ROP
Vishay Sfernice
Power Metal Oxide Film Resistors
FEATURES
• 2W and 4W at 25°C
• NF C 83-210
• Good overload performance
• High reliability level
• Small size
The “ROP” resistors combine low price with outstanding
performance and are therefore suitable for both professional
and general purpose applications. These power metal oxide
film resistors can favorably be used as a substitute for general
purpose cemented or lacquered wirewound resistors, in
medium and high ohmic values ranges.
• High electrical insulation
• Resistance to cleaning solvents
• Excellent climatic performances
• Good mechanical strength
DIMENSIONS
in millimeters
25 min.
A max.
25 min.
±
0.02
ØC
Ø B max.
Ø1.2
DIMEN-
SIONS
SERIES
ROP2
A
14.7
25.2
ØB
4.9
6.9
ØC
0.8 ± 0.1
0.8 ± 0.1
UNIT WEIGHT
IN g
1.2
3
45° chamfer
max. 0.25 mm deep
ROP4
4
4
A max. + 8 mm
TECHNICAL SPECIFICATIONS
VISHAY SFERNICE SERIES
CCTU 04-06A NF C/UTE 83-210
Power Rating 25°C
Critical Resistance
Resistance Value Range
and Resistance Tolerance
Maximum Voltage
Maximum Operating Temperature
± 5% E24
ROP2
RCP12
2W
out of nominal ohmic range
1Ω to 56kΩ
350V
235°C
ROP4
RCP13
4W
out of nominal ohmic range
4.7Ω to 100kΩ
500V
+ 235°C
Document Number: 52013
Revision 30-Aug-02
For technical questions, contact sfer@vishay.com
www.vishay.com
43
ROP
Vishay Sfernice
PERFORMANCE
NF C 83-210 - CECC 40 201
TESTS
Short Time Overload
Thermal Shock
Climatic Sequence
Load Life
Damp Heat Humidity (Steady State)
Load Life at max. Category Temperature
Climatic Sequence
200°C
CONDITIONS
10 Pn during 5 s
or 40 V/mn
load at Pr followed by cold
temp. exposure 15 min. at – 55°C
10 cycles
cycle 90’/30’
1000 h at Pr at 25°C
56 days
with low load
21% of Pn
REQUIREMENTS
NF C 83-210
≤
± (1% + 0.05 )
–
≤
± (3% + 0.1 )
≤
± (3% + 0.1 )
± (3% + 0.1 )
± (3% + 0.1 )
± 3%
or 0.05
TYPICAL VALUES
AND DRIFTS
± 0.2%
or 0.05Ω
± 0.2%
or 0.05Ω
± 0.3%
or 0.05Ω
± 1%
or 0.05Ω
± 0.3%
or 0.05Ω
–
± 3%
or 0.05Ω
Power Metal Oxide Film Resistors
– 55°C
+ 200°C
severity 1-5 cycles
POWER RATING CHART
(NF C)
TEMPERATURE RISE
250
100
HOT SPOT TEMPERATURE IN °C
200
P
RO
2
P
RO
4
% RATED POWER
150
50
100
50
21
0
0
0
25 40
70
100
120
140 160 180 200
235
0
1
2
3
4
RATED POWER IN WATT
AMBIENT TEMPERATURE IN DEGREES CELSIUS
ORDERING INFORMATION
ROP
SERIES
2
STYLE
SPECIAL
DESIGN
Method N°
Optional
18kΩ
OHMIC VALUE
± 5%
TOLERANCE
PACKAGING
Optional
www.vishay.com
44
For technical questions, contact sfer@vishay.com
Document Number: 52013
Revision 30-Aug-02
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
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