MMBTA42-7 is Discontinued and no longer carried by DigiKey.
Available Substitutes:

Direct


Diodes Incorporated
In Stock: 215,328
Unit Price: $0.30000
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Diodes Incorporated
In Stock: 95,730
Unit Price: $0.49000
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Direct


onsemi
In Stock: 10,426
Unit Price: $0.27000
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Nexperia USA Inc.
In Stock: 0
Unit Price: $0.46000
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Infineon Technologies
In Stock: 0
Unit Price: $0.12437
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onsemi
In Stock: 25,036
Unit Price: $0.30000
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onsemi
In Stock: 32,164
Unit Price: $0.36000
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onsemi
In Stock: 27,442
Unit Price: $0.26000
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Nexperia USA Inc.
In Stock: 34,113
Unit Price: $0.30000
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MCC (Micro Commercial Components)
In Stock: 31,978
Unit Price: $0.26000
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MCC (Micro Commercial Components)
In Stock: 9,062
Unit Price: $0.38000
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Nexperia USA Inc.
In Stock: 0
Unit Price: $0.27000
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Nexperia USA Inc.
In Stock: 1,752
Unit Price: $0.27000
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Nexperia USA Inc.
In Stock: 9,498
Unit Price: $0.27000
Datasheet
Bipolar (BJT) Transistor NPN 300 V 500 mA 50MHz 300 mW Surface Mount SOT-23-3
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

MMBTA42-7

DigiKey Part Number
MMBTA42DITR-ND - Tape & Reel (TR)
MMBTA42DICT-ND - Cut Tape (CT)
Manufacturer
Manufacturer Product Number
MMBTA42-7
Description
TRANS NPN 300V 0.5A SOT-23-3
Customer Reference
Detailed Description
Bipolar (BJT) Transistor NPN 300 V 500 mA 50MHz 300 mW Surface Mount SOT-23-3
Datasheet
 Datasheet
EDA/CAD Models
MMBTA42-7 Models
Product Attributes
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Show Empty Attributes
Category
DC Current Gain (hFE) (Min) @ Ic, Vce
40 @ 30mA, 10V
Mfr
Power - Max
300 mW
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Frequency - Transition
50MHz
Part Status
Discontinued at DigiKey
Operating Temperature
-55°C ~ 150°C (TJ)
Transistor Type
Mounting Type
Surface Mount
Current - Collector (Ic) (Max)
500 mA
Package / Case
TO-236-3, SC-59, SOT-23-3
Voltage - Collector Emitter Breakdown (Max)
300 V
Supplier Device Package
SOT-23-3
Vce Saturation (Max) @ Ib, Ic
500mV @ 2mA, 20mA
Base Product Number
Current - Collector Cutoff (Max)
100nA (ICBO)
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (15)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
MMBTA42-7-FDiodes Incorporated215,328MMBTA42-FDICT-ND$0.30000Direct
MMSTA42-7-FDiodes Incorporated95,730MMSTA42-FDICT-ND$0.49000Similar
MMBTA42LT3Gonsemi10,426MMBTA42LT3GOSCT-ND$0.27000Direct
BF820,215Nexperia USA Inc.01727-4921-1-ND$0.46000Similar
BFN26E6327HTSA1Infineon Technologies0BFN26E6327HTSA1TR-ND$0.12437Similar
Discontinued
This product is no longer carried by DigiKey. View Substitutes
All prices are in CAD
Cut Tape (CT)
QuantityUnit PriceExt Price
1$0.51000$0.51
Tape & Reel (TR)
QuantityUnit PriceExt Price
30,000$0.10662$3,198.60
75,000$0.10474$7,855.50