KSC2334R Equivalent & Substitute Parts

Part Overview

The KSC2334R is an NPN bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 7 A maximum collector current in a TO-220-3 through-hole package. This device is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

KSC2334R

onsemiIn Stock: 767KSC2334R Datasheet

Current PartRFQ

BD243CG

onsemiIn Stock: 1618BD243CG Datasheet

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KSC2334Y

Fairchild SemiconductorIn Stock: 1367KSC2334Y Datasheet

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KSC2334YTU

onsemiIn Stock: 1507KSC2334YTU Datasheet

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TIP29CG

onsemiIn Stock: 1664TIP29CG Datasheet

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TIP31CG

onsemiIn Stock: 6765TIP31CG Datasheet

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TIP41C

NTE Electronics, IncIn Stock: 105158TIP41C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the KSC2334R are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Transistor Type: NPN
• Voltage - Collector Emitter Breakdown (Max): 100 V minimum
• Package / Case: TO-220-3
• Mounting Type: Through Hole

Secondary Compatibility Parameters:

• Current - Collector (Ic) (Max): Equal to or greater than 7 A
• Vce Saturation characteristics
• DC Current Gain (hFE)
• Operating Temperature range

Substitute parts are grouped into two categories:

Category 1 - Direct Equivalents: Parts with identical or superior electrical ratings and matching package specifications. These parts maintain the same current handling capability (7 A) and voltage rating (100 V).

Category 2 - Functional Substitutes: Parts with the same voltage and package specifications but reduced current ratings. These parts are suitable for applications where the full 7 A capability is not required.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents):

KSC2334YTU and KSC2334Y are the preferred substitutes for the obsolete KSC2334R. Both parts maintain identical electrical specifications: 7 A maximum collector current, 100 V collector-emitter breakdown voltage, 1.5 W power rating, and TO-220-3 package configuration. KSC2334YTU is manufactured by onsemi with active product status and ROHS3 compliance. KSC2334Y is manufactured by Fairchild Semiconductor with active product status. Both parts feature improved DC current gain (hFE minimum of 120 @ 3A, 5V) compared to the original KSC2334R (hFE minimum of 40 @ 3A, 5V), providing enhanced switching performance.

Secondary Substitutes (Reduced Current Rating):

BD243CG and TIP41C are suitable substitutes for applications where maximum collector current does not exceed 6 A. Both parts maintain the 100 V voltage rating and TO-220-3 package. BD243CG is manufactured by onsemi with active product status and ROHS3 compliance. TIP41C is manufactured by NTE Electronics, Inc with active product status and ROHS3 compliance. These parts feature significantly higher power dissipation capability (65 W for BD243CG, 2 W for TIP41C) compared to the original 1.5 W rating.

Limited Current Applications:

TIP31CG is suitable for applications requiring maximum 3 A collector current. TIP29CG is suitable for applications requiring maximum 1 A collector current. Both parts maintain the 100 V voltage rating and TO-220-3 package with active product status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can KSC2334YTU directly replace KSC2334R in all applications?

A: Yes. KSC2334YTU maintains identical electrical ratings (7 A, 100 V, 1.5 W) and package configuration (TO-220-3). The improved DC current gain (120 vs. 40 minimum) provides enhanced performance without circuit modification requirements.

Q: What is the difference between KSC2334YTU and KSC2334Y?

A: Both parts have identical electrical specifications and package configuration. The primary difference is manufacturer: KSC2334YTU is manufactured by onsemi, while KSC2334Y is manufactured by Fairchild Semiconductor. Both are active products with ROHS3 compliance.

Q: Can BD243CG or TIP41C replace KSC2334R in high-current applications?

A: BD243CG and TIP41C are suitable substitutes only for applications where collector current does not exceed 6 A. Both parts maintain the 100 V voltage rating and TO-220-3 package. Circuit verification is required to confirm that 6 A maximum current rating is acceptable for the application.

Q: Why do TIP29CG and TIP31CG have lower current ratings than KSC2334R?

A: TIP29CG and TIP31CG are designed for lower-current applications (1 A and 3 A respectively). These parts are suitable substitutes only for circuits where the application current requirement does not exceed their maximum ratings. The 100 V voltage rating and TO-220-3 package remain compatible.

Q: Are all substitute parts ROHS3 compliant?

A: KSC2334YTU, KSC2334Y, BD243CG, TIP41C, TIP31CG, and TIP29CG are all ROHS3 compliant. The original KSC2334R does not specify ROHS status due to its obsolete classification.

Q: What packaging options are available for substitute parts?

A: All substitute parts are supplied in TO-220-3 through-hole package configuration, maintaining mechanical compatibility with the original KSC2334R. Packaging formats vary by supplier: KSC2334YTU is supplied in tube, KSC2334Y in bulk, BD243CG in tube, TIP41C in bag, TIP31CG in tube, and TIP29CG in tube.

Q: Can I use BD243CG in place of KSC2334R if my application only requires 5 A?

A: Yes. BD243CG is rated for 6 A maximum collector current, which exceeds the 5 A requirement. The 100 V voltage rating and TO-220-3 package provide full compatibility. The higher power dissipation capability (65 W) offers additional thermal margin.