2SC3052-E-TP Equivalent & Substitute Parts

Part Overview

The 2SC3052-E-TP is an NPN bipolar junction transistor (BJT) manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-23 package. This component operates at a maximum collector current of 200 mA with a 50 V collector-emitter breakdown voltage and a transition frequency of 180 MHz. The part is classified as obsolete, necessitating identification of active equivalent components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	200	mA
Voltage - Collector Emitter Breakdown (Max)	50	V
Vce Saturation (Max)	300 mV @ 10 mA, 100 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min	150 @ 1 mA, 6 V	—
Power - Max	150	mW
Frequency - Transition	180	MHz
Operating Temperature Range	-55 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2SC3052-E-TP is determined by electrical and mechanical parameter compatibility within the NPN BJT category. The critical parameters governing substitution are:

Electrical Compatibility Criteria:

Transistor type: NPN configuration
Voltage rating: Collector-emitter breakdown voltage of 50 V or greater
Current rating: Collector current capacity of 150 mA or greater (note: substitute parts rated at 150 mA are acceptable for applications not requiring the full 200 mA specification)
Transition frequency: 180 MHz minimum
DC current gain: Minimum hFE of 150 or greater at specified test conditions
Saturation characteristics: Vce saturation values within acceptable operating ranges

Mechanical Compatibility Criteria:

Package type: SOT-23-3 (TO-236-3, SC-59) surface mount configuration
Mounting type: Surface mount technology
Moisture sensitivity: MSL 1 or equivalent

The identified substitute parts 2DC2412R-7 (Diodes Incorporated) and 2SC2412KT146R (Rohm Semiconductor) meet these criteria with the following considerations: both substitute parts operate at 150 mA maximum collector current, which is lower than the original 200 mA specification. Both maintain the 50 V voltage rating, 180 MHz transition frequency, and SOT-23-3 package compatibility. The substitute parts are classified as active products, ensuring ongoing availability and supply chain continuity.

Parameter Comparison

Parameter	2SC3052-E-TP (Main)	2DC2412R-7 (Diodes Inc.)	2SC2412KT146R (Rohm)	Unit
Transistor Type	NPN	NPN	NPN	—
Current - Collector (Ic) Max	200	150	150	mA
Voltage - Collector Emitter Breakdown (Max)	50	50	50	V
Vce Saturation (Max)	300 mV @ 10 mA, 100 mA	400 mV @ 5 mA, 50 mA	400 mV @ 5 mA, 50 mA	—
Current - Collector Cutoff (Max)	100	100	100	nA
DC Current Gain (hFE) Min	150 @ 1 mA, 6 V	180 @ 1 mA, 6 V	180 @ 1 mA, 6 V	—
Power - Max	150	300	200	mW
Frequency - Transition	180	180	180	MHz
Operating Temperature Range	-55 to 125	-55 to 150	-55 to 150	°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—
Product Status	Obsolete	Active	Active	—

Engineering Selection Recommendations

2DC2412R-7 (Diodes Incorporated): This substitute part is classified as active with ROHS3 compliance and unlimited moisture sensitivity rating. The 2DC2412R-7 provides 300 mW maximum power dissipation, exceeding the original 150 mW specification, and operates across an extended temperature range of -55°C to 150°C. The collector current rating of 150 mA is suitable for applications where the full 200 mA specification of the original part is not required. This part is available in high volume (4400 pcs in stock) and is supplied in Cut Tape and Digi-Reel packaging formats.

2SC2412KT146R (Rohm Semiconductor): This substitute part is classified as active with ROHS3 compliance and unlimited moisture sensitivity rating. The 2SC2412KT146R provides 200 mW maximum power dissipation and operates across an extended temperature range of -55°C to 150°C. The collector current rating of 150 mA is suitable for applications where the full 200 mA specification of the original part is not required. This part is available in very high volume (1,000,300 pcs in stock) and is supplied in Cut Tape and Digi-Reel packaging formats.

Both substitute parts maintain electrical compatibility through matching voltage ratings, transition frequency, and package configuration. The selection between these two substitutes depends on supply chain requirements, packaging preferences, and power dissipation headroom needed for the specific application circuit.

Frequently Asked Questions (FAQ)

Q: Can the 2DC2412R-7 or 2SC2412KT146R be used as direct replacements for the 2SC3052-E-TP?

A: Both parts are electrically and mechanically compatible substitutes for the 2SC3052-E-TP in SOT-23 surface mount applications. The primary difference is the maximum collector current rating: the substitute parts are rated at 150 mA compared to the original 200 mA. Direct substitution is appropriate for circuits designed to operate within the 150 mA collector current specification.

Q: What is the significance of the lower collector current rating in the substitute parts?

A: The substitute parts (2DC2412R-7 and 2SC2412KT146R) are rated for 150 mA maximum collector current, while the original 2SC3052-E-TP is rated for 200 mA. This difference affects the maximum current-handling capability of the transistor. Applications requiring collector currents above 150 mA cannot use these substitutes. Applications operating below 150 mA are unaffected by this specification difference.

Q: Are the substitute parts available in the same package as the original?

A: Yes. Both substitute parts are supplied in the SOT-23-3 package (also designated TO-236-3 or SC-59), which is mechanically and electrically identical to the original 2SC3052-E-TP package. PCB footprints and assembly processes remain unchanged.

Q: What is the difference in power dissipation between the original and substitute parts?

A: The 2SC3052-E-TP is rated for 150 mW maximum power dissipation. The 2DC2412R-7 is rated for 300 mW, and the 2SC2412KT146R is rated for 200 mW. Higher power dissipation ratings provide additional thermal margin in the application circuit but do not affect substitution compatibility.

Q: Do the substitute parts have different operating temperature ranges?

A: The 2SC3052-E-TP operates from -55°C to 125°C. Both substitute parts operate from -55°C to 150°C, providing an extended upper temperature limit. This extended range is beneficial for applications operating in elevated temperature environments.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 2DC2412R-7 and 2SC2412KT146R are ROHS3 compliant, matching the compliance status of the original 2SC3052-E-TP. Both parts also have unlimited moisture sensitivity level (MSL 1).

Q: What is the difference in DC current gain between these parts?

A: The 2SC3052-E-TP has a minimum DC current gain (hFE) of 150 at 1 mA and 6 V. Both substitute parts have a minimum hFE of 180 at the same test conditions, providing higher current gain. This difference does not prevent substitution and may improve circuit performance in gain-dependent applications.

Q: Which substitute part should be selected for new designs?

A: Both parts are suitable for new designs. The 2SC2412KT146R (Rohm Semiconductor) offers significantly higher inventory availability (1,000,300 pcs) compared to the 2DC2412R-7 (4,400 pcs), which may influence supply chain decisions. Both parts are active products with ongoing manufacturer support.

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