2N5401RLRM Equivalent & Substitute Parts

Part Overview

The 2N5401RLRM is a PNP bipolar junction transistor manufactured by onsemi, rated for 150 V collector-emitter breakdown voltage and 600 mA maximum collector current. This device is packaged in a Through Hole TO-92 (TO-226-3) configuration and is designed for general-purpose switching and amplification applications. The part is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Substiute Parts

2N5401RLRM

onsemiIn Stock: 12192N5401RLRM Datasheet

Current PartRFQ

2N5401YTA

onsemiIn Stock: 53072N5401YTA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2N5401RLRM is determined by electrical and mechanical parameter compatibility within the PNP bipolar transistor category. The critical parameters that define substitution eligibility are:

• Transistor Type: PNP configuration
• Current Rating: Maximum collector current of 600 mA
• Voltage Rating: Collector-emitter breakdown voltage of 150 V
• Saturation Characteristics: Vce saturation of 500 mV @ 5mA, 50mA
• Current Gain: DC current gain (hFE) minimum of 60 @ 10mA, 5V
• Power Dissipation: Maximum power rating of 625 mW
• Package Type: Through Hole TO-92-3 (TO-226-3) configuration
• Operating Temperature Range: -55°C to 150°C (TJ)

The 2N5401YTA meets all electrical specifications and maintains identical package compatibility, making it a direct functional equivalent. The primary distinction is product status and compliance certification.

Parameter Comparison

*The 2N5401YTA exhibits a higher transition frequency (400 MHz vs. 300 MHz), which represents an enhancement and does not restrict substitution.

Engineering Selection Recommendations

The 2N5401RLRM is classified as obsolete. The 2N5401YTA is the active equivalent part from the same manufacturer (onsemi) and shares the identical base product number (2N5401), confirming direct lineage and compatibility.

Product Status Consideration: The 2N5401YTA is in active production status, ensuring availability and supply chain continuity. The 2N5401RLRM, being obsolete, presents long-term sourcing risk.

Compliance Consideration: The 2N5401YTA is ROHS3 compliant, whereas the 2N5401RLRM is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the 2N5401YTA is the appropriate selection.

Electrical Equivalence: All critical electrical parameters are identical between the two parts. The 2N5401YTA provides superior transition frequency performance (400 MHz vs. 300 MHz), which does not compromise backward compatibility.

Packaging: Both parts utilize identical Through Hole TO-92-3 (TO-226-3) packaging with formed leads, ensuring mechanical and thermal compatibility in existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the 2N5401YTA directly replace the 2N5401RLRM in existing designs?

A: Yes. The 2N5401YTA is electrically and mechanically equivalent to the 2N5401RLRM. All critical parameters—collector current, breakdown voltage, saturation characteristics, current gain, power dissipation, and operating temperature range—are identical. The package configuration (Through Hole TO-92-3) is the same, requiring no PCB modifications.

Q: What is the significance of the higher transition frequency in the 2N5401YTA?

A: The 2N5401YTA operates at 400 MHz transition frequency compared to 300 MHz for the 2N5401RLRM. This represents improved high-frequency performance and does not restrict substitution. Applications operating within the 300 MHz specification of the original part will function identically with the 2N5401YTA.

Q: Why is RoHS compliance important for this substitution?

A: The 2N5401YTA is ROHS3 compliant, while the 2N5401RLRM is RoHS non-compliant. For applications subject to RoHS directives or customer specifications requiring RoHS compliance, the 2N5401YTA is the mandated selection. This is particularly relevant for new designs and products destined for regulated markets.

Q: Are there any thermal or reliability differences between these parts?

A: Both parts share identical maximum power dissipation (625 mW) and operating temperature range (-55°C to 150°C TJ). No thermal or reliability differences exist between the two devices.

Q: What packaging options are available for these parts?

A: Both the 2N5401RLRM and 2N5401YTA are supplied in Through Hole TO-92-3 (TO-226-3) packaging with formed leads. The 2N5401YTA is additionally available in Cut Tape (CT) packaging format for automated assembly processes.

Q: Is the 2N5401RLRM still available for purchase?

A: The 2N5401RLRM is classified as obsolete. While legacy inventory may exist, the 2N5401YTA is the active production equivalent and is the recommended selection for new purchases and ongoing production requirements.