SPN03N60C3 Equivalent & Substitute Parts

Part Overview

The SPN03N60C3 is an N-Channel MOSFET manufactured by Infineon Technologies, designed for surface mount applications in the CoolMOS™ series. This device features a 650V drain-to-source voltage rating with 700mA continuous drain current capability and is housed in a PG-SOT223-4 package. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

SPN03N60C3

Infineon TechnologiesIn Stock: 3171SPN03N60C3 Datasheet

Current PartRFQ

STN1HNK60

STMicroelectronicsIn Stock: 29293STN1HNK60 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPN03N60C3 is determined by the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: The substitute must support the application's maximum voltage requirement. The SPN03N60C3 operates at 650V Vdss. Substitutes with equal or higher voltage ratings are acceptable.

Current Handling Capability: The substitute must support the continuous drain current requirement of 700mA at the specified operating conditions. Substitutes with equal or higher current ratings are acceptable.

On-State Resistance (Rds On): The substitute's Rds On must not exceed the maximum specified value to ensure thermal performance and power dissipation remain within design limits.

Gate Threshold Voltage (Vgs(th)): The substitute must have compatible gate threshold voltage to ensure proper switching behavior with existing gate drive circuitry.

Package Compatibility: The substitute must be compatible with the PG-SOT223-4 surface mount package footprint and pin configuration.

Temperature Range: The substitute must support the full operating temperature range of -55°C to 150°C (TJ).

The STN1HNK60 meets these substitution criteria with the following considerations: lower Vdss rating (600V vs. 650V), lower continuous drain current (400mA vs. 700mA), and higher Rds On (8.5Ohm vs. 1.4Ohm). These differences require application-level verification to confirm suitability for the specific circuit design.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The SPN03N60C3 is classified as obsolete, while the STN1HNK60 is active. For new designs or production continuity, the active status of STN1HNK60 provides assured long-term availability and supply chain stability.

Compliance Status: The STN1HNK60 is ROHS3 compliant, whereas the SPN03N60C3 is RoHS non-compliant. Applications subject to RoHS regulations require the STN1HNK60 or equivalent compliant alternatives.

Electrical Parameter Derating: The STN1HNK60 exhibits lower voltage and current ratings compared to the SPN03N60C3. Circuit designs operating near the maximum ratings of the SPN03N60C3 must account for these reduced specifications. The higher Rds On of the STN1HNK60 results in increased power dissipation, requiring thermal management evaluation.

Package Compatibility: Both devices share compatible package designations (TO-261-4, TO-261AA), enabling direct footprint substitution on printed circuit boards.

Moisture Sensitivity: Both devices are classified as MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can the STN1HNK60 directly replace the SPN03N60C3 in all applications?

A: Direct replacement is not universal. The STN1HNK60 has lower voltage (600V vs. 650V) and current (400mA vs. 700mA) ratings. Applications operating within the STN1HNK60 specifications are compatible. Applications requiring the full 650V or 700mA capability of the SPN03N60C3 require alternative substitutes or circuit redesign.

Q: What is the impact of the higher Rds On value in the STN1HNK60?

A: The STN1HNK60 has an Rds On of 8.5Ohm compared to 1.4Ohm in the SPN03N60C3. Higher on-state resistance increases power dissipation (I²R losses) during conduction. Thermal analysis is required to confirm the STN1HNK60's power dissipation (3.3W max) is acceptable for the application's thermal environment.

Q: Are there package compatibility concerns?

A: Both devices use TO-261-4 and TO-261AA package designations, which are mechanically and electrically compatible. PCB footprints designed for the SPN03N60C3 accommodate the STN1HNK60 without modification.

Q: Does the lower gate charge of the STN1HNK60 affect gate drive design?

A: The STN1HNK60 has lower gate charge (10nC vs. 17nC), requiring less energy to switch. Existing gate drive circuits designed for the SPN03N60C3 will function with the STN1HNK60, though switching speed may increase slightly. Gate drive voltage compatibility (±20V vs. ±30V) must be verified.

Q: What compliance advantages does the STN1HNK60 offer?

A: The STN1HNK60 is ROHS3 compliant and active in production, whereas the SPN03N60C3 is obsolete and RoHS non-compliant. Applications subject to RoHS directives or requiring long-term supply assurance benefit from the STN1HNK60's compliance status and active product lifecycle.

Q: How should thermal management differ between these devices?

A: The STN1HNK60 has higher maximum power dissipation (3.3W vs. 1.8W) and higher Rds On. Thermal design must account for increased heat generation. Verify that existing thermal solutions (PCB copper area, heatsinking) accommodate the STN1HNK60's power dissipation profile.