BCP49E6327HTSA1 Equivalent & Substitute Parts

Part Overview

The BCP49E6327HTSA1 is an NPN Darlington bipolar junction transistor manufactured by Infineon Technologies, designed for surface mount applications in the SOT-223-4 package. This component operates at a maximum collector current of 500 mA with a 60 V collector-emitter breakdown voltage and delivers 1.5 W maximum power dissipation. The device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity.

Substiute Parts

BCP49E6327HTSA1

Infineon TechnologiesIn Stock: 1134BCP49E6327HTSA1 Datasheet

Current PartRFQ

BCP49H6419XTMA1

Infineon TechnologiesIn Stock: 872BCP49H6419XTMA1 Datasheet

Parametric EquivalentRFQ

BSP51,115

Nexperia USA Inc.In Stock: 2181BSP51,115 Datasheet

MFR RecommendedRFQ

PZTA28

onsemiIn Stock: 6396PZTA28 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BCP49E6327HTSA1 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor type must be NPN - Darlington configuration
• Collector-emitter breakdown voltage must be greater than or equal to 60 V
• Maximum collector current must be greater than or equal to 500 mA
• DC current gain (hFE) must support the application's base drive requirements
• Transition frequency must support the application's switching speed requirements
• Vce saturation characteristics must be compatible with circuit design

Mechanical Compatibility Criteria:

• Mounting type must be Surface Mount
• Package must be compatible with TO-261-4, TO-261AA, or equivalent SOT-223 footprints
• Moisture sensitivity level must be MSL 1 or lower

Compliance Criteria:

• RoHS3 compliance preferred for new designs
• REACH compliance maintained across all substitutes

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications) and manufacturer-recommended alternatives (enhanced or modified specifications suitable for direct replacement).

Parameter Comparison

Engineering Selection Recommendations

BCP49H6419XTMA1 (Parametric Equivalent)

The BCP49H6419XTMA1 is a parametric equivalent to the BCP49E6327HTSA1, offering identical electrical specifications across all critical parameters: 500 mA collector current, 60 V breakdown voltage, 10000 hFE minimum gain, and 200 MHz transition frequency. Both devices share the same base product number (BCP49) and are manufactured by Infineon Technologies. The BCP49H6419XTMA1 provides ROHS3 compliance, addressing regulatory requirements for new designs. This substitute is suitable for direct replacement in applications where the original part is no longer available.

BSP51,115 (Manufacturer-Recommended Alternative)

The BSP51,115, manufactured by Nexperia USA Inc., is designated as a manufacturer-recommended substitute. This device exceeds the original specification with 1 A maximum collector current (versus 500 mA) and maintains the 60 V breakdown voltage. The BSP51,115 is classified as Active product status with AEC-Q101 automotive qualification, providing long-term availability and supply chain stability. The device operates at 200 MHz transition frequency, matching the original part. Vce saturation is higher at 1.3 V, and DC current gain is lower at 2000 hFE, requiring circuit evaluation for applications with tight base drive or saturation requirements. This substitute is recommended for new designs requiring automotive-grade components.

PZTA28 (Manufacturer-Recommended Alternative)

The PZTA28, manufactured by onsemi, is a manufacturer-recommended substitute offering enhanced voltage rating at 80 V breakdown (versus 60 V) and increased collector current capability at 800 mA. This device is Active product status with ROHS3 compliance and extended operating temperature range (-55°C to 150°C). The PZTA28 maintains 10000 hFE minimum gain at 100 mA, matching the original specification. Transition frequency is reduced to 125 MHz, and Vce saturation is higher at 1.5 V. This substitute is suitable for applications requiring higher voltage margin or increased current capacity, with circuit evaluation required for frequency-dependent applications.

Frequently Asked Questions (FAQ)

Q: Can the BCP49H6419XTMA1 be used as a direct replacement for the BCP49E6327HTSA1?

A: Yes. The BCP49H6419XTMA1 is a parametric equivalent with identical electrical specifications and the same base product number. Both devices are NPN Darlington transistors with 500 mA collector current, 60 V breakdown voltage, 10000 hFE minimum gain, and 200 MHz transition frequency. The footprint and package are compatible (PG-SOT223-4 / SOT-223). Direct substitution is supported without circuit modification.

Q: What are the key differences between the BSP51,115 and the original BCP49E6327HTSA1?

A: The BSP51,115 offers higher collector current (1 A versus 500 mA) and is Active product status with automotive qualification. However, Vce saturation is higher (1.3 V versus 1 V) and DC current gain is lower (2000 hFE versus 10000 hFE). Transition frequency remains at 200 MHz. Applications requiring tight saturation control or high base drive efficiency should be evaluated before substitution.

Q: Is the PZTA28 suitable for all applications using the BCP49E6327HTSA1?

A: The PZTA28 is suitable for applications where higher voltage rating (80 V versus 60 V) and increased collector current (800 mA versus 500 mA) are beneficial or acceptable. However, transition frequency is reduced to 125 MHz, making this substitute unsuitable for applications requiring 200 MHz switching speed. Vce saturation is also higher at 1.5 V. Circuit evaluation is required for frequency-dependent designs.

Q: Are all substitute parts RoHS3 compliant?

A: The BCP49H6419XTMA1, BSP51,115, and PZTA28 are all ROHS3 compliant. The original BCP49E6327HTSA1 does not specify RoHS status. All substitutes maintain REACH compliance.

Q: What is the moisture sensitivity level for these components?

A: All listed components, including the original BCP49E6327HTSA1 and all substitutes, have Moisture Sensitivity Level (MSL) 1 with unlimited shelf life. No special moisture control measures are required during storage or handling.

Q: Can the BSP51,115 and PZTA28 be used interchangeably?

A: No. While both are NPN Darlington substitutes, they have different electrical characteristics. The BSP51,115 has lower collector current (1 A versus 800 mA for PZTA28) and lower breakdown voltage (60 V versus 80 V). The PZTA28 has lower transition frequency (125 MHz versus 200 MHz). Selection depends on specific application requirements for voltage, current, and switching speed.

Q: What packaging considerations apply to these substitutes?

A: All substitutes use compatible surface mount packages: TO-261-4, TO-261AA, or SOT-223 variants. The BCP49H6419XTMA1 uses PG-SOT223-4, the BSP51,115 uses SOT-223, and the PZTA28 uses SOT-223-4. These packages are mechanically and electrically compatible with the original BCP49E6327HTSA1 footprint.