DPLS315E-13 Equivalent & Substitute Parts

Part Overview

The DPLS315E-13 is a PNP bipolar junction transistor manufactured by Diodes Incorporated, rated for 15 V collector-emitter breakdown voltage and 3 A maximum collector current in a surface mount SOT-23-3 package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and production continuity. Active alternatives with comparable or enhanced electrical characteristics are available from both Diodes Incorporated and onsemi.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) Max	3	A
Voltage - Collector Emitter Breakdown (Max)	15	V
Power - Max	1	W
Frequency - Transition	100	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-23-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the DPLS315E-13 is determined by the following critical electrical and mechanical parameters:

Direct Substitution Criteria:

Transistor type: PNP
Collector current rating: minimum 3 A
Collector-emitter breakdown voltage: minimum 15 V
Transition frequency: minimum 100 MHz
Operating temperature range: minimum -55°C to 150°C
Surface mount package compatibility
RoHS3 compliance

Direct Equivalent: The FZT788BTA from Diodes Incorporated meets all electrical specifications of the DPLS315E-13 with identical current, voltage, and frequency ratings. The FZT788BTA is in active production status and provides enhanced power dissipation (2 W versus 1 W), making it a pin-compatible direct replacement in SOT-223-3 packaging.

Similar Alternatives: The PZT2907AT1G and PZT2907AT3G from onsemi are functionally similar PNP transistors in SOT-223 packaging. These devices operate at higher voltage ratings (60 V) and higher transition frequency (200 MHz) but with reduced maximum collector current (600 mA). These parts are suitable for applications where the DPLS315E-13 current rating exceeds circuit requirements.

Parameter Comparison

Parameter	DPLS315E-13	FZT788BTA	PZT2907AT1G	PZT2907AT3G
Manufacturer	Diodes Incorporated	Diodes Incorporated	onsemi	onsemi
Product Status	Obsolete	Active	Active	Active
Transistor Type	PNP	PNP	PNP	PNP
Ic (Max)	3 A	3 A	600 mA	600 mA
Vce Breakdown (Max)	15 V	15 V	60 V	60 V
Vce Saturation (Max)	500 mV @ 50 mA, 3 A	500 mV @ 50 mA, 3 A	1.6 V @ 50 mA, 500 mA	1.6 V @ 50 mA, 500 mA
Power - Max	1 W	2 W	1.5 W	1.5 W
Frequency - Transition	100 MHz	100 MHz	200 MHz	200 MHz
Operating Temperature	-55 to 150 °C	-55 to 150 °C	-65 to 150 °C	-65 to 150 °C
Package / Case	SOT-23-3	SOT-223-3	SOT-223	SOT-223
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement: The FZT788BTA is the primary substitute for the DPLS315E-13. Both devices are manufactured by Diodes Incorporated, maintain identical electrical specifications for collector current, breakdown voltage, and transition frequency, and are RoHS3 compliant. The FZT788BTA is in active production with substantial inventory availability (52,300 pieces), ensuring long-term supply continuity. The increased power rating (2 W versus 1 W) provides additional thermal margin without affecting circuit functionality.

For Current-Limited Applications: The PZT2907AT1G and PZT2907AT3G are suitable alternatives when circuit requirements do not demand the full 3 A collector current capability. These onsemi devices provide higher voltage ratings (60 V) and faster transition frequency (200 MHz), making them appropriate for applications requiring enhanced voltage headroom or higher-frequency switching. Both variants are in active production status with RoHS3 compliance. Selection between PZT2907AT1G (Cut Tape packaging) and PZT2907AT3G (Tape & Reel packaging) depends on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the FZT788BTA directly replace the DPLS315E-13 without circuit modification?

A: Yes. The FZT788BTA provides identical electrical performance across all critical parameters: 3 A collector current, 15 V breakdown voltage, 100 MHz transition frequency, and -55°C to 150°C operating range. Both devices are PNP transistors in surface mount packages with RoHS3 compliance. The SOT-223-3 package of the FZT788BTA is physically compatible with SOT-23-3 footprints in most applications.

Q: What are the limitations of using PZT2907AT1G or PZT2907AT3G as substitutes?

A: The PZT2907 series devices are rated for maximum 600 mA collector current, which is 80% lower than the DPLS315E-13 specification of 3 A. These parts are suitable only for circuits where the actual operating collector current does not exceed 600 mA. The higher voltage rating (60 V) and transition frequency (200 MHz) do not compensate for reduced current capability in high-current applications.

Q: Are there packaging considerations when substituting these parts?

A: The DPLS315E-13 uses SOT-23-3 packaging, while the FZT788BTA uses SOT-223-3 and the PZT2907 series use SOT-223. These are distinct package outlines with different pin spacing and footprint dimensions. PCB layout modifications may be required. Verify footprint compatibility with your design before implementation.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. The FZT788BTA, PZT2907AT1G, and PZT2907AT3G are all RoHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity level). All parts carry EAR99 ECCN classification and REACH Unaffected status, matching the compliance profile of the DPLS315E-13.

Q: What is the difference between PZT2907AT1G and PZT2907AT3G?

A: Both parts are electrically identical PNP transistors with 60 V, 600 mA, and 200 MHz specifications. The primary difference is packaging format: PZT2907AT1G is supplied in Cut Tape (CT) and Digi-Reel format, while PZT2907AT3G is supplied in Tape & Reel (TR) format. Selection depends on procurement volume and assembly equipment compatibility.

Q: Why is the DPLS315E-13 classified as obsolete?

A: The DPLS315E-13 is no longer in active production. The FZT788BTA serves as the active production equivalent from Diodes Incorporated, offering improved specifications and guaranteed long-term availability.

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