ETQ-PAF4R8HFA Panasonic

Choke Coils Japan Power Choke Coil Singapore Series: PCC-F179F (S1) Thin, light and high power type made possible by our original unique winding and core shape technology Suitable for large current demands of PC servers n Features n Recommended Applications l High power type (Saturation currents up to 42.3 A) l PC(Server) DC/DC converters for driving CPU at high Its low loss is due to our low resistive technology speed l Thin (9.0 mm height), Light weight (9.9 g) l Thin type on-board power supply module for converters l Low leakage flux (30 to 80 W) l RoHS Compliant Also suitable as a smoothing choke coil n Explanation of Part Numbers 1 2 3 4 56 78 9 10 11 12 E T QPF Product code Classification Size Winding Inductance Core Packaging Suffix n Examples Saturation Initial Inductance Heat reference DC resistance current inductance at flat point current at 20 C at 25 C at 25 C at 25 C at 100 C DT=40 K Parts No. Type I sat I sat DCR Tol. Tol. (A) (A) (mW) L0 (H) L1 (H) I 0 (A) (%) (%) min. min. max. ETQPAF1R2HF1 2.9 1.2 21.4 18.0 22.6 1.00 ETQPAF2R7HF1 4.6 2.7 15.5 12.5 17.5 1.56 HL ETQPAF4R8HF1 6.8 4.8 30 10.6 9.0 14.4 2.29 30 ETQPAF7R2HF1 9.7 7.2 8.6 7.3 12.0 3.31 ETQPAF0R7EF1 1.9 0.7 50.4 42.3 22.6 1.00 EX ETQPAF1R3EF1 2.9 25 1.3 25 35.2 28.5 17.7 1.56 Notes: Inductance is measured at 100 kHz See Figure 1 for the following: 1) For the definition of L & L , please refer to the next page. 0 1 2) Saturation current ( I sat) is the current value that inductance (L1) decreases to 80% of initial value 3) Case heating current is the value of the current at which the temperature of the coil case rises 40 degrees Celsius above its initial temperature with T(ambient)=25C Rev.02/04 Design, Specifications are subject to change without notice. Ask factory for technical specifications before purchase and/or use. Whenever a doubt about safety arises from this product, please inform us immediately for technical consultation without fail.Choke Coils n Figure 1: L0,L1:Definition DC Bias Characteristic L0 100% 80% L1 L0 : (Initial Inductance) Inductance when Idc is zero L1 : (Inductance at flat point) Point where the measured inductance is 80% of its initial value 0 0 Idc (A) n Figure 2: Dimensions in mm(not to scale) 17.20.3 Date code MARKING ( ) : Reference value 0.7 min. 2.7 min. 0.05 min.:Clearance between the Terminal surface and the case surface 0.3 min.:Clearnce between 1.50.2 (14.2) 1.50.2 the Terminal surface 2.00.2 and the surface of the molded resin case Design, Specifications are subject to change without notice. Ask factory for technical specifications before purchase and/or use. Whenever a doubt about safety arises from this product, please inform us immediately for technical consultation without fail. L (mH) 9.40.2 16.80.4 6.50.1 9.0 max. 9.60.2 (6.0)