
Tolerance
±5% 1Ω and over (J); ±10% under 1Ω (K)
Power rating
Based on 25°C free air rating.
Overload
10 times rated wattage for 5 seconds.
Temperature coefficient
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 rating (Measured from terminal to
mounting bracket)
Max. amps
use the formula √P/R
Power limitations for
When resistance exceeds the resistance values listed, derate the Power Rating by 25% to
high resistance values
improve reliability.
No power derating necessary for ratings higher than 100W.
Power
rating
12W
25W
50W
Resistance
value
12,000Ω
3,900Ω
100W
35,000Ω
75,000Ω
Mounting Hardware
see http://www.ohmite.com/techdata/lug-mounting.php
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
113
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Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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