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GSR Datasheet, PDF (1/3 Pages) Vishay Siliconix – Metal Film Resistors, Hermetically-Sealed, Precision, Industrial
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GSR
Vishay Angstrohm
Metal Film Resistors,
Hermetically-Sealed, Precision, Industrial
FEATURES
• Hermetic glass enclosure is impervious to harmful
environments
• Inert gas filled
• Low noise (- 40 dB)
• Low TCR (down to 15 ppm/°C)
MECHANICAL SPECIFICATIONS
Termination: Vishay Angstrohm GSR resistors use gold-
plated nickel leads, which are both solderable and weldable
(hot solder dip is available as an option).
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER RATING
P70 °C
W
P125 °C
W
MAXIMUM WORKING
VOLTAGE (1)
V
GSR55
0.125
0.10
200
GSR57
0.25
0.125
250
GSR60
0.25
0.125
250
GSR65
0.50
0.25
300
GSR70
0.75
0.50
350
GSR75
2.0
1.0
750
TEMPERATURE
COEFFICIENT
± ppm/°C
15, 25, 50
15, 25, 50
15, 25, 50
15, 25, 50
15, 25, 50
15, 25, 50
Note
(1) Continuous working voltage shall be P x R or maximum working voltage, whichever is less.
TOLERANCE
±%
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
RESISTANCE
RANGE

10 to 2.5M
10 to 1M
10 to 3M
10 to 10M
10 to 10M
10 to 5M
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: GSR55E49R900BMR (preferred part number format)
GSR 5 5 E 4 9 R 9 0 0 BMR
GLOBAL
MODEL
(see Standard
Electrical
Specifications
table)
TEMPERATURE
COEFFICIENT
X = 15 ppm
E = 25 ppm
H = 50 ppm
RESISTANCE
VALUE
R=
K = k
M = M
10R000 = 10 
49R900 = 49.9 
680K00 = 680 k
1M0000 = 1.0 M
TOLERANCE
CODE
A = ± 0.05 %
B = ± 0.1 %
D = ± 0.5 %
F = ± 1.0 %
Historical Part Numbering: GSR55E49R9B (will continue to be accepted)
PACKAGING
MR = Foil bag (55, 57, 60)
MS = Foil bag (65, 70, 75)
CS = Reel (55, 57, 60)
CT = Reel (65, 70, 75)
SPECIAL
Blank = Standard
(Dash Number)
(up to 3 digits)
From 1 to 999
as applicable
GSR55
E
49R9
B
HISTORICAL MODEL
TEMPERATURE
COEFFICIENT
RESISTANCE
VALUE
TOLERANCE
CODE
Note
• For additional information on packaging, refer to the Through-Hole Resistor Packaging document (www.vishay.com/doc?31544).
Revision: 19-Nov-12
1
Document Number: 66004
For technical questions, contact: fff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000