PMF280UN,115 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The PMF280UN,115 is an N-Channel MOSFET manufactured by NXP USA Inc., designed for surface mount applications in the SC-70 package. This device operates at 20V drain-to-source voltage with a continuous drain current of 1.02A and is rated for 560mW power dissipation. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. Substitute parts must maintain electrical compatibility across voltage ratings, current handling, and thermal characteristics while accommodating different package geometries.

Substiute Parts

PMF280UN,115

NXP USA Inc.In Stock: 21414PMF280UN,115 Datasheet

Current PartRFQ

PMZ290UNE2YL

Nexperia USA Inc.In Stock: 141844PMZ290UNE2YL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PMF280UN,115 is based on the following electrical and mechanical criteria:

Electrical Compatibility Requirements:

• Drain-to-source voltage (Vdss) must equal or exceed 20V
• Continuous drain current (Id) must meet or exceed 1.02A at 25°C
• On-state resistance (Rds On) must not exceed 340mOhm at the specified gate voltage
• Gate threshold voltage (Vgs(th)) must remain within acceptable switching parameters
• Operating temperature range must span -55°C to 150°C

Mechanical Compatibility Requirements:

• Surface mount technology with compatible lead-free solder process
• Package footprint must accommodate PCB layout constraints
• Moisture sensitivity level (MSL) classification must be 1 or equivalent

The PMZ290UNE2YL qualifies as a direct electrical substitute based on these parameters. Both devices share identical Vdss (20V), compatible current ratings (1.2A vs. 1.02A), superior on-state resistance (320mOhm vs. 340mOhm), and matching temperature ranges. Package differences (SOT-883 vs. SC-70) require PCB layout verification but do not affect electrical function.

Parameter Comparison

Engineering Selection Recommendations

The PMZ290UNE2YL is electrically qualified as a substitute for the obsolete PMF280UN,115 based on the following factors:

Electrical Performance: The substitute device exceeds the original specification in continuous drain current (1.2A vs. 1.02A) and provides lower on-state resistance (320mOhm vs. 340mOhm), resulting in reduced power dissipation and improved thermal performance. Gate threshold voltage is slightly lower (0.95V vs. 1V), which remains within acceptable switching margins for standard gate drive circuits.

Regulatory Compliance: Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and safety standards. Moisture sensitivity classification (MSL 1) is identical, requiring no changes to storage or handling procedures.

Product Status: The substitute part is classified as active, ensuring long-term availability and continued manufacturing support. The original part's obsolete status necessitates this transition.

Package Consideration: The PMZ290UNE2YL uses SOT-883 packaging versus the original SC-70. While both are surface mount technologies with similar footprint dimensions, PCB layout verification is required to confirm pad compatibility and trace routing feasibility in the target application.

Frequently Asked Questions (FAQ)

Q: Can the PMZ290UNE2YL be used as a direct pin-for-pin replacement for the PMF280UN,115?

A: Both devices are N-Channel MOSFETs with identical pin configurations (gate, drain, source). However, the package footprints differ (SOT-883 vs. SC-70). Physical PCB layout modification may be necessary. Electrical function is fully compatible.

Q: What are the key electrical differences between these two parts?

A: The PMZ290UNE2YL provides higher continuous drain current (1.2A vs. 1.02A), lower on-state resistance (320mOhm vs. 340mOhm), and slightly lower gate threshold voltage (0.95V vs. 1V). These differences favor the substitute part, resulting in improved performance and reduced power dissipation.

Q: Are there any thermal performance differences?

A: The PMZ290UNE2YL is rated for higher power dissipation under junction temperature conditions (5.43W Tc vs. 560mW Tc for the original). This indicates superior thermal handling capability, though both devices operate across the same temperature range (-55°C to 150°C).

Q: Do both parts require the same gate drive voltage?

A: Yes. Both devices accept gate voltages up to ±8V maximum and operate with standard logic-level gate drive circuits. The slightly lower threshold voltage of the substitute part does not affect compatibility with existing drive circuitry.

Q: What packaging considerations should be addressed during substitution?

A: The original PMF280UN,115 uses SC-70 (SOT-323) packaging, while the PMZ290UNE2YL uses SOT-883 packaging. Verify that the new package footprint fits within available PCB space and that solder pad dimensions are compatible with existing assembly equipment and processes.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity classification. No changes to procurement, storage, or handling procedures are required.

Q: Why is the original part obsolete?

A: The PMF280UN,115 is classified as obsolete by the manufacturer. The PMZ290UNE2YL represents the active equivalent in the product line, ensuring continued availability and manufacturing support for new designs and production continuity.