PN2222-L-AP Equivalent & Substitute Parts

Part Overview

The PN2222-L-AP is a small-signal NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 600 mA, collector-emitter breakdown voltage of 30 V, and a transition frequency of 300 MHz in a through-hole TO-92 package.

The PN2222-L-AP is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement. Substitute parts must maintain electrical compatibility across critical parameters including collector current rating, voltage specifications, gain characteristics, and thermal performance while accommodating the through-hole TO-92 package format.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	600	mA
Voltage - Collector Emitter Breakdown (Max)	30	V
Vce Saturation (Max) @ Ib, Ic	1 V @ 50 mA, 500 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min @ Ic, Vce	100 @ 1 mA, 10 V	—
Power - Max	625	mW
Frequency - Transition	300	MHz
Operating Temperature Range	−55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-92-3 (TO-226AA)	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the PN2222-L-AP are classified into two categories based on electrical parameter alignment:

Direct Substitutes maintain identical or equivalent electrical specifications across all critical parameters. These parts satisfy the following criteria:

Collector current rating of 600 mA
Collector-emitter breakdown voltage of 30 V
Maximum power dissipation of 625 mW
Transition frequency of 300 MHz
DC current gain (hFE) minimum of 100
Through-hole TO-92-3 package configuration
NPN transistor type

Similar Substitutes provide functional equivalence with relaxed voltage specifications. These parts meet all criteria above except for an elevated collector-emitter breakdown voltage rating, which provides additional design margin in applications not requiring the 30 V specification.

Parameter Comparison

Parameter	PN2222-L-AP (Micro Commercial Co)	PN2222TA (onsemi)	PN2222TF (Fairchild Semiconductor)	KSP2222ATA (Fairchild Semiconductor)
Transistor Type	NPN	NPN	NPN	NPN
Current - Collector (Ic) Max	600 mA	600 mA	600 mA	600 mA
Voltage - Collector Emitter Breakdown (Max)	30 V	30 V	30 V	40 V
Vce Saturation (Max) @ Ib, Ic	1 V @ 50 mA, 500 mA	1 V @ 50 mA, 500 mA	1 V @ 50 mA, 500 mA	1 V @ 50 mA, 500 mA
Current - Collector Cutoff (Max)	100 nA	10 nA	10 nA	10 nA
DC Current Gain (hFE) Min	100 @ 1 mA, 10 V	100 @ 150 mA, 10 mV	100 @ 150 mA, 10 mV	100 @ 150 mA, 10 V
Power - Max	625 mW	625 mW	625 mW	625 mW
Frequency - Transition	300 MHz	300 MHz	300 MHz	300 MHz
Operating Temperature (Max)	150°C	150°C	150°C	150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-92-3	TO-92-3	TO-92-3	TO-92-3
Product Status	Obsolete	Last Time Buy	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not Specified	Not Specified

Engineering Selection Recommendations

PN2222TA (onsemi) and PN2222TF (Fairchild Semiconductor) are direct electrical equivalents to the PN2222-L-AP. Both parts maintain the 30 V collector-emitter breakdown voltage specification and satisfy all electrical parameters required for pin-compatible replacement. PN2222TF is classified as active product status with substantial inventory availability, making it the preferred selection for new designs and ongoing procurement. PN2222TA carries last-time-buy status, indicating limited future availability.

KSP2222ATA (Fairchild Semiconductor) functions as a similar substitute with an elevated 40 V collector-emitter breakdown voltage rating. This part is suitable for applications where the 30 V specification is not a design constraint and where the additional voltage margin provides system benefit. KSP2222ATA is active product status with high inventory levels.

All substitute parts maintain ROHS3 compliance or equivalent environmental standards, through-hole TO-92-3 package compatibility, and identical thermal operating ranges. Selection between direct and similar substitutes depends on circuit voltage requirements and design margin considerations.

Frequently Asked Questions (FAQ)

Q: Can PN2222TA or PN2222TF be used as direct replacements for PN2222-L-AP?

A: Yes. Both PN2222TA and PN2222TF maintain identical electrical specifications across collector current (600 mA), collector-emitter breakdown voltage (30 V), power dissipation (625 mW), transition frequency (300 MHz), and package configuration (TO-92-3). These parts are pin-compatible and electrically equivalent for circuit applications.

Q: What is the difference between direct substitutes and the KSP2222ATA?

A: KSP2222ATA differs in collector-emitter breakdown voltage rating, specified at 40 V versus 30 V for direct substitutes. All other electrical parameters remain equivalent. The elevated voltage rating provides additional design margin in applications not constrained by the 30 V specification.

Q: Are all substitute parts available in the same packaging format?

A: Yes. PN2222TA, PN2222TF, and KSP2222ATA are all supplied in through-hole TO-92-3 package configuration with formed leads (TO-226AA), matching the PN2222-L-AP package specification. This ensures mechanical and electrical compatibility in existing PCB layouts.

Q: Which substitute part should be selected for new designs?

A: PN2222TF (Fairchild Semiconductor) is recommended for new designs due to active product status and high inventory availability. This part maintains full electrical equivalence to PN2222-L-AP and ensures long-term supply continuity.

Q: Do substitute parts maintain RoHS compliance?

A: PN2222TA and PN2222TF are ROHS3 compliant, matching the PN2222-L-AP environmental standard. KSP2222ATA RoHS status is not specified in available documentation.

Q: Can KSP2222ATA be used in applications designed for 30 V operation?

A: Yes. KSP2222ATA is rated for 40 V collector-emitter breakdown voltage, which exceeds the 30 V requirement. The part functions correctly in circuits designed for 30 V operation with additional voltage margin.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by collector current rating (600 mA), collector-emitter breakdown voltage (30 V minimum), maximum power dissipation (625 mW), transition frequency (300 MHz), DC current gain (hFE minimum 100), and through-hole TO-92-3 package format. All substitute parts meet these criteria.

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