MJD47 NPN Bipolar Transistor Equivalent & Substitute Parts

Part Overview

The MJD47 is an NPN bipolar junction transistor manufactured by onsemi, rated for 250 V collector-emitter breakdown voltage and 1 A maximum collector current in a surface mount DPAK package. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts maintain identical electrical specifications and mechanical compatibility while offering active product status and improved compliance certifications.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	250	V
Current - Collector (Ic) (Max)	1	A
Power - Max	1.56	W
Frequency - Transition	10	MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	30 @ 300mA, 10V	—
Vce Saturation (Max) @ Ib, Ic	1V @ 200mA, 1A	—
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the MJD47 is determined by strict equivalence across the following critical parameters:

Electrical Specifications (Must Match):

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 250 V
Current - Collector (Ic) (Max): 1 A
DC Current Gain (hFE) (Min) @ Ic, Vce: 30 @ 300mA, 10V
Vce Saturation (Max) @ Ib, Ic: 1V @ 200mA, 1A
Frequency - Transition: 10 MHz
Operating Temperature Range: -65°C to 150°C (TJ)

Mechanical Specifications (Must Match):

Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount
Supplier Device Package: DPAK

Acceptable Variations:

Packaging format (Tube, Tape & Reel, Cut Tape) does not affect electrical or mechanical compatibility
Product Status transition from Obsolete to Active is acceptable
RoHS compliance upgrade from non-compliant to ROHS3 Compliant is acceptable
Power rating may exceed the minimum 1.56 W specification

All substitute parts listed maintain full electrical and mechanical compatibility with the MJD47 while offering improved product availability and compliance status.

Parameter Comparison

Parameter	MJD47	MJD47G	MJD47T4G	NJVMJD47T4G	MJD47T4 (STM)
Manufacturer	onsemi	onsemi	onsemi	onsemi	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active
Transistor Type	NPN	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	250 V	250 V	250 V	250 V	250 V
Current - Collector (Ic) (Max)	1 A	1 A	1 A	1 A	1 A
Power - Max	1.56 W	1.56 W	1.56 W	1.56 W	15 W
Frequency - Transition	10 MHz	10 MHz	10 MHz	10 MHz	10 MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	30 @ 300mA, 10V	30 @ 300mA, 10V	30 @ 300mA, 10V	30 @ 300mA, 10V	30 @ 300mA, 10V
Vce Saturation (Max) @ Ib, Ic	1V @ 200mA, 1A	1V @ 200mA, 1A	1V @ 200mA, 1A	1V @ 200mA, 1A	1V @ 200mA, 1A
Current - Collector Cutoff (Max)	200 µA	200 µA	200 µA	200 µA	100 µA
Operating Temperature Range	-65 to 150°C (TJ)	-65 to 150°C (TJ)	-65 to 150°C (TJ)	-65 to 150°C (TJ)	150°C (TJ)
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging Format	—	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory (Pcs)	5200	2208	18668	35200	4430

Engineering Selection Recommendations

Primary Substitutes (onsemi Manufacturer):

MJD47G and MJD47T4G are direct onsemi equivalents with identical electrical and mechanical specifications to the MJD47. Both parts are active products with ROHS3 compliance certification. Selection between these two depends on packaging requirements: MJD47G is supplied in Tube format, while MJD47T4G is supplied in Tape & Reel format. MJD47T4G offers the highest inventory availability at 18,668 pieces.

NJVMJD47T4G is an onsemi variant with identical electrical specifications and ROHS3 compliance, supplied in Tape & Reel format with the highest inventory level at 35,200 pieces. This part carries a different base product number designation but maintains full electrical and mechanical compatibility.

Alternative Substitute (STMicroelectronics Manufacturer):

MJD47T4 from STMicroelectronics meets all critical electrical specifications and maintains identical mechanical compatibility in the DPAK package. This part features an enhanced power rating of 15 W compared to the 1.56 W specification of the MJD47, and a lower collector cutoff current of 100 µA versus 200 µA. The operating temperature specification differs, listing only the maximum junction temperature of 150°C without the lower limit. MJD47T4 is ROHS3 compliant and supplied in Cut Tape and Digi-Reel format.

Compliance Considerations:

All substitute parts are ROHS3 compliant, addressing the non-compliant status of the obsolete MJD47. All parts maintain REACH Unaffected status and EAR99 export classification. Moisture Sensitivity Level remains at 1 (Unlimited) across all variants.

Frequently Asked Questions (FAQ)

Q: Can MJD47G, MJD47T4G, NJVMJD47T4G, and MJD47T4 be used interchangeably with the MJD47?

A: Yes, all listed substitute parts are electrically and mechanically equivalent to the MJD47. They share identical collector-emitter breakdown voltage (250 V), maximum collector current (1 A), DC current gain specifications, saturation voltage characteristics, and transition frequency (10 MHz). All parts use the same TO-252-3 DPAK surface mount package with identical pinout and thermal characteristics.

Q: What is the difference between MJD47G and MJD47T4G?

A: Both parts are onsemi products with identical electrical specifications. The primary difference is packaging format: MJD47G is supplied in Tube packaging, while MJD47T4G is supplied in Tape & Reel format. Selection depends on assembly line requirements and volume needs. MJD47T4G offers higher inventory availability.

Q: Why is NJVMJD47T4G listed as a substitute if it has a different base product number?

A: NJVMJD47T4G maintains complete electrical and mechanical equivalence to the MJD47 across all critical parameters. The different base product number designation reflects onsemi's product line organization but does not affect functional compatibility. This part is fully interchangeable in circuit applications.

Q: Can I use MJD47T4 from STMicroelectronics as a direct replacement?

A: MJD47T4 is electrically and mechanically compatible with the MJD47 for the specified operating conditions. The part meets all critical electrical requirements and uses the identical DPAK package. The enhanced power rating (15 W versus 1.56 W) and lower collector cutoff current (100 µA versus 200 µA) represent performance improvements. The operating temperature specification differs; verify that the maximum junction temperature of 150°C meets your application requirements.

Q: Does packaging format affect electrical performance?

A: No. Tube, Tape & Reel, and Cut Tape packaging formats are logistics and assembly considerations only. They do not affect electrical characteristics, performance, or reliability of the transistor itself. Selection should be based on your manufacturing process and volume requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (MJD47G, MJD47T4G, NJVMJD47T4G, and MJD47T4) are ROHS3 compliant. The original MJD47 is RoHS non-compliant. Substitution provides compliance upgrade for new designs and production runs.

Q: What is the minimum operating temperature for MJD47T4?

A: The provided specifications for MJD47T4 list only the maximum junction temperature of 150°C. The MJD47, MJD47G, MJD47T4G, and NJVMJD47T4G specify an operating temperature range of -65°C to 150°C (TJ). Verify the lower temperature limit requirement for your application before selecting MJD47T4.

Q: Which substitute part should I select for new designs?

A: For new designs, select from the active product alternatives based on your specific requirements: MJD47T4G or NJVMJD47T4G for onsemi sourcing with Tape & Reel packaging, MJD47G for Tube packaging, or MJD47T4 for STMicroelectronics sourcing. All parts meet the electrical and mechanical specifications of the obsolete MJD47 and offer improved compliance status.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message