Resettable Ptc Products Page 70 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Radial Leaded > USBR Series Dimension EIA Mark IEC Mark Dimensions Dim. (mm) Tol. (mm) Carrier tape width W 18 -0.5 / +1.0 Hold down tape width W 4 W 0 11 min. Top distance between tape edges W 6 W 2 3 max. Sprocket hole position W 5 W 1 9 -0.5 / +0.75 Sprocket hole diameter* D 0 D 0 4 -/+ 0.32 Abscissa to plane(straight lead) H 18.5 -/+ 3.0 Abscissa to plane(kinked lead) H 0 H 0 16 -/+ 0.5 Abscissa to top H 1 H 1 32.2 max. Overall width w/o lead protrusion C 1 42.5 max. Overall width w/ lead protrusion C 2 43.2 max. Lead protrusion L 1 l 1 1.0 max. Protrusion of cut out L 11 max. Protrusion beyond hold-down tape l 2 l 2 Not specified Sprocket hole pitch P 0 P 0 12.7 -/+ 0.35 Pitch tolerance 20 consecutive -/+ 1 Device pitch 12.7 Tape thickness t 0.9 max. Tape thickness with splice t 1 2.0 max. Splice sprocket hole alignment 0 -/+ 0.3 Body lateral deviation h 0 -/+ 1.0 Body tape plane deviation p 0 -/+ 1.3 Ordinate to adjacent component lead* P 1 P 1 3.81 -/+ 1.0 Lead spacing* F 5.08 -/+ 0.8 *Differs from EIA specification. Tape and Ammo Specifications Devices taped using EIA468-B/IE286-2 standards. See table below and Figure 1 for details. Tape and Ammo Diagram A B A 1 L 1 P 0 D 0 F L W 4 H 0 I 2 H 1 W 5 W Reference plane h H 1 H C 1 C 2 h p Direction of unreeling Cross section A - B t Figure 1

Previous Page
Next Page