2PC4081S-QF Equivalent & Substitute Parts

Part Overview

The 2PC4081S-QF is an NPN bipolar junction transistor manufactured by Nexperia USA Inc. in the SOT-323 surface mount package. This device is rated for 50 V collector-emitter breakdown voltage, 150 mA maximum collector current, and 200 mW power dissipation. The part carries automotive-grade qualification (AEC-Q101) and is RoHS3 compliant. The 2PC4081S-QF remains in active production status. Equivalent and substitute parts are identified based on matching electrical characteristics, package specifications, and compliance certifications to ensure direct functional interchangeability in circuit applications.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Collector Current (Max)	150	mA
Collector-Emitter Breakdown Voltage (Max)	50	V
Vce Saturation (Max)	400	mV @ 5mA, 50mA
Collector Cutoff Current (Max)	100	nA
DC Current Gain (hFE Min)	270	@ 1mA, 6V
Power Dissipation (Max)	200	mW
Transition Frequency	100	MHz
Operating Temperature (Max)	150	°C
Package Type	SOT-323 (SC-70)	Surface Mount
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitute parts for the 2PC4081S-QF are identified as parametric equivalents based on matching all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters:

Transistor Type: NPN configuration
Collector Current Rating: 150 mA maximum
Collector-Emitter Breakdown Voltage: 50 V maximum
Vce Saturation Characteristics: 400 mV @ 5mA, 50mA
DC Current Gain (hFE): 270 minimum @ 1mA, 6V
Power Dissipation: 200 mW maximum
Transition Frequency: 100 MHz
Operating Temperature: 150°C maximum junction temperature
Package: SOT-323 surface mount
Compliance: AEC-Q101 automotive qualification, RoHS3 compliance

All substitute parts listed maintain identical electrical performance characteristics and package specifications. Variations in packaging format (Tape & Reel versus Bulk) and moisture sensitivity level do not affect functional interchangeability in circuit applications.

Parameter Comparison

Parameter	2PC4081S-QF	2PC4081S,115	2PC4081S,135
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	NXP USA Inc.
Transistor Type	NPN	NPN	NPN
Collector Current (Max)	150 mA	150 mA	150 mA
Collector-Emitter Breakdown Voltage (Max)	50 V	50 V	50 V
Vce Saturation (Max)	400 mV @ 5mA, 50mA	400 mV @ 5mA, 50mA	400 mV @ 5mA, 50mA
Collector Cutoff Current (Max)	100 nA	100 nA	100 nA
DC Current Gain (hFE Min)	270 @ 1mA, 6V	270 @ 1mA, 6V	270 @ 1mA, 6V
Power Dissipation (Max)	200 mW	200 mW	200 mW
Transition Frequency	100 MHz	100 MHz	100 MHz
Operating Temperature (Max)	150°C	150°C	150°C
Package Type	SOT-323	SOT-323	SOT-323
Grade	Automotive	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts—2PC4081S-QF, 2PC4081S,115, and 2PC4081S,135—are functionally equivalent and maintain active production status. Selection among these parts is determined by packaging and supply chain requirements rather than electrical performance differences.

2PC4081S-QF is supplied in Tape & Reel format, suitable for automated assembly processes requiring continuous component feeding.

2PC4081S,115 is supplied in Tape & Reel format with specified Moisture Sensitivity Level (MSL) 1 rating, indicating unlimited shelf life under standard storage conditions.

2PC4081S,135 is supplied in Bulk packaging format, suitable for applications where component quantity requirements do not justify tape and reel packaging or where bulk inventory management is preferred.

All three parts carry automotive-grade qualification (AEC-Q101) and are suitable for automotive and industrial applications requiring high reliability. The electrical performance, thermal characteristics, and frequency response are identical across all three variants. Selection should be based on procurement specifications, assembly equipment compatibility, and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can 2PC4081S,115 be used as a direct replacement for 2PC4081S-QF?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, power ratings, frequency response, and automotive qualification. The difference is packaging format: 2PC4081S-QF is supplied in Tape & Reel, while 2PC4081S,115 is also supplied in Tape & Reel with documented MSL rating. Both are suitable for direct substitution in circuit applications.

Q: What is the difference between 2PC4081S,115 and 2PC4081S,135?

A: The primary difference is packaging format. 2PC4081S,115 is supplied in Tape & Reel format, while 2PC4081S,135 is supplied in Bulk format. All electrical characteristics, performance parameters, and compliance certifications are identical. Selection depends on assembly process requirements and inventory management practices.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry automotive-grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards. All are suitable for automotive and industrial applications.

Q: Does the SOT-323 package differ between these parts?

A: No. All three parts use the SOT-323 (SC-70) surface mount package with identical pin configuration, dimensions, and thermal characteristics. They are mechanically and electrically interchangeable at the package level.

Q: What is the significance of MSL 1 rating on 2PC4081S,115?

A: Moisture Sensitivity Level 1 indicates unlimited shelf life under standard storage conditions (typically 30°C, 85% relative humidity). This specification does not affect functional performance but indicates extended storage capability without requiring special moisture control measures.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Yes. All three parts have identical transition frequency specifications of 100 MHz and identical DC current gain characteristics. They perform identically in frequency-dependent circuit applications within the specified operating range.

Q: What compliance standards apply to all three parts?

A: All three parts are RoHS3 compliant (with 2PC4081S,135 compliance not explicitly specified in provided data), REACH Unaffected, and classified under ECCN EAR99. All carry AEC-Q101 automotive qualification.

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