www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 50011
47 Revision: 11-Jun-08
BSI
Vishay Sfernice
Molded and Insulated Wirewound Power
Resistors Axial Leads
FEATURES
•1 W to 10 W
•Excellent stability = typical drift ± 1 % after 2000 h
•High power = up to 10 W (25 °C)
•Low ohmic values = 0.01 Ω available
•Electrical insulation
•Climatic protection
DIMENSIONS in millimeters
RoHS
COMPLIANT
25 min. 25 min.
A
Ø B
Ø E
L max.
44
45° chamfer
max. 0.25 deep
Ø 1.2 ± 0.02
INSULATED
25 min. 25 min.
A
Ø B
Ø C
MOLDED
DIMENSIONS in millimeters
PROTECTION MOLDED
Style
Dim. 58 BSI 63 BSI 68 BSI
A6.5 ± 0.2 10 ± 0.2 15 ± 0.5
Ø B 2.4 ± 0.1 3.7 ± 0.1 5.6 ± 0.2
Ø C ± 0.1 0.6 0.8
Weight in g 0.3 0.45 1.3
PROTECTION INSULATED
Style
Dim. 516 BSI 523 BSI 923 BSI 932 BSI 947 BSI
A17 ± 2 24 ± 2 26 ± 2 34 ± 3 51 ± 3
Ø B 5 ± 1 5 ± 1 9 ± 1 9 ± 1 9 ± 1
Ø C ± 0.1 0.8
Weight in g 1.6 2.5 6 7.5 10
TECHNICAL SPECIFICATIONS
VISHAY SFERNICE MODEL AND STYLE 58 BSI 63 BSI 68 BSI 516 BSI 523 BSI 923 BSI 932 BSI 947 BSI
Power Rating at + 25 °C 1 W 2 W 3 W 4 W 5 W 6 W 8 W 10 W
Ohmic Range 0.1 Ω
2 kΩ
0.025 Ω
4 kΩ
0.01 Ω
15 kΩ
0.01 Ω
20 kΩ
0.015 Ω
40 kΩ
0.02 Ω
60 kΩ
0.035 Ω
100 kΩ
0.06 Ω
150 kΩ
Ohmic Range
in Relation to
Temperature
Coefficient
± 100 ppm/°C ± 0.5 %
± 5 %
0.1 Ω
2 kΩ
0.1 Ω
4 kΩ
0.1 Ω
15 kΩ
0.1 Ω
20 kΩ
0.1 Ω
40 kΩ
0.1 Ω
60 kΩ
0.1 Ω
100 kΩ
0.1 Ω
150 kΩ
± 300 ppm/°C ± 1 %
± 5 % -0.025 Ω
< 0.1 Ω
0.01 Ω
< 0.1 Ω
0.01 Ω
< 0.1 Ω
0.015 Ω
< 0.1 Ω
0.02 Ω
< 0.1 Ω
0.035 Ω
< 0.1 Ω
0.06 Ω
< 0.1 Ω
Limiting Element Voltage 50 V 120 V 200 V 200 V 250 V 300 V 500 V 750 V
Document Number: 50011 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 11-Jun-08 48
BSI
Molded and Insulated Wirewound Power
Resistors Axial Leads Vishay Sfernice
POWER RATING CHARTTEMPERATURE RISE
MARKING
GEKA trademark, model, style, nominal resistance (in Ω), tolerance (in %), manufacturing date.
Because of lack of space, small styles are marked with ohmic value (in Ω), and tolerance (in %) only.
PERFORMANCE
TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES
AND DRIFTS
Dielectric Strength
IEC60115-1
1000 VRMS for 923...947
500 VRMS for 58...523
± (0.1 % + 0.05 Ω) ± (0.1 % + 0.05 Ω)
Short Time Overload
IEC60115-1
5 Pn/5 s for Pr < 5 W
10 Pn/5 s for Pr ≥ 5 W
± (0.2 % + 0.05 Ω) ± (0.1 % + 0.05 Ω)
Endurance IEC60115-1
90’/30’ Pr at 25 °C, 2000 h ± (1 % + 0.05 Ω) ± (1 % + 0.05 Ω)
Endurance at High Temperature 250 h at 275 °C ± (0.5 % + 0.05 Ω) ± (0.3 % + 0.05 Ω)
Thermal Shock
Load at 100 % Pr followed
by cold temp. exposure
at - 55 °C
± (0.2 % + 0.05 Ω) ± (0.1 % + 0.05 Ω)
Climatic Sequence
IEC60115-1
- 55 °C/+ 200 °C
5 cycles
± (0.5 % + 0.05 Ω)
insulation resistance ≥ 100 MΩ
± (0.3 % + 0.05 Ω)
insulation resistance > 10 GΩ
Damp Heat, Steady State IEC60115-1/IEC 60068-2-78
56 days, 40 °C, 93 % RH
± (0.5 % + 0.05 Ω)
insulation resistance ≥ 100 MΩ
± (0.3 % + 0.05 Ω)
insulation resistance > 10 GΩ
Moisture Resistance MIL-STD-202
Method 106
± (0.2 % + 0.05 Ω)
insulation resistance > 100 MΩ
± (13 % + 0.05 Ω)
insulation resistance > 10 GΩ
Shock MIL-STD-202
100 g Method 205 - Test C ± (0.1 % + 0.05 Ω) ± (0.05 % + 0.05 Ω)
Vibration
MIL-STD-202
Method 204 - Test D: 20 g
10/2000 Hz
± (0.1 % + 0.05 Ω) ± (0.05 % + 0.05 Ω)
MECHANICAL SPECIFICATIONS
Mechanical Protection Molded or painted (insulated)
Resistive Element CuNi or CrNi
Substrate Alumina
Connections Sn/Ag/Cu 99/0.3/0.7
ENVIRONMENTAL SPECIFICATIONS
Temperature Range - 55 °C to + 275 °C
Climatic Category 55/200/56
ORDERING INFORMATION
BSI 63 U22 2 % ± 100 ppm/°C TR300 e1
MODEL STYLE OHMIC VALUE TOLERANCE TEMPERATURE
COEFFICIENT
PACKING LEAD (Pb)-FREE
0 50 100 150 200 250 275 300 350
% RATED POWER
125
100
75
50
37
25
0
AMBIENT TEMPERATURE IN °C
58 63 68 516 523 923 932 947
RATED POWER IN W
HOT SPOT TEMPERATURE IN °C
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0
50
100
150
200
250
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 50011
49 Revision: 11-Jun-08
BSI
Vishay Sfernice Molded and Insulated Wirewound Power
Resistors Axial Leads
GLOBAL PART NUMBER INFORMATION
GLOBAL
MODEL SIZE OHMIC VALUE TOLERANCE PACKAGING SPECIAL
BSI 058
063
068
516
523
923
932
947
The firts digits are significant
figures and the last digit
specifies the number of
zeros to follow.
R designates decimal point.
2R870 = 2.87 Ω
1R200 = 1.2 Ω
10020 = 10 000 Ω
R3300 = 0.33 Ω
...
D = 0.5 %
F = 1 %
G = 2 %
J = 5 %
Size 058, 063:
R22 = Reel
3000 pieces
R17 = Reel
1250 pieces
A22 = AM
1000 pieces ...
Size 516, 523,
923, 932:
A15 = AM
250 pieces
B19 = Bulk
30 pieces
Other packaging
existing
As applicable
Ex = AD7
0632R87 F 2S IB 0R2
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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All product specifications and data are subject to change without notice.
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