1260 Vishay Foil Resistors Bulk Metal® Foil Technology Precision Trimming Potentiometers, 3/8 Inch Square, RJ24 Style, Designed to Meet or Exceed the Requirements of MIL-PRF-39035, Char. H FEATURES • Temperature coefficient of resistance (TCR): ± 10 ppm/°C (- 55 °C to + 150 °C ref. at + 25 °C);through the wiper2); ± 25 ppm/°C (see table 2 for low values) • Load life stability: 0.1 % typical ΔR, 1.0 % maximum ΔR under full rated power at + 85 °C for 10 000 h • Settability: 0.05 % typical; 0.1 % maximum • Setting stability: 0.1 % typical; 0.5 % maximum • Power rating: 0.25 W at + 85 °C • Resistance range: 5 Ω to 10 kΩ • Resistance tolerance: ± 5 %, ± 10 % • “O” ring prevents ingress of fluids during any board cleaning operation • Terminal finishes available: tin/lead TABLE 1 - MODEL SELECTION* MODEL TERMINATION STYLE W-edge mount, top adjust 1260 X-edge mount, side adjust AVERAGE WEIGHT (g) POWER RATING at + 85 °C AMBIENT NO. OF TURNS 0.4 0.25 W 21 ± 2 Note: * See figure 1 TABLE 2 - 1260 (RJ26) SERIES ELECTRICAL SPECIFICATIONS Temperature Coefficient of Resistance (TCR) 50 Ω to 10 kΩ End-to-end1) ± 10 ppm/°C maximum (- 55 °C to + 150 °C, + 25 °C ref.) Temperature Coefficient of Resistance 5, 10 and 20 Ω ± 20 ppm/°C Through the wiper2) Stability Load life at 10 000 h Power Rating3) TABLE 3 - VALUES VS. TOLERANCES STANDARD RESISTANCE VALUES (in Ω) STANDARD TOLERANCE 5, 10 ± 10 % 20, 50, 100, 200, 500, 1K, 2K, 5K, 10K ±5% ± 25 ppm/°C 0.1 % typical ΔR 1.0 % maximum ΔR (under Full Rated Power of 0.25 W at + 85 °C) TABLE 4 - MECHANICAL SPECIFICATIONS 0.25 W at + 85 °C Adjustment Turns 21 ± 2 Mechanical Stops Wiper idles - no discontinuity Settability 0.05 % typical; 0.1 % maximum Setting Stability 0.1 % typical; 0.5 % maximum Contact Resistance Variation - CRV (noise) 3 Ω typical; 10 Ω maximum Internal Terminations All welded - no flux Hop-off 0.25 % typical; 1.0 % maximum Case Material Diallyl-phthalate: black (DAP) High-Frequency Operation Rise/decay time Inductance Capacitance 1 ns without ringing 0.08 µH typical 0.5 pF typical Shaft Torque 3 oz. in. maximum Operating Temperature Range - 55 °C to + 150 °C Backlash 0.005 % typical Document Number: 63054 Revision: 29-Feb-08 For any questions, contact: [email protected] www.vishay.com 1 1260 Vishay Foil Resistors Bulk Metal® Foil Technology Precision Trimming Potentiometers, 3/8 Inch Square, RJ24 Style, Designed to Meet or Exceed the Requirements of MIL-PRF-39035, Char. H FIGURE 1 - SCHEMATIC AND DIMENSIONS in inches (millimeters) 1260W 0.081 ± 0.010" (2.06 ± 0.25 mm) 0.080" (2.03 mm) maximum VISHAY 0.420" (10.67 mm) maximum 2 0.015" (0.38 mm) minimum CW 0.300" (7.62 mm) minimum 3 1 3 pins 0.024 ± 0.006" (0.61 ± 0.15 mm) diameter STANDARD MARKING Model No. 0.090 ± 0.005" (2.29 ± 0.13 mm) diameter ± 0.010" (± 0.25 mm) C Tolerance 0.375 ± 0.015" (9.53 ± 0.38 mm) 0.187 ± 0.020" (4.75 ± 0.51 mm) Notes: Adjustment screw 0.090" (2.29 mm) diameter with 0.020" (0.51 mm) x 0.031" (0.79 mm) slot. model 1260 has solder plated copper terminal pins. 0.024" (0.61 mm) diameter, 0.300" (7.62 mm) length minimum. 0.080" (2.03 mm) maximum 0.081 ± 0.010" (2.06 ± 0.25 mm) VISHAY 0.420" (10.67 mm) maximum 2 CW 0.015" (0.38 mm) minimum Resistance Value 0.075 ± 0.010" (1.91 ± 0.25 mm) 0.100 ± 0.005" (2.54 ± 0.13 mm) 1260X Date Code 0.170 ± 0.025" (4.32 ± 0.64 mm) 0.300" (7.62 mm) minimum 1 3 3 PINS 0.024 ± 0.006" (0.61 ± 0.15 mm) diameter 0.075 ± 0.010" (1.91 ± 0.25 mm) 0.170 ± 0.025" (4.32 ± 0.64 mm) ± 0.010" (± 0.25 mm) C 0.090 ± 0.005" (2.29 ± 0.13 mm) DIA 0.100 ± 0.005" (2.54 ± 0.13 mm) 0.375 ± 0.015" (9.53 ± 0.38 mm) 0.187 ± 0.020" (4.75 ± 0.51 mm) Percent of Rated Power FIGURE 2 - POWER DERATING CURVE + 85 °C + 100 + 75 + 50 + 25 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 Ambient Temperature °C www.vishay.com 2 For any questions, contact: [email protected] Document Number: 63054 Revision: 29-Feb-08 1260 Bulk Metal® Foil Technology Precision Trimming Vishay Foil Resistors Potentiometers, 3/8 Inch Square, RJ24 Style, Designed to Meet or Exceed the Requirements of MIL-PRF-39035, Char. H TABLE 5 - COMPARISON MIL-PRF-39035/3 CHARACTERISTIC H4) 1260 MAXIMUM ± 1.0 % ± 3.0 % or 3 Ω5) No continuous stream of bubbles ± 0.5 % 3 Ω typical, 10 Ω maximum No continuous stream of bubbles No failures 10 to 25 turns 2 % or 2 Ω5) Per MIL-STD-202, methods 301 and 105 No failures 21 ± 2 turns 2 Ω for values ≤ 1 kΩ; 5 Ω for values ≥ 2 kΩ; Per MIL-STD-202, methods 301 and 105 ≥ 1000 MΩ 3 oz. in. maximum ± 1.0 % ± 1.0 % > 1000 MΩ 3 oz. in. maximum ± 0.5 % ± 0.5 % Per MIL-STD-202, method 208 Per MIL-STD-202, method 208 ± 0.005 % (± 50 ppm/°C) ± 1.0 % 3.0 % or 3 Ω5) ± 0.001 % (± 10 ppm/°C) ± 0.5 % 3 Ω typical, 10 Ω maximum TEST GROUP IV Settability Shock Setting stability Vibration Setting stability Contact resistance variation - CRV (noise) Salt spray ± 1.0 % ± 1.0 % ± 1.0 % ± 1.0 % ± 1.0 % 3.0 % or 3 Ω5) No corrosion ± 0.1 % ± 0.5 % ± 0.5 % ± 0.5 % ± 0.5 % 3 Ω typical, 10 Ω maximum No corrosion TEST GROUP V Solder heat Low-temperature operation Setting stability Low-temperature storage High-temperature exposure Setting stability Contact resistance variation - CRV (noise) Integrity of shaft ± 1.0 % ± 1.0 % ± 2.0 % ± 1.0 % ± 3.0 % ± 2.0 % 3.0 % or 3 Ω5) No loosening or breakage ± 0.1 % ± 0.5 % ± 0.5 % ± 0.5 % ± 0.5 % ± 0.5 % 3 Ω typical, 10 Ω maximum No loosening or breakage TEST GROUP VI Rotational life (200 cycles) Contact resistance variation - CRV (noise) Terminal strength ± 2.0 % 3.0 % or 3 Ω5) 2 lbs. ± 2.0 % 3 Ω typical, 10 Ω maximum 2 lbs. ± 3.0 % ± 5.0 % ± 0.1 % typical, ± 1.0 % maximum ± 0.1 % typical, ± 1.0 % maximum No failures No failures TEST GROUP I Conditioning Contact resistance variation - CRV (noise) Immersion TEST GROUP Ia Visual and mechanical Actual effective electrical travel End resistance Dielectric withstanding voltage - DWV (Atmospheric and barometric pressure) Insulation resistance Shaft torque Thermal shock Setting stability TEST GROUP II Solderability TEST GROUP III Resistance temperature characteristic - TCR Moisture resistance Contact resistance variation - CRV (noise) TEST GROUP VII Life (2000 h) at + 85 °C Life (10 000 h) at + 85 °C TEST GROUP VIII Solvent resistance Notes: 1. Maximum TCR applies to the 3 s (sigma) limit or 99.73 % of a production lot. (Measured end-to-end with wiper off the element.) 2. Measurements of TCR through the wiper are influenced more by setting stability and the percentage of the total resistance in use (at the wiper) than by fundamental resistance change due to temperature alone. The parameter shown in table 2 is a 2 s distribution typifying the behavior of the device when used with 40 % or more of the total resistance in use. 3. Derated linearly for full power at + 85 °C to zero (0) W at + 150 °C. See figure 2. 4. All ΔR’s are measured to the tolerance specified + 0.01 Ω. 5. Whichever is greater. Special available options: Special marking Power conditioning and screening operations. Document Number: 63054 Revision: 29-Feb-08 VISHAY TRIMMERS ARE INSPECTED 100 % for: • Short-time overload (6.25 x rated power for 5 s on; and for 30 s off - 3 cycles) • Immersion • Resistance tolerance check • End resistance • Visual-mechanical • Dynamic tests for continuity, CRV By sample for: • TCR • DWV For any questions, contact: [email protected] www.vishay.com 3 1260 Vishay Foil Resistors Bulk Metal® Foil Technology Precision Trimming Potentiometers, 3/8 Inch Square, RJ24 Style, Designed to Meet or Exceed the Requirements of MIL-PRF-39035, Char. H TABLE 6 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y0069500R000J0L (preferred part number format) DENOTES PRECISION VALUE Y R=Ω K = kΩ Y 0 0 6 9 5 0 0 AER* 0 = standard part, tin/lead termination 1 - 999 = custom R 0 0 0 J 0 L PRODUCT CODE TOLERANCE PACKAGING 0069 = 1260W 4069 = 1260X J=±5% K = ± 10 % M = ± 20 % L = bulk pack FOR EXAMPLE: ABOVE GLOBAL ORDER Y0069 500R000 J 0 L: TYPE: 1260W VALUE: 500.0 Ω ABSOLUTE TOLERANCE: ± 5.0 % AER: standard part, tin/lead termination PACKAGING: bulk pack HISTORICAL PART NUMBER: 1260W 500R00 J B (will continue to be used) 1260W 500R00 J B MODEL RESISTANCE VALUE TOLERANCE 1260W 1260X 500R00 = 500.00 Ω J =±5% K = ± 10 % M = ± 20 % PACKAGING B = bulk pack Note * Application engineering release: for non-standard requests, please contact application engineering. www.vishay.com 4 For any questions, contact: [email protected] Document Number: 63054 Revision: 29-Feb-08 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1