MCP718-TP Equivalent & Substitute Parts

Part Overview

The MCP718-TP is a Bipolar (BJT) Transistor, PNP type, manufactured by Micro Commercial Co. It is designed for surface mount applications with a maximum collector current of 6 A, collector-emitter breakdown voltage of 20 V, and maximum power dissipation of 1 W. The device operates across a temperature range of -55°C to 150°C and features a transition frequency of 150 MHz.

The MCP718-TP is classified as Obsolete. Identification of equivalent and substitute parts is necessary to support ongoing design requirements, system maintenance, and production continuity where original components are no longer available through standard distribution channels.

Substiute Parts

MCP718-TP

Micro Commercial CoIn Stock: 703MCP718-TP Datasheet

Current PartRFQ

PBSS5620PA,115

Nexperia USA Inc.In Stock: 4157PBSS5620PA,115 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCP718-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor Type: PNP
• Current - Collector (Ic) (Max): 6 A
• Voltage - Collector Emitter Breakdown (Max): 20 V
• Vce Saturation (Max): 350 mV
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The PBSS5620PA,115 manufactured by Nexperia USA Inc. meets all critical electrical parameters required for substitution. Both devices are PNP transistors with identical maximum collector current (6 A) and collector-emitter breakdown voltage (20 V). Both maintain the same saturation voltage specification (350 mV) and are surface mount components with equivalent environmental compliance ratings.

Parameter Comparison

Engineering Selection Recommendations

The PBSS5620PA,115 is a direct electrical substitute for the MCP718-TP. Both devices satisfy the core electrical requirements: 6 A maximum collector current, 20 V collector-emitter breakdown voltage, and 350 mV saturation voltage. Both are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental and regulatory compliance.

The PBSS5620PA,115 offers additional advantages in terms of product lifecycle status. As an Active product from Nexperia USA Inc., it provides assured long-term availability and supply chain continuity compared to the Obsolete MCP718-TP. The substitute device also provides higher maximum power dissipation (2.1 W versus 1 W), which offers design margin in thermal management applications.

Package differences exist between the two devices: the MCP718-TP uses a DFN2020-3 package, while the PBSS5620PA,115 uses a 3-HUSON (2x2) package. PCB layout modifications are required to accommodate the different package footprints. The transition frequency of the PBSS5620PA,115 (80 MHz) is lower than the MCP718-TP (150 MHz); applications requiring high-frequency switching performance must evaluate this parameter against specific circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the PBSS5620PA,115 be used as a direct replacement for the MCP718-TP in all applications?

A: The PBSS5620PA,115 meets all critical electrical parameters (collector current, breakdown voltage, and saturation voltage) required for substitution. However, PCB layout modifications are necessary due to different package footprints (DFN2020-3 versus 3-HUSON 2x2). Applications operating at frequencies above 80 MHz must evaluate the lower transition frequency of the substitute device.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution is determined by equivalence in the following parameters: Transistor Type (PNP), Maximum Collector Current (6 A), Collector-Emitter Breakdown Voltage (20 V), Saturation Voltage (350 mV), and Mounting Type (Surface Mount). Both devices meet these specifications.

Q: Are there compliance or regulatory differences between the MCP718-TP and PBSS5620PA,115?

A: Both devices are ROHS3 compliant and carry MSL 1 (Unlimited) ratings. No compliance or regulatory differences exist between the two parts.

Q: What is the impact of the different DC Current Gain (hFE) specifications?

A: The MCP718-TP specifies hFE of 300 minimum at 100 mA collector current, while the PBSS5620PA,115 specifies hFE of 190 minimum at 2 A collector current. These measurements are taken at different operating points. Circuit designs relying on specific gain characteristics at particular collector currents must verify compatibility with the substitute device's gain profile.

Q: Does the higher power rating of the PBSS5620PA,115 (2.1 W versus 1 W) affect circuit design?

A: The higher power rating of the substitute device provides additional thermal margin and does not negatively impact circuit design. Applications are not constrained by the higher rating; however, thermal management designs based on the 1 W specification of the original device remain valid for the substitute.

Q: What packaging considerations apply when substituting the MCP718-TP with PBSS5620PA,115?

A: The MCP718-TP uses a DFN2020-3 package while the PBSS5620PA,115 uses a 3-HUSON (2x2) package. These are physically different packages requiring distinct PCB footprints, solder pad layouts, and assembly processes. Design files and manufacturing documentation must be updated to reflect the new package geometry.