2SB1203T-H-TL-E Equivalent & Substitute Parts

Part Overview

The 2SB1203T-H-TL-E is a Surface Mount PNP Bipolar Junction Transistor (BJT) manufactured by onsemi, rated for 50 V collector-emitter breakdown voltage and 5 A maximum collector current. This device is housed in a TO-252-3 DPAK package with 2 leads plus tab (SC-63) configuration and operates at a maximum junction temperature of 150°C.

The 2SB1203T-H-TL-E is classified as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this transistor topology.

Substiute Parts

2SB1203T-H-TL-E

onsemiIn Stock: 10572SB1203T-H-TL-E Datasheet

Current PartRFQ

2SA2039-TL-E

onsemiIn Stock: 102852SA2039-TL-E Datasheet

DirectRFQ

2SA2040-TL-E

onsemiIn Stock: 174702SA2040-TL-E Datasheet

SimilarRFQ

2SB1204T-TL-E

onsemiIn Stock: 8952SB1204T-TL-E Datasheet

SimilarRFQ

2SB1203T-TL-E

onsemiIn Stock: 33182SB1203T-TL-E Datasheet

Parametric EquivalentRFQ

2SA2097(TE16L1,NQ)

Toshiba Semiconductor and StorageIn Stock: 11932SA2097(TE16L1,NQ) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SB1203T-H-TL-E is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Transistor Type: PNP (must match)
• Voltage - Collector Emitter Breakdown (Max): 50 V (must match or exceed)
• Current - Collector (Ic) (Max): 5 A (must match or exceed)
• DC Current Gain (hFE) (Min) @ Ic, Vce: 200 @ 500mA, 2V (must match or exceed)
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63 (must match)
• Mounting Type: Surface Mount (must match)
• Operating Temperature (TJ): 150°C (must match or exceed)

Substitution Categories:

Direct Substitutes: Parts that meet or exceed all critical electrical parameters while maintaining identical package and mounting specifications.

Parametric Equivalents: Parts with identical electrical ratings and package specifications, differing only in product status or minor performance characteristics.

Similar Substitutes: Parts that exceed the collector current rating (8 A vs. 5 A) while maintaining all other critical parameters, suitable for applications where higher current capability is beneficial.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 2SA2039-TL-E

The 2SA2039-TL-E is the preferred direct substitute for the 2SB1203T-H-TL-E. This part maintains identical electrical specifications (5 A collector current, 50 V breakdown voltage, 200 hFE minimum) and package configuration (TO-252-3 DPAK). The 2SA2039-TL-E is classified as Active, ensuring long-term supply availability. This part is ROHS3 Compliant and carries REACH Unaffected status. Inventory availability is substantial at 10,250 pieces.

Secondary Recommendation: 2SA2097(TE16L1,NQ)

The 2SA2097(TE16L1,NQ) manufactured by Toshiba Semiconductor and Storage is an alternative direct substitute meeting all critical electrical parameters. This part is Active and ROHS3 Compliant. The 2SA2097 exhibits superior saturation voltage characteristics (270mV vs. 550mV) and lower collector cutoff current (100nA vs. 1µA), providing enhanced performance in switching applications. Inventory availability is 1,091 pieces.

Higher Current Alternative: 2SA2040-TL-E

The 2SA2040-TL-E is suitable for applications requiring higher collector current capability (8 A vs. 5 A). This part maintains the 50 V breakdown voltage and identical package specification. The 2SA2040-TL-E is Active and ROHS3 Compliant with substantial inventory (17,400 pieces). This substitute is appropriate when design margins or future current requirements exceed the original 5 A specification.

Avoid: 2SB1204T-TL-E

The 2SB1204T-TL-E is classified as Obsolete and offers no supply advantage over the original part. While it provides higher current capability (8 A), its obsolete status and limited inventory (874 pieces) make it unsuitable for new designs or long-term production support.

Frequently Asked Questions (FAQ)

Q: Can the 2SA2039-TL-E directly replace the 2SB1203T-H-TL-E without circuit modification?

A: Yes. The 2SA2039-TL-E maintains identical electrical specifications (5 A Ic, 50 V Vce, 200 hFE minimum) and package configuration (TO-252-3 DPAK). No circuit modifications are required. The part is pin-compatible and electrically equivalent.

Q: What is the difference between the 2SA2039-TL-E and 2SA2097(TE16L1,NQ)?

A: Both parts meet the critical electrical specifications of the 2SB1203T-H-TL-E. The 2SA2097 exhibits lower saturation voltage (270mV vs. 430mV) and lower collector cutoff current (100nA vs. 1µA), resulting in improved switching performance and reduced leakage. The 2SA2039-TL-E is manufactured by onsemi; the 2SA2097 is manufactured by Toshiba. Selection depends on performance requirements and supplier preference.

Q: Why is the 2SA2040-TL-E listed as a substitute if it has 8 A collector current instead of 5 A?

A: The 2SA2040-TL-E exceeds the minimum electrical requirements of the 2SB1203T-H-TL-E. Higher collector current capability is a superset of the original specification and does not create incompatibility. This part is suitable for applications where design margins or future current demands exceed 5 A. The package, voltage rating, and gain specifications remain identical.

Q: Is the 2SB1204T-TL-E a viable substitute?

A: The 2SB1204T-TL-E is not recommended. Although it meets electrical specifications, it is classified as Obsolete with limited inventory (874 pieces). Selecting an obsolete part does not resolve the supply chain issue that necessitates finding a substitute for the original 2SB1203T-H-TL-E.

Q: Are all substitute parts ROHS3 Compliant?

A: The 2SA2039-TL-E, 2SA2040-TL-E, 2SB1204T-TL-E, and 2SA2097(TE16L1,NQ) are all ROHS3 Compliant. The original 2SB1203T-H-TL-E does not specify RoHS status in the provided data.

Q: What is the significance of the TO-252-3 DPAK package specification?

A: The TO-252-3 DPAK (2 Leads + Tab) package is a standard surface mount configuration with three terminals: collector, emitter, and base. All listed substitutes maintain this identical package specification, ensuring mechanical and electrical compatibility with existing PCB layouts and solder reflow processes. No footprint modifications are required.

Q: Can the 2SA2039-TL-E be used in high-frequency applications?

A: The 2SA2039-TL-E has a transition frequency of 360 MHz, compared to 130 MHz for the original 2SB1203T-H-TL-E. This higher frequency capability makes the 2SA2039-TL-E suitable for applications requiring faster switching speeds. The original design specifications will not be exceeded.

Q: What is the Moisture Sensitivity Level (MSL) for all substitute parts?

A: All substitute parts, including the original 2SB1203T-H-TL-E, carry an MSL rating of 1 (Unlimited). This indicates no moisture sensitivity restrictions and no special storage or handling requirements prior to soldering.