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

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Diodes Incorporated
In Stock: 241.354
Unit Price: €64.56000
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Diodes Incorporated
In Stock: 236.830
Unit Price: €104.53000
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onsemi
In Stock: 14.662
Unit Price: €58.42000
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Nexperia USA Inc.
In Stock: 0
Unit Price: €98.38000
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Infineon Technologies
In Stock: 0
Unit Price: €23.52313
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onsemi
In Stock: 15.088
Unit Price: €64.56000
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onsemi
In Stock: 32.164
Unit Price: €76.86000
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onsemi
In Stock: 43.900
Unit Price: €52.27000
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Nexperia USA Inc.
In Stock: 34.463
Unit Price: €64.56000
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MCC (Micro Commercial Components)
In Stock: 33.063
Unit Price: €52.27000
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MCC (Micro Commercial Components)
In Stock: 6.062
Unit Price: €73.79000
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Nexperia USA Inc.
In Stock: 0
Unit Price: €58.42000
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Nexperia USA Inc.
In Stock: 5.362
Unit Price: €58.42000
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Nexperia USA Inc.
In Stock: 9.998
Unit Price: €58.42000
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 Incorporated241.354MMBTA42-FDICT-ND€64.56000Direct
MMSTA42-7-FDiodes Incorporated236.830MMSTA42-FDICT-ND€104.53000Similar
MMBTA42LT3Gonsemi14.662MMBTA42LT3GOSCT-ND€58.42000Direct
BF820,215Nexperia USA Inc.01727-4921-1-ND€98.38000Similar
BFN26E6327HTSA1Infineon Technologies0BFN26E6327HTSA1TR-ND€23.52313Similar
Discontinued
This product is no longer carried by DigiKey. View Substitutes
All prices are in EUR
Cut Tape (CT)
QuantityUnit PriceExt Price
1€0.30000€0.30
Tape & Reel (TR)
QuantityUnit PriceExt Price
30.000€0.06272€1,881.60
75.000€0.06162€4,621.50
Unit Price without VAT:€0.30000
Unit Price with VAT:€0.36300