BDP949E6327HTSA1 Equivalent & Substitute Parts

Part Overview

The BDP949E6327HTSA1 is an NPN bipolar junction transistor manufactured by Infineon Technologies, rated for 60V collector-emitter breakdown voltage and 3A maximum collector current. This surface mount device in SOT-223-4 package is designed for general-purpose switching and amplification applications requiring moderate current handling at moderate voltage levels.

The BDP949E6327HTSA1 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	60	V
Current - Collector (Ic) (Max)	3	A
Power - Max	5	W
Frequency - Transition	100	MHz
Vce Saturation (Max) @ Ib, Ic	500mV @ 200mA, 2A	—
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 500mA, 1V	—
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-261-4, TO-261AA	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BDP949E6327HTSA1 are selected based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

Transistor Type: NPN (required)
Voltage - Collector Emitter Breakdown (Max): 60V or higher (required)
Current - Collector (Ic) (Max): 3A or higher (required)
Mounting Type: Surface Mount (required)
Package / Case: TO-261-4, TO-261AA (required)

Secondary Compatibility Factors:

Frequency - Transition: 100MHz or higher (preferred for switching performance)
Vce Saturation: Lower values indicate better saturation characteristics
DC Current Gain (hFE): Minimum 100 at specified conditions (preferred)
Operating Temperature: 150°C maximum junction temperature (required)
Moisture Sensitivity Level: MSL 1 (required)

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (60V, 3A): Parts meeting or exceeding all primary electrical specifications with 3A or greater collector current and 60V breakdown voltage.

Category B - Functional Alternatives (50V-60V, 1A-6A): Parts with voltage or current ratings that differ from the main part but remain functionally compatible within specific application contexts. These require design verification for the target application.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) A	Vce(br) V	Power W	fT MHz	Vce Sat mV	hFE Min	Status	RoHS
BDP949E6327HTSA1	Infineon	3	60	5	100	500	100	Obsolete	—
2STN1360	STMicroelectronics	3	60	1.6	130	500	160	Active	ROHS3
2STN1550	STMicroelectronics	5	50	1.6	—	450	135	Active	ROHS3
BCP55-10,115	Nexperia USA Inc.	1	60	1.35	180	500	63	Active	ROHS3
BCP55TA	Diodes Incorporated	1	60	2	150	500	40	Active	ROHS3
DNLS350E-13	Diodes Incorporated	3	50	1	100	290	100	Active	ROHS3
FZT491TA	Diodes Incorporated	1	60	2	150	500	100	Active	ROHS3
FZT651QTA	Diodes Incorporated	3	60	3	175	600	100	Active	ROHS3
FZT651TA	Diodes Incorporated	3	60	2	175	600	100	Active	ROHS3
FZT651TC	Diodes Incorporated	3	60	2	175	600	100	Active	ROHS3
FZT851TA	Diodes Incorporated	6	60	3	130	375	100	Active	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents):

The following parts satisfy all primary electrical and mechanical requirements of the BDP949E6327HTSA1:

FZT651TC (Diodes Incorporated): Matches 60V, 3A specifications with 175MHz transition frequency. Active product status with ROHS3 compliance. Tape & Reel packaging available.
FZT651TA (Diodes Incorporated): Matches 60V, 3A specifications with 175MHz transition frequency. Active product status with ROHS3 compliance. Cut Tape packaging available.
FZT651QTA (Diodes Incorporated): Matches 60V, 3A specifications with 175MHz transition frequency and AEC-Q101 automotive qualification. Active product status with ROHS3 compliance.
2STN1360 (STMicroelectronics): Matches 60V, 3A specifications with 130MHz transition frequency. Active product status with ROHS3 compliance. Higher DC current gain (160 min) than main part.

Secondary Substitutes (Functional Alternatives):

FZT851TA (Diodes Incorporated): Exceeds current rating at 6A with 60V breakdown voltage. Suitable for applications requiring higher current capacity. Active product status with ROHS3 compliance.
DNLS350E-13 (Diodes Incorporated): Matches 3A current with 50V breakdown voltage. Lower saturation voltage (290mV) provides improved switching efficiency. Active product status with ROHS3 compliance.
2STN1550 (STMicroelectronics): Exceeds current rating at 5A with 50V breakdown voltage. Lower saturation voltage (450mV) provides improved switching characteristics. Active product status with ROHS3 compliance.

Limited Current Substitutes (1A Devices):

BCP55-10,115 (Nexperia USA Inc.): Reduced current rating (1A) limits applicability to lower-current designs. 60V breakdown voltage maintained. Active product status with ROHS3 compliance.
FZT491TA (Diodes Incorporated): Reduced current rating (1A) limits applicability to lower-current designs. 60V breakdown voltage maintained. Active product status with ROHS3 compliance.
BCP55TA (Diodes Incorporated): Reduced current rating (1A) limits applicability to lower-current designs. 60V breakdown voltage maintained. Extended operating temperature range (-55°C to 150°C). Active product status with ROHS3 compliance.

All recommended substitutes are active products with ROHS3 compliance, ensuring long-term availability and regulatory conformance.

Frequently Asked Questions (FAQ)

Q1: Can FZT651TC directly replace BDP949E6327HTSA1 in all applications?

A: FZT651TC meets the primary electrical specifications (60V, 3A, NPN, SOT-223 package). Both devices share identical voltage and current ratings, operating temperature limits, and package form factor. Substitution is valid for applications where the main part specifications are the design requirement. Verify saturation voltage characteristics (FZT651TC: 600mV vs. BDP949E6327HTSA1: 500mV) for switching-critical applications.

Q2: What is the difference between FZT651TA, FZT651TC, and FZT651QTA?

A: All three variants share identical electrical specifications (60V, 3A, 175MHz). Differences are in packaging format and qualification: FZT651TA is Cut Tape, FZT651TC is Tape & Reel, and FZT651QTA includes AEC-Q101 automotive qualification. Select based on packaging requirements and application grade.

Q3: Why is 2STN1360 listed as a substitute if it has lower power rating (1.6W vs. 5W)?

A: 2STN1360 meets all primary electrical requirements (60V, 3A, NPN, SOT-223). Power rating differences reflect thermal design variations between manufacturers. For applications operating within the 3A current specification, the lower power rating does not prevent functional substitution. Thermal analysis of the target application determines suitability.

Q4: Can I use FZT851TA (6A) instead of BDP949E6327HTSA1 (3A)?

A: FZT851TA exceeds the current specification (6A vs. 3A) while maintaining 60V breakdown voltage. This substitution is valid for applications requiring higher current capacity. The device will operate safely at 3A or lower. No design modification is required for current-limited applications.

Q5: Is DNLS350E-13 suitable for 60V applications?

A: DNLS350E-13 is rated for 50V breakdown voltage, not 60V. This device is suitable only for applications where the maximum operating voltage does not exceed 50V. For designs requiring 60V operation, select substitutes with 60V or higher breakdown voltage rating.

Q6: What does "Active" product status mean for substitutes?

A: Active status indicates the manufacturer currently produces and supports the part. Active products have established supply chains, ongoing quality control, and long-term availability. The BDP949E6327HTSA1 is obsolete, making active substitutes essential for new designs and ongoing production.

Q7: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts carry ROHS3 compliance certification. The main part (BDP949E6327HTSA1) does not specify RoHS status. ROHS3 compliance ensures the substitutes meet current environmental and regulatory requirements for electronic components.

Q8: Can I use BCP55-10,115 (1A) in a design requiring 3A?

A: No. BCP55-10,115 is rated for maximum 1A collector current. Using this device in a 3A application exceeds its specification and will result in device failure or degraded performance. Select substitutes with current ratings equal to or exceeding the application requirement.

Q9: What is the significance of transition frequency (fT) differences?

A: Transition frequency indicates the maximum frequency at which the transistor maintains useful gain. BDP949E6327HTSA1 operates at 100MHz; substitutes range from 100MHz to 180MHz. Higher transition frequency provides improved high-frequency performance. For DC or low-frequency switching applications, transition frequency differences are not critical.

Q10: How do I select between multiple 60V, 3A substitutes?

A: Evaluate based on: (1) Product availability and lead time; (2) Packaging format (Cut Tape, Tape & Reel, or Digi-Reel); (3) Saturation voltage requirements for switching efficiency; (4) Transition frequency for high-frequency applications; (5) Automotive qualification (AEC-Q101) if required; (6) Cost and supplier preference. FZT651TC, FZT651TA, and 2STN1360 are primary equivalents meeting all specifications.

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