2SA2222 PNP Bipolar Junction Transistor Equivalent & Substitute Parts

Part Overview

The 2SA2222 is a PNP bipolar junction transistor manufactured by onsemi, rated for 50 V collector-emitter breakdown voltage and 10 A maximum collector current in a TO-220ML through-hole package. This device is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility within the specified parameter ranges while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	10	A
Voltage - Collector Emitter Breakdown (Max)	50	V
Vce Saturation (Max) @ Ib, Ic	500mV @ 300mA, 6A	—
Current - Collector Cutoff (Max)	10	µA
DC Current Gain (hFE) (Min) @ Ic, Vce	150 @ 270mA, 2V	—
Power - Max	2	W
Frequency - Transition	230	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3 Full Pack	—

Substitute Part Grouping Explanation

Substitution eligibility for the 2SA2222 is determined by the following critical electrical and mechanical parameters:

Primary Compatibility Criteria:

Transistor type must be PNP
Collector-emitter breakdown voltage (VCEO) must be greater than or equal to 50 V
Maximum collector current (Ic) must be greater than or equal to 10 A
Mounting type must be through-hole
Package type must be TO-220 series (TO-220-3 Full Pack)
Operating temperature range must support 150°C (TJ)

Secondary Compatibility Considerations:

Vce saturation characteristics
DC current gain (hFE) specifications
Transition frequency
Current-collector cutoff (ICBO) ratings

Parts meeting these criteria are classified as direct or similar substitutes based on the degree of parameter alignment with the 2SA2222 baseline specifications.

Parameter Comparison

Parameter	2SA2222	2SA2222SG	2SA1567	2SA2007E
Manufacturer	onsemi	onsemi	Sanken Electric USA Inc.	Rohm Semiconductor
Product Status	Obsolete	Active	Active	Not For New Designs
Transistor Type	PNP	PNP	PNP	PNP
Current - Collector (Ic) (Max)	10 A	10 A	12 A	12 A
Voltage - Collector Emitter Breakdown (Max)	50 V	50 V	50 V	60 V
Vce Saturation (Max) @ Ib, Ic	500mV @ 300mA, 6A	500mV @ 300mA, 6A	350mV @ 300mA, 6A	500mV @ 400mA, 8A
Current - Collector Cutoff (Max)	10 µA	10 µA	100 µA	10 µA
DC Current Gain (hFE) (Min) @ Ic, Vce	150 @ 270mA, 2V	150 @ 270mA, 2V	50 @ 6A, 1V	320 @ 2A, 2V
Power - Max	2 W	25 W	35 W	25 W
Frequency - Transition	230 MHz	230 MHz	40 MHz	80 MHz
Operating Temperature (TJ)	150°C	150°C	150°C	150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Supplier Device Package	TO-220ML	TO-220ML	TO-220F	TO-220FN
RoHS Status	—	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	—	REACH Unaffected

Engineering Selection Recommendations

2SA2222SG (Direct Substitute - Recommended)

The 2SA2222SG is the primary recommended substitute for the obsolete 2SA2222. Both parts are manufactured by onsemi and share identical electrical specifications across all critical parameters: 10 A collector current, 50 V breakdown voltage, 500 mV Vce saturation, 150 hFE minimum, and 230 MHz transition frequency. The 2SA2222SG is classified as active product status and is ROHS3 compliant, making it suitable for new designs. The primary difference is increased maximum power rating (25 W versus 2 W) and packaging format (tube versus full pack), both of which provide enhanced capability without compromising compatibility. This part is available in production quantities (2120 pcs in stock).

2SA1567 (Similar Substitute - Application Dependent)

The 2SA1567 manufactured by Sanken Electric USA Inc. meets the primary compatibility criteria with 12 A collector current (exceeds 10 A requirement), 50 V breakdown voltage, and through-hole TO-220 mounting. This part is active product status and RoHS compliant. However, electrical characteristics differ in transition frequency (40 MHz versus 230 MHz), DC current gain (50 hFE @ 6A, 1V versus 150 hFE @ 270mA, 2V), and Vce saturation (350 mV versus 500 mV). The 2SA1567 is suitable for applications where lower frequency operation and improved saturation characteristics are acceptable. Current collector cutoff is elevated at 100 µA compared to 10 µA baseline.

2SA2007E (Similar Substitute - Limited Application)

The 2SA2007E manufactured by Rohm Semiconductor meets primary compatibility criteria with 12 A collector current, 60 V breakdown voltage (exceeds 50 V requirement), and through-hole TO-220 mounting. This part is ROHS3 compliant and REACH unaffected. However, product status is classified as "Not For New Designs," limiting its use to legacy system maintenance or replacement applications only. Electrical characteristics include 80 MHz transition frequency (lower than 230 MHz baseline), 320 hFE minimum (higher than baseline), and 500 mV Vce saturation. This part is not recommended for new design implementations.

Frequently Asked Questions (FAQ)

Q: Can the 2SA2222SG be used as a direct replacement for the 2SA2222 in existing designs?

A: Yes. The 2SA2222SG is electrically identical to the 2SA2222 across all critical parameters: collector current (10 A), breakdown voltage (50 V), Vce saturation (500 mV @ 300mA, 6A), DC current gain (150 hFE @ 270mA, 2V), and transition frequency (230 MHz). Both parts use the TO-220-3 package configuration. The 2SA2222SG is active product status and ROHS3 compliant, making it the preferred substitute for the obsolete 2SA2222.

Q: What are the key differences between the 2SA2222 and 2SA1567?

A: The 2SA1567 provides higher collector current capability (12 A versus 10 A) and improved saturation characteristics (350 mV versus 500 mV Vce saturation). However, transition frequency is significantly lower (40 MHz versus 230 MHz), and DC current gain is lower (50 hFE @ 6A, 1V versus 150 hFE @ 270mA, 2V). The 2SA1567 is suitable for lower-frequency applications where saturation performance is critical. Both parts share 50 V breakdown voltage and 150°C operating temperature.

Q: Is the 2SA2007E suitable for new product designs?

A: No. The 2SA2007E is classified as "Not For New Designs" by the manufacturer. This part is restricted to legacy system maintenance and replacement applications only. For new designs, use the 2SA2222SG, which is active product status and fully compliant with current manufacturing standards.

Q: What is the significance of the increased power rating in the 2SA2222SG (25 W versus 2 W)?

A: The increased power rating in the 2SA2222SG (25 W) provides enhanced thermal capability and margin compared to the 2SA2222 (2 W). This does not affect electrical compatibility but allows the 2SA2222SG to operate safely in applications with higher power dissipation. The part remains electrically identical across all specified parameters.

Q: Are all substitute parts available in the same package configuration?

A: All substitute parts use the TO-220-3 full pack configuration. However, supplier device packages differ: 2SA2222SG uses TO-220ML, 2SA1567 uses TO-220F, and 2SA2007E uses TO-220FN. These are mechanical variants within the TO-220-3 family and are physically compatible with standard TO-220 mounting hardware and PCB layouts.

Q: What compliance certifications should be verified for new designs?

A: For new designs, verify RoHS compliance and REACH status. The 2SA2222SG is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The 2SA1567 is RoHS compliant and the 2SA2007E is ROHS3 compliant and REACH unaffected. All three parts carry EAR99 ECCN classification and 8541.29.0075 HTSUS code.

Q: Can the 2SA1567 be used in high-frequency applications designed for the 2SA2222?

A: No. The 2SA1567 transition frequency (40 MHz) is significantly lower than the 2SA2222 baseline (230 MHz). Applications requiring high-frequency operation must use the 2SA2222SG, which maintains the 230 MHz transition frequency specification. The 2SA1567 is suitable only for applications where lower frequency operation is acceptable.

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