KSD560RTU Equivalent & Substitute Parts

Part Overview

The KSD560RTU is an NPN Darlington bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 5 A maximum collector current in a TO-220-3 through-hole package. This device is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and production continuity. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

KSD560RTU

onsemiIn Stock: 1188KSD560RTU Datasheet

Current PartRFQ

KSD560RTSTU

onsemiIn Stock: 3533KSD560RTSTU Datasheet

DirectRFQ

MJF122G

onsemiIn Stock: 25127MJF122G Datasheet

SimilarRFQ

TIP122G

onsemiIn Stock: 35189TIP122G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KSD560RTU is determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Transistor Type: NPN - Darlington configuration
• Maximum Collector Current (Ic): 5 A
• Maximum Collector-Emitter Breakdown Voltage: 100 V
• Mounting Type: Through Hole
• Package Family: TO-220 series

Compliance Criteria:

• RoHS3 Compliance
• REACH Unaffected status

Substitute parts are grouped into two categories: direct equivalents (identical electrical specifications and packaging) and similar alternatives (equivalent electrical performance with package or specification variations).

Parameter Comparison

Engineering Selection Recommendations

KSD560RTSTU (Direct Equivalent)

The KSD560RTSTU is a direct electrical equivalent to the KSD560RTU with identical specifications across all critical parameters: 5 A collector current, 100 V breakdown voltage, 1.5 W power rating, and TO-220-3 package. The primary distinction is product status (Last Time Buy versus Obsolete) and packaging format (Tube). This part is suitable for direct replacement in existing designs without circuit modification. Availability is higher (3455 pcs in stock versus 1134 pcs for the original part).

MJF122G (Similar Alternative)

The MJF122G maintains electrical equivalence for collector current (5 A) and breakdown voltage (100 V) with enhanced power dissipation capability (2 W versus 1.5 W). The package designation is TO-220FP (Full Pack variant), which is mechanically compatible with TO-220-3 footprints. This part carries Active product status and offers the highest inventory availability (25100 pcs). Selection of MJF122G is appropriate for applications where increased thermal headroom is beneficial.

TIP122G (Similar Alternative)

The TIP122G provides electrical equivalence for collector current (5 A) and breakdown voltage (100 V) with 2 W power rating. The package is standard TO-220-3. This part carries Active product status with substantial inventory (35100 pcs). Selection of TIP122G is appropriate for applications requiring long-term supply continuity and active product support.

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with the original KSD560RTU.

Frequently Asked Questions (FAQ)

Q: Can KSD560RTSTU be used as a direct replacement for KSD560RTU?

A: Yes. The KSD560RTSTU is electrically and mechanically identical to the KSD560RTU across all specified parameters: 5 A collector current, 100 V breakdown voltage, 1.5 W power dissipation, and TO-220-3 package. No circuit modifications are required.

Q: What is the difference between KSD560RTSTU and MJF122G?

A: Both parts share identical collector current (5 A) and breakdown voltage (100 V) ratings. The MJF122G has a higher power rating (2 W versus 1.5 W) and uses a TO-220FP package variant. The TO-220FP is mechanically compatible with TO-220-3 footprints. MJF122G is recommended when additional thermal dissipation capacity is required.

Q: What is the difference between KSD560RTSTU and TIP122G?

A: Both parts share identical collector current (5 A) and breakdown voltage (100 V) ratings. The TIP122G has a higher power rating (2 W versus 1.5 W) and uses a standard TO-220-3 package. TIP122G is recommended for applications requiring active product status and extended supply availability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (KSD560RTSTU, MJF122G, TIP122G) are ROHS3 compliant and REACH Unaffected, matching the regulatory status of the original KSD560RTU.

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

A: TIP122G carries Active product status with 35100 pcs in inventory, providing the highest assurance of long-term supply continuity. MJF122G also carries Active status with 25100 pcs available. KSD560RTSTU is designated Last Time Buy with 3455 pcs in stock.

Q: Can MJF122G or TIP122G be used in applications designed for KSD560RTU?

A: Yes. Both MJF122G and TIP122G maintain the required electrical specifications (5 A collector current, 100 V breakdown voltage) and through-hole TO-220 package compatibility. The increased power rating (2 W) provides additional design margin and does not create incompatibility with existing circuits.

Q: What is the significance of the TO-220FP package designation for MJF122G?

A: TO-220FP (Full Pack) is a mechanical variant of the TO-220-3 package with identical pin configuration and footprint compatibility. The designation indicates packaging format rather than electrical or dimensional differences affecting circuit board assembly.