W23-22KJI

Vitreous Enamelled Vitreous Enamelled Wirewound Resistors Wirewound Resistors Welwyn Components W20 Series W20 Series Features approved • IECQ-CECC CECC approved Suitable for harsh environments Suitable for harsh environments • Impervious lead free vitreous enamel coating Impervious lead free ideal vitreous enamel coating • Overload characteristics for protection circuits Overload characteristics • High stability and reliability ideal for protection circuits High power dissipation for size • High stability and reliability • High power dissipation for size All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3) Electrical Data Commercial Power rating at 25° C Resistance range at 1% tolerance 2% tolerance 5% tolerance TCR (-55° to 200° C) watts ohms ohms ohms ppm/ ° C W21 W22 3.0 70 1R to 10K 1R to 22K 0R5 to 10K 0R5 to 22K 0R1 to 10K 0R1 to 22K Typically: 1G ohm > 1G ohm Voltage Proof volts not specified 500 min 500 min Pulse handling data available by request Data available at: https://www.ttelectronics.com/TTElectronics/media/ProductFiles/Resistors/ApplicationNotes/Wirewound-Pulse-Overload-Resistors.pdf Packaging For W21 the standard method of packaging is taped in Ammo Packs. For W22 the standard method of packaging is taped and reeled. W23’s and W24’s are available only as loose packed in boxes. 10 f1 6 Application Notes f2 f1 – f 2 b 1.4 mm Type b W21 63±2 W22 73±2 6 The termination should not be bent closer than 1.6mm from the body, and the recommended minimum bend radius is 1.2mm. The terminations are solderable to within 4mm from the body. When cold, vitreous enamel has excellent insulation resistance. In common with all insulants the specific resistance of the enamel decreases with increase in temperature. Therefore, resistors operated at near maximum temperature cannot be classed as insulated and should not be used in contact with any conducting material. Care must be taken when determining clearance distance between the resistor body and the printed circuit board or other components to ensure these are not over heated. Resistance is measured 6mm from body. 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. BI Technologies IRC Welwyn www.ttelectronics.com/resistors © TT Electronics plc 01.22 Vitreous Enamelled Vitreous Enamelled Wirewound Resistors Wirewound Resistors Welwyn Components W20 Series W20 Series Ordering Procedure Example: W22 at 3.3 kilohms and±5%, 5% Pb-free) tolerance on a reel of 700 pieces – Example: W22-3K3JI (W22, 3.3 kilohms W 2 2 - 3 1 Type K 3 2 4 W22–3K3JI 1 2 3 4 Value Tolerance Packing & Termination Finish W21 E24 = 3/4 characters W23J W24 5% K = kilohms F = ±1% G = ±2% J = ±5% I = Standard packing & Pb-free 1000/box W21 W22 700/reel W23, W24 50/box Tolerance (use IEC62 code) W22 R = ohms 1% 2% I 3 Type Value (use IEC62 code) F G J For CECC released product follow the MPN with text indicating the relevant release and style. Packing (Note that released this additional text does not form part 1000/box ofnumber our MPN.) Example: W22-3K3JI IECQ-CECC40201-002 Ammo W215 For CECC productW21, state on order the CECC and style. Example: W22-3K3JI CECC40201-002 KB KB I Tape Bulk W22 W23, W24 700/reel 50/box Standard For CECC released product state on order the CECC number and style. Example: W22-3K3JI CECC40201-002 KB For SnPb finish instead of Pb-free replace the packing suffix with PB. Example: W22-3K3JPB General Note BI Technologies IRC Welwyn 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. Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com © Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK 86 07.11 www.ttelectronics.com/resistors © TT Electronics plc 01.22