GSR
Vishay Angstrohm
Precision Hermetic Metal Film Resistors
Commercial
FEATURES
•
Excellent long term stability
•
Hermetic glass enclosure is impervious to harmful
environments
•
Inert gas filled
•
Low noise
•
Low TCR
GENERAL SPECIFICATIONS
Resistance Range:
10.0
Ω
to 10.0M (see Table 1).
Tolerance:
±
0.05%,
±
0.1%,
±
0.5%, and
±
1.0%.
Temperature Characteristics:
±
15ppm/°C to
±
50 ppm/°C.
Power Ratings:
1/10, 1/8, 1/4, 1/2 and 1 watt - 125°C.
1/8, 1/4, 1/2, 3/4, and 2 watt - 70°C.
Power Derating:
For ambient temperatures above 125°C,
see Power Derating Curve.
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).
TABLE 1 - STANDARD ELECTRICAL SPECIFICATION
POWER RATING
MODEL
GSR55
GSR57
GSR60
GSR65
GSR70
GSR75
125
°
C
1/10
1/8
1/8
1/4
1/2
1
70
°
C
1/8
1/4
1/4
1/2
3/4
2
MAXIMUM
WORKING
VOLTAGE
200
250
250
300
350
750
RESISTANCE RANGE
(Ohms)
Min.
Max.
10.0
10.0
10.0
10.0
10.0
10.0
2.5M
1.0M
3.0M
10.0M
10.0M
5.0M
DIMENSIONS
in inches [millimeters]
E
C
A
D
B
MODEL
GSR55
GSR57
GSR60
GSR65
GSR70
GSR75
A
LENGTH
0.280
±
0.020
[7.11
±
0.51]
0.310
±
0.025
[7.87
±
0.64]
0.425
±
0.030
[10.80
±
0.76]
0.640
±
0.040
[16.26
±
1.02]
0.640
±
0.040
[16.26
±
1.02]
1.062
±
0.062
[26.98
±
1.58]
B
DIAMETER
0.110
±
0.020
[2.79
±
0.51]
0.150
±
0.020
[3.81
±
0.51]
0.150
±
0.020
[3.81
±
0.51]
0.240
±
0.025
[6.10
±
0.64]
0.240
±
0.025
[6.10
±
0.64]
0.250
±
0.025
[6.35
±
0.64]
C
CL TO CL
(MAX.)
0.379
[9.63]
0.467
[11.86]
0.530
[14.25]
0.780
[19.81]
0.780
[19.81]
1.186
[30.12]
D
LENGTH
±
0.125 [
±
3.18]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
E
DIAMETER
±
0.002 [
±
0.051]
0.025
[0.635]
0.025
[0.635]
0.025
[0.635]
0.025
[0.635]
0.032
[0.813]
0.032
[0.813]
D
APPROX.
WEIGHT (grams)
0.337
0.405
0.450
1.300
1.440
2.500
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8
Document Number 66004
Revision 25-Aug-00
GSR
Vishay Angstrohm
POWER DERATING
120
125°C
MARKING
RATED POWER IN %
100
80
60
40
— Style and Size
— Value
— Tolerance and RTC
20
0
25
50
75
100
125
150
AMBIENT TEMPERATURE
°C
175
— Date Code
ORDERING INFORMATION
Example: GSR55E49R9B
GSR
STYLE
55
SIZE
E
RESISTANCE /
TEMPERATURE
CHARACTERISTICS
(RTC)
Code = X
= E
= C
RTC =
±
15 PPM/°C
=
±
25 PPM/°C
=
±
50 PPM/°C
49R9
RESISTANCE
VALUE
B
TOLERANCE
GSR
55
57
60
65
70
The nominal resistance value expressed in
ohms is a four digit number. The first three
digits represent significant figures and the
last digit specifies the number of zeros to
follow.
When the value is less than 100 ohms, the
letter “R” is substituted for one of the
significant figures to represent the decimal
point. The resistance values shall follow
the Standard Resistance-Tolerance
Decade Table (page 11).
Examples:
1.00
Ω
= 1R00
10.0
Ω
= 10R0
100
Ω
= 1000
1000
Ω
= 1001
10,000
Ω
= 1002
100,000
Ω
= 1003
1,000,000
Ω
= 1004
Initial resistance
is identified by a
single letter.
B =
±
0.1%
D =
±
0.5%
F =
±
1.0%
Document Number 66004
Revision 25-Aug-00
www.vishay.com
9
Legal Disclaimer Notice
Vishay
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
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
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
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
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1
