2N4403RLRPG Equivalent & Substitute Parts

Part Overview

The 2N4403RLRPG is a PNP bipolar junction transistor manufactured by onsemi, rated for 40 V collector-emitter breakdown voltage and 600 mA maximum collector current. This device is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing production and repair applications. The 2N4403RLRPG shares the same base product number (2N4403) with multiple active variants that maintain identical electrical specifications and mechanical compatibility.

Substiute Parts

2N4403RLRPG

onsemiIn Stock: 34332N4403RLRPG Datasheet

Current PartRFQ

2N4403TA

onsemiIn Stock: 601242N4403TA Datasheet

DirectRFQ

2N4403TAR

onsemiIn Stock: 205002N4403TAR Datasheet

DirectRFQ

2N4403TF

onsemiIn Stock: 15122N4403TF Datasheet

DirectRFQ

2N4403TFR

onsemiIn Stock: 23282N4403TFR Datasheet

DirectRFQ

2N4403-AP

Micro Commercial CoIn Stock: 15682N4403-AP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2N4403RLRPG is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Transistor Type: PNP
• Voltage - Collector Emitter Breakdown (Max): 40 V
• Current - Collector (Ic) (Max): 600 mA
• Power - Max: 625 mW (or 600 mW minimum)
• Frequency - Transition: 200 MHz
• DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 150mA, 2V
• Vce Saturation (Max) @ Ib, Ic: 750mV @ 50mA, 500mA
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: TO-226-3 or TO-92-3 (TO-226AA) Formed Leads

All substitute parts listed below meet these criteria without exception. Substitutes are grouped into two categories: Direct Manufacturer Equivalents (onsemi variants) and Similar Manufacturer Alternatives (alternative manufacturers).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (onsemi Active Variants):

The 2N4403TA, 2N4403TAR, 2N4403TF, and 2N4403TFR are all active onsemi products that provide direct electrical and mechanical equivalence to the obsolete 2N4403RLRPG. These variants differ only in packaging format (Cut Tape) and are ROHS3 compliant. Selection among these four active onsemi variants should be based on inventory availability and packaging requirements for procurement workflows.

• 2N4403TA: 60,100 units in stock. Recommended for high-volume applications requiring immediate availability.
• 2N4403TAR: 20,400 units in stock. Suitable for standard production requirements.
• 2N4403TFR: 2,300 units in stock. Available for applications with moderate volume needs.
• 2N4403TF: 1,500 units in stock. Limited availability; suitable for low-volume or prototype applications.

Secondary Substitute (Alternative Manufacturer):

The 2N4403-AP, manufactured by Micro Commercial Co, is classified as obsolete and carries identical electrical specifications with the exception of unspecified maximum collector current and 600 mW maximum power rating (versus 625 mW). This part is not recommended for new designs due to its obsolete status. It may be considered only for legacy system maintenance where original part sourcing is critical.

Compliance Considerations:

All active onsemi substitutes (2N4403TA, 2N4403TAR, 2N4403TF, 2N4403TFR) are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement. The 2N4403RLRPG and 2N4403-AP do not specify ROHS compliance status.

Frequently Asked Questions (FAQ)

Q: Can the 2N4403TA directly replace the 2N4403RLRPG in existing circuit designs?

A: Yes. The 2N4403TA maintains identical electrical specifications (40 V breakdown voltage, 600 mA collector current, 625 mW power dissipation, 200 MHz transition frequency, and DC current gain of 100 @ 150mA, 2V) and mechanical compatibility (Through Hole, TO-92-3 package). No circuit modifications are required.

Q: What is the difference between 2N4403TA, 2N4403TAR, 2N4403TF, and 2N4403TFR?

A: These four onsemi variants are electrically and mechanically identical. The differences are in packaging format (all are Cut Tape) and inventory levels. The letter designations (TA, TAR, TF, TFR) represent different manufacturing batches or packaging configurations within onsemi's product line. Selection should be based on procurement availability and supply chain requirements.

Q: Is the 2N4403-AP a suitable replacement?

A: The 2N4403-AP is electrically equivalent but is classified as obsolete. It is not recommended for new designs. Use only for legacy system maintenance where original part sourcing is necessary. Prefer active onsemi variants (2N4403TA, 2N4403TAR, 2N4403TF, 2N4403TFR) for all new applications.

Q: Are all substitute parts ROHS compliant?

A: The four active onsemi variants (2N4403TA, 2N4403TAR, 2N4403TF, 2N4403TFR) are ROHS3 compliant. The 2N4403RLRPG and 2N4403-AP do not specify ROHS compliance status. For applications requiring ROHS certification, use only the active onsemi substitutes.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the same temperature range: -55°C to 150°C (junction temperature). This matches the 2N4403RLRPG specification.

Q: Can I use these parts interchangeably in high-frequency applications?

A: Yes. All substitute parts maintain the 200 MHz transition frequency specification, ensuring equivalent performance in high-frequency switching and amplification circuits.

Q: Which substitute part should I select for immediate procurement?

A: The 2N4403TA is recommended for immediate procurement due to the highest inventory level (60,100 units in stock). For standard production volumes, the 2N4403TAR (20,400 units) is also suitable. Both are active products with full ROHS3 compliance.