MPS2222-L-AP Equivalent & Substitute Parts

Part Overview

The MPS2222-L-AP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, rated for 30V collector-emitter breakdown voltage and 600mA maximum collector current. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. The TO-92 through-hole package and small-signal switching characteristics make this transistor suitable for general-purpose amplification and switching applications in legacy and new designs requiring compatible alternatives.

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	1V @ 50mA, 500mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min @ Ic, Vce	100 @ 1mA, 10V	—
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

Substitution of the MPS2222-L-AP is determined by electrical and mechanical parameter compatibility within the NPN bipolar transistor category. The critical parameters governing substitution are:

Electrical Compatibility Criteria:

Transistor type (NPN)
Maximum collector current (600 mA minimum)
Collector-emitter breakdown voltage (30V minimum)
DC current gain (hFE ≥ 100)
Power dissipation (625 mW minimum)
Transition frequency (300 MHz minimum)

Mechanical Compatibility Criteria:

Through-hole mounting type
TO-92-3 package configuration

Substitute parts are classified into two categories:

Direct Substitutes: Parts meeting or exceeding all electrical parameters at identical or lower voltage ratings (30V), maintaining full functional equivalence.

Similar Substitutes: Parts exceeding voltage ratings (40V) while maintaining all other electrical specifications, suitable for applications where higher voltage margin is acceptable.

Parameter Comparison

Parameter	MPS2222-L-AP (Main)	PN2222TA (Direct)	PN2222TF (Direct)	KSP2222ATA (Similar)
Manufacturer	Micro Commercial Co	onsemi	Fairchild Semiconductor	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	1V @ 50mA, 500mA	1V @ 50mA, 500mA	1V @ 50mA, 500mA	1V @ 50mA, 500mA
Current - Collector Cutoff (Max)	100 nA	10 nA	10 nA	10 nA
DC Current Gain (hFE) Min	100 @ 1mA, 10V	100 @ 150mA, 10mV	100 @ 150mA, 10mV	100 @ 150mA, 10V
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

PN2222TF (Recommended Primary Substitute)

The PN2222TF manufactured by Fairchild Semiconductor is the recommended primary substitute for the MPS2222-L-AP. This part maintains identical electrical specifications across all critical parameters: 600mA collector current, 30V breakdown voltage, 625mW power rating, and 300MHz transition frequency. The PN2222TF carries active product status, ensuring long-term availability and supply chain continuity. Inventory availability of 64,868 units supports immediate procurement requirements. The TO-92-3 package provides direct mechanical compatibility with existing through-hole designs.

PN2222TA (Secondary Substitute)

The PN2222TA manufactured by onsemi provides full electrical equivalence to the MPS2222-L-AP with identical voltage and current ratings. This part is classified as Last Time Buy, indicating limited future availability. Selection of PN2222TA is appropriate for applications where onsemi component qualification is required or where existing supply agreements favor this manufacturer. Inventory of 4,556 units supports near-term requirements.

KSP2222ATA (Higher Voltage Alternative)

The KSP2222ATA manufactured by Fairchild Semiconductor operates at 40V collector-emitter breakdown voltage, exceeding the 30V specification of the MPS2222-L-AP. This part maintains all other electrical parameters identically and provides enhanced voltage margin for applications subject to transient overvoltage conditions. The KSP2222ATA is active product status with 55,200 units in inventory. Selection of this part is appropriate where circuit design permits higher voltage operation or where voltage headroom is beneficial for system reliability.

Frequently Asked Questions (FAQ)

Q: Can PN2222TA be used as a direct replacement for MPS2222-L-AP?

A: Yes. The PN2222TA meets all electrical specifications of the MPS2222-L-AP: 600mA collector current, 30V breakdown voltage, 625mW power dissipation, 300MHz transition frequency, and identical saturation characteristics. Both devices use the TO-92-3 package. Electrical and mechanical compatibility is complete.

Q: What is the difference between PN2222TF and PN2222TA?

A: Both parts share identical electrical specifications and package configuration. The primary differences are manufacturer (Fairchild Semiconductor versus onsemi), product status (Active versus Last Time Buy), and packaging format (Bulk versus Cut Tape). PN2222TF is recommended for new designs due to active status and higher inventory availability.

Q: Why is KSP2222ATA listed as a similar substitute rather than a direct substitute?

A: The KSP2222ATA operates at 40V collector-emitter breakdown voltage, compared to 30V for the MPS2222-L-AP. While all other electrical parameters are identical, the higher voltage rating classifies this part as a similar substitute. It is suitable for applications where the circuit design permits 40V operation or where additional voltage margin is desired.

Q: Are all substitute parts RoHS compliant?

A: The MPS2222-L-AP and PN2222TA are specified as ROHS3 Compliant. RoHS compliance status is not specified in the provided data for PN2222TF and KSP2222ATA. Compliance verification with component suppliers is required for applications with RoHS requirements.

Q: Can these transistors be used in surface-mount applications?

A: No. All listed parts, including the MPS2222-L-AP and its substitutes, are through-hole mounted devices in TO-92-3 package configuration. Surface-mount alternatives require separate component selection.

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

A: The PN2222TA, PN2222TF, and KSP2222ATA all support maximum junction temperature of 150°C. The MPS2222-L-AP specifies -55°C to 150°C operating range. Minimum operating temperature specifications for substitute parts are not provided in the available data.

Q: Is there a difference in DC current gain between the main part and substitutes?

A: The MPS2222-L-AP specifies minimum hFE of 100 at 1mA collector current and 10V Vce. The PN2222TA, PN2222TF, and KSP2222ATA specify minimum hFE of 100 at 150mA collector current and different Vce conditions. Both specifications meet the minimum hFE requirement of 100, with differences in the test conditions rather than the gain value itself.

Q: What inventory considerations should guide part selection?

A: PN2222TF has the highest inventory availability at 64,868 units, supporting large-volume procurement. PN2222TA has 4,556 units available but is classified as Last Time Buy, indicating declining availability. KSP2222ATA has 55,200 units in stock. For long-term supply security, PN2222TF is the preferred choice.

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