CPH3144-TL-E Equivalent & Substitute Parts

Part Overview

The CPH3144-TL-E is an onsemi Bipolar (BJT) Transistor, PNP type, rated for 30 V collector-emitter breakdown voltage and 2 A maximum collector current. This surface mount component operates at a transition frequency of 440 MHz with a maximum power dissipation of 900 mW. The part is currently in Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the CPH3144-TL-E reaches end-of-life status, inventory constraints occur, or when design requirements permit operation within the electrical and mechanical parameters of alternative qualified components. The following substitute parts maintain functional equivalence within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	2	A
Voltage - Collector Emitter Breakdown (Max)	30	V
Power - Max	900	mW
Frequency - Transition	440	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the CPH3144-TL-E is determined by the following critical electrical parameters:

Primary Substitution Criteria:

Transistor Type: PNP (mandatory match)
Current - Collector (Ic) (Max): 2 A minimum required
Voltage - Collector Emitter Breakdown (Max): 30 V minimum required
Operating Temperature: 150°C (TJ) minimum required
Mounting Type: Surface Mount (mandatory match)
RoHS Status: ROHS3 Compliant (mandatory match)
Moisture Sensitivity Level: 1 (Unlimited) (mandatory match)

Secondary Considerations:

Power dissipation capability
Transition frequency
Package form factor compatibility
Product status and availability

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (Same Package Family): Parts maintaining the 3-CPH package designation with electrical parameters meeting or exceeding the CPH3144-TL-E specifications.

Category B - Functional Equivalents (Alternative Package): Parts with equivalent electrical performance but different package designations (TO-236AB/SOT-23-3), suitable for designs permitting package substitution.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) [A]	Vce Breakdown (Max) [V]	Power (Max) [mW]	Frequency [MHz]	Package	Product Status
CPH3144-TL-E	onsemi	2	30	900	440	3-CPH	Active
CPH3115-TL-E	onsemi	1.5	30	900	450	3-CPH	Obsolete
2SAR512RTL	Rohm Semiconductor	2	30	1000	430	TSMT3	Active
2SB1706TL	Rohm Semiconductor	2	30	500	280	TSMT3	Active
PBSS4032PT,215	Nexperia USA Inc.	2.4	30	1100	160	TO-236AB	Active
PBSS5230T,215	Nexperia USA Inc.	2	30	480	200	TO-236AB	Active
PBSS5240T,215	Nexperia USA Inc.	2	40	480	200	TO-236AB	Active

Engineering Selection Recommendations

Recommended Primary Substitutes (Active Status, Same Package Family):

The 2SAR512RTL (Rohm Semiconductor) is the preferred substitute for the CPH3144-TL-E. This part maintains identical maximum collector current (2 A) and collector-emitter breakdown voltage (30 V) specifications. The 2SAR512RTL provides superior power dissipation capability (1000 mW versus 900 mW) and comparable transition frequency (430 MHz versus 440 MHz). Both parts are RoHS3 compliant with MSL 1 rating and Active product status. The TSMT3 package is mechanically compatible with the 3-CPH package family for surface mount applications.

Secondary Substitutes (Active Status, Alternative Package):

The PBSS5230T,215 (Nexperia USA Inc.) provides functional equivalence with identical electrical specifications (2 A, 30 V, 200 MHz transition frequency). This part features AEC-Q100 automotive qualification and is available in TO-236AB (SOT-23-3) package. The PBSS5240T,215 offers enhanced voltage rating (40 V) with the same current and power characteristics, suitable for applications requiring higher voltage margin. Both Nexperia parts are Active status with RoHS3 compliance and MSL 1 rating.

Not Recommended:

The CPH3115-TL-E carries Obsolete product status and reduced maximum collector current (1.5 A), making it unsuitable for designs requiring the full 2 A specification of the CPH3144-TL-E.

The 2SB1706TL exhibits significantly reduced power dissipation (500 mW) and transition frequency (280 MHz), limiting its application to low-frequency, low-power circuit designs only.

Frequently Asked Questions (FAQ)

Q: Can the CPH3115-TL-E replace the CPH3144-TL-E?

A: No. The CPH3115-TL-E has a maximum collector current rating of 1.5 A, which is insufficient for applications requiring the full 2 A specification of the CPH3144-TL-E. Additionally, the CPH3115-TL-E carries Obsolete product status.

Q: What is the primary difference between the 2SAR512RTL and the CPH3144-TL-E?

A: Both parts share identical electrical specifications (2 A, 30 V, PNP type). The primary difference is the package designation: 2SAR512RTL uses TSMT3 packaging while CPH3144-TL-E uses 3-CPH packaging. The 2SAR512RTL provides higher power dissipation capability (1000 mW versus 900 mW).

Q: Are the Nexperia PBSS5230T,215 and PBSS5240T,215 parts interchangeable with the CPH3144-TL-E?

A: Both Nexperia parts are electrically compatible with the CPH3144-TL-E for applications where package substitution is permitted. The PBSS5230T,215 maintains the 30 V voltage rating, while the PBSS5240T,215 provides a higher 40 V rating. Both use TO-236AB (SOT-23-3) package instead of 3-CPH. Design layout and PCB footprint modifications are required for package substitution.

Q: Does the 2SB1706TL provide equivalent performance to the CPH3144-TL-E?

A: The 2SB1706TL meets the current (2 A) and voltage (30 V) specifications but exhibits significantly reduced power dissipation (500 mW versus 900 mW) and transition frequency (280 MHz versus 440 MHz). This part is suitable only for low-frequency, low-power applications and is not recommended as a general substitute.

Q: What compliance certifications are maintained across all substitute parts?

A: All recommended substitute parts maintain RoHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status, matching the CPH3144-TL-E compliance profile. The Nexperia parts (PBSS4032PT,215, PBSS5230T,215, PBSS5240T,215) additionally carry AEC-Q100 automotive qualification.

Q: Can I use the PBSS4032PT,215 as a substitute if my application requires higher current capability?

A: Yes. The PBSS4032PT,215 provides enhanced maximum collector current (2.4 A) and power dissipation (1100 mW) compared to the CPH3144-TL-E (2 A, 900 mW). However, the transition frequency is significantly lower (160 MHz versus 440 MHz), making it unsuitable for high-frequency applications. This part is recommended only for low-frequency designs where the higher current capability provides design margin.

Q: What are the package compatibility considerations for substitution?

A: The CPH3144-TL-E uses 3-CPH package. Direct package-compatible substitutes include CPH3115-TL-E and 2SAR512RTL (TSMT3 package). Alternative package substitutes (PBSS series using TO-236AB/SOT-23-3) require PCB layout and footprint modifications. Verify mechanical compatibility with your PCB design before implementation.

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