LR4-900F

PolySwitch® PTC Devices PRODUCT: LR4-900F DOCUMENT: SCD25964 REV LETTER: D REV DATE: JULY 26, 2016 PAGE NO.: 1 OF 2 Overcurrent Protection Device Specification Status: Released Maximum Electrical Rating Operating Voltage: 20Vdc Interrupt Current: 100A Chip Size: 8 x 33mm Leads: Nickel 1/2H 0.3mm nominal thickness Tape: Polyester ( White) 35 mm nominal width Solder: Lead-free Marking (Color: Green) : ORIENTATION MARK (Blue) Manufacturer's Mark E90 Part Identification Lot Identification TABLE I. DIMENSIONS: A B MIN MAX MIN MAX Mm: 45.4 47.6 7.9 8.5 In*: (1.79) (1.87) (0.31) (0.33) *Rounded off approximation C MIN 0.9 (0.04) D MAX 1.3 (0.05) MIN 4.6 (0.18) E MAX 6.2 (0.24) MIN 4.6 (0.18) F MAX 6.2 (0.24) MIN 5.9 (0.23) MAX 6.1 (0.24) TABLE II. PERFORMANCE RATINGS: As measured in Mueller Kelvin Clips model BU-75K. I HOLD CURRENT TRIP LIMITS TIME TO TRIP REFERENC ONE-HOUR TRIPPEDE POST-TRIP STATE RESISTAN RESISTANC POWER CE E DISSIPATION SECONDS OHMS OHMS AT 20°C, AT 20°C AT 20°C 45.0A HOLD HOLD TRIP HOLD TRIP HOLD TRIP HOLD TRIP MIN MAX MIN MAX MIN MAX 9.0 10.0 18.7 9.0 16.7 6.2 11.6 5.5 10.3 --5 0.006 0.010 0.006 0.014 AMPS 20°C AMPS AT 0°C Angency Recognitions: Reference Documents: Precedence: Effectivity:Reference CAUTION: AMPS AT 20°C AMPS AT 60°C AMPS AT 70°C WATTS AT 20°C, 20V MAX 3.8 UL, TUV, CSA PS300 This specification takes precedence over documents referenced herein. documents shall be the issue in effect on the date of invitation for bid. Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame. MATERIALS INFORMATION: ROHS Compliant © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised July 26, 2016 ELV Compliant Pb-Free littelfuse.com PolySwitch® PTC Devices Overcurrent Protection Device PRODUCT: LR4-900F DOCUMENT: SCD25964 REV LETTER: D REV DATE: JULY 26, 2016 PAGE NO.: 2 OF 2 Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, military, aerospace, medical, lifesaving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised July 26, 2016 littelfuse.com