FJC1963RTF Equivalent & Substitute Parts

Part Overview

The FJC1963RTF is an NPN bipolar junction transistor manufactured by onsemi, rated for 30V collector-emitter breakdown voltage and 3A maximum collector current in a surface mount SOT-89-3 package. This device is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility across critical performance parameters including voltage rating, current capacity, power dissipation, and package form factor.

Substiute Parts

FJC1963RTF

onsemiIn Stock: 17356FJC1963RTF Datasheet

Current PartRFQ

2SCR552P5T100

Rohm SemiconductorIn Stock: 1298942SCR552P5T100 Datasheet

SimilarRFQ

2SCR552PFRAT100

Rohm SemiconductorIn Stock: 18802SCR552PFRAT100 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FJC1963RTF is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Transistor type: NPN configuration
• Voltage rating: 30V collector-emitter breakdown voltage (maximum)
• Current capacity: 3A maximum collector current
• Power dissipation: 500mW maximum
• Operating temperature: 150°C junction temperature (maximum)

Mechanical Equivalence Criteria:

• Package type: TO-243AA case outline
• Mounting technology: Surface mount
• Moisture sensitivity: MSL 1 (Unlimited)

The substitute parts identified—2SCR552P5T100 and 2SCR552PFRAT100 (both Rohm Semiconductor)—satisfy all electrical and mechanical equivalence requirements. Both devices are manufactured by Rohm Semiconductor and maintain active product status, providing long-term availability for production applications.

Parameter Comparison

Engineering Selection Recommendations

2SCR552P5T100 (Rohm Semiconductor)

This substitute part maintains full electrical and mechanical equivalence to the FJC1963RTF. The device is in active production status with 129,792 units in stock, ensuring long-term availability. RoHS3 compliance and REACH unaffected status satisfy environmental regulatory requirements. The MPT3 package designation is mechanically equivalent to SOT-89-3, with identical TO-243AA case outline. This part is suitable for general-purpose applications requiring direct replacement of the obsolete FJC1963RTF.

2SCR552PFRAT100 (Rohm Semiconductor)

This substitute part provides identical electrical and mechanical equivalence to the FJC1963RTF with the addition of automotive-grade qualification (AEC-Q101). The device is in active production status with 1,778 units in stock. RoHS3 compliance and REACH unaffected status are maintained. The automotive qualification and AEC-Q101 certification designate this part for applications requiring automotive-grade component reliability and traceability. Selection of this variant is appropriate for automotive and mission-critical applications where enhanced qualification documentation is required.

Both substitute parts demonstrate superior DC current gain (200 minimum versus 180 minimum) and lower saturation voltage characteristics compared to the FJC1963RTF, providing improved switching performance within equivalent electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can the 2SCR552P5T100 and 2SCR552PFRAT100 be used interchangeably with the FJC1963RTF?

A: Both Rohm Semiconductor parts satisfy all electrical and mechanical equivalence requirements for the FJC1963RTF. The primary distinction is that 2SCR552PFRAT100 carries automotive-grade qualification (AEC-Q101), while 2SCR552P5T100 is qualified for general industrial applications. Selection depends on application requirements and qualification documentation needs.

Q: What is the difference between the SOT-89-3 and MPT3 package designations?

A: SOT-89-3 and MPT3 are equivalent package designations for the same TO-243AA case outline. Both refer to a three-lead surface mount package with identical mechanical dimensions, lead spacing, and mounting footprint. These designations reflect different manufacturer nomenclature for the same physical package form.

Q: Are there compliance differences between the FJC1963RTF and the substitute parts?

A: The FJC1963RTF is REACH unaffected. Both substitute parts (2SCR552P5T100 and 2SCR552PFRAT100) are REACH unaffected and RoHS3 compliant. The 2SCR552PFRAT100 additionally carries AEC-Q101 automotive qualification. All three parts maintain MSL 1 (Unlimited) moisture sensitivity classification.

Q: What is the significance of the higher DC current gain in the substitute parts?

A: The substitute parts specify a minimum DC current gain (hFE) of 200 at 500mA and 2V, compared to 180 minimum for the FJC1963RTF. This represents improved transistor efficiency and faster switching response. Circuits designed for the FJC1963RTF will operate with enhanced performance characteristics when using the substitute parts, with no circuit modifications required.

Q: Why is the FJC1963RTF classified as obsolete?

A: The FJC1963RTF is an obsolete product from onsemi. The active substitute parts from Rohm Semiconductor (2SCR552P5T100 and 2SCR552PFRAT100) provide equivalent functionality with ongoing manufacturing support and long-term availability assurance.

Q: Can the substitute parts be used in new designs?

A: Both 2SCR552P5T100 and 2SCR552PFRAT100 are active products suitable for new design implementations. The 2SCR552PFRAT100 is recommended for new designs requiring automotive-grade qualification documentation. The 2SCR552P5T100 is appropriate for general industrial and consumer applications.