2SC2073-BP Equivalent & Substitute Parts

Part Overview

The 2SC2073-BP 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 1.5 A, collector-emitter breakdown voltage of 150 V, and maximum power dissipation of 1.5 W in a Through Hole TO-220AB package. The 2SC2073-BP is classified as obsolete, making identification of equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

2SC2073-BP

Micro Commercial CoIn Stock: 11102SC2073-BP Datasheet

Current PartRFQ

KSC2073TU

Fairchild SemiconductorIn Stock: 91991KSC2073TU Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC2073-BP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Parameters (Must Match or Exceed):

• Transistor Type: NPN
• Maximum Collector Current (Ic): 1.5 A
• Maximum Collector-Emitter Breakdown Voltage (VCEO): 150 V
• DC Current Gain (hFE): Minimum 40 @ 500 mA, 10 V
• Collector Cutoff Current (ICBO): Maximum 10 µA
• Transition Frequency: 4 MHz

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: TO-220-3

Compliance Parameters:

• RoHS Status: ROHS3 Compliant

The KSC2073TU manufactured by Fairchild Semiconductor satisfies all substitution criteria. This part maintains identical electrical specifications for collector current, breakdown voltage, current gain, and cutoff current. The KSC2073TU is classified as Active product status, ensuring continued availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

The KSC2073TU is a direct functional equivalent to the 2SC2073-BP for applications requiring NPN bipolar transistor operation at 1.5 A collector current and 150 V breakdown voltage ratings. Both devices are RoHS3 compliant and feature identical TO-220-3 through-hole packaging, ensuring mechanical and electrical compatibility in existing circuit designs.

The primary advantage of selecting the KSC2073TU is its Active product status. The 2SC2073-BP is classified as Obsolete, indicating discontinued manufacturing and limited long-term availability. The KSC2073TU provides assured supply chain continuity and ongoing manufacturer support.

The KSC2073TU demonstrates superior saturation voltage performance (1 V versus 1.5 V at specified bias conditions), resulting in lower power dissipation during switching operation. This characteristic provides a performance advantage in applications sensitive to thermal management or efficiency.

Both devices operate across the identical temperature range (−55°C to 150°C junction temperature) and maintain equivalent DC current gain specifications. Pin configuration and functional behavior are identical, permitting direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the KSC2073TU replace the 2SC2073-BP in existing designs without modification?

A: Yes. The KSC2073TU is a direct substitute. Both devices feature identical collector current (1.5 A), breakdown voltage (150 V), DC current gain (40 @ 500 mA, 10 V), and TO-220-3 package configuration. Pin assignments and functional behavior are equivalent, permitting direct component substitution on printed circuit boards.

Q: What is the significance of the Obsolete product status for the 2SC2073-BP?

A: Obsolete status indicates the manufacturer has discontinued production. This creates supply chain risk for new production builds and long-term maintenance applications. The KSC2073TU, classified as Active, ensures continued availability from the manufacturer and authorized distributors.

Q: Are there differences in saturation voltage between these devices?

A: Yes. The 2SC2073-BP exhibits maximum saturation voltage of 1.5 V at 50 mA base current and 500 mA collector current. The KSC2073TU exhibits 1 V under identical bias conditions. This 0.5 V difference reduces power dissipation in the substitute device during saturation operation, benefiting thermal performance in switching applications.

Q: Do both devices meet RoHS compliance requirements?

A: Yes. Both the 2SC2073-BP and KSC2073TU are RoHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: Is the TO-220-3 package identical between both devices?

A: Yes. Both devices use the TO-220-3 through-hole package with identical pin configuration and mechanical dimensions. This ensures compatibility with existing printed circuit board layouts and thermal management solutions.

Q: What is the maximum power dissipation difference between these devices?

A: The 2SC2073-BP is rated for 1.5 W maximum power dissipation. The KSC2073TU is rated for 25 W maximum power dissipation. The substitute device provides significantly greater thermal capacity, allowing operation in higher-power applications while maintaining the same electrical specifications required for the original design.

Q: Are the operating temperature ranges equivalent?

A: Yes. Both devices operate across −55°C to 150°C junction temperature range, ensuring equivalent thermal performance across industrial and commercial temperature environments.