12A02MH-TL-E Equivalent & Substitute Parts

Part Overview

The 12A02MH-TL-E is a Surface Mount Bipolar (BJT) Transistor manufactured by onsemi, classified as a PNP device rated for 12 V collector-emitter breakdown voltage and 1 A maximum collector current. This component is packaged in SC-70/SOT-323 (3-MCPH) configuration and delivers 600 mW maximum power dissipation with a transition frequency of 450 MHz.

The 12A02MH-TL-E is designated 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

12A02MH-TL-E

onsemiIn Stock: 1900212A02MH-TL-E Datasheet

Current PartRFQ

30A02MH-TL-E

onsemiIn Stock: 419430A02MH-TL-E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 12A02MH-TL-E is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Transistor Type: PNP topology required
• Mounting Type: Surface Mount configuration
• Package / Case: 3-MCPH supplier device package
• Maximum Power Dissipation: 600 mW
• Operating Temperature Range: 150°C (TJ) maximum

Allowable Parameter Variations: Substitute parts may exceed the original specifications in the following parameters without compromising backward compatibility:

• Voltage - Collector Emitter Breakdown: Substitute values ≥ 12 V are acceptable
• Current - Collector (Ic) (Max): Substitute values ≥ 1 A are acceptable
• Frequency - Transition: Substitute values ≥ 450 MHz are acceptable
• DC Current Gain (hFE): Substitute values meeting or exceeding minimum specifications are acceptable

The 30A02MH-TL-E qualifies as a direct substitute based on these criteria. It maintains identical mounting type, package configuration, and power rating while providing enhanced voltage and frequency performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 12A02MH-TL-E is classified as Obsolete. The 30A02MH-TL-E is classified as Active, ensuring continued availability and manufacturing support from onsemi.

Compliance & Certification: Both components maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for equivalent applications. Both devices carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Electrical Performance: The 30A02MH-TL-E provides enhanced voltage rating (30 V versus 12 V) and superior transition frequency (520 MHz versus 450 MHz). The maximum collector current is reduced to 700 mA from 1 A; however, this remains within acceptable substitution parameters for applications not requiring the full 1 A specification.

Packaging & Mechanical Compatibility: Both components utilize the 3-MCPH supplier device package in Surface Mount configuration. Physical footprint compatibility is maintained, supporting direct PCB layout substitution without redesign.

Frequently Asked Questions (FAQ)

Q: Can the 30A02MH-TL-E directly replace the 12A02MH-TL-E on existing PCBs?

A: Yes. Both components share identical supplier device package designation (3-MCPH) and Surface Mount mounting type. PCB footprint compatibility is maintained, allowing direct substitution without layout modification.

Q: What is the impact of the reduced maximum collector current (700 mA versus 1 A)?

A: The 30A02MH-TL-E maximum collector current of 700 mA is lower than the original 1 A specification. Applications requiring sustained collector currents exceeding 700 mA require circuit redesign or alternative component selection. Applications operating below 700 mA experience no functional impact.

Q: Does the increased voltage rating (30 V versus 12 V) affect circuit operation?

A: The 30A02MH-TL-E higher voltage rating provides enhanced overvoltage margin and is backward compatible with circuits designed for 12 V operation. No circuit modification is required.

Q: Are there differences in DC current gain between these devices?

A: The 12A02MH-TL-E specifies minimum hFE of 300 @ 10mA, 2V. The 30A02MH-TL-E specifies minimum hFE of 200 @ 10mA, 2V. Applications dependent on higher current gain may require bias network adjustment when substituting the 30A02MH-TL-E.

Q: What is the significance of the transition frequency difference (450 MHz versus 520 MHz)?

A: The 30A02MH-TL-E transition frequency of 520 MHz exceeds the original 450 MHz specification, providing improved high-frequency performance. This enhancement supports applications operating at or near the original frequency limit without degradation.

Q: Are both components RoHS compliant?

A: Yes. Both the 12A02MH-TL-E and 30A02MH-TL-E are ROHS3 compliant and REACH unaffected, satisfying environmental and regulatory requirements for equivalent applications.

Q: What is the difference in Vce saturation characteristics?

A: The 12A02MH-TL-E specifies 240mV @ 20mA, 400mA. The 30A02MH-TL-E specifies 220mV @ 10mA, 200mA. Saturation voltage is measured at different bias points; direct comparison requires evaluation at identical operating conditions specific to the application circuit.