All prices are in US dollars.
Digi-Key Part Number MMBTA42FSTR-ND
Price Break Unit Price Extended Price
3,000 0.05106 153.18
6,000 0.04440 266.40
15,000 0.03774 566.10
30,000 0.03552 1,065.60
75,000 0.03330 2,497.50
150,000 0.02886 4,329.00
Quantity Available Digi-Key Stock: 18,000
Can ship immediately

Manufacturer Part Number


Description TRANS NPN 300V 0.5A SOT-23
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Quantity Item Number ? Customer Reference

When requested quantity exceeds displayed pricing table quantities, a lesser unit price may appear on your order.
You may submit a request for quotation on quantities which are greater than those displayed in the pricing table.

MMBTA42 Fairchild Semiconductor | MMBTA42FSTR-ND DigiKey Electronics

Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

Datasheets MPSA42, MMBTA42, PZTA42
Molded Pkg, SUPERSOT, 3 Lead Drawing
Product Photos SOT-23-3
PCN Design/Specification Mold Compound 12/Dec/2007
PCN Assembly/Origin SOT23 Manufacturing Source 31/May2013
Assembly Site Addition 20/Jul/2015
PCN Packaging Binary Year Code Marking 15/Jan/2014
EDA / CAD Models ? Download from Accelerated Designs
Standard Package ? 3,000

Discrete Semiconductor Products


Transistors (BJT) - Single

Series -
Packaging ? Tape & Reel (TR)?
Transistor Type NPN
Current - Collector (Ic) (Max) 500mA
Voltage - Collector Emitter Breakdown (Max) 300V
Vce Saturation (Max) @ Ib, Ic 500mV @ 2mA, 20mA
Current - Collector Cutoff (Max) 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce 40 @ 30mA, 10V
Power - Max 240mW
Frequency - Transition 50MHz
Mounting Type Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23
Online Catalog NPN Transistors
Other Names MMBTA42FSTR
Alternate Package | This part is also available in the following packaging:
Digi-Key Part Number Manufacturer Part Number Manufacturer Packaging Quantity Available Unit Price Minimum Quantity
MMBTA42FSCT-ND MMBTA42 Fairchild Semiconductor Cut Tape (CT)? 18,956 - Immediate
0.30000 1
MMBTA42FSDKR-ND MMBTA42 Fairchild Semiconductor Digi-Reel®? 18,956 - Immediate
Digi-Reel® 1
MMBTA42_D87Z-ND MMBTA42_D87Z Fairchild Semiconductor Tape & Reel (TR)? 0
Call 10,000

Tape & Reel, Cut Tape and Digi-Reels are all derived from the same manufacturer’s part number. Inventory from Tape & Reel is used to fulfill Cut Tape and Digi-Reel orders and will impact the total quantity available.

Direct Substitute ?
Digi-Key Part Number Manufacturer Part Number Manufacturer Packaging Quantity Available Unit Price Minimum Quantity
KST42MTFTR-ND KST42MTF Fairchild Semiconductor Tape & Reel (TR)? 36,000 - Immediate
636,000 - Factory Stock
0.03657 3,000
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16:25:10 2/5/2016