STPS660CB-TR Equivalent & Substitute Parts

Part Overview

The STPS660CB-TR is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common cathode with a maximum reverse voltage of 60 V and average rectified current of 3 A per diode. The device is packaged in TO-252-3 DPAK surface mount configuration and is classified as obsolete product status.

Due to the obsolete status of the STPS660CB-TR, identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

STPS660CB-TR

STMicroelectronicsIn Stock: 1266STPS660CB-TR Datasheet

Current PartRFQ

MBRD660CTT4G

onsemiIn Stock: 17393MBRD660CTT4G Datasheet

SimilarRFQ

RB085BM-60TL

Rohm SemiconductorIn Stock: 74171RB085BM-60TL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STPS660CB-TR are selected based on the following critical parameters that determine functional equivalence:

Primary Compatibility Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 60 V (minimum requirement)
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Mounting Type: Surface Mount

Secondary Compatibility Criteria:

• Current - Average Rectified (Io) (per Diode): Equal to or greater than 3 A
• Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• RoHS Status: ROHS3 Compliant

The identified substitute parts meet or exceed the electrical specifications of the STPS660CB-TR while maintaining identical package and mounting characteristics. Substitutes with higher current ratings or lower forward voltage drops provide enhanced performance margins within the same physical footprint.

Parameter Comparison

Engineering Selection Recommendations

MBRD660CTT4G (onsemi SWITCHMODE™ Series)

The MBRD660CTT4G is a direct electrical equivalent to the STPS660CB-TR with identical voltage and current ratings. This substitute maintains the same 60 V reverse voltage and 3 A average rectified current specifications. The MBRD660CTT4G is classified as active product status with ROHS3 compliance and unlimited moisture sensitivity level. The extended operating temperature range (-65°C to 175°C) provides broader thermal performance compared to the STPS660CB-TR. Forward voltage specification of 700 mV at 3 A is within acceptable operating parameters. This part is suitable for direct replacement in applications requiring equivalent electrical performance.

RB085BM-60TL (Rohm Semiconductor)

The RB085BM-60TL is a higher-current variant rated at 5 A average rectified current per diode, exceeding the STPS660CB-TR requirement of 3 A. This substitute maintains the same 60 V reverse voltage rating and identical TO-252-3 DPAK package configuration. The RB085BM-60TL is classified as active product status with ROHS3 compliance and unlimited moisture sensitivity level. Forward voltage specification of 580 mV at 5 A demonstrates improved efficiency characteristics. The higher current rating provides additional design margin for applications with variable or peak current demands. This part is suitable for replacement in applications where enhanced current capacity is beneficial.

Both substitute parts maintain full compliance with RoHS3 requirements and REACH unaffected status. Selection between substitutes depends on application-specific requirements for current capacity and thermal performance.

Frequently Asked Questions (FAQ)

Q: Can the MBRD660CTT4G replace the STPS660CB-TR in all applications?

A: The MBRD660CTT4G maintains identical electrical specifications for voltage and current ratings, identical package configuration, and equivalent fast recovery speed characteristics. Both parts are Schottky diode arrays with 1 pair common cathode configuration in TO-252-3 DPAK surface mount packaging. Direct substitution is supported for applications operating within the specified 60 V reverse voltage and 3 A current parameters.

Q: What is the difference between the MBRD660CTT4G and RB085BM-60TL?

A: Both parts share identical reverse voltage (60 V) and package specifications (TO-252-3 DPAK). The primary difference is current rating: MBRD660CTT4G is rated at 3 A per diode (matching STPS660CB-TR), while RB085BM-60TL is rated at 5 A per diode. The RB085BM-60TL also exhibits lower forward voltage (580 mV at 5 A) compared to MBRD660CTT4G (700 mV at 3 A). Selection depends on whether the application requires the exact 3 A specification or benefits from higher current capacity.

Q: Are all substitute parts in the same package?

A: Yes. The STPS660CB-TR, MBRD660CTT4G, and RB085BM-60TL are all packaged in TO-252-3 DPAK (2 Leads + Tab), SC-63 surface mount configuration. This identical packaging ensures mechanical compatibility with existing PCB layouts and assembly processes without modification.

Q: What is the significance of the "1 Pair Common Cathode" configuration?

A: The 1 Pair Common Cathode configuration indicates the diode array contains two diodes with a shared cathode terminal. This internal connection topology must be maintained in substitute parts to ensure circuit compatibility. All identified substitutes maintain this identical configuration.

Q: Are the substitute parts RoHS3 compliant?

A: Yes. Both MBRD660CTT4G and RB085BM-60TL are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). Both parts are REACH unaffected. Compliance status matches the STPS660CB-TR requirements.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This specification indicates the diode exhibits fast recovery characteristics with recovery time not exceeding 500 nanoseconds when switching currents greater than 200 milliamps. All identified substitute parts maintain this fast recovery speed specification, ensuring equivalent switching performance in high-frequency applications.

Q: Why is the STPS660CB-TR classified as obsolete?

A: Obsolete product status indicates the part is no longer manufactured or supported by STMicroelectronics. Active substitute parts from onsemi and Rohm Semiconductor provide equivalent or enhanced functionality with ongoing manufacturing support and availability.