www.vishay.com For technical questions, contact: ff2aresistors@vishay.com Document Number: 66004
42 Revision: 11-Mar-10
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).
Note
(1) Continuous working voltage shall be or maximum working voltage, whichever is less.
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER RATING MAXIMUM WORKING
VOLTAGE (1)
V
TEMPERATURE
COEFFICIENT
± ppm/°C
TOLERANCE
± %
RESISTANCE
RANGE
Ω
P70 °C
W
P125 °C
W
GSR55 0.125 0.10 200 15, 25, 50 0.05, 0.1, 0.5, 1 10 to 2.5M
GSR57 0.25 0.125 250 15, 25, 50 0.05, 0.1, 0.5, 1 10 to 1M
GSR60 0.25 0.125 250 15, 25, 50 0.05, 0.1, 0.5, 1 10 to 3M
GSR65 0.50 0.25 300 15, 25, 50 0.05, 0.1, 0.5, 1 10 to 10M
GSR70 0.75 0.50 350 15, 25, 50 0.05, 0.1, 0.5, 1 10 to 10M
GSR75 2.0 1.0 750 15, 25, 50 0.05, 0.1, 0.5, 1 10 to 5M
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: GSR55E49R900BMR (preferred part number format)
GLOBAL
MODEL
TEMPERATURE
COEFFICIENT
RESISTANCE
VALUE
TOLERANCE
CODE PACKAGING SPECIAL
(see Standard
Electrical
Specifications
table)
X
= 15 ppm
E
= 25 ppm
H
= 50 ppm
R =
Ω
K = k
Ω
M = M
Ω
10R000
= 10
Ω
49R900
= 49.9
Ω
680K00
= 680 k
Ω
1M0000
= 1.0 M
Ω
A
= ± 0.05 %
B
= ± 0.1 %
D
= ± 0.5 %
F
= ± 1.0 %
MR
= Foil bag (55, 57, 60, 65, 70)
MS
= Foil bag (75 only)
CS
= Reel (55, 57, 60)
CT
= Reel (65, 70, 75)
Blank = Standard
(Dash Number)
(up to 3 digits)
From
1 to 999
as applicable
Historical Part Numbering: GSR55E49R9B (will continue to be accepted)
GSR55 E 49R9 B
HISTORICAL MODEL TEMPERATURE
COEFFICIENT
RESISTANCE
VALUE
TOLERANCE
CODE
P x R
55E4 R909SR 0BMG R
Document Number: 66004 For technical questions, contact: ff2aresistors@vishay.com www.vishay.com
Revision: 11-Mar-10 43
GSR
Metal Film Resistors,
Hermetically-Sealed, Precision, Industrial Vishay Angstrohm
DIMENSIONS in inches (millimeters)
MODEL A
LENGTH
B
DIAMETER
C
CL TO CL
(MAX.)
D
LENGTH
± 0.125 (± 3.18)
E
DIAMETER
± 0.002 (± 0.051)
D
APPROX.
WEIGHT (g)
GSR55 0.280 ± 0.020
(7.11 ± 0.51)
0.110 ± 0.020
(2.79 ± 0.51)
0.379
(9.63)
1.50
(38.10)
0.025
(0.635) 0.337
GSR57 0.310 ± 0.025
(7.87 ± 0.64)
0.150 ± 0.020
(3.81 ± 0.51)
0.467
(11.86)
1.50
(38.10)
0.025
(0.635) 0.405
GSR60 0.425 ± 0.030
(10.80 ± 0.76)
0.150 ± 0.020
(3.81 ± 0.51)
0.530
(13.46)
1.50
(38.10)
0.025
(0.635) 0.450
GSR65 0.640 ± 0.040
(16.26 ± 1.02)
0.240 ± 0.025
(6.10 ± 0.64)
0.780
(19.81)
1.50
(38.10)
0.025
(0.635) 1.300
GSR70 0.640 ± 0.040
(16.26 ± 1.02)
0.240 ± 0.025
(6.10 ± 0.64)
0.780
(19.81)
1.50
(38.10)
0.032
(0.813) 1.440
GSR75 1.062 ± 0.062
(26.98 ± 1.58)
0.250 ± 0.025
(6.35 ± 0.64)
1.186
(30.12)
1.50
(38.10)
0.032
(0.813) 2.500
EC
ADB
POWER DERATING
120
100
80
60
40
20
0
AMBIENT TEMPERATURE °C
25 50 75 100 125 150 175
RA TED POWER IN %
125 °C
MARKING
- Style and size
- Value
- Tolerance and RTC
- Date code
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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therein, which apply to these products.
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