KSB596O Equivalent & Substitute Parts

Part Overview

The KSB596O is a PNP bipolar junction transistor manufactured by onsemi, rated for 80 V collector-emitter breakdown voltage and 4 A maximum collector current in a TO-220-3 through-hole package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. The KSB596O delivers 30 W maximum power dissipation with a 3 MHz transition frequency, suitable for general-purpose switching and amplification applications requiring moderate current handling.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Voltage - Collector Emitter Breakdown (Max)	80	V
Current - Collector (Ic) (Max)	4	A
Power - Max	30	W
Frequency - Transition	3	MHz
Package / Case	TO-220-3	—
Mounting Type	Through Hole	—
Operating Temperature (Max)	150	°C

Substitute Part Grouping Explanation

Substitution of the KSB596O is determined by strict electrical and mechanical compatibility across the following parameters: transistor type (PNP), collector-emitter breakdown voltage rating, maximum collector current capacity, power dissipation capability, transition frequency, and through-hole TO-220-3 package format.

Substitute parts are grouped into two categories based on these criteria:

Category 1: Direct Electrical Equivalents — Parts matching the 80 V breakdown voltage, 4 A collector current, 30 W power rating, and 3 MHz transition frequency specifications. These parts maintain identical electrical performance envelopes and are suitable for direct replacement in existing designs.

Category 2: Higher-Performance Alternatives — Parts exceeding the KSB596O specifications in collector current capacity or power dissipation while maintaining the 80 V breakdown voltage and TO-220-3 package. These parts provide enhanced current handling or thermal performance but operate within the same voltage class and mechanical footprint.

Parameter Comparison

Parameter	KSB596O	KSB596YTU	D45VH10G	TIP32BG	TIP32C
Manufacturer	onsemi	onsemi	onsemi	onsemi	STMicroelectronics
Transistor Type	PNP	PNP	PNP	PNP	PNP
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	80 V	80 V	100 V
Current - Collector (Ic) (Max)	4 A	4 A	15 A	3 A	3 A
Power - Max	30 W	30 W	83 W	2 W	2 W
Frequency - Transition	3 MHz	3 MHz	50 MHz	3 MHz	—
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature (Max)	150°C	150°C	150°C	150°C	150°C
Product Status	Obsolete	Last Time Buy	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

KSB596YTU — This onsemi part provides direct electrical equivalence to the KSB596O with identical 80 V breakdown voltage, 4 A collector current, 30 W power rating, and 3 MHz transition frequency. The KSB596YTU is classified as Last Time Buy status and carries ROHS3 compliance certification. This part is the preferred direct replacement for KSB596O applications requiring exact electrical performance matching.

D45VH10G — This onsemi part operates at 80 V breakdown voltage with enhanced specifications: 15 A maximum collector current and 83 W power dissipation. The D45VH10G features 50 MHz transition frequency and active product status with ROHS3 compliance. This part is suitable for applications where the KSB596O current or power ratings are insufficient, provided the circuit design accommodates the higher performance envelope.

TIP32BG — This onsemi part is rated for 80 V breakdown voltage with 3 A maximum collector current and 2 W power dissipation. The TIP32BG maintains 3 MHz transition frequency and active product status with ROHS3 compliance and extended operating temperature range (−65°C to 150°C). This part is suitable for lower-power applications where the KSB596O power rating exceeds circuit requirements.

TIP32C — This STMicroelectronics part is rated for 100 V breakdown voltage with 3 A maximum collector current and 2 W power dissipation. The TIP32C carries active product status and ROHS3 compliance. The higher voltage rating provides additional design margin for applications operating near the KSB596O voltage limits, though power dissipation is reduced.

Frequently Asked Questions (FAQ)

Q: Can KSB596YTU directly replace KSB596O in all applications?

A: Yes. The KSB596YTU maintains identical electrical specifications: 80 V breakdown voltage, 4 A collector current, 30 W power dissipation, and 3 MHz transition frequency. Both parts use the TO-220-3 through-hole package. The primary difference is product status; KSB596YTU is Last Time Buy while KSB596O is obsolete.

Q: When should D45VH10G be selected over KSB596YTU?

A: The D45VH10G is selected when circuit requirements exceed the 4 A collector current or 30 W power dissipation limits of the KSB596O/KSB596YTU. The D45VH10G provides 15 A collector current and 83 W power dissipation while maintaining 80 V breakdown voltage and TO-220-3 package compatibility. The higher transition frequency (50 MHz) supports faster switching applications.

Q: Are TIP32BG and TIP32C suitable for all KSB596O applications?

A: TIP32BG and TIP32C are suitable only for applications where collector current does not exceed 3 A and power dissipation does not exceed 2 W. These parts are not suitable for applications requiring the full 4 A current or 30 W power capability of the KSB596O. Both parts maintain 80 V or higher breakdown voltage and TO-220-3 package compatibility.

Q: What is the difference between TIP32BG and TIP32C?

A: TIP32BG is manufactured by onsemi with 80 V breakdown voltage and extended operating temperature range (−65°C to 150°C). TIP32C is manufactured by STMicroelectronics with 100 V breakdown voltage and standard operating temperature range (to 150°C). Both parts deliver 3 A collector current and 2 W power dissipation in TO-220-3 packages.

Q: Does package compatibility guarantee mechanical interchangeability?

A: All listed substitute parts use the TO-220-3 through-hole package, ensuring identical mechanical footprint and mounting compatibility. Pin configuration (base, collector, emitter) is identical across all parts. PCB layout and heatsinking requirements may differ based on power dissipation specifications.

Q: Which substitute part has the best long-term availability?

A: D45VH10G, TIP32BG, and TIP32C all carry active product status, indicating ongoing manufacturing and availability. KSB596YTU is classified as Last Time Buy, indicating limited future availability. For new designs, D45VH10G, TIP32BG, or TIP32C are recommended for long-term supply assurance.

Q: Are all substitute parts RoHS compliant?

A: KSB596YTU, D45VH10G, TIP32BG, and TIP32C all carry ROHS3 compliance certification. The original KSB596O does not specify RoHS status. All substitute parts meet current environmental and regulatory requirements for electronic component manufacturing and use.

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