www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 50009
41 Revision: 01-Oct-07
RLP
Vishay Sfernice
Insulated Precision Wirewound Resistors
Axial Leads
In wirewound precision resistors, the RLP series holds a
leading position in professional applications whenever an
excellent stability of the ohmic value and a correspondingly
low temperature coefficient are required at the same time.
The RLP model resistors comply with the most stringent
requirements of the EN 140-100 specification. The series
consists of 5 models covering the power range from 1 W to
10 W.
Non-inductive versions can be supplied on request by
specifying RLP-NI. For higher power dissipations, the use of
RH series resistors is recommended.
FEATURES
•1 W to 10 W at 25 °C
•CECC 40201-006
•Conforms to EN 140-100
•Excellent stability < ± 0.3 % after 1000 h
•High power up to 10 W at 25 °C
•Low ohmic values 10 mΩ available
•Low temperature coefficient ≤ ± 50 ppm/°C
•Electrical insulation
•Climatic protection
•Termination = Pure matte tin or Sn/Ag/Cu according to the
ohmic value
DIMENSIONS in millimeters
Undergoes European Quality Insurance System (CECC)
RoHS
COMPLIANT
25 min. 25 min.
A
Ø B
Ø E
L max.
4 4
45
° chamfer
max. 0.25 deep
Ø a ± 0.02
RLP1 - RLP2 a = 1 mm
RLP3 - 6 - 10 a = 1.2 mm
INSULATED
25 min. 25 min.
A
Ø B
Ø E
RLP 1 - RLP 2
MOLDED
DIMENSIONS in millimeters
MOLDED INSULATED
SERIES
AND STYLE RLP 1 RLP 2 RLP 3 RLP 6 RLP 10
A max. 7 10.2 14 23.82 46.78
Ø B
max.
R > 0.15 Ω2.5 4.0 5.54 8.71 10.32
R ≤ 0.15 Ω-6 9 11 180K
E ± 0.1 0.6 0.6 0.8 0.8 0.8
Weight in g 0.27 0.48 1.3 3.4 8.6
TECHNICAL SPECIFICATIONS
VISHAY SFERNICE SERIES AND STYLE RLP1 RLP2 RLP3 RLP6 RLP10
NF C 83-210 RP8 RP7 RP4 - -
CECC 40201-006 ABC - -
Power Rating
at + 25 °C
VISHAY SFERNICE
Limits 1 W2 W3 W6 W10 W
Ohmic Range
in Relation
to Tolerance
± 5 % E24 0.05 Ω
2 kΩ
0.025 Ω
6.8 kΩ
0.01 Ω
15 kΩ
0.02 Ω
59 kΩ
0.06 Ω
150 kΩ
± 2 % E48 0.05 Ω
2 kΩ
0.025 Ω
6.8 kΩ
0.03 Ω
15 kΩ
0.02 Ω
59 kΩ
0.06 Ω
150 kΩ
± 1 % E96 0.05 Ω
2 kΩ
0.025 Ω
6.8 kΩ
0.03 Ω
15 kΩ
0.02 Ω
59 kΩ
0.06 Ω
150 kΩ
± 0.5 % E96 0.4 Ω
2 kΩ
0.4 Ω
6.8 kΩ
0.0499 Ω
15 kΩ
0.3 Ω
59 kΩ
0.3 Ω
150 kΩ
± 0.1 % E96 Please consult VISHAY SFERNICE
Qualified Ohmic Range
NF C 83-210
1 Ω
470 Ω
0.2 Ω
1.78 kΩ
0.1 Ω
3.57 kΩ
0.1 Ω
12.1 kΩ
0.1 Ω
40.2 kΩ
Limiting Element Voltage 50 V 120 V 200 V 300 V 720 V
Critical Resistance out of nominal ohmic range 17 800 Ω51 100 Ω
Document Number: 50009 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 01-Oct-07 42
RLP
Insulated Precision Wirewound Resistors
Axial Leads Vishay Sfernice
STABILITY AND POWER RATING
Stability changes slightly according to power rating and ambient temperature. This fact is especially important for users needing
a life drift lower than the initial resistance tolerance. Typical drifts, after 2000 hours life test made under the 90’/30’ conditions and
at an ambient temperature of 25 °C, are:
INDUCTANCE (Example)
PERFORMANCE
TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES
AND DRIFTS
MIL-R-26 E CECC40201-06
Dielectric w/s Voltage 500 VRMS for RLP 1-2-3
1000 VRMS for RLP 6-10 ± (0.1 % + 0.05 Ω) - ± (0.05 % + 0.05 Ω)
Short Time Overload 5 Pn/5 s for Pn < 5 W
10 Pn/5 s for Pn ≥ 5 W ± (0.2 % + 0.05 Ω) ± 0.25 % + 0.05 Ω± (0.1 % + 0.05 Ω)
Climatic Sequence
EN 140-201
fasc. 19A - 55 °C/+ 200 °C
5 cycles
-± 0.5 % + 0.05 Ω
Insulation R > 100 MΩ
± (0.2 % + 0.05 Ω)
Ins. resistance > 103 MΩ
Humidity (Steady State) EN 140-201
fasc. 3A 56 days 95 % R.H. -± 0.5 % + 0.05 Ω
Insulation R > 100 MΩ
± (0.25 % + 0.05 Ω)
Ins. resistance > 103 MΩ
Vibration
MIL-STD-202
Method 204 - Test D: 20 g
10/2000 Hz
± (0.1 % + 0.05 Ω) ± 0.25 % + 0.05 Ω± (0.05 % + 0.05 Ω)
Load Life MIL-STD-202
Method 108 Pn 1000 h ± (0.5 % + 0.05 Ω)± 0.5 % + 0.05 Ω
Insulation R ≥ 1 GΩ± (0.3 % + 0.05 Ω)
Moisture Resistance MIL-STD-202
Method 106
± (0.2 % + 0.05 Ω)
Insulation resistance
> 100 MΩ
-± (1 % + 0.05 Ω)
Ins. resistance > 103 MΩ
High Temperature 250 h at + 275 °C ± (0.5 % + 0.05 Ω)± 0.5 % + 0.05 Ω
Insulation R ≥ 1 GΩ± (0.25 % + 0.05 Ω)
Shock MIL-STD-202
100 g Method 205 - Test C ± (0.1% + 0.05 Ω) ± 0.25 % + 0.05 Ω± (0.05 % + 0.05 Ω)
TEMPERATURE COEFFICIENT IN THE RANGE - 55 °C TO + 200 °C
OHMIC RANGE LIMITS TYPICAL VALUE
NF C MIL
< 1 Ω± 100 ppm/°C ± 90 ppm/°C ± 50 ppm/°C
1 Ω to < 10 Ω ± 50 ppm/°C ± 50 ppm/°C
≥ 10 Ω ± 25 ppm/°C ± 30 ppm/°C + 0 to - 20 ppm°C
OHMIC RANGE RLP1 RLP2 RLP3 RLP6 RLP10 ΔR %
R %
Pn 1 W 2 W 3 W 5 W 10 W 0.3
0.5 Pn 0.5 W 1 W 1.5 W 2.5 W 5 W 0.15
FREQUENCY IN MHz
H
µ N I E C N A T C U D N I
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1 1 10
0 0 1 3 P
L R Ω
RLP3 NI 100 Ω
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 50009
43 Revision: 01-Oct-07
RLP
Vishay Sfernice Insulated Precision Wirewound Resistors
Axial Leads
POWER RATING CHART
TEMPERATURE RISE
MARKING
SFERNICE trademark, series, style, CECC style (if applicable) nominal resistance (in Ω, kΩ), tolerance (in %), manufacturing
date.
AMBIENT TEMPERATURE IN °C
% RATED POWER
125
100
75
50
37
25
0
0 50 100 150 200 250 275 300 350
RATED POWER IN W
HOT SPOT TEMPERATURE IN °C
250
200
150
100
50
0
0 1.5 3.0 4.5 6.0 7.5 10.0
2
P L R
1
P L R
3 P
L R
6
P L
R
0
1
P L
R
ORDERING INFORMATION
RLP 1 XXX 5U5 ± 5 % TR100 e1 (e3: RLP1 < 1R
RLP2 < 3R52)
MODEL STYLE NON INDUCTIVE
WINDING
Optional
(NI)
SPECIAL
DESIGN
Method N°
Optional
OHMIC VALUE
Custom items
are subject to
extra-charge
and min. order.
Please see price
list.
TOLERANCE PACKAGING
Optional
LEAD (Pb)-FREE
SAP PART NUMBERING GUIDELINES
RLP 01 5R500 J R15
MODEL STYLE OHMIC VALUE TOLERANCE PACKAGING
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
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
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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
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