Transistors - Programmable Unijunction

Category Introduction

Programmable unijunction transistors (PUTs) are a relative of Silicon Controlled Rectifier (SCR) devices, having a characteristic behavior somewhat like a unidirectional DIAC with a user-configurable threshold voltage. While useful for creating low frequency oscillator and timing functions, SCR triggering applications, and others, alternative techniques for addressing such needs have gained greater favor.

Product List

39 Items

PDF	Mfr Part #	Quantity Available	UnitPrice	RFQ	Series	Packaging	Product Status	Voltage	Power Dissipation (Max)	Voltage - Output	Voltage - Offset (Vt)	Current - Gate to Anode Leakage (Igao)	Current - Valley (Iv)	Current - Peak	Package / Case
	2N4988 SMALL SIGNAL BIPOLAR TRANSISTOR Harris Corporation	1,010	$0.57			Bulk	Active	30V	300 mW	3.5V	-	-	-	-	TO-98-3
	2N2646 UNI JUNCT TRANS TO18 Solid State Inc.	243	$1.18			Box	Active	35V	300 mW	-	3 V	-	600 µA	5 µA	TO-206AA, TO-18-3 Metal Can
	2N4989 SMALL SIGNAL BIPOLAR TRANSISTOR Harris Corporation	201	$1.43			Bulk	Active	30V	300 mW	-	-	-	-	-	TO-98-3
	CMPP6028 TR PBFREE PROGRAMMABLE UJT SOT-23 Central Semiconductor Corp	354	$2.74			Tape & Reel (TR)	Active	40V	167 mW	6V	600 mV	10 nA	25 µA	150 nA	TO-236-3, SC-59, SOT-23-3
	NTE6410 T-UNIJUNCTION SI NTE Electronics, Inc	31	$7.69			Bag	Active	-	300 mW	-	-	-	7 mA	5 µA	TO-226-3, TO-92-3 (TO-226AA)
	NTE6401 T-UNIJUNCTION SI NTE Electronics, Inc	38	$9.08			Bag	Active	-	300 mW	-	-	-	6 mA	5 µA	TO-206AA, TO-18-3 Metal Can
	NTE6409 T-UNIJUNCTION SI NTE Electronics, Inc	27	$9.57			Bag	Active	-	600 mW	-	-	-	18 mA	2 µA	TO-206AA, TO-18-3 Metal Can
	NTE6400 T-UNIJUNCTION SI NTE Electronics, Inc	13	$59.48			Bag	Active	-	300 mW	-	-	-	8 mA	25 µA	TO-205AD, TO-39-3 Metal Can
	NTE6400A T-UNIJUNCTION SI NTE Electronics, Inc	5	$55.21			Bag	Active	-	600 mW	-	-	-	8 mA	25 µA	TO-205AD, TO-39-3 Metal Can
	GES6028 PNP PROGRAMMABLE UNIJUNCTION TRA Harris Corporation	208	$0.00			Bulk	Active	1.5V	300 mW	6V	1.6 V	10 nA	25 µA	150 nA	TO-226-3, TO-92-3 (TO-226AA)
	NTE6402 T-PROG. UNIJUNCTION SI NTE Electronics, Inc	180	$3.03			Bag	Active	40V	300 mW	6V	1.6 V	10 nA	50 µA	2 µA	TO-226-3, TO-92-3 (TO-226AA)
	CMPP6027 TR PBFREE PROGRAMMABLE UJT SOT-23 Central Semiconductor Corp	455	$1.20			Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-
	2N6027 PBFREE PROGRAMMABLE UJT 40V TO226-3 Central Semiconductor Corp	433	$1.21			Bulk	Active	40V	300 mW	6V	1.6 V	10 nA	50 µA	2 µA	TO-226-3, TO-92-3 (TO-226AA)
	2N6028 PBFREE PROGRAMMABLE UJT 40V TO226-3 Central Semiconductor Corp	136	$1.23			Bulk	Active	40V	300 mW	6V	600 mV	10 nA	25 µA	150 nA	TO-226-3, TO-92-3 (TO-226AA)
	2N2647 TO 18 UNIJUNCTION TRANSISTOR Solid State Inc.	249	$1.38			Bulk	Active	35V	300 mW	7V	-	-	18 mA	2 µA	TO-206AA, TO-18-3 Metal Can
	2N1671 TO 5 UNIJUNCTION TRANSISTOR Solid State Inc.	3	$58.87			Bulk	Active	30V	450 mW	-	-	-	-	25 µA	TO-205AA, TO-5-3 Metal Can
	2N1671A TO 5 UNIJUNCTION TRANSISTOR Solid State Inc.	12	$58.95			Bulk	Active	30V	450 mW	-	-	-	-	25 µA	TO-205AA, TO-5-3 Metal Can
	2N1671C TO 5 UNIJUNCTION TRANSISTOR Solid State Inc.	6	$59.21			Bulk	Active	30V	450 mW	-	-	-	-	25 µA	TO-205AA, TO-5-3 Metal Can
	2N6027RLRA THYRISTOR PROG UNIJUNCT 40V TO92 onsemi	476	$0.00			Cut Tape (CT)	Obsolete	40V	300 mW	11V	1.6 V	10 nA	50 µA	2 µA	TO-226-3, TO-92-3 (TO-226AA) Formed Leads
	2N6028RLRA THYRISTOR PROG UNIJUNCT 40V TO92 onsemi	99	$0.00			Cut Tape (CT)	Obsolete	40V	300 mW	11V	600 mV	10 nA	25 µA	150 nA	TO-226-3, TO-92-3 (TO-226AA) Formed Leads