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MMBTA42 — SOT-23 (3-lead) package (representative)
SOT-23 (3-lead)
Representative of package type
onsemi

MMBTA42

NPN Bipolar Transistor · SOT-23 · Discrete Semiconductor
Part Status: Active In demand
Data last refreshed Jun 20, 2026
Manufacturer
onsemi
Mfr Part #
MMBTA42
Series
MMBT
Category
NPN Bipolar Transistor
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$0.06
Last transacted2006-10-25
Market range$0.06
Sourcing channels16
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Vceo300 V
Ic500 mA
Hfe40 min @ 10 mA
Physical & Thermal
Package / CaseSOT-23
Mounting TypeSurface Mount
SeriesMMBT
Operating Temperature-55°C ~ 150°C
Classification & Lifecycle
CategoryNPN Bipolar Transistor
TypeDiscrete Semiconductor
Part StatusActive

NPN high-voltage transistor, 300 V Vceo, 500 mA Ic, SOT-23

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Availability & Sourcing

16 sources
SourceMfrQtyDate CodeConditionStatus
Live ON 9015 — — Live RFQ
Live DIOTEC, FAIRCHILD SE 233539 — — Live RFQ
Live Diotec Semiconductors 99000 — — Live RFQ
Live NSC 98800 — — Live RFQ
Live DIOTEC 50000 25+ — Live RFQ
Live CJ 45007 21+ — Live RFQ
Live — 32290 — — Live RFQ
Live FSC 21000 O508 — Live RFQ
Live PJI 12000 2007+ — Live RFQ
Live Fairchild 9958 multi — Live RFQ
Live FSC 9000 O446 — Live RFQ
Live DIO 9000 — — Live RFQ
Live ONSEMI 45000 25+ — Live RFQ
Live — 18000 10+ — Live RFQ
Live NXP 332838 20+ — Live RFQ
Live ONSEMI 230127 — — Live RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Price History & Market Reference

Market Price Range

High$0.06
Low$0.06
Last$0.06
Price as of2006-10-25

ZDI Transaction

Last ZDI price$0.06
As of2006-10-25
Active offers16

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
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Recent search and sourcing activity for MMBTA42.

Engineering FAQ

What are the key specifications of MMBTA42?
Vceo: 300 V; Ic: 500 mA; Hfe: 40 min @ 10 mA.
What package is MMBTA42 supplied in?
MMBTA42 is supplied in the SOT-23 package, surface mount, rated -55°C ~ 150°C.
Can ZDI source MMBTA42 beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

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