MCH6342-TL-W Equivalent & Substitute Parts

Part Overview

The MCH6342-TL-W is a P-Channel MOSFET manufactured by onsemi, rated for 30V drain-to-source voltage with 4.5A continuous drain current at 25°C. This device is packaged in a 6-TSSOP (SC-88FL/MCPH6) surface mount configuration and is designed for applications requiring P-channel switching and amplification in compact form factors.

The MCH6342-TL-W carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

MCH6342-TL-W

onsemiIn Stock: 3330MCH6342-TL-W Datasheet

Current PartRFQ

RRL025P03TR

Rohm SemiconductorIn Stock: 35458RRL025P03TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCH6342-TL-W is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• FET Type: P-Channel topology required
• Drain to Source Voltage (Vdss): Minimum 30V rating
• Current - Continuous Drain (Id): Minimum 2.5A at 25°C (lower current ratings acceptable for reduced-load applications)
• On-State Resistance (Rds On): Maximum 75mOhm (slightly higher resistance acceptable within thermal constraints)
• Power Dissipation: Minimum 320mW (lower power ratings acceptable for reduced-load applications)
• Operating Temperature: Minimum 150°C junction temperature

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount required
• Package Configuration: 6-pin SMD packages with compatible pinout and footprint geometry

The RRL025P03TR from Rohm Semiconductor meets these substitution criteria. While the RRL025P03TR exhibits lower continuous drain current (2.5A versus 4.5A) and reduced power dissipation (320mW versus 1.5W), it maintains electrical compatibility through equivalent Vdss rating, acceptable Rds On specification, and compatible surface mount packaging. This substitute is suitable for applications where the reduced current and power ratings do not exceed system requirements.

Parameter Comparison

Engineering Selection Recommendations

MCH6342-TL-W (Primary Part): The MCH6342-TL-W is classified as Obsolete. While inventory remains available (3300 pcs), this product status indicates that onsemi has discontinued active support and future availability cannot be guaranteed. Selection of this part is appropriate only for legacy system maintenance or when existing design validation specifically requires this component.

RRL025P03TR (Substitute Part): The RRL025P03TR is classified as Not For New Designs. This status indicates that Rohm Semiconductor does not recommend this part for new product development. However, this substitute maintains full ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the primary part.

Selection of RRL025P03TR is appropriate for:

• Replacement in existing systems where MCH6342-TL-W supply is exhausted
• Applications where continuous drain current requirements do not exceed 2.5A
• Applications where power dissipation does not exceed 320mW
• Designs where the higher gate threshold voltage (2.5V versus 1.3V) and wider Vgs rating (±20V versus ±10V) are compatible with gate drive circuitry

Both parts maintain identical maximum junction temperature (150°C) and identical moisture sensitivity classification (MSL 1, Unlimited). Both are ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can the RRL025P03TR directly replace the MCH6342-TL-W in all applications?

A: No. The RRL025P03TR exhibits lower continuous drain current (2.5A versus 4.5A) and reduced power dissipation (320mW versus 1.5W). Substitution is valid only when application current and power requirements do not exceed the RRL025P03TR specifications. Circuit analysis is required to confirm compatibility with specific load conditions.

Q: Are the package footprints compatible between MCH6342-TL-W and RRL025P03TR?

A: Both parts are 6-pin surface mount devices. The MCH6342-TL-W uses SC-88FL/MCPH6 packaging (6-TSSOP, SOT-363), while the RRL025P03TR uses TUMT6 packaging (6-SMD, Flat Leads). Physical footprint compatibility must be verified against PCB layout specifications. Pin assignment and lead geometry may differ.

Q: What is the significance of the product status classifications?

A: MCH6342-TL-W is Obsolete, indicating onsemi has discontinued this part. RRL025P03TR is Not For New Designs, indicating Rohm Semiconductor does not recommend it for new product development. Both statuses reflect manufacturer lifecycle decisions. For new designs, consultation with component suppliers for current-generation P-channel MOSFET alternatives is recommended.

Q: How do the gate threshold voltage differences affect circuit design?

A: The MCH6342-TL-W has Vgs(th) of 1.3V @ 1mA, while the RRL025P03TR has Vgs(th) of 2.5V @ 1mA. This difference affects gate drive voltage requirements and switching behavior. Gate drive circuits must provide sufficient voltage margin above the threshold voltage for reliable operation. Existing gate drive designs may require adjustment.

Q: Are there regulatory or compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity classification (MSL 1, Unlimited). Both are assigned ECCN EAR99 classification. Regulatory and compliance posture is equivalent.

Q: What is the impact of the lower input capacitance in the RRL025P03TR?

A: The RRL025P03TR has lower input capacitance (480 pF @ 10V versus 650 pF @ 10V). Lower input capacitance reduces gate charge requirements and may improve switching speed. This characteristic is generally favorable for gate drive circuit design and power efficiency.