MCH3375-TL-W-Z Equivalent & Substitute Parts

Part Overview

The MCH3375-TL-W-Z is a P-Channel MOSFET rated for 30V operation with 1.6A continuous drain current in a compact SC-70FL surface mount package. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and production continuity. The substitute part maintains core electrical specifications while offering improved availability and active product status.

Substiute Parts

MCH3375-TL-W-Z

onsemiIn Stock: 1077MCH3375-TL-W-Z Datasheet

Current PartRFQ

NTS4173PT1G

onsemiIn Stock: 17148NTS4173PT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCH3375-TL-W-Z with the NTS4173PT1G is based on the following electrical and mechanical compatibility criteria:

Electrical Compatibility Parameters:

• Both devices are P-Channel MOSFETs with identical 30V Drain to Source Voltage (Vdss) rating
• Both support continuous drain current operation within acceptable ranges for the application envelope (1.6A vs. 1.2A)
• Gate to Source Voltage (Vgs Max) specifications are compatible: MCH3375-TL-W-Z at ±20V and NTS4173PT1G at ±12V, with the substitute operating within the original device's voltage envelope
• Drive voltage characteristics at both 4V and 10V operating points are specified for both devices

Mechanical Compatibility Parameters:

• Both devices utilize SC-70 series surface mount packaging (SC-70FL and SC-70-3/SOT323 are pin-compatible variants)
• Both maintain identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited)

Compliance and Regulatory Alignment:

• Both devices are ROHS3 Compliant
• Both are REACH Unaffected
• Both carry identical ECCN classification (EAR99)

The NTS4173PT1G represents an active product with superior availability (17,100 units in stock versus 1,038 units for the obsolete MCH3375-TL-W-Z).

Parameter Comparison

Engineering Selection Recommendations

The NTS4173PT1G is the designated manufacturer substitute for the obsolete MCH3375-TL-W-Z. Selection of this substitute is appropriate when the following conditions are met:

Application Current Requirements: The continuous drain current specification of 1.2A for the NTS4173PT1G must satisfy the maximum sustained current demand of the circuit. Applications requiring continuous currents exceeding 1.2A require alternative evaluation.

Gate Voltage Operating Range: The NTS4173PT1G Vgs (Max) specification of ±12V is lower than the MCH3375-TL-W-Z at ±20V. Gate drive circuits must operate within the ±12V envelope to ensure reliable device operation.

Regulatory and Compliance Alignment: Both devices maintain identical ROHS3 compliance, REACH unaffected status, and MSL ratings, ensuring no additional qualification or documentation requirements for substitution in existing designs.

Availability and Supply Chain: The NTS4173PT1G offers significantly higher inventory availability (17,100 units) compared to the obsolete MCH3375-TL-W-Z (1,038 units), supporting production continuity and long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can the NTS4173PT1G directly replace the MCH3375-TL-W-Z in existing PCB layouts?

A: Yes. Both devices use pin-compatible SC-70 series surface mount packages (SC-70FL and SC-70-3/SOT323). PCB footprints designed for the MCH3375-TL-W-Z accommodate the NTS4173PT1G without layout modification.

Q: What is the primary electrical difference between these two devices?

A: The NTS4173PT1G has a lower continuous drain current rating (1.2A versus 1.6A) and a lower maximum gate-source voltage specification (±12V versus ±20V). Applications must operate within these reduced specifications.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both devices are ROHS3 compliant, REACH unaffected, and carry identical EAR99 ECCN classification. No additional compliance documentation is required for substitution.

Q: Why is the MCH3375-TL-W-Z classified as obsolete?

A: The MCH3375-TL-W-Z has reached end-of-life status with onsemi. The NTS4173PT1G represents the active product line continuation with equivalent functionality and improved availability.

Q: What should be verified before implementing this substitution in production?

A: Confirm that the application's maximum continuous drain current does not exceed 1.2A and that gate drive voltages remain within the ±12V specification. Thermal performance should be evaluated given the different power dissipation characteristics.

Q: Are the RDS(on) characteristics equivalent between the two devices?

A: Both devices specify RDS(on) at 10V gate drive. The NTS4173PT1G specifies 150mOhm @ 1.2A, 10V. Verify that on-resistance performance meets circuit requirements at the actual operating current and gate voltage of your application.