Low Profile Power Resistor
Type CJR Series
Literature No. 9-1773441-8
Issued: 11-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
Key Features
■
High Power Dissipation
•1000W in a 15mm
package
■
Low Profile
•Fits where other
resistors cannot
■
IP64 Environmental
Protection
•World-wide use in any
industry
■
High Pulse Capability
•Fits today’s dynamic
breaking requirements
■
Overload 20 Times
Rated Power
•A compact and cost
effective solution
■
Silicone-Free
•Designed for automotive
assembly lines
Applications
■
Braking
■
Capacitor Charging &
Discharging
■
Crowbar
■
Filter
■
Power Supplies
■
Electrical Machinery
■
Robotics
Type CJR Series
The CJR range of power resistors
are aluminium housed and wire
wound, designed to withstand high
adiabatic pulses in a compact
package. These devices offer a
high power dissipation capacity
with the appropriate heat sink and
superior environmental protection
(IP64). The product is silicone free
for specific use on assembly cells
within the automotive assembly
industry.
Characteristics -
Electrical
CJR250 CJR500 CJR750 CJR1000
Power Dissipation Free Air (W): 100 150 200 250
Power Dissipation Mounted on Heatsink (W): 250 500 750 1000
Ohmic Value Min (Ohms): 1Ω1Ω2Ω2Ω
Max: 30Ω60Ω100Ω130Ω
Resistance Tolerance (%): 5%, 10% 5%, 10% 5%, 10% 5%, 10%
Maximum Case Temperature (°C): 270 270 270 270
Stability at Rated Power - 1000hr’s (%): ±6.5% ±6.5% ±6.5% ±6.5%
Insulation Resistance @500V (GΩ): >1.0 >1.0 >1.0 >1.0
Isolation Voltage - 1min AC rms (kV): 2.5kV 2.5kV 2.5kV 2.5kV
Series Inductance @ 10kHz (mH): <2.5 <4.5 <5.0 <13.0
Capacitance terminal to case @ 10kHz (pF) <200 <300 <400 <500
Operating Temperature Range (°C): -40 to 75 -40 to 75 -40 to 75 -40 to 75
Overload Ratings: 20 x Rated power for 1 second every minute
4 x Rated power for 5 seconds every minute
Terminations: PTFE / ETFE coated flying leads (to BS6360)
Storage Temperature Range (°C): -40 to 270
IP Rating: IP64
Case Finish: Natural Anodised
Heat Dissipation: Although the use of proprietary heat sinks with lower thermal
resistance is acceptable, up rating is not recommended. The use
of proprietary heat sink compound to improve
thermal conductivity is essential.
L2
L3 L3
L1
72.0
60.0
ø4.8 15
Dimensions
Type L1 L2 L3
CJR250 110 90 -
CJR500 190 170 85
CJR750 270 250 125
CJR1000 350 330 165
Low Profile Power Resistor
Type CJR Series
Literature No. 9-1773441-8
Issued: 11-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
Derating Curve
Pulse Energy
0 50 100 150 200 250 300
1100
1000
900
800
700
600
500
400
300
200
100
0
Power (W)
Heatsink Temp. (degC)
Adiabatic Pulse Power (Duration <0.2sec)
12000
10000
8000
6000
4000
2000
0
0 50 100 150
Resistance (Ohms)
Energy (J)
CJR1000
CJR750
CJR500
CJR250
CJR1000
CJR750
CJR500
CJR250
CJR 500 1RO J
Common Part
250
500
750
1000
Power Rating
1ohm (1Ω) 1R0
Resistance Value Tolerance
CJR - Low Profile
Power Resistor
J - 5%
K - 10%
How to Order
