ER3K-TP Equivalent & Substitute Parts

Part Overview

The ER3K-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 800 V DC reverse voltage and 3 A average rectified current in a Surface Mount SMC (DO-214AB) package. This component is classified as Active and complies with ROHS3 and REACH Unaffected standards. The ER3K-TP is suitable for applications requiring fast recovery characteristics with a reverse recovery time of 75 ns. Substitute parts are identified based on matching electrical ratings and mechanical compatibility within the SMC package form factor.

Substiute Parts

ER3K-TP

Micro Commercial CoIn Stock: 2757ER3K-TP Datasheet

Current PartRFQ

S3K

Diotec SemiconductorIn Stock: 3442S3K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ER3K-TP are identified based on the following critical electrical and mechanical parameters:

• Voltage Rating: DC reverse voltage of 800 V (maximum)
• Current Rating: Average rectified current of 3 A
• Package Type: Surface Mount SMC (DO-214AB)
• Reverse Leakage Current: 5 µA @ 800 V
• Mounting Configuration: Surface Mount compatibility

The S3K from Diotec Semiconductor meets these core substitution criteria. Both devices share identical voltage and current ratings, operate in the same SMC package, and maintain equivalent reverse leakage specifications. Differences in recovery speed characteristics and forward voltage are noted in the parameter comparison but do not preclude substitution where application requirements permit.

Parameter Comparison

Engineering Selection Recommendations

ER3K-TP Selection: Select the ER3K-TP when fast recovery characteristics are required. The 75 ns reverse recovery time supports high-frequency switching applications. This part is ROHS3 Compliant and REACH Unaffected, with unlimited moisture sensitivity (MSL 1). Operating temperature range extends to 175°C junction temperature.

S3K Selection: The S3K from Diotec Semiconductor is suitable for applications where standard recovery speed is acceptable. The 1.5 µs reverse recovery time indicates standard recovery performance. This part is ROHS3 Compliant with REACH information available upon request. Operating temperature range is -50°C to 150°C junction temperature. The lower forward voltage (1.15 V @ 3 A versus 1.7 V @ 3 A) results in reduced power dissipation in conduction.

Both parts maintain identical voltage and current ratings with equivalent reverse leakage characteristics. Selection between these devices depends on application-specific requirements for recovery speed, thermal operating range, and forward voltage performance.

Frequently Asked Questions (FAQ)

Q: Can the S3K directly replace the ER3K-TP in all applications?

A: The S3K and ER3K-TP share identical voltage (800 V), current (3 A), and package specifications (DO-214AB SMC). Substitution is mechanically and electrically compatible for voltage and current parameters. However, the S3K exhibits standard recovery speed (1.5 µs) compared to the ER3K-TP's fast recovery (75 ns). Applications sensitive to reverse recovery time characteristics must evaluate this difference.

Q: What is the significance of the forward voltage difference between these parts?

A: The ER3K-TP specifies 1.7 V forward voltage at 3 A, while the S3K specifies 1.15 V at 3 A. Lower forward voltage reduces power dissipation during conduction. In high-current or continuous-duty applications, the S3K's lower forward voltage may result in reduced thermal load.

Q: Are both parts suitable for high-temperature applications?

A: The ER3K-TP operates to 175°C junction temperature, while the S3K operates to 150°C junction temperature. Applications requiring operation above 150°C junction temperature require the ER3K-TP.

Q: Do both parts meet the same compliance standards?

A: Both the ER3K-TP and S3K are ROHS3 Compliant. The ER3K-TP is REACH Unaffected. The S3K has REACH information available upon request. Compliance verification is required for applications with specific regulatory requirements.

Q: Is the SMC package identical for both parts?

A: Both parts use the DO-214AB SMC package for Surface Mount applications. Mechanical compatibility and PCB footprint requirements are identical.

Q: What is the reverse recovery time significance in diode selection?

A: Reverse recovery time (trr) is the interval required for a diode to transition from forward conduction to reverse blocking. The ER3K-TP's 75 ns recovery time supports faster switching frequencies compared to the S3K's 1.5 µs recovery time. Applications operating at high switching frequencies benefit from faster recovery characteristics.