3250 BOURNS | Alldatasheet
Document overview
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Technical content
Features
■ Multiturn / Wirewound / Sealed ■ Listed on the QPL for style RT22 per MIL-R-27208 and RTR22 per High-Rel MIL-R-39015 ■ Panel Mount option available
Electrical Characteristics
(see standard resistance table) (tighter tolerance available) Absolute Minimum Resistance 1,000 megohms min. Dielectric Strength Environmental Characteristics Power Rating @ 85 °C Temperature Coefficient (1 % ∆TR; 0.5 % + resolution ∆VR) (1 % ∆TR; 0.5 % + resolution ∆VR) Load Life (2 % ∆TR; 500 ohms ENR) (2 % ∆TR; 2 % + resolution ∆VR) (3 % ∆TR; 2 % + resolution ∆TR) Physical Characteristics Terminals Flexible leads (7 strands of 30 AWG) Machine Screw Mounting Marking resistance code, terminal numbers, date code, manufacturer’s model number and style Standard Packaging 1 3 GREEN CWCLOCKWISE YELLOW CCW
2 WIPERRED
1.98 (.078) 3250P/RT22/RTR22 Common Dimensions (Pin Styles) 12.7 (.500) TYP. TYP. DIA. THRU (2 PLACES) .89 (.035) TYP. 1.78 (.070)5.59 (.220) TYP. 13.33 ± .64 (.525 ± .025) .71 ± .08 (.028 ± .003) 2.54 (.100) 2.54 (.100) 6.35 (.250) "L" Flex Lead Type RT22 has mounting slots RTR22 has mounting holes 2.36 (.093) 13.21 (.520) 12.70 (.500) 1.40 (.055) 4.75 (.187) .89 (.035) 1.52 (.060) 152.4 (6.00) 2.79 (.110) 3250W/RT22/RTR22 3250W-66/RT22X/RTR22X 3 2.79 (.110) 12.7 (.500) 12.7 (.500) 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 6.35 (.250) 6.35 (.250) 6.35 (.250) DIA. TYP. TYP. TYP. TYP. TYP. TYP. LENGTH MIN. DIA. THRU (2 PLACES) 13.21 (.520) 2.03 ± .38 (.080 ± .015) WIDEX X DEEP DIA. ADJ. SLOT 3.1 (.122) .64 (.024) Standard Resistance Table Popular values listed in boldface. Special resistances available. How To Order
3250 L - 1 - 103 M
-1 = Standard Product Resistance Code Optional Suffix Letter M = Panel Mount (Factory Installed) See “Mil-Spec Numbering System ” for RT22/ RTR22 ordering information. Consult factory for other available options. Nominal Resistance Resistance Resolution (Ohms) Code (Percent) 10 100 1.30 20 200 1.00 50 500 0.80 100 101 0.90 200 201 0.70 500 501 0.60 1,000 102 0.40 2,000 202 0.30 5,000 502 0.25 10,000 103 0.19 20,000 203 0.16 25,000 253 0.14 50,000 503 0.13 SHADED AREAS TYPICALLY NOT STOCKED BY DISTRIBUTORS AND NOT RECOMMENDED FOR NEW DESIGNS. AVAILABLETHROUGH DISTRIBUTION DIMENSIONS ARE: MM (INCHES) TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED *”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO. REV. 02/03