2SC4672T100P Equivalent & Substitute Parts

Part Overview

The 2SC4672T100P is an NPN bipolar junction transistor manufactured by Rohm Semiconductor, rated for 50V collector-emitter breakdown voltage and 2A maximum collector current. This device is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product portfolio. The part is housed in a TO-243AA package (MPT3 supplier designation) and is suitable for surface mount applications requiring 500mW power dissipation at operating temperatures up to 150°C.

Due to its obsolescence status, identifying equivalent and substitute parts is necessary for design continuity, legacy system support, and procurement flexibility. Substitute parts must maintain electrical compatibility across critical parameters including voltage ratings, current capacity, and thermal characteristics while accommodating potential differences in frequency response and saturation voltage characteristics.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	50	V
Current - Collector (Ic) (Max)	2	A
Power - Max	500	mW
Frequency - Transition	210	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-243AA	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2SC4672T100P is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Direct Equivalents):

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 50V minimum
Current - Collector (Ic) (Max): 2A minimum
Power - Max: 500mW minimum
Operating Temperature: 150°C maximum
Mounting Type: Surface Mount
Package / Case: TO-243AA

Direct Substitutes meet all primary criteria with identical or superior electrical ratings and are listed as active products:

2SD1623S-TD-E (onsemi)
PBSS4250X,115 (Nexperia USA Inc.)
PBSS4250X,135 (Nexperia USA Inc.)

Similar Parts exceed the primary substitution criteria in one or more parameters (higher current rating, higher power dissipation, or higher frequency response) and are suitable for applications where the 2SC4672T100P specifications represent minimum requirements:

2DC4672-13 (Diodes Incorporated)
2SC5964-TD-E (onsemi)
2SC5964-TD-H (onsemi)
2SD1624S-TD-E (onsemi)
2SD1624T-TD-E (onsemi)
PBSS4350X,146 (Nexperia USA Inc.)

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and TO-243AA package compatibility.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) [A]	Vce(br) [V]	Power [mW]	Frequency [MHz]	Vce Sat [mV]	hFE (Min)	Product Status	Package
2SC4672T100P	Rohm Semiconductor	2	50	500	210	350 @ 50mA, 1A	82 @ 500mA, 2V	Not For New Designs	TO-243AA (MPT3)
2SD1623S-TD-E	onsemi	2	50	500	150	400 @ 50mA, 1A	100 @ 100mA, 2V	Active	TO-243AA (PCP)
PBSS4250X,115	Nexperia USA Inc.	2	50	1000	100	320 @ 200mA, 2A	300 @ 1A, 2V	Active	TO-243AA (SOT-89)
PBSS4250X,135	Nexperia USA Inc.	2	50	1000	100	320 @ 200mA, 2A	300 @ 1A, 2V	Active	TO-243AA (SOT-89)
2DC4672-13	Diodes Incorporated	3	50	900	180	350 @ 50mA, 1A	82 @ 500mA, 2V	Active	TO-243AA (SOT-89-3)
2SC5964-TD-E	onsemi	3	50	3500	380	290 @ 100mA, 2A	200 @ 100mA, 2V	Active	TO-243AA (PCP)
2SC5964-TD-H	onsemi	3	50	3500	380	290 @ 100mA, 2A	200 @ 100mA, 2V	Active	TO-243AA (PCP)
2SD1624S-TD-E	onsemi	3	50	500	150	500 @ 100mA, 2A	140 @ 100mA, 2V	Active	TO-243AA (PCP)
2SD1624T-TD-E	onsemi	3	50	500	150	500 @ 100mA, 2A	200 @ 100mA, 2V	Active	TO-243AA (PCP)
PBSS4350X,146	Nexperia USA Inc.	3	50	1600	100	370 @ 300mA, 3A	300 @ 1A, 2V	Active	TO-243AA (SOT-89)

Engineering Selection Recommendations

For Direct Replacement (Minimum Specification Match):

The 2SD1623S-TD-E (onsemi) and PBSS4250X variants (Nexperia USA Inc.) are classified as direct substitutes, meeting or exceeding all electrical specifications of the 2SC4672T100P while maintaining active product status. The 2SD1623S-TD-E operates at identical voltage and current ratings with equivalent power dissipation. The PBSS4250X series provides enhanced power handling (1W versus 500mW) and automotive-grade qualification (AEC-Q100), making these parts suitable for applications requiring higher reliability margins or automotive environments.

For Enhanced Performance Applications:

Parts exceeding the 2SC4672T100P specifications—including the 2DC4672-13, 2SC5964 variants, 2SD1624 variants, and PBSS4350X,146—are classified as similar parts. These devices maintain the 50V voltage rating and TO-243AA package while offering increased current capacity (3A), higher power dissipation (900mW to 3.5W), or improved frequency response (150MHz to 380MHz). Selection of these parts is appropriate when circuit design margins require higher performance headroom or when thermal management benefits from increased power handling capability.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. The PBSS4250X and PBSS4350X series carry AEC-Q100 automotive qualification, providing additional assurance for applications in automotive or mission-critical environments.

Product Status Consideration:

The 2SC4672T100P is designated "Not For New Designs." All recommended substitute parts carry "Active" product status, ensuring long-term availability and continued manufacturer support. Selection of active parts eliminates future obsolescence risk and provides access to current manufacturing processes and quality standards.

Frequently Asked Questions (FAQ)

Q: Can the 2SD1623S-TD-E directly replace the 2SC4672T100P without circuit modification?

A: The 2SD1623S-TD-E meets the primary electrical specifications of the 2SC4672T100P (50V, 2A, 500mW, TO-243AA package). However, the transition frequency is lower (150MHz versus 210MHz), and saturation voltage is slightly higher (400mV versus 350mV at specified test conditions). Direct substitution is valid for applications where these parameter differences do not affect circuit performance. Circuit validation is required for frequency-sensitive or switching-speed-critical applications.

Q: What is the difference between the PBSS4250X,115 and PBSS4250X,135 variants?

A: Both variants are electrically identical NPN transistors rated for 50V, 2A, and 1W power dissipation with identical frequency and gain characteristics. The numerical suffixes (115 and 135) represent different tape reel configurations or manufacturing date codes from Nexperia USA Inc. Selection between these variants depends on packaging and procurement requirements rather than electrical performance.

Q: Why do the 2SC5964-TD-E and 2SC5964-TD-H have different part numbers despite identical specifications?

A: The 2SC5964-TD-E is supplied in Cut Tape (CT) & Digi-Reel® packaging, while the 2SC5964-TD-H is supplied in Tape & Reel (TR) packaging. Both parts are electrically identical with 3A current rating, 3.5W power dissipation, and 380MHz transition frequency. Selection depends on assembly line requirements and packaging compatibility with automated pick-and-place equipment.

Q: Can I use the PBSS4350X,146 in place of the 2SC4672T100P in a 2A application?

A: The PBSS4350X,146 is rated for 3A maximum collector current and 1.6W power dissipation, exceeding the 2SC4672T100P specifications. It is suitable for 2A applications and provides additional performance margin. The higher current and power ratings do not create incompatibility; however, the lower transition frequency (100MHz versus 210MHz) may affect high-frequency circuit performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and MSL Level 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing processes and environmental regulations.

Q: What is the significance of the TO-243AA package designation across different supplier device packages (MPT3, PCP, SOT-89)?

A: TO-243AA is the standardized JEDEC package outline. The supplier device package designations (MPT3, PCP, SOT-89) represent manufacturer-specific naming conventions for the same physical package. All parts listed use the TO-243AA package outline, ensuring mechanical and thermal compatibility. Supplier device package names differ due to manufacturer conventions but do not affect physical interchangeability.

Q: Should I select a similar part with higher current rating (3A) for a 2A application?

A: Selection of higher-rated parts (2DC4672-13, 2SC5964 variants, 2SD1624 variants, PBSS4350X,146) for 2A applications is valid and provides performance margin. Higher current ratings do not create functional incompatibility. Selection depends on thermal management requirements, circuit design margins, and cost considerations. Parts with higher power dissipation ratings (900mW to 3.5W) offer improved thermal performance compared to the 500mW 2SC4672T100P.

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