 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| 1240 Vishay Foil Resistors Bulk Metal(R) Foil Technology Precision Trimming Potentiometers, 1/4 Inch Square, RJ26 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 wiper3); 25 ppm/C (see table 2 for low values) RoHS COMPLIANT * Load life stability: 0.1 % typical R, 1.0 % maximum R 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, SS * Power rating: 0.25 W at + 85 C * Resistance range: 5 to 10 k TABLE 1 - MODEL SELECTION* MODEL TERMINATION STYLE W-edge mount, top adjust 1240 Note: * See Figure 1, next page X-edge mount, side adjust P-horizontal mount, side adjust 0.4 0.25 W 21 2 AVERAGE WEIGHT (g) POWER RATING at + 85 C AMBIENT NO. OF TURNS TABLE 2 - 1240 (RJ26) SERIES ELECTRICAL SPECIFICATIONS Temperature Coefficient of Resistance (TCR) 50 to 10K End-to-end2) Temperature Coefficient of Resistance 5, 10 and 20 Through the wiper3) 10 ppm/C maximum (- 55 C to + 150 C, + 25 C ref.) 20 ppm/C 25 ppm/C 0.1 % typical R 1.0 % maximum R (under full rated power of 0.25 W at + 85 C) 0.25 W at + 85 C 0.05 % typical; 0.1 % maximum 0.1 % typical; 0.5 % maximum 3 typical; 10 maximum 0.25 % typical; 1.0 % maximum 1.0 ns without ringing 0.08 H typical 0.5 pF typical - 55 C to + 150 C TABLE 3 - VALUES VS. TOLERANCES STANDARD RESISTANCE VALUES (in ) 5, 10 20, 50, 100, 200, 500, 1K, 2K, 5K, 10K STANDARD TOLERANCE 10 % 5% Stability Load life at 10 000 h TABLE 4 - MECHANICAL SPECIFICATIONS Adjustment Turns Mechanical Stops Internal Terminations Case Material 21 2 Wiper idles - no discontinuity All welded - no flux 1240X - diallyl-phthalate: green (DAP) 1240W - diallyl-phthalate: green (DAP) 1240P - thermoplastic: black Shaft Torque Backlash 3 oz. in. maximum 0.005 % typical Power Rating4) Settability Setting Stability Contact Resistance Variation - CRV (noise)5) Hop-off High-Frequency Operation Rise time Inductance Capacitance Operating Temperature Range Document Number: 63053 Revision: 17-Jun-08 For any questions, contact: foil@vishay.com www.vishay.com 1 1240 Vishay Foil Resistors Bulk Metal(R) Foil Technology Precision Trimming Potentiometers, 1/4 Inch Square, RJ26 Style, Designed to Meet or Exceed the Requirements of MIL-PRF-39035, Char. H FIGURE 1 - SCHEMATIC AND DIMENSIONS in inches (millimeters) 1240X 0.040" (1.02 mm) C 1240W 0.050" (1.27 mm) C 0.040" (1.02 mm) C VISHAY 0.250" (6.35 mm) D VISHAY 1 CW 1 2 3 0.050" (1.27 mm) C 0.050" (1.27 mm) C 0.100" (2.54 mm) A 0.050" (1.27 mm) C 0.100" (2.54 mm) A 0.125" (3.18 mm) C (bottom view) 0.100" (2.54 mm) A 0.010" (0.25 mm) A 0.050" (1.27 mm) C 0.100" (2.54 mm) A 0.250" (6.35 mm) D 2 CW 3 1 3 2 3 2 1 0.250" (6.35 mm) D 0.250" (6.35 mm) D 0.175" (4.45 mm) C 0.175" (4.45 mm) C 0.050" (1.27 mm) C 0.125" (3.18 mm) C (bottom view) 1240P 0.050" (1.27 mm) C VISHAY 0.175" (4.45 mm) C 1 CW 3 TOLERANCES: A = 0.005" (0.13 mm) C = 0.010" (0.25 mm) D = 0.020" (0.51 mm) STANDARD MARKING: Model No. Date Code Resistance Value Tolerance 1 2 3 0.055" (1.40 mm) C 0.035" (0.89 mm) C 0.250" (6.35mm) D 0.016" (0.41 mm) A Resistance Value Tolerance Notes: Adjustment screw 0.080" (2.03 mm) diameter with 0.025" (0.64 mm) X 0.030" (0.76 mm) slot. Tolerance on 0.100" (2.54 mm) A 0.250" (6.35 mm) D 0.125" (3.18 mm) C screw dimensions is 0.005" (0.13 mm). Model 1240 has gold plated terminal pins 0.016" (0.41 mm) 0.001" (0.03 mm) diameter, 0.200" (5.08 mm) length minimum. 0.100" (2.54 mm) A Model No. Date Code FIGURE 2 - POWER DERATING CURVE FIGURE 3 - 1240W 10 k LOAD LIFE, 20 UNITS, 10 000 h at 0.25 W, + 85 C (wiper at CW) + 2000 + 1500 Percent of Rated Power + 100 + 75 + 50 + 25 0 - 75 - 50 - 25 0 + 25 + 50 + 85 C + 1000 R/R (ppm) + 75 + 100 + 125 + 150 + 175 + 500 0 - 500 - 1000 - 1500 - 2000 0 2000 4000 6000 8000 10 000 Ambient Temperature C Time (h) www.vishay.com 2 For any questions, contact: foil@vishay.com Document Number: 63053 Revision: 17-Jun-08 1240 Bulk Metal(R) Foil Technology Precision Trimming Vishay Foil Resistors Potentiometers, 1/4 Inch Square, RJ26 Style, Designed to Meet or Exceed the Requirements of MIL-PRF-39035, Char. H TABLE 5 - COMPARISON MIL-PRF-39035/3 CHARACTERISTIC H6) TEST GROUP I Conditioning Contact resistance variation - CRV (noise) Immersion TEST GROUP I a 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 IV Settability Shock Setting stability Vibration Setting stability Contact resistance variation - CRV (noise) Salt spray 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 TEST GROUP VI Rotational life (200 cycles) Contact resistance variation - CRV (noise) Terminal strength TEST GROUP VII Life (2000 h) at + 85 C Life (10 000 h) at + 85 C TEST GROUP VIII Solvent resistance Notes: 1. Maximum is 1.0 % A.Q.L. standard for all specifications except TCR. (For TCR information, see notes 2 and 3.) 2. Maximum TCR applies to the 3 (sigma) limit or 99.73 % of a production lot. (Measured end-to-end with wiper off the element.) 3. 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. 4. Derated linearly for full power at + 85 C to zero (0) W at + 150 C. See Figure 2 on previous page. 5. Independent of resistance value. 3 W maximum available on special request. 6. All R's are measured to the tolerance specified + 0.01 . 7. Whichever is greater. Special Available Options: Special marking Burn-in and screening operations. 1.0 % 3.0 % or 3 7) No continuous stream of bubbles No failures 10 to 25 turns 2 % or 2 7) Per MIL-STD-202, methods 301 and 105 1000 M 3 oz. in. maximum 1.0 % 1.0 % Per MIL-STD-202, method 208 0.005 % ( 50 ppm/C) 1.0 % 3.0 % or 3 7) 1.0 % 1.0 % 1.0 % 1.0 % 1.0 % 3.0 % or 3 7) No corrosion 1.0 % 1.0 % 2.0 % 1.0 % 3.0 % 2.0 % 3 % or 3 7) No loosening or breakage 2.0 % 3 % or 3 7) 2 lbs. 3.0 % 5.0 % No failures MODEL 1240 MAXIMUM 0.5 % 3 typical, 10 maximum No continuous stream of bubbles No failures 21 2 turns 2 for values 1 k; 5 for values 2 k; Per MIL-STD-202, methods 301 and 105 > 1000 M 3 oz. in. maximum 0.5 % 0.5 % Per MIL-STD-202, method 208 0.001 % ( 10 ppm/C) 0.5 % 3 typical, 10 maximum 0.1 % 0.5 % 0.5 % 0.5 % 0.5 % 3 typical, 10 maximum No corrosion 0.1 % 0.5 % 0.5 % 0.5 % 0.5 % 0.5 % 3 typical, 10 maximum No loosening or breakage 2.0 % 3 typical, 10 maximum 2 lbs. 0.1 % typical, 1.0 % maximum 0.1 % typical, 1.0 % maximum No failures 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 Document Number: 63053 Revision: 17-Jun-08 For any questions, contact: foil@vishay.com www.vishay.com 3 1240 Vishay Foil Resistors Bulk Metal(R) Foil Technology Precision Trimming Potentiometers, 1/4 Inch Square, RJ26 Style, Designed to Meet or Exceed the Requirements of MIL-PRF-39035, Char. H TABLE 6 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y4053500R000J0L (preferred part number format) DENOTES PRECISION Y VALUE R= K = k AER* 0 = standard part, gold termination 1 - 999 = custom Y 4 0 5 3 5 0 0 TOLERANCE J =5% K = 10 % R 0 0 0 J 0 L PRODUCT CODE 4053 = 1240W 5053 = 1240X 0053 = 1240P PACKAGING L = bulk pack FOR EXAMPLE: ABOVE GLOBAL ORDER Y4053 500R000 J 0 L: TYPE: 1240W VALUE: 500.0 ABSOLUTE TOLERANCE: 5.0 % AER: standard part, gold termination PACKAGING: bulk pack HISTORICAL PART NUMBER: 1240W 500R00 J B (will continue to be used) 1240W MODEL 1240W 1240X 1240P Note * Application engineering release: for non-standard requests, please contact application engineering. 500R00 RESISTANCE VALUE 500R00 = 500.0 J TOLERANCE J =5% K = 10 % B PACKAGING B = bulk pack www.vishay.com 4 For any questions, contact: foil@vishay.com Document Number: 63053 Revision: 17-Jun-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 |
Price & Availability of 1240P500R00JKB
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |