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Número de piezaY00565K000J0L Vishay
Vishay Semiconductors Vishay
componentes DescripciónBulk Metal® Foil Technology Ultra High Precision Trimming Potentiometers 3/4" Rectilinear, ± 5 ppm/°C and ± 15 ppm/°C TCR with a Smooth and Unidirectional Output
Y00565K000J0L Datasheet PDF : 4 Pages
1 2 3 4
Accutrim™ 1280G, 1285G
Vishay Foil Resistors
TABLE 3 - 1280G AND 1285G SERIES MECHANICAL SPECIFICATIONS
Adjustment Turns
26 ± 2 turns
Backlash
< 0.05 %
Stops
clutch, wiper idles
Sealed
+ 85 °C water immersion
Torque
5 oz. in. maximum
Weight
1.5 grams maximum
Construction
Case Material
Lead Screw
Wiper
Rider Block
Element
Lead Material
Valox®
Brass
Precious metal brush
Nylon
Bulk Metal® Foil
Gold plated phosphor bronze
FIGURE 1 - 1280G/1285G SCHEMATIC AND DIMENSIONS in Inches (Millimeters)
0.750" (19.05 mm) C
0.060"
(1.52 mm) A
0.190"
(4.83 mm) B
0.010"
(0.25 mm) A
1
0.050"
(1.27 mm) A
0.039" (0.99 mm) A
0.020" (0.51 mm) A
2
3
0.110"
(2.79 mm) A
0.190"
(4.83 mm) B
0.200"
(5.08 mm) B
0.200"
(5.08 mm) A
0.125"
0.500" (12.70 mm) A (3.18 mm) B
0.270"
(6.86 mm) B
0.030"
(0.76 mm) A
0.010"
(0.25 mm) A
0.100"
(2.54 mm) B
TOLERANCES:
A = ± 0.005" (0.13 mm)
B = ± 0.010" (0.25 mm)
C = ± 0.015" (0.38 mm)
FIGURE 2 - POWER DERATING CURVE
+ 100
- 55 °C
0.030"
(0.76 mm) A
+ 25 °C
1
3
CW
2
+ 75
+ 50
+ 25
www.foilresistors.com
2
0
- 75 - 50 - 25
0
+ 25 + 50 + 75 + 100 + 125 + 150
Ambient Temperature (°C)
For any questions, contact: foil@vishaypg.com
Document Number: 63056
Revision: 25-Mar-10
Direct download click here
 

INTRODUCTION
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.

FEATURES
• Temperature coefficient of resistance (TCR): (- 55 °C to + 125 °C ref. at + 25 °C)
   - ± 15 ppm/°C (model 1280G);
   - ± 5 ppm/°C (model 1285G)3);
   - through the wiper ± 50 ppm/°C
• A smooth and unidirectional resistance with leadscrew adjustment
• Load life stability: 0.5 % maximum ΔR under full rated power at + 25 °C for 2000 h
• Electrostatic discharge (ESD) up to 25 000 V
• Settability: 0.05 % typical; 0.1 % maximum
• Setting stability: 0.1 % typical; 0.5 % maximum, ΔSS
• Power rating: 0.75 W at + 25 °C
• Resistance range: 10 Ω to 20 kΩ
• Resistance tolerance: ± 10 %, ± 5 %
• Backlash: < 0.05 %
• Tap test: 0.05 % typical; 0.1 % maximum
• “O”-ring prevents ingress of fluids during any board cleaning operation
• Terminal finish: gold plated (tin/lead finish available on request)

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