KSB596Y Equivalent & Substitute Parts

Part Overview

The KSB596Y 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 component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement continuity. Substitute parts must maintain electrical compatibility within the specified voltage and current ratings while accommodating modern component availability and compliance standards.

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 eligibility for the KSB596Y is determined by the following critical parameters: transistor type (PNP), package configuration (TO-220-3 through-hole), and electrical ratings that meet or exceed the original specifications. The primary substitution criteria are:

Mandatory Compatibility Parameters:

Transistor Type: PNP
Package / Case: TO-220-3
Mounting Type: Through Hole
Voltage - Collector Emitter Breakdown (Max): ≥ 80 V
Current - Collector (Ic) (Max): ≥ 4 A

Substitute parts are grouped into two categories based on their electrical performance relative to the KSB596Y:

Category 1 - Direct Electrical Equivalents: Parts with matched or closely aligned current ratings (3-4 A range) and identical voltage ratings (80 V). These parts maintain the same functional envelope as the original component.

Category 2 - Enhanced Performance Substitutes: Parts with higher current ratings (15 A) or voltage ratings (100 V) that provide superior performance margins while maintaining backward compatibility through identical package and mounting specifications.

Parameter Comparison

Parameter	KSB596Y	TIP32BG	TIP32C	D45VH10G
Manufacturer	onsemi	onsemi	STMicroelectronics	onsemi
Product Status	Obsolete	Active	Active	Active
Transistor Type	PNP	PNP	PNP	PNP
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	100 V	80 V
Current - Collector (Ic) (Max)	4 A	3 A	3 A	15 A
Power - Max	30 W	2 W	2 W	83 W
Frequency - Transition	3 MHz	3 MHz	-	50 MHz
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature (Max)	150°C	150°C	150°C	150°C
RoHS Status	-	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

TIP32BG (onsemi): This part is an active equivalent with identical voltage (80 V) and transition frequency (3 MHz) specifications. The current rating of 3 A is within the KSB596Y operating envelope for applications not requiring the full 4 A capacity. TIP32BG carries ROHS3 compliance and is available in high inventory quantities (3700 pcs). This part is suitable for direct substitution in applications where the 3 A current limit is acceptable.

TIP32C (STMicroelectronics): This part provides enhanced voltage rating (100 V) compared to the KSB596Y (80 V), offering improved design margin for overvoltage conditions. The current rating remains at 3 A. TIP32C is ROHS3 compliant with extensive inventory availability (45550 pcs). This part is suitable for applications requiring higher voltage tolerance while maintaining the same current envelope.

D45VH10G (onsemi): This part offers significantly enhanced performance with 15 A maximum collector current and 83 W power dissipation, compared to the KSB596Y specifications of 4 A and 30 W. The voltage rating matches at 80 V. D45VH10G features higher transition frequency (50 MHz) and is ROHS3 compliant with high inventory availability (50501 pcs). This part is suitable for applications requiring higher current capacity or improved thermal performance.

All substitute parts maintain identical TO-220-3 package configuration and through-hole mounting compatibility with the original KSB596Y, ensuring mechanical interchangeability on existing printed circuit boards.

Frequently Asked Questions (FAQ)

Q: Can TIP32BG replace KSB596Y in all applications?

A: TIP32BG is electrically compatible for applications where the maximum collector current requirement does not exceed 3 A. The KSB596Y is rated for 4 A maximum, so applications requiring the full 4 A capacity require alternative substitutes. Voltage rating (80 V) and transition frequency (3 MHz) are identical.

Q: What is the primary difference between TIP32C and TIP32BG?

A: TIP32C is manufactured by STMicroelectronics with a 100 V voltage rating, while TIP32BG is manufactured by onsemi with an 80 V voltage rating. Both parts share identical current (3 A) and frequency (3 MHz) specifications. TIP32C provides higher voltage margin for overvoltage protection.

Q: Is D45VH10G a direct replacement for KSB596Y?

A: D45VH10G is mechanically and electrically compatible but provides enhanced performance. It exceeds the KSB596Y specifications in current capacity (15 A vs. 4 A), power dissipation (83 W vs. 30 W), and transition frequency (50 MHz vs. 3 MHz). The voltage rating matches at 80 V. D45VH10G is suitable for applications requiring higher performance margins or increased current handling.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts (TIP32BG, TIP32C, and D45VH10G) are packaged in TO-220-3 through-hole configuration, identical to the KSB596Y. This ensures mechanical interchangeability on existing circuit board layouts without modification.

Q: What compliance certifications apply to the substitute parts?

A: TIP32BG, TIP32C, and D45VH10G are all ROHS3 compliant and REACH unaffected. These certifications ensure compliance with current environmental and regulatory standards for electronic components.

Q: Which substitute part should be selected for maximum design margin?

A: D45VH10G provides the highest performance margin with 15 A current capacity, 83 W power dissipation, and 50 MHz transition frequency. TIP32C provides enhanced voltage margin at 100 V. Selection depends on specific application requirements for current, power, and frequency performance.

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