DPLS320A-7 Equivalent & Substitute Parts

Part Overview

The DPLS320A-7 is a Surface Mount PNP Bipolar Junction Transistor (BJT) manufactured by Diodes Incorporated, rated for 20V collector-emitter breakdown voltage and 2A maximum collector current. This component is classified as Obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement continuity. The part is housed in a SOT-23-3 (TO-236-3) package and complies with RoHS3 and REACH regulations.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	2	A
Voltage - Collector Emitter Breakdown (Max)	20	V
Power - Max	600	mW
Frequency - Transition	215	MHz
Operating Temperature Range	-55 to 150	°C
Package / Case	SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the DPLS320A-7 is determined by the following critical parameters:

Primary Substitution Criteria:

Transistor Type: PNP (mandatory match)
Voltage - Collector Emitter Breakdown (Max): 20V (minimum requirement)
Current - Collector (Ic) (Max): 2A (minimum requirement for full-current applications)
Package / Case: SOT-23-3 or equivalent footprint (TO-236-3, SC-59)
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C (minimum requirement)
RoHS3 Compliance: Required

Secondary Compatibility Factors:

DC Current Gain (hFE): 200 minimum @ 1A, 2V
Vce Saturation: Acceptable within design margin
Frequency - Transition: 100MHz minimum (reduced from 215MHz in main part)
Power Dissipation: 460mW minimum (reduced from 600mW in main part)

Substitute parts are grouped into two categories: Direct Equivalents (matching all primary criteria) and Functional Alternatives (meeting primary criteria with reduced secondary specifications).

Parameter Comparison

Parameter	DPLS320A-7	DSS5320T-7	FMMT718TA	PBSS5220T,215	PBSS5320T,215	NSS20200LT1G	PBSS5120T,215
Manufacturer	Diodes Inc.	Diodes Inc.	Diodes Inc.	Nexperia USA	Nexperia USA	onsemi	Nexperia USA
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Transistor Type	PNP	PNP	PNP	PNP	PNP	PNP	PNP
Current - Collector (Ic) (Max)	2 A	2 A	1.5 A	2 A	2 A	2 A	1 A
Voltage - Collector Emitter Breakdown (Max)	20 V	20 V	20 V	20 V	20 V	20 V	20 V
Vce Saturation (Max)	330mV @ 300mA, 3A	300mV @ 300mA, 3A	220mV @ 50mA, 1.5A	225mV @ 200mA, 2A	300mV @ 300mA, 3A	180mV @ 200mA, 2A	250mV @ 50mA, 1A
Current - Collector Cutoff (Max)	100nA	100nA	100nA	100nA	100nA	100nA	100nA
DC Current Gain (hFE) (Min)	200 @ 1A, 2V	200 @ 1A, 2V	300 @ 100mA, 2V	200 @ 1A, 2V	200 @ 1A, 2V	250 @ 500mA, 2V	250 @ 500mA, 2V
Power - Max	600 mW	600 mW	625 mW	480 mW	540 mW	460 mW	480 mW
Frequency - Transition	215 MHz	180 MHz	180 MHz	100 MHz	100 MHz	100 MHz	100 MHz
Operating Temperature Range	-55 to 150°C	-55 to 150°C	-55 to 150°C	150°C (Max)	150°C (Max)	-55 to 150°C	150°C (Max)
Package / Case	SOT-23-3	SOT-23-3	SOT-23-3	TO-236AB	TO-236AB	SOT-23-3	TO-236AB
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent - Recommended Primary Substitute:

DSS5320T-7 (Diodes Incorporated) is the optimal substitute for DPLS320A-7. This part maintains identical electrical specifications for collector current (2A), collector-emitter breakdown voltage (20V), and power dissipation (600mW). The transition frequency is reduced from 215MHz to 180MHz, which is acceptable for most applications not requiring the higher frequency performance of the original part. DSS5320T-7 is in Active product status with 12,863 units in stock, ensuring long-term availability. Both parts share the same SOT-23-3 package and comply with RoHS3 and REACH requirements.

Manufacturer-Recommended Alternatives:

FMMT718TA (Diodes Incorporated) is designated as a manufacturer-recommended substitute. This part operates at 1.5A maximum collector current (reduced from 2A) and provides superior DC current gain (300 @ 100mA, 2V versus 200 @ 1A, 2V). The transition frequency is 180MHz. FMMT718TA is suitable for applications where the 2A specification is not fully utilized. Product status is Active with 26,100 units in stock.

NSS20200LT1G (onsemi) is a manufacturer-recommended alternative maintaining the full 2A collector current specification and 20V breakdown voltage. This part features the lowest Vce saturation (180mV @ 200mA, 2A) among all substitutes, indicating superior switching performance. Transition frequency is 100MHz. Operating temperature range is -55°C to 150°C, matching the original part. Product status is Active with 38,079 units in stock.

Cross-Manufacturer Alternatives:

PBSS5220T,215 and PBSS5320T,215 (Nexperia USA Inc.) are functionally compatible alternatives. Both maintain 2A collector current and 20V breakdown voltage specifications. These parts operate at 100MHz transition frequency and are available in TO-236AB package variant. Operating temperature maximum is specified as 150°C without lower limit documentation. Both parts are in Active status with adequate inventory (3,982 and 8,634 units respectively).

Limited-Current Alternative:

PBSS5120T,215 (Nexperia USA Inc.) is suitable only for applications requiring maximum 1A collector current. This part includes AEC-Q100 automotive qualification and is in Active status. This substitute is not appropriate for designs requiring the full 2A specification of DPLS320A-7.

Frequently Asked Questions (FAQ)

Q: Can DSS5320T-7 be used as a direct replacement for DPLS320A-7 in all applications?

A: DSS5320T-7 is electrically compatible for applications where transition frequency of 180MHz is acceptable. The reduction from 215MHz to 180MHz does not affect most general-purpose switching and amplification circuits. Verify transition frequency requirements in high-frequency applications before substitution.

Q: What is the primary difference between FMMT718TA and DSS5320T-7?

A: FMMT718TA is rated for 1.5A maximum collector current compared to DSS5320T-7 at 2A. FMMT718TA provides higher DC current gain (300 versus 200). Select FMMT718TA only if application current requirements do not exceed 1.5A. Both parts share identical 20V breakdown voltage and SOT-23-3 package.

Q: Are Nexperia PBSS5220T,215 and PBSS5320T,215 interchangeable with each other?

A: PBSS5220T,215 and PBSS5320T,215 are electrically equivalent for most applications. Both maintain 2A collector current and 20V breakdown voltage. PBSS5320T,215 exhibits slightly higher power dissipation (540mW versus 480mW). Both are packaged in TO-236AB variant of the SOT-23-3 footprint.

Q: What is the significance of the operating temperature range difference between parts?

A: DPLS320A-7, DSS5320T-7, FMMT718TA, and NSS20200LT1G specify -55°C to 150°C operating range. PBSS5220T,215, PBSS5320T,215, and PBSS5120T,215 specify 150°C maximum without documented lower limit. For applications requiring operation below 0°C, select substitutes with documented -55°C minimum specification.

Q: Can NSS20200LT1G replace DPLS320A-7 in high-speed switching applications?

A: NSS20200LT1G operates at 100MHz transition frequency compared to DPLS320A-7 at 215MHz. This part is suitable for general-purpose switching but not for applications requiring the higher frequency performance of the original part. NSS20200LT1G provides superior saturation characteristics (180mV @ 200mA, 2A), beneficial for low-loss switching designs.

Q: Is PBSS5120T,215 suitable as a substitute for DPLS320A-7?

A: PBSS5120T,215 is not recommended as a direct substitute due to reduced maximum collector current (1A versus 2A). This part is suitable only for applications where current requirements do not exceed 1A. PBSS5120T,215 includes AEC-Q100 automotive qualification, making it appropriate for automotive-grade designs with lower current specifications.

Q: What packaging considerations apply when substituting DPLS320A-7?

A: DPLS320A-7 is specified in SOT-23-3 package. DSS5320T-7, FMMT718TA, and NSS20200LT1G maintain SOT-23-3 packaging. PBSS5220T,215, PBSS5320T,215, and PBSS5120T,215 are supplied in TO-236AB variant, which is mechanically and electrically compatible with SOT-23-3 footprints. Verify PCB layout compatibility before design implementation.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed (DSS5320T-7, FMMT718TA, PBSS5220T,215, PBSS5320T,215, NSS20200LT1G, PBSS5120T,215) are RoHS3 compliant and REACH unaffected. All parts carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Which substitute offers the best availability?

A: NSS20200LT1G (onsemi) offers the highest inventory level at 38,079 units in stock. FMMT718TA (Diodes Incorporated) provides 26,100 units. DSS5320T-7 (Diodes Incorporated) provides 12,863 units. All substitutes maintain Active product status, ensuring continued availability and support.

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