2SD874-S-TP Equivalent & Substitute Parts

Part Overview

The 2SD874-S-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 1 A, collector-emitter breakdown voltage of 25 V, and a maximum power dissipation of 500 mW in a surface mount SOT-89 package. The 2SD874-S-TP is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support, production continuity, and component sourcing.

Substiute Parts

2SD874-S-TP

Micro Commercial CoIn Stock: 11332SD874-S-TP Datasheet

Current PartRFQ

2DD1664R-13

Diodes IncorporatedIn Stock: 222142DD1664R-13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SD874-S-TP is determined by strict adherence to the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Transistor polarity must be NPN
• Maximum collector current must be greater than or equal to 1 A
• Collector-emitter breakdown voltage must be greater than or equal to 25 V
• Vce saturation characteristics must be compatible with 400 mV @ 50 mA, 500 mA
• DC current gain (hFE) must support the specified operating conditions
• Maximum power dissipation must be greater than or equal to 500 mW
• Transition frequency must support the 200 MHz operational requirement
• Operating temperature range must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

• Surface mount mounting type
• TO-243AA package / SOT-89 supplier device package
• RoHS3 compliance
• MSL rating of 1 (Unlimited)

The 2DD1664R-13 manufactured by Diodes Incorporated meets all substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 2DD1664R-13 is a direct functional substitute for the 2SD874-S-TP. The substitute part meets or exceeds all electrical and mechanical requirements specified for the original component.

Product Status Consideration: The 2SD874-S-TP is classified as obsolete, whereas the 2DD1664R-13 maintains active product status with 22,200 units in current inventory. This availability differential supports long-term design continuity and production scheduling.

Compliance and Certification: Both components maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with current manufacturing and environmental standards. The 2DD1664R-13 additionally carries REACH Unaffected status.

Performance Enhancement: The 2DD1664R-13 provides enhanced electrical performance with a collector-emitter breakdown voltage of 32 V (versus 25 V), maximum power dissipation of 1 W (versus 500 mW), and transition frequency of 280 MHz (versus 200 MHz). These enhancements provide additional design margin without introducing incompatibility.

Package Compatibility: Both components utilize surface mount technology in TO-243AA package configuration with SOT-89 supplier device packaging, ensuring mechanical and thermal compatibility in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the 2DD1664R-13 be used as a direct replacement for the 2SD874-S-TP in existing designs?

A: Yes. The 2DD1664R-13 meets all electrical and mechanical requirements of the 2SD874-S-TP. The substitute part provides equal or superior performance across all specified parameters, including collector current, breakdown voltage, saturation characteristics, power dissipation, and operating temperature range. Surface mount packaging and pin configuration are compatible.

Q: What are the key differences between the 2SD874-S-TP and 2DD1664R-13?

A: The primary differences are product status (obsolete versus active), collector-emitter breakdown voltage (25 V versus 32 V), maximum power dissipation (500 mW versus 1 W), and transition frequency (200 MHz versus 280 MHz). The 2DD1664R-13 provides enhanced electrical performance margins while maintaining full compatibility with the original design specifications.

Q: Are there any package or pinout differences between these components?

A: Both components use TO-243AA package configuration with SOT-89 supplier device packaging. Pin configuration and mechanical dimensions are compatible, allowing direct PCB layout substitution without modification.

Q: What is the significance of the product status difference?

A: The 2SD874-S-TP is classified as obsolete, indicating discontinued manufacturing and limited availability. The 2DD1664R-13 maintains active product status with substantial inventory (22,200 units), ensuring reliable sourcing for current and future production requirements.

Q: Do both components meet current environmental and compliance standards?

A: Yes. Both the 2SD874-S-TP and 2DD1664R-13 are ROHS3 compliant with MSL rating of 1 (Unlimited). The 2DD1664R-13 additionally carries REACH Unaffected status, confirming compliance with current environmental regulations.

Q: Can the enhanced specifications of the 2DD1664R-13 cause compatibility issues in existing circuits?

A: No. The enhanced specifications of the 2DD1664R-13 (higher breakdown voltage, greater power dissipation, higher transition frequency) provide additional design margin and do not introduce incompatibility. The component operates within all electrical and thermal constraints of the original design.