WG73 wide terminal type pulse power flat chip resistors (anti surge) EU features Superior to WK73 series in pulse withstanding voltage Suitable for both flow and reflow solderings This products meet EU RoHS requirements AEC-Q200 Qualified dimensions and construction L c c Type Dimensions inches (mm) (Inch Size Code) L Wc d t +.004 +.004 2B .063 -.008 .126 -.012 .012.008 .018.006 .024.004 W +0.1 +0.1 (0612) (0.30.2) (0.450.15) (0.60.1) ) ) (1.6-0.2 (3.2-0.3 Ceramic Substrate 2H .098.006 .197.006 .016.008 .030.006 .024.004 Sn Plating (2.50.15) (5.00.15) (1020) (0.40.2) (0.750.15) (0.60.1) t Ni Plating +.008 .122 -.004 d Inner 3A .248.006 .018.008 .030.006 .024.004 Protective Resistive Electrode +0.2 (1225) (6.30.15) (0.450.2) (0.750.15) (0.60.1) Coating Film ) (3.1-0.1 Derating Curve 100 100 80 80 60 60 40 40 20 20 0 0 -60 -40 -200420060 80 100 120 140 160 -60 -40 -200420060 80 100 120 140 160 -55 70 155 -55 125 155 Ambient Temperature Terminal Part Temperature (C) (C) For resistors operated at an ambient temperature For resistors operated terminal temperature of described for each size or of 70C or above, a power rating shall be derated above, a power rating shall be derated in accordance with the derating curve. in accordance with the above derating curve. Please refer to Introduction of the derating curve based on the terminal part temperature in the beginning of our catalog before use. ordering information WG73 2H T TE 101 K Power Termination Nominal Resistance Type Packaging Rating Surface Material Resistance Tolerance 2B: 1W T : Sn TD: 4mm pitch punch paper 3 digits K: 10% NEW 2H: 1.5W TE: 4mm pitch embossed plastic M:20% 3A: 2W For further information on packaging, please refer to Appendix A Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/29/19 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 35 % Rated Power % Rated Power resistorsresistors WG73 wide terminal type pulse power flat chip resistors (anti surge) applications and ratings Rated Rated Resistance Range ( ) Maximum Maximum Operating Part Power Terminal T.C.R. Ambient Working Overload Temperature -6 Designation Rating Part (X 10 /K) K10% M20% Temperature Voltage Voltage Range Temperature E-12 E-12 -55C WG732B 1.0W 70C 125C 100 560m ~ 1k 560m ~ 1k 200V 400V to +155C -55C WG732H NEW 1.5W 70C 125C 100 560m ~ 1k 560m ~ 1k 200V 400V to +155C -55C WG733A 2.0W 70C 125C 100 560m ~ 1k 560m ~ 1k 200V 400V to +155C Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower If any questions arise whether to use the Rated Ambient Temperature or the Rated Terminal Part Temperature in your usage conditions, please give priority to the Rated Terminal Part Temperature. Prior to use and for more details, please refer to the Introduction of the derating curves based on the terminal part temperature in the beginning of our catalog. environmental applications Temperature Rise One-Pulse Limiting Electric Power WG73 2B-3A WG73 2B-3A 100000 180 3A 160 2H 10000 140 2H 3A 120 Measurement condition 2B 1000 100 Room temperature: 25C 2B PCB: FR-4t = 1.6mm 80 Cu foil thickness: 35m 100 60 Hot spot 40 WG733A Terminal 20 10 WG732H WG732B 0 10 20 30540060 70 80 90 100 1 .001 .01 .1 1 10 100 1000 Power Rating (%) Pulse Duration (ms) Regarding the temperature rise, the value of the temperature varies per conditions and board for use since the temperature is measured under our measuring conditions. Performance Characteristics Requirement R (%+0.005 ) Parameter Limit Typical Test Method Within specified Resistance 25C tolerance Within specified T.C.R. +25C/-55C and +25C/+125C T.C.R. Overload (Short time) 2% 0.2% Rated voltage (DC) x 2.5 for 5 seconds Resistance to Solder Heat 1% 0.2% 260C 5C, 10 seconds 1 second Bending Test 1% 0.1% Holding point 90mm, Bending 1 time, Bending 5mm Rapid Change of Temperature 0.5% 0.3% -55C (30 minutes), +125C (30 minutes), 100 cycles Moisture Resistance 2% 0.2% 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Endurance at 70C 2% 0.2% 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 1% 0.2% +155C, 1000 hours High Temperature Exposure Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 3/10/20 36 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com Temperature Rise (C) One-Pulse Limiting Electric Power