2N4871 Central Semiconductor

2N4870 2N4871 www.centralsemi.com SILICON DESCRIPTION: PN UNIJUNCTION TRANSISTORS The CENTRAL SEMICONDUCTOR 2N4870 and 2N4871 are silicon PN unijunction transistors designed for oscillator, triggering and timing applications. MARKING: FULL PART NUMBER TO-92 CASE MAXIMUM RATINGS: (T =25C) SYMBOL UNITS A Emitter Reverse Voltage V 30 V B2E Interbase Voltage V 35 V B2B1 RMS Emitter Current I 1.5 A e Peak Emitter Current (Duty Cycle 1%, PRR=10pps) i 1.0 A e RMS Power Dissipation P 300 mW D Operating Junction Temperature T -65 to +125 C J Storage Temperature T -65 to +150 C stg ELECTRICAL CHARACTERISTICS: (T =25C) 2N4870 2N4871 A SYMBOL TEST CONDITIONS MIN MAX MIN MAX UNITS V=10V 0.56 0.75 0.70 0.85 B2B1 R V=3.0V 4.0 9.1 4.0 9.1 k BB B2B1 I V=30V - 1.0 - 1.0 A EB2O B2E I V =20V, R=100 2.0 - 4.0 - mA V B2B1 B2 I V=25V - 5.0 - 5.0 A P B2B1 V V=20V 3.0 - 5.0 - V OB1 1 R1 (23-April 2013)2N4870 2N4871 SILICON PN UNIJUNCTION TRANSISTORS TO-92 CASE - MECHANICAL OUTLINE LEAD CODE: 1) Base 1 2) Emitter 3) Base 2 MARKING: FULL PART NUMBER R1 (23-April 2013) www.centralsemi.com