2SC4726TLN Equivalent & Substitute Parts Reference

Part Overview

The 2SC4726TLN by Rohm Semiconductor is a surface-mount NPN bipolar junction transistor (BJT) designed for RF applications, with a maximum collector-emitter voltage of 11V, a collector current of 50mA, a transition frequency of 3.2GHz, and a maximum power dissipation of 150mW. This device is supplied in the SC-75 (SOT-416) EMT3 package and is compliant with RoHS3 and REACH requirements. The product status is "Not For New Designs," making it necessary to identify alternative models for continued design use or ongoing manufacturing support.

Key Parameters

Parameter	Value
Manufacturer Part Number	2SC4726TLN
Manufacturer	Rohm Semiconductor
Category	Transistors, Bipolar (BJT)
Packaging	Cut Tape (CT) & Digi-Reel®
Transistor Type	NPN
Voltage - Collector Emitter Breakdown (Max)	11V
Frequency - Transition	3.2GHz
Noise Figure (dB Typ @ f)	3.5dB @ 500MHz
Power - Max	150mW
DC Current Gain (hFE) (Min) @ Ic, Vce	56 @ 5mA, 10V
Current - Collector (Ic) (Max)	50mA
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	SC-75, SOT-416
Supplier Device Package	EMT3
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute models are determined by direct alignment with key electrical and mechanical parameters for this product category. These substitution criteria are:

Transistor Type (NPN)
Voltage - Collector Emitter Breakdown (Max)
Frequency - Transition
Noise Figure at specified test frequency
Power Dissipation (Max)
DC Current Gain (hFE) at specified Ic, Vce
Maximum Collector Current (Ic)
Operating Temperature Rating
Mounting Type (Surface Mount, Through Hole)
Package / Case and Supplier Device Package
Environmental compliance (RoHS, REACH status, Moisture Sensitivity Level)

Parametric equivalents share all or nearly all specification points, while similar substitutes might vary in parameters such as voltage, current, frequency, noise figure, package, or power rating within the allowed range for this part category.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Frequency - Transition	Noise Figure (dB Typ @ f)	Power - Max	DC Current Gain (hFE) (Min) @ Ic, Vce	Current - Collector (Ic) (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	MSL	REACH Status
2SC4726TLN	Rohm Semiconductor	NPN	11V	3.2GHz	3.5dB @ 500MHz	150mW	56 @ 5mA, 10V	50mA	150°C (TJ)	Surface Mount	SC-75, SOT-416	EMT3	ROHS3	1	Unaffected
2SC4726TLP	Rohm Semiconductor	NPN	11V	3.2GHz	3.5dB @ 500MHz	150mW	56 @ 5mA, 10V	50mA	150°C (TJ)	Surface Mount	SC-75, SOT-416	EMT3	ROHS3	1	Unaffected
2N918 PBFREE	Central Semiconductor Corp	NPN	15V	600MHz	6dB @ 60kHz	200mW	20 @ 3mA, 1V	50mA	-65°C ~ 200°C (TJ)	Through Hole	TO-206AF, TO-72-4	TO-72	ROHS3	1	Unaffected
BFP183WH6327XTSA1	Infineon Technologies	NPN	12V	8.5GHz	0.9dB ~ 1.4dB @ 900MHz ~ 1.8GHz	450mW	70 @ 15mA, 8V	65mA	150°C (TJ)	Surface Mount	SC-82A, SOT-343	PG-SOT343-3D	ROHS3	1	Unaffected
BFP420H6801XTSA1	Infineon Technologies	NPN	5V	25GHz	1.1dB @ 1.8GHz	160mW	60 @ 20mA, 4V	35mA	150°C (TJ)	Surface Mount	SC-82A, SOT-343	PG-SOT343-3D	ROHS3	1	Unaffected
BFR840L3RHESDE6327XTSA1	Infineon Technologies	NPN	2.6V	75GHz	0.5dB @ 450MHz	75mW	150 @ 10mA, 1.8V	35mA	150°C (TJ)	Surface Mount	SC-101, SOT-883	PG-TSLP-3	ROHS3	1	Unaffected

Engineering Selection Recommendations

The 2SC4726TLN is marked as "Not For New Designs." The listed substitutes, including the parametric equivalent 2SC4726TLP and similar alternatives such as BFP183WH6327XTSA1, 2N918 PBFREE, BFP420H6801XTSA1, and BFR840L3RHESDE6327XTSA1, have active product statuses and are RoHS3 compliant and REACH unaffected, with identical moisture sensitivity levels (MSL 1). All substitutes meet or exceed environmental compliance requirements specified for the original part.

Frequently Asked Questions (FAQ)

Q1: What parameters must be matched when selecting a substitute for the 2SC4726TLN?
A1: Key matching parameters include transistor type, breakdown voltage, transition frequency, noise figure, maximum collector current, power dissipation, current gain, operating temperature, mounting type, package/case, and environmental compliance.

Q2: Can a through-hole device such as 2N918 PBFREE be used in surface mount designs?
A2: The 2N918 PBFREE has a through-hole TO-72 package, which differs mechanically from surface-mount packages like SC-75 (SOT-416). Compatibility depends on the design's mounting requirements.

Q3: How do package types affect substitutability?
A3: Substitutability is dependent on mechanical and layout compatibility. Variations in package size and footprint (e.g., SC-75 vs. SOT-343 or TO-72) must be evaluated according to board layout constraints.

Q4: Are environmental certifications consistent across all substitutes?
A4: All listed substitutes are RoHS3 compliant, REACH unaffected, and have a Moisture Sensitivity Level of 1 (unlimited).

Q5: Is it necessary to verify the DC current gain and noise figure at identical test conditions?
A5: Only values provided in the comparison are considered. All selection decisions are based on the explicitly stated test conditions and values.

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