2SC4656JRL Equivalent & Substitute Parts

Part Overview

The 2SC4656JRL is an NPN bipolar junction transistor manufactured by Panasonic Electronic Components, designed for general-purpose switching and amplification applications. This device features a 50V collector-emitter breakdown voltage, 50mA maximum collector current, and 250MHz transition frequency in a surface mount SSMini3-F1 package. The product is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

2SC4656JRL

Panasonic Electronic ComponentsIn Stock: 7912SC4656JRL Datasheet

Current PartRFQ

2SC4725TLP

Rohm SemiconductorIn Stock: 46582SC4725TLP Datasheet

SimilarRFQ

2SCR523EBTL

Rohm SemiconductorIn Stock: 5013082SCR523EBTL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC4656JRL is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Electrical Compatibility Requirements:

• Transistor type must be NPN
• Voltage - Collector Emitter Breakdown (Max) must equal or exceed 50V
• Current - Collector (Ic) (Max) must equal or exceed 50mA
• Power dissipation capability must support 125mW minimum
• Frequency - Transition must support 250MHz minimum operation

Mechanical Compatibility Requirements:

• Mounting type must be Surface Mount
• Package must be compatible with SC-89 or SOT-490 footprint specifications
• Moisture Sensitivity Level must be 1 (Unlimited) or equivalent

Identified Substitutes:

The 2SC4725TLP does not meet substitution criteria due to insufficient voltage rating (20V maximum versus 50V required).

The 2SCR523EBTL meets all electrical and mechanical substitution criteria, providing equal voltage rating (50V), higher current capability (100mA versus 50mA), superior frequency performance (350MHz versus 250MHz), and compatible surface mount packaging (SC-89, SOT-416).

Parameter Comparison

Engineering Selection Recommendations

2SC4725TLP: This part does not qualify as a functional substitute. The maximum collector-emitter breakdown voltage of 20V is insufficient for applications requiring the 50V rating of the 2SC4656JRL. Selection of this part would result in component failure under specified operating conditions.

2SCR523EBTL: This part qualifies as a direct functional substitute. It maintains the required 50V collector-emitter breakdown voltage, provides equal or superior electrical performance across all critical parameters, and is manufactured by Rohm Semiconductor as an active product with ROHS3 compliance and REACH unaffected status. The SC-89 package footprint is compatible with the original design. Higher current capability (100mA) and superior frequency performance (350MHz) provide additional design margin. Operating temperature rating of 150°C exceeds the original 125°C specification.

Frequently Asked Questions (FAQ)

Q: Can the 2SC4725TLP be used as a substitute for the 2SC4656JRL?

A: No. The 2SC4725TLP has a maximum collector-emitter breakdown voltage of 20V, which is insufficient for applications designed for the 50V rating of the 2SC4656JRL. This voltage limitation makes it unsuitable for direct substitution.

Q: What makes the 2SCR523EBTL a valid substitute?

A: The 2SCR523EBTL meets all critical electrical parameters: 50V collector-emitter breakdown voltage (equal to original), 100mA maximum collector current (exceeds 50mA requirement), 150mW power dissipation (exceeds 125mW requirement), and 350MHz transition frequency (exceeds 250MHz requirement). The SC-89 package footprint is compatible with the original design. The part is manufactured by Rohm Semiconductor as an active product with current availability.

Q: Are there package compatibility concerns with the 2SCR523EBTL?

A: The 2SCR523EBTL uses SC-89 (SOT-416) packaging, which is compatible with the original 2SC4656JRL SC-89 (SOT-490) footprint for surface mount applications. Both packages are surface mount configurations with equivalent land patterns for PCB assembly.

Q: Does the 2SCR523EBTL meet environmental compliance requirements?

A: Yes. The 2SCR523EBTL is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: What is the significance of the higher DC current gain in the 2SC4656JRL compared to the 2SCR523EBTL?

A: The 2SC4656JRL specifies a minimum DC current gain (hFE) of 250 at 2mA and 10V, while the 2SCR523EBTL specifies 120 at 1mA and 6V. These measurements are taken at different operating points. The 2SCR523EBTL provides sufficient gain for the specified application requirements and maintains functional compatibility.

Q: Is the higher operating temperature rating of the 2SCR523EBTL (150°C versus 125°C) a concern?

A: No. The higher operating temperature rating of the 2SCR523EBTL provides additional thermal margin and does not create compatibility issues. The part operates within the same temperature range as the original design and extends the maximum allowable junction temperature.