Resettable Ptc Products Page 82 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Radial Leaded > 30R 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 / +0.2 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: 30R090-30R185 H 1 H 1 32.2 max. Abscissa to top: 30R250-30R900 45.0 max. Overall width w/o lead protrusion: 30R090-30R185 C 1 42.5 max. Overall width w/o lead protrusion: 30R250-30R900 56 max. Overall width w/ lead protrusion: 30R090-30R185 C 2 43.2 max. Overall width w/ lead protrusion: 30R250-30R900 57 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: 30R090-30R300 P 0 P 0 12.7 -/+ 0.3 Sprocket hole pitch on: 30R400-30R900 P 0 P 0 25.4 -/+ 0.5 Device pitch: 30R090-30R300 12.7 Device pitch: 30R400-30R900 25.4 Pitch tolerance 20 consecutive. -/+ 1 Tape thickness t 0.9 max. Tape thickness with splice: 30R090-30R250 t 1 1.5 max. Tape thickness with splice: 30R300-30R900 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 -/+ 0.7 Ordinate to adjacent component lead* 7.62 -/+ 0.7 Lead spacing: 30R090-30R400 F 5.08 -/+ 0.8 Lead spacing: 30R500-30R900 F 10.18 -/+ 0.8 Tape and Ammo Specifications Devices taped using EIA468-B/IE286-2 standards. See table below and Figure 1 for details. *Differs from EIA Specification WARNING Users shall independently assess the suitability of these devices for each of their applications Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such conditions are expected to be repetitive or prolonged in duration Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device.

Previous Page
Next Page