Y00592K00000K0L

Accutrim™ 1280G, 1285G Vishay Foil Resistors Bulk 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 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 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. • 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 BULK METAL FOIL • Resistance range: 10 Ω to 20 kΩ Resistance Resistance • Power rating: 0.75 W at + 25 °C WIREWOUND Wiper Travel • Resistance tolerance: ± 10 %, ± 5 % • Backlash: < 0.05 % • Tap test: 0.05 % typical; 0.1 % maximum Wiper Travel • “O”-ring prevents ingress of fluids during any board cleaning operation Resistance • Terminal finish: gold plated (tin/lead finish available on request) CERMET Wiper Travel TABLE 1 - 1280G AND 1285G SERIES ELECTRICAL SPECIFICATIONS Resistance Tolerance Model 1280G 10 % (1), Model 1285G 5 % Resistance Range 10 Ω to 20 kΩ TCR Model 1280G ± 15 ppm/°C (- 55 °C to + 125 °C, ref. + 25 °C) TCR Model 1285G (3) ± 5 ppm/°C (- 55 °C to + 125 °C, ref. + 25 °C) Power 0.75 W at + 25 °C derated linearly to 0 W at + 125 °C (see Fig. 2) Settability 0.05 % typical; 0.1 % maximum Setting Stability 0.1 % typical; 0.5 % maximum Roll-on, Roll-off 0.25 % typical; 1.0 % maximum Load Life Stability 0.5 % ΔR after 2000 h under full rated power at + 25 °C End Resistance 2 Ω maximum C.R.V. (noise) (2) 3 Ω typical; 10 Ω maximum Frequency Characteristics 10 ns rise time at 1 kΩ to 100 MHz Notes (1) 5 % available on special order (2) The 1280G can be screened for low noise, if required (3) For model 1285G 10 Ω and 20 Ω TCR is ± 10 ppm/°C (4) Panel mount available on special order TABLE 2 - STANDARD VALUE 10 Ω, 20 Ω, 50 Ω, 100 Ω, 200 Ω, 500 Ω, 1 kΩ, 2 kΩ, 5 kΩ, 10 kΩ, 20 kΩ Document Number: 63056 Revision: 25-Mar-10 For any questions, contact: foil@vishaypg.com www.foilresistors.com 1 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) 0.060" (1.52 mm) A 0.750" (19.05 mm) C 0.190" (4.83 mm) B 0.110" (2.79 mm) A 0.190" (4.83 mm) B 0.010" (0.25 mm) A 1 2 0.030" (0.76 mm) A 0.270" (6.86 mm) B 3 0.200" (5.08 mm) B 0.050" (1.27 mm) A 0.039" (0.99 mm) A 0.010" (0.25 mm) A 0.200" (5.08 mm) A 0.020" (0.51 mm) A 0.100" (2.54 mm) B 0.125" (3.18 mm) B 0.500" (12.70 mm) A 1 3 CW 2 0.030" (0.76 mm) A TOLERANCES: A = ± 0.005" (0.13 mm) B = ± 0.010" (0.25 mm) C = ± 0.015" (0.38 mm) FIGURE 2 - POWER DERATING CURVE + 25 °C Percent of Rated Power - 55 °C + 100 + 75 + 50 + 25 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 Ambient Temperature (°C) www.foilresistors.com 2 For any questions, contact: foil@vishaypg.com Document Number: 63056 Revision: 25-Mar-10 Accutrim™ 1280G, 1285G Vishay Foil Resistors TABLE 4 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y0056100R000K0L (preferred part number format) DENOTES PRECISION VALUE CHARACTERISTICS (1) Y R=Ω K = kΩ 0 = gold plated termination (lead (Pb)-free) 1 to 999 = custom Y 0 0 5 6 1 0 0 R 0 0 0 K 0 PRODUCT CODE RESISTANCE TOLERANCE PACKAGING 0056 = 1280G 0059 = 1285G J = ± 5.0 % K = ± 10.0 % L = foam/box pack L FOR EXAMPLE: ABOVE GLOBAL ORDER Y0056 100R000 K 0 L: TYPE: 1280G VALUES: 100.0 Ω ABSOLUTE TOLERANCE: ± 10 % TERMINATION: gold plated (lead (Pb)-free) PACKAGING: foam/box pack HISTORICAL PART NUMBER: 1280G 100R K (will continue to be used) 1280G 100R K MODEL VALUE TOLERANCE 1280G 1285G 100R = 100 Ω J = ± 5.0 % K = ± 10.0 % Note (1) For non-standard requests or additional values, please contact application engineering. Document Number: 63056 Revision: 25-Mar-10 For any questions, contact: foil@vishaypg.com www.foilresistors.com 3 Legal Disclaimer Notice Vishay Precision Group, Inc. Disclaimer ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE. Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but not limited to, the warranty expressed therein. VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase. 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