2N3773 PBFREE Equivalent & Substitute Parts

Part Overview

The 2N3773 PBFREE is an NPN bipolar junction transistor manufactured by Central Semiconductor Corp, designed for high-current switching and amplification applications. This device operates at 140 V collector-emitter breakdown voltage with a maximum collector current of 16 A and 150 W power dissipation capability in a TO-3 package. The 2N3773 PBFREE is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility across voltage, current, and thermal operating ranges while accommodating through-hole TO-3 package requirements.

Substiute Parts

2N3773 PBFREE

Central Semiconductor CorpIn Stock: 12742N3773 PBFREE Datasheet

Current PartRFQ

2N3773G

onsemiIn Stock: 21572N3773G Datasheet

DirectRFQ

MJ15001G

onsemiIn Stock: 1206MJ15001G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 2N3773 PBFREE are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Transistor Type: NPN configuration
• Voltage - Collector Emitter Breakdown: 140 V (minimum requirement)
• Current - Collector (Ic) (Max): 16 A or greater
• Power - Max: 150 W or greater
• Package / Case: TO-204AA or TO-3 (through-hole)
• Operating Temperature Range: -65°C to 200°C (TJ)
• RoHS Compliance: ROHS3 Compliant

Two substitute parts meet these criteria with active product status and full inventory availability:

2N3773G (onsemi): Direct electrical equivalent with identical voltage and current ratings, matching 150 W power dissipation and temperature range. Supplied in TO-204 (TO-3) package.

MJ15001G (onsemi): Higher-performance alternative with 15 A collector current (within 16 A specification), elevated 200 W power rating, and improved DC current gain characteristics. Supplied in TO-204 (TO-3) package.

Parameter Comparison

Engineering Selection Recommendations

2N3773G Selection Criteria:

The 2N3773G represents a direct functional replacement for the obsolete 2N3773 PBFREE. This substitute maintains identical electrical specifications across voltage (140 V), current (16 A), and power (150 W) parameters. The 2N3773G is manufactured by onsemi with active product status, ensuring long-term availability and supply chain continuity. Both devices share identical DC current gain characteristics (15 @ 8A, 4V) and operating temperature range (-65°C to 200°C TJ). The 2N3773G is supplied in TO-204 (TO-3) package configuration, providing mechanical compatibility with existing through-hole PCB designs. ROHS3 compliance and REACH unaffected status confirm regulatory alignment with current manufacturing standards.

MJ15001G Selection Criteria:

The MJ15001G serves as an enhanced-performance substitute when application requirements permit operation within its specified parameters. This device maintains the 140 V voltage rating and -65°C to 200°C operating temperature range. The 15 A collector current rating remains within the 16 A specification envelope for most applications. The MJ15001G provides superior power dissipation capability (200 W versus 150 W), enabling thermal margin in high-power switching circuits. Improved DC current gain (25 @ 4A, 2V) and reduced collector cutoff current (250 µA versus 10 mA) indicate enhanced switching performance characteristics. The MJ15001G is supplied in TO-204 (TO-3) package with active product status, ROHS3 compliance, and REACH unaffected certification.

Selection Logic:

Choose 2N3773G for direct replacement in existing designs requiring exact electrical parameter matching. Choose MJ15001G when thermal performance enhancement or improved switching characteristics provide circuit design benefits and the 15 A collector current specification accommodates application requirements.

Frequently Asked Questions (FAQ)

Q: Can the 2N3773G directly replace the 2N3773 PBFREE without circuit modification?

A: Yes. The 2N3773G maintains identical electrical specifications for voltage (140 V), current (16 A), power (150 W), and DC current gain (15 @ 8A, 4V). Both devices operate across -65°C to 200°C temperature range and use TO-3 through-hole packaging. No circuit modification is required.

Q: What is the primary difference between 2N3773G and MJ15001G?

A: The MJ15001G provides enhanced power dissipation (200 W versus 150 W) and improved DC current gain (25 @ 4A, 2V versus 15 @ 8A, 4V). The collector current rating is 15 A versus 16 A. Both maintain 140 V voltage rating and TO-3 packaging. Selection depends on whether the application requires the additional thermal margin and performance characteristics of the MJ15001G.

Q: Are both substitute parts available in the same package as the original 2N3773 PBFREE?

A: Yes. Both 2N3773G and MJ15001G are supplied in TO-204 (TO-3) through-hole packages, providing mechanical compatibility with existing PCB designs and mounting requirements.

Q: Do the substitute parts meet current regulatory compliance standards?

A: Yes. Both 2N3773G and MJ15001G are ROHS3 compliant and REACH unaffected, confirming compliance with current environmental and regulatory manufacturing standards.

Q: Why is the 2N3773 PBFREE classified as obsolete?

A: The 2N3773 PBFREE is manufactured by Central Semiconductor Corp and has reached end-of-life status. Active substitute parts from onsemi (2N3773G and MJ15001G) provide equivalent or enhanced functionality with ongoing manufacturing support and supply availability.

Q: Can the MJ15001G be used in applications designed for 16 A collector current?

A: The MJ15001G is rated for 15 A maximum collector current. Applications requiring sustained operation at 16 A collector current should use the 2N3773G. Applications operating below 15 A can use the MJ15001G with its enhanced thermal and performance characteristics.

Q: What is the significance of the different Vce saturation specifications between parts?

A: Vce saturation differences reflect manufacturing variations and design optimization between manufacturers. The 2N3773G specifies 1.4V @ 800mA, 8A while MJ15001G specifies 1V @ 400mA, 4A. Both values remain within acceptable saturation ranges for switching applications. Circuit designers should verify saturation voltage requirements against specific application specifications.