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Stackpole

WRF1 Datasheet Preview

WRF1 Datasheet

Conformal Coated Wirewound Resistor

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WRF Series
Conformal Coated Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
Conformal coating
Flameproof construction
Cut and formed product is available on select sizes
Contact factory for details
RoHS compliant / lead-free
Type / Code
WRF1
WRF2
WRF3
Power Rating
(Watts) @ 25ºC
1W
2W
3W
Electrical Specifications
Maximum
Working
Voltage
Dielectric
Withstanding
Voltage (RMS)
Resistance Temperature
Coefficient
PR
700V
-80ppm/ºC ~ +900ppm/ºC
PR
700V
-80ppm/ºC ~ +900ppm/ºC
PR
700V
-80ppm/ºC ~ +900ppm/ºC
Ohmic Range ()
and Tolerance
5%
0.1 - 33
0.1 - 220
0.1 - 220
Mechanical Specifications
Type / Code
A
Body Length
B
Body Width
C
Lead Length (Bulk)(1)
D
Lead Diameter
WRF1
0.433 max
11.00 max
0.197 max
5.00 max
1.102 ± 0.118
28.00 ± 3.00
0.031 ± 0.002
0.78 ± 0.05
WRF2
0.630 max
16.00 max
0.197 max
5.00 max
1.102 ± 0.118
28.00 ± 3.00
0.031 ± 0.002
0.78 ± 0.05
WRF3
0.630 max
16.00 max
0.197 max
5.00 max
1.102 ± 0.118
28.00 ± 3.00
0.031 ± 0.002
0.78 ± 0.05
(1) See "Resistor Packaging Specification Document" for lead length dimension for tape and reel packaged product.
Performance Characteristics
Test Test Results
Rated Ambient Temperature
Overload 15 Times the Rated Wattage
Short Time Overload
Effective Soldering
Insulation Resistance
Dielectric Withstanding Volt
Load Life @ 70ºC - 1,000 hrs.
Moisture Resistance
Shock and Vibration
Solderability
Temperature Coefficient
Operating Temperature Range: -55ºC to +200ºC (WRF 1, 2)
85ºC
Open circuit within 2 minutes
± 3% + 0.05
± 2% + 0.05
>104 M
± 2% + 0.05
± 5% + 0.05
± 5% + 0.05
± 1% + 0.05
90% tin covered min.
-80ppm/ºC ~ +900ppm/ºC
-55ºC to +225ºC (WRF 3)
Unit
inches
mm
inches
mm
inches
mm
Rev Date: 07/27/2012
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
1
www.seielect.com
marketing@seielect.com




Stackpole

WRF1 Datasheet Preview

WRF1 Datasheet

Conformal Coated Wirewound Resistor

No Preview Available !

WRF Series
Conformal Coated Wirewound Resistor
Power Derating Curve:
Stackpole Electronics, Inc.
Resistive Product Solutions
100
75
50 WRF3
WRF1, WRF2
25
0 50 85 100 150 200 225 250 300
Ambient Temperature (ºC)
How to Order
1 2 3 4 5 6 7 8 9 10
WR F 2 J B 1 0 R 0
Product Series
WRF
Conformal
Coated WW
Size Power Rating
1 1W
2 2W
3 3W
Tolerance
Code Tol Value
J 5% E24
Code
T
A
B
Packaging
Description
Size
Tape and Reel All Sizes
Ammo
Bulk
All Sizes
Legacy Part Number (before January 3, 2011):
Quantity
2,000
1,000
Resistance Value
Four characters with
the multiplier used as
the decimal holder.
0.1 ohm = R100
1 ohm = 1R00
100 ohm = 100R
SEI Type
WRF
Type
Description
WRF Conformal Coated WW
Code
2
Code
1
2
3
Nominal Resistance
10R
Tolerance
5%
Packaging
A
Tol Values
5% E24
Type
All
All
All
Pkg Qty
1,000
2,000
1,000
Description
Bulk
Tape and Reel
Ammo
Code
A
R
T
Rev Date: 07/27/2012
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
2
www.seielect.com
marketing@seielect.com


Part Number WRF1
Description Conformal Coated Wirewound Resistor
Maker Stackpole
PDF Download

WRF1 Datasheet PDF






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