GSR
Vishay Angstrohm
www.vishay.com
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
POWER RATING
MAXIMUM WORKING
TEMPERATURE
COEFFICIENT
ꢀꢀm/°C
RESISTANCE
RANGE
TOLERANCE
MODEL
VOLTAGE (1)
V
P70 °C
P125 °C
W
ꢁ
W
GSR55
GSR57
GSR60
GSR65
GSR70
GSR75
0.125
0.25
0.25
0.50
0.75
2.0
0.10
0.125
0.125
0.25
0.50
1.0
200
250
250
300
350
750
15, 25, 50
15, 25, 50
15, 25, 50
15, 25, 50
15, 25, 50
15, 25, 50
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
10 to 2.5M
10 to 1M
10 to 3M
10 to 10M
10 to 10M
10 to 5M
Note
(1)
Continuous working voltage shall be P x R or maximum working voltage, whichever is less.
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: GSR55E49R900BMR (ꢀreferred ꢀart number format)
G
S
R
5
5
E
4
9
R
9
0
0
B
M
R
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 =
K = k
A = 0.05 ꢀ
B = 0.1 ꢀ
D = 0.5 ꢀ
F = 1.0 ꢀ
MR = Foil bag (55, 57, 60)
MS = Foil bag (65, 70, 75)
CS = Reel (55, 57, 60)
CT = Reel (65, 70, 75)
Blank = Standard
(Dash Number)
(up to 3 digits)
From 1 to 999
as applicable
M = M
10R000 = 10
49R900 = 49.9
680K00 = 680 k
1M0000 = 1.0 M
Historical Part Numbering: GSR55E49R9B (will continue to be acceꢀted)
GSR55
E
49R9
B
TEMPERATURE
COEFFICIENT
RESISTANCE
VALUE
TOLERANCE
CODE
HISTORICAL MODEL
Note
•
For additional information on packaging, refer to the Through-Hole Resistor Packaging document (www.vishay.com/doc?31544).
Revision: 19-Nov-12
Document Number: 66004
1
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