KSC2073H2TU Equivalent & Substitute Parts

Part Overview

The KSC2073H2TU is an NPN bipolar junction transistor manufactured by onsemi, rated for 150 V collector-emitter breakdown voltage and 1.5 A maximum collector current in a Through Hole TO-220-3 package. This device is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement availability for applications requiring NPN power transistor functionality within the specified electrical and mechanical parameters.

Substiute Parts

KSC2073H2TU

onsemiIn Stock: 1266KSC2073H2TU Datasheet

Current PartRFQ

KSC2073TU

Fairchild SemiconductorIn Stock: 91991KSC2073TU Datasheet

MFR RecommendedRFQ

TIP47

NTE Electronics, IncIn Stock: 26227TIP47 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KSC2073H2TU is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Transistor Type: NPN
• Package / Case: TO-220-3
• Mounting Type: Through Hole
• Voltage - Collector Emitter Breakdown (Max): 150 V minimum
• Current - Collector (Ic) (Max): 1.5 A minimum
• Power - Max: 25 W minimum

Substitute Classification:

Manufacturer Recommended Equivalent: KSC2073TU (Fairchild Semiconductor) meets all primary substitution criteria with identical electrical specifications and package configuration.

Similar Substitute: TIP47 (NTE Electronics, Inc) operates within compatible electrical parameters but exceeds primary specifications in voltage rating (250 V) and power dissipation (40 W), with reduced maximum collector current (1 A) and increased transition frequency (10 MHz).

Parameter Comparison

Engineering Selection Recommendations

KSC2073TU (Recommended Equivalent): This part is the primary substitute for the KSC2073H2TU. It maintains identical electrical specifications across all critical parameters including voltage rating, current capacity, power dissipation, and transition frequency. The part is in Active product status, ensuring long-term availability. Selection of KSC2073TU provides direct functional equivalence with no circuit redesign required.

TIP47 (Similar Substitute): This part operates within compatible electrical parameters for applications where the reduced maximum collector current (1 A versus 1.5 A) and increased voltage rating (250 V versus 150 V) are acceptable. The TIP47 exhibits higher transition frequency (10 MHz) and extended power dissipation capability (40 W). However, the TIP47 is RoHS non-compliant, which may restrict use in applications subject to RoHS compliance requirements. The TIP47 is suitable only for applications where the specified electrical derating is acceptable.

Compliance Considerations: The KSC2073H2TU is ROHS3 Compliant and REACH Unaffected. The KSC2073TU maintains compatibility with these compliance frameworks. The TIP47 is RoHS non-compliant and should not be selected for applications requiring RoHS compliance certification.

Frequently Asked Questions (FAQ)

Q: Can KSC2073TU be used as a direct replacement for KSC2073H2TU?

A: Yes. The KSC2073TU is a direct equivalent. Both parts share identical electrical specifications including 150 V breakdown voltage, 1.5 A maximum collector current, 25 W power rating, and 4 MHz transition frequency. Both are packaged in TO-220-3 Through Hole configuration. No circuit modifications are required.

Q: What are the key differences between KSC2073H2TU and TIP47?

A: The TIP47 differs in three primary parameters: maximum collector current is reduced to 1 A (versus 1.5 A), collector-emitter breakdown voltage is increased to 250 V (versus 150 V), and transition frequency is increased to 10 MHz (versus 4 MHz). The TIP47 also exhibits higher power dissipation capability (40 W versus 25 W). These differences require circuit analysis to confirm compatibility.

Q: Are there package compatibility issues between these parts?

A: All three parts use the TO-220-3 Through Hole package. Physical mounting and thermal interface compatibility are identical. No package-related modifications are required for any substitution.

Q: Why is the KSC2073H2TU classified as Last Time Buy?

A: Last Time Buy status indicates that onsemi has discontinued production of this part. Existing inventory is available for final orders, but long-term supply cannot be guaranteed. Transition to an active equivalent such as KSC2073TU is recommended for new designs and ongoing production requirements.

Q: Does RoHS compliance affect part selection?

A: Yes. The KSC2073H2TU is ROHS3 Compliant. The KSC2073TU maintains this compliance status. The TIP47 is RoHS non-compliant and cannot be used in applications subject to RoHS regulatory requirements. Compliance requirements must be confirmed before selecting TIP47 as a substitute.

Q: What is the significance of DC Current Gain (hFE) differences?

A: The KSC2073H2TU specifies minimum hFE of 60 @ 500mA, 10V. The KSC2073TU specifies 40 @ 500mA, 10V, and the TIP47 specifies 30 @ 300mA, 10V. Lower hFE values require higher base drive current to achieve saturation. Circuit designs dependent on specific hFE values must be analyzed to confirm compatibility with substitute parts exhibiting lower gain specifications.