Semi-Precision Power Resistors Semi-Precision Power Wirewound Resistor Wirewound Resistor Semi-Precision Power WelwynMake Components Possible Welwyn Components AS Series Wirewound Resistor * 0.25 to 10 watts AS Series * Tolerance down to 0.5% * 0.25 to 10 watts (N)AS Series * 0.1 ohm to 175K ohms * Tolerance down to 0.5% 0.25 to*10 watts Resistance wire TCR 20 ppm/C * 0.1 ohm to 175K ohms Tolerance down to 0.5% * Resistance wireohms TCR 20 ppm/C 0.1 ohm to 175K Resistance wire TCR 20 ppm/C Non inductive (NAS) option Pb-free option is RoHS compliant All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2) Electrical Data Equivalent Power Rating Commercial Range Non-Inductive Range Available Resistance (watts) (ohms) (ohms) (ohms) Type Style 125C 25C Min. Max. Min. Max. 0.5%, 1% 3%, 5% Equivalent Power Rating Commercial Range Non-Inductive Range Available Resistance 1/4 (N)AS0R1-1K0 60R 0R2 1K0 1 0R1 RW81 0.25 1R0-1K0 MIL-R-26 (watts) (ohms) (ohms) (ohms) 1/2 (N)AS60R 0R5 6K0Min. 1 Min. 0R1 0.525C Style 125C Max. Max. 0.5%, 1% 1R0-6K0 3%, 5% 0R1-6K0 (N)AS-1 3K8 0R2 7K5 2 0R1 1 1R0-7K5 RW70U 0R1-1K0 0R1-7K5 60R 0R2 1K0 1 0R1 RW81 0.25 1R0-1K0 (N)AS-1C 1K0 10R 2K0 2 R05 1 1R0-2K0 0R1-6K0 R05-2K0 60R 0R5 6K0 1 0R1 0.5 1R0-6K0 MIL-R-26 Electrical Data Type (N)AS-1/4 (N)AS-1/2 (N)AS-2 RW70U (N)AS-1C (N)AS-2B RW79U (N)AS-2 (N)AS-2C (N)AS-3 (N)AS-2B (N)AS-1 (N)AS-2C (N)AS-5 (N)AS-3 (N)AS-7 (N)AS-10 RW74U (N)AS-5 RW79U1 1 2 3 RW74U2 3 RW78U5 7 (N)AS-7 Physical Data (N)AS-10 RW78U 10 2 2 3 2 3 0R1 4 R05 0R17K5 0R12K0 20K0R2 24K10R R253K8 0R11K0 10K 1R0-7K5 12K 1R0-2K0 1R0-20K 0R1-7K5 1R0-24K R05-2K0 0R1-20K 2 3 3 4 3 0R1 5 0R1 0R120K 0R124K 18KR25 30K0R1 0R210K 0R112K 7K5 1R0-20K 15K 1R0-24K 1R0-18K 0R1-20K 1R0-30K 0R1-24K 0R1-18K 5 3 7 5 7 0R1 9 0R1 0R118K 0R130K 60K0R2 90K0R1 0R17K5 0R215K 30K 1R0-18K 45K 1R0-30K 1R0-60K 0R1-18K 1R0-90K 0R1-30K 0R1-60K 10 7 14 0R1 0R160K 175K 0R1 0R230K 50K 0R1-60K 1R0-60K 1R0-175K 9 0R1 90K 0R2 45K 1R0-90K 0R1-90K 14 0R1 175K 0R2 50K 1R0-175K 0R1-175K 0R1-24K 0R1-30K 0R1-90K 0R1-175K Dimensions Inches (mm) Physical Type Data A 0.032 (0.81) 1/4 (N)AS0.250(6.4) Dimensions Inches (mm) 1/2 (N)AS0.312(7.9) Type B (max) A 0.032 (0.81) B (max) C (max) 0.094 (2.4) 0.312 (7.9) D (nom) E (min) 0.020 (0.5) 1.50 (38.1) 0.094 (2.4) 0.375 (min) 1.50 (38.1) D (9.5) (nom) 0.020E (0.5) C (max) (N)AS-1 0.020 (0.5) 0.429 (10.9) 0.125 (3.2) 0.367(9.3) 0.094 (2.4) 0.312 (7.9) 0.020 (0.5) 1.50 (38.1) 1.50 (38.1) 0.250(6.4) (N)AS-1C 1 (0.64) (7.7) (2.9) 0.256(6.5) (N)AS- /2 1.50 (38.1) 1.50 (38.1) 0.020 (0.5)0.025 0.375 (9.5) 0.303 0.094 (2.4) 0.115 0.312(7.9) (N)AS-2 0.032 (0.8) 0.600 (15.2) 0.250 (6.3) 0.480(12.2) (N)AS-1 0.125 (3.2) 0.429 (10.9) 0.020 (0.5) 1.50 (38.1) 1.50 (38.1) 0.367(9.3) (N)AS-2B (16.6) (5.6) (N)AS-1C 1.50(0.8) (38.1) 1.30 (33.0) 0.025 (0.64) 0.032 0.303 (7.7)0.663 0.115 (2.9) 0.219 0.256(6.5) 0.540(13.7) (N)AS- 1/4 (N)AS-2C (15.1) 1.50(0.8) (38.1) 1.30D(33.0) 0.032 (0.8) 0.032 0.600(4.0) (15.2)0.594 0.250 (6.3) 0.157 0.480(12.2)0.489(11.0) (20.6) (N)AS-2B (N)AS-3 1.30(1.0) (33.0) 1.50 (38.1) 0.032 (0.8) 0.040 0.663(7.2) (16.6)0.812 0.219 (5.6) 0.282 0.540(13.7)0.687(17.5) (24.9) (N)AS-2C (N)AS-5 1.30(1.0) (33.0) 1.50 (38.1) 0.032 (0.8) 0.040 0.594(8.8) (15.1)0.980 0.157 (4.0) 0.344 0.489(11.0)0.875(22.2) E D E A B A (N)AS-2 (N)AS-3 (N)AS-5 C B C (N)AS-7 (35.0) 1.50(1.0) (38.1) 1.50 (38.1) 0.040 (1.0) 0.040 0.812(8.8) (20.6)1.375 0.282 (7.2) 0.344 0.687(17.5)1.250(31.8) (N)AS-10 0.040 (1.0) 1.937 (49.2) 0.385 (9.8) 1.812(46.0) 0.344 (8.8) 0.980 (24.9) 0.040 (1.0) 1.50 (38.1) 1.50 (38.1) 0.875(22.2) (N)AS-7 1.250(31.8) 0.344 (8.8) 1.375 (35.0) 0.040 (1.0) 1.50 (38.1) (N)AS-10 1.812(46.0) 0.385 (9.8) 1.937 (49.2) 0.040 (1.0) 1.50 (38.1) General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn's own data and is considered accurate at time of going to print. GeneralNote Note General (c) Welwyn Limited Northumberland 7AA, UK Welwyn Components reservesComponents the right to make changes *inBedlington, product specification withoutNE22 notice or liability. TT Electronics reserves the right to in product specification without notice or liability. +44 (0)make 1670changes 822181 Facsimile: +44 (0)accurate 1670 829465 info@welwyn-tt.com * Website: www.welwyn-tt.com All informationTelephone: is subject to Welwyn's own data *and is considered at time* Email: of going to print. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. (c) Welwyn Components Limited * Bedlington, Northumberland NE22 7AA, UK (c) TT Electronics Telephone: +44 (0) plc 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com A subsidiary of TT electronics plc A subsidiary ofIssue D * 03.06 TT electronics plc www.ttelectronicsresistors.com Issue D * 03.06 02.16 91 9 Semi-Precision Power Wirewound Resistor Make Possible Semi-Precision Power Semi-Precision Power (N)AS Series Wirewound Resistor Wirewound Resistor AS Series AS Series Performance Welwyn Components Welwyn Components Data Power Derating Power Derating 150 150 AS-1/4, 1/2, 1, 1C AS-1/4, 1/2, 1, 1C AS-3, 2 AS-3, 2 AS-2C AS-2C AS-5, 10 125 125 AS-2B AS-2B 100 100 250 Spot Temperature HotHot Spot Temperature (C) (C) 175 175 275 275 250 AS-5, 10 AS-7 AS-7 75 75 0 025 25 75 75 125 175 125 175(C) Ambient Temperature Ambient Temperature (C) 225 225 275 275 Temperature Rise @ 125C Temperature Rise @ 125C Spot Temperature HotHot Spot Temperature ( (C) C) 275 275 250 250 AS-7, 10 AS-7, 10 AS-3, AS-5 AS-3, AS-5 AS-2C AS-2C AS-1,2 AS-1,2 AS-2B AS-2B 200 200 AS-1C AS-1C AS-1/2 AS-1/2 AS-1/4 AS-1/4 150 150 125 1250 0 200 200 150 150 AS-7, 10 AS-7, 10 AS-1,2 AS-1,2 AS-3, AS-5 AS-3, AS-5 AS-1/2 AS-1/2 100 100 50 50 25 25 0 0 AS-1C AS-1C AS-2B AS-2B AS-2C AS-2C AS-1/4 AS-1/4 40 80 120 40 Percent of 8025C Power120 Rating Percent of 25C Power Rating 160 160 200 200 Selected Pulse-Handling Capability @ 125C Selected Pulse-Handling Capability @ 125C Energy (watts-second) Energy (watts-second) Percent of 125C Power Rating Percent of 125C Power Rating 200 200 Temperature Rise @ 25C Temperature Rise @ 25C 14 14 12 12 10 10 8 8 200 200 AS-2B AS-2B 6 6 AS-2C AS-2C 4 4 2 2 40 80 120 160 40Percent of80 120 Rating 160 125 C Power Percent of 125 C Power Rating AS-3 AS-3 AS-2 AS-2 0 00.1 0.1 AS-1/2 AS-1/2 AS-1/4 AS-1 AS-1 AS-1/4 0.2 0.2 Environmental Testing Testing at 25C Environmental Environmental Testing at 25C 0.5 1 2 0.5Resistance 1 (ohms) 2 Resistance (ohms) Test Condition Test Condition Load Life 1000 hours Max R Max 1.0%R Load LifeResistance 1000 hours Moisture Moisture Resistance Temperature Cycle 1.0% 1.0% 1.0% 0.5% Temperature Cycle Short Time Overload Short Time Overload Low Temperature Operation 0.5% 0.5% 0.5% 0.5% Low Temperature Operation Solder Heat Solder Heat Shock 0.5% 0.25% 0.25% 0.5% Shock Vibration Vibration 0.5% 0.5% 0.5% 5 5 10 10 General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. www.ttelectronicsresistors.com (c) TT Electronics plc (c) Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com 02.16 Issue D * 03.06 Semi-Precision Power Wirewound Resistor Make Possible (N)AS Series Ordering Procedure Ordering Procedure This product has two valid part numbers: European (Welwyn) Part Number: AS3-27KFI (AS3, 27 kilohms 1%, Pb-free) A 1 S 3 - 2 7 2 K 3 F I 4 5 1 2 3 4 5 Winding Type Value Tolerance Termination & Packing Omit for standard N = noninductive I = Pb-free, Standard packing bulk* AS1/4, AS1/2 E24 = 3/4 D = 0.5% F = 1% AS1/4, 1/2, 1, 1C, 2, characters AS1, AS1C 1000/box R = ohms AS2, AS2B H = 3% 2B, 2C, 3, 5 K = kilohms AS2C, AS3 500/box J = 5% AS7, 10 AS5, AS7, AS10 * Tape and reel available on request USA (IRC) Part Number: AS32702FLF (AS3, 27 kilohms 1%, Pb-free) A 1 S 3 2 2 7 0 2 F 3 4 L F 5 1 2 3 4 Winding Type Value Tolerance Omit for standard N = noninductive 3 digits + AS1/4, AS1/2 multiplier AS1, AS1C AS2, AS2B R = ohms for AS2C, AS3 values <100 AS5, AS7, AS10 ohms D = 0.5% F = 1% H = 3% J = 5% 5 Termination & Packing LF=Pb-free, Omit for SnPb Standard packing bulk* AS1/4, 1/2, 1, 1C, 2, 2B 1000/box 2C, 3, 5 AS7, 10 500/box * Tape and reel available on request General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. www.ttelectronicsresistors.com (c) TT Electronics plc 02.16 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TT Electronics: AS1/2400RF AS1/2600RJ AS1015R0J AS1039K0J AS10R500F AS11R00J AS12500F AS1R200F AS21R00FTR AS23320F AS23321F AS28251FTR AS2B100JLF957 AS2B10K0J AS2B1200F AS2B12R0JTR AS2B1R00F AS2B36R5FTR AS2B3R30J AS2B4750FTR AS2B5R00FTR AS2BR200F AS2BR500F AS2BR500FTR AS2C3010FTR AS2C3301JTR AS2R220J AS2R220JTR AS315R0J AS31K50J AS510R0F AS510R0JLF AS510R0JLF-965 AS51500JTR AS52701JTR AS52R00JLF AS54220F AS55601J AS5R100J AS71600FTR NAS51600F AS-1/4-1R00-2% AS520R0FLF AS550R0JLF AS53900JLF AS2R500FLFTR AS1/2400RFLF AS1CR835F AS1CR835F-TAG AS53902JLF AS21002J AS22R40F AS21000J AS1/26R80J AS55601JLF AS125R0BLF AS1/21141F AS1CR050JTR AS52000JTR AS745R0J AS2BR430F AS2B36R5FLFTR AS1CR050HLF AS1C1201FLFTR NAS11R00JLFTR AS34K30JLF AS527R0JLF AS1/42R20JLF AS58R00JLF970 AS2B2R00F AS342R2FLF936 AS2B8R20FTR AS2B3R48F AS25100FLF AS21001FLF AS520R0F AS24R12FLF