2N2646 2N2647 SILICON PN UNIJUNCTION TRANSISTORS w w w. c e n t r a l s e m i . c o m DESCRIPTION: The CENTRAL SEMICONDUCTOR 2N2646 and 2N2647 devices are silicon PN Unijunction Transistors designed for general purpose industrial applications. MARKING: FULL PART NUMBER TO-18 (UJT) CASE MAXIMUM RATINGS: (TA=25C) Emitter Reverse Voltage Interbase Voltage RMS Emitter Current Peak Emitter Current (Duty Cycle 1%, PRR10pps) RMS Power Dissipation Operating and Storage Junction Temperature SYMBOL VB2E VB2B1 VB2E=30V IV IP VB2B1=20V, RB2=100 VB2B1=25V VOB1 V1=20V UNITS V 35 V Ie ie 50 mA 2.0 A PD TJ, Tstg 300 mW -65 to +150 C ELECTRICAL CHARACTERISTICS: (TA=25C unless otherwise noted) 2N2646 SYMBOL TEST CONDITIONS MIN MAX VB2B1=10V 0.56 0.75 RBB VB2B1=3.0V 4.7 9.1 IEB2O 30 2N2647 MIN MAX 0.68 0.82 UNITS 4.7 9.1 k 12 - 0.2 A 4.0 - 8.0 18 mA - 5.0 - 2.0 A 3.0 - 6.0 - V - R1 (2-December 2013) 2N2646 2N2647 SILICON PN UNIJUNCTION TRANSISTORS TO-18 (UJT) CASE - MECHANICAL OUTLINE LEAD CODE: 1) Emitter 2) Base 1 3) Base 2 MARKING: FULL PART NUMBER R1 (2-December 2013) w w w. c e n t r a l s e m i . c o m OUTSTANDING SUPPORT AND SUPERIOR SERVICES PRODUCT SUPPORT Central's operations team provides the highest level of support to insure product is delivered on-time. * Supply management (Customer portals) * Custom bar coding for shipments * Inventory bonding * Custom product packing * Consolidated shipping options DESIGNER SUPPORT/SERVICES Central's applications engineering team is ready to discuss your design challenges. Just ask. * Free quick ship samples (2nd day air) * Special wafer diffusions * Online technical data and parametric search * PbSn plating options * SPICE models * Package details * Custom electrical curves * Application notes * Environmental regulation compliance * Application and design sample kits * Customer specific screening * Custom product and package development * Up-screening capabilities REQUESTING PRODUCT PLATING 1. 2. If requesting Tin/Lead plated devices, add the suffix " TIN/LEAD" to the part number when ordering (example: 2N2222A TIN/LEAD). If requesting Lead (Pb) Free plated devices, add the suffix " PBFREE" to the part number when ordering (example: 2N2222A PBFREE). CONTACT US Corporate Headquarters & Customer Support Team Central Semiconductor Corp. 145 Adams Avenue Hauppauge, NY 11788 USA Main Tel: (631) 435-1110 Main Fax: (631) 435-1824 Support Team Fax: (631) 435-3388 www.centralsemi.com Worldwide Field Representatives: www.centralsemi.com/wwreps Worldwide Distributors: www.centralsemi.com/wwdistributors For the latest version of Central Semiconductor's LIMITATIONS AND DAMAGES DISCLAIMER, which is part of Central's Standard Terms and Conditions of sale, visit: www.centralsemi.com/terms w w w. c e n t r a l s e m i . c o m (001) Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Central Semiconductor: 2N2647