Accutrim™ 1202 Styles
Vishay Foil Resistors
Bulk Metal® Foil Ultra High Technology Precision Trimming Potentiometers,
1 1/4" Rectilinear, RJ12 Style, Designed to Meet or Exceed The Requirements
of MIL-PRF-22097, Char. F with Smooth and Unidirectional Output
FEATURES
Temperature coefficient of resistance (TCR):
±
10 ppm/°C maximum (3)
(- 55 °C to + 150 °C ref. at + 25 °C);
through the wiper (4)
;
±
25 ppm/°C
A smooth and unidirectional resistance with
leadscrew adjustment
Load life stability: 0.1 % typical R, 0.5 % maximum R
under full rated power at + 85 °C** for 2000 h
Settability: 0.05 % typical; 0.1 % maximum
Setting stability: 0.1 % typical; 0.5 % maximum, SS
Power rating: 0.5 W at + 85 °C
INTRODUCTION
Resistance range: 2 to 20 k
Vishay Foil precision trimmers have the Bulk Metal® Foil
resistive element which possesses a unique inherent
temperature and load life stability. Plus, their advanced
virtually back lash-free adjustment mechanism makes them
easy to set quickly and accurately and keeps the setting
exactly on target.
“O“-ring prevents ingress of fluids during any board
cleaning operation
Electrostatic discharge (ESD) up to 25 000 V
Terminal finish: gold plated (tin/lead finish is available on
request; see notes at figures 1 and 2)
®
BULK METAL
WIREWOUND
CERMET
FOIL
Wiper Travel
Wiper Travel
Wiper Travel
TABLE 3 - 1202 (RJ12) SERIES
ELECTRICAL SPECIFICATIONS
TABLE 1 - MODEL SELECTION
POWER
AVERAGE
WEIGHT
(g)
TERMINATION
STYLE
RATING
at + 85 °C TURNS
AMBIENT
NO. OF
Temperature Coefficient of Resistance (TCR), 50 and up:
End-to-end (3): ± 10 ppm/°C (- 55 °C to + 150 °C, ref. + 25 °C)
2 , 5 , 10 , 20 ± 20 ppm/°C (- 55 °C to + 150 °C,
ref. + 25 °C)
MODEL
P-In line PC pins
Y-staggered PC pins (1)
L-flexible wire leads
LB-flexible wire leads
with bushings
(panel mounted)
2.5
2.5
3.3
Through the wiper (4): ± 25 ppm/°C (- 55 °C to + 150 °C,
ref. + 25 °C)
1202
0.5 W
25 ± 2
Stability:
Load life at 2000 h, under full rated power of 0.5 W at + 85 °C;
0.1 % typical R; 0.5 % maximum R
5.1
Load life at 10 000 h, under full rated power of 0.5 W at + 85 °C;
0.1 % typical R; 1.0 % maximum R
Note
• See Figures 1 and 2
Power Rating (5): 0.5 W at + 85 °C
Settability: 0.05 % typical; 0.1 % maximum
Setting Stability: 0.1 % typical; 0.5 % maximum
TABLE 2 - VALUES VS. TOLERANCES
Contact Resistance variation - CRV (noise):
3 typical; 10 maximum
STANDARD RESISTANCE
STANDARD TOLERANCES
VALUES (in )
Hop-off: 0.25 % typical; 1.0 % maximum
High-Frequency Operation to 100 MHz:
Rise time: 10 ns at 1 k
2, 5, 10(2)
± 10 %, ± 20 %
Inductance: 0.08 µH typical
Capacitance: 0.5 pF typical
Operating Temperature Range: - 55 °C to + 150 °C
20, 50, 100, 200, 250, 500,
5 %, 10 %
1K, 2K, 5K, 10K, 20K
Note
• Refer to page 4 for footnotes
* Pb containing terminations are not RoHS compliant, exemptions may apply
** See a definition of typical in the VPG glossary at the link http://www.vishaypg.com/foil-resistors/faq/glossary/
Document Number: 63055
Revision: 11-Jun-13
For any questions, contact: foil@vishaypg.com
www.vishayfoilresistors.com
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