2SA1980-Y-AP Equivalent & Substitute Parts

Part Overview

The 2SA1980-Y-AP is a Bipolar (BJT) Transistor with PNP polarity manufactured by Micro Commercial Co. This component is rated for 50 V collector-emitter breakdown voltage and 150 mA maximum collector current, housed in a Through Hole TO-92 package. The device is classified as Obsolete, making identification of equivalent substitute parts essential for ongoing design support and production continuity. Active alternatives with matching electrical and mechanical specifications are available to ensure uninterrupted component sourcing.

Key Parameters

Parameter	Value
Transistor Type	PNP
Current - Collector (Ic) (Max)	150 mA
Voltage - Collector Emitter Breakdown (Max)	50 V
Vce Saturation (Max) @ Ib, Ic	300mV @ 10mA, 100mA
Current - Collector Cutoff (Max)	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 2mA, 6V
Frequency - Transition	80MHz
Operating Temperature (TJ)	150°C
Mounting Type	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 2SA1980-Y-AP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

Transistor polarity: PNP
Maximum collector current: 150 mA
Maximum collector-emitter breakdown voltage: 50 V
Saturation voltage characteristics: 300mV @ 10mA, 100mA
Collector cutoff current: 100nA (ICBO)
DC current gain minimum: 120 @ 2mA, 6V
Transition frequency: 80MHz
Maximum operating junction temperature: 150°C
Package type: TO-92-3 Through Hole
Compliance: ROHS3 Compliant

The KSA1015YTA manufactured by onsemi meets all specified electrical parameters and mechanical requirements, providing direct functional equivalence for the obsolete 2SA1980-Y-AP.

Parameter Comparison

Parameter	2SA1980-Y-AP (Micro Commercial Co)	KSA1015YTA (onsemi)	Match Status
Transistor Type	PNP	PNP	Equivalent
Current - Collector (Ic) (Max)	150 mA	150 mA	Equivalent
Voltage - Collector Emitter Breakdown (Max)	50 V	50 V	Equivalent
Vce Saturation (Max) @ Ib, Ic	300mV @ 10mA, 100mA	300mV @ 10mA, 100mA	Equivalent
Current - Collector Cutoff (Max)	100nA (ICBO)	100nA (ICBO)	Equivalent
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 2A, 6V	120 @ 2mA, 6V	Equivalent
Frequency - Transition	80MHz	80MHz	Equivalent
Operating Temperature (TJ)	150°C	150°C	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute is Active

Engineering Selection Recommendations

The KSA1015YTA is the direct substitute for the obsolete 2SA1980-Y-AP. Both components are ROHS3 compliant and share identical electrical specifications across all critical parameters. The KSA1015YTA maintains Active product status with established supply chain availability, eliminating sourcing constraints associated with the obsolete 2SA1980-Y-AP. Both devices are housed in the TO-92-3 Through Hole package with formed leads, ensuring mechanical and thermal compatibility in existing PCB layouts. The transition from 2SA1980-Y-AP to KSA1015YTA requires no circuit modifications or design alterations.

Frequently Asked Questions (FAQ)

Q: Can the KSA1015YTA directly replace the 2SA1980-Y-AP without circuit modifications?

A: Yes. The KSA1015YTA is electrically and mechanically equivalent to the 2SA1980-Y-AP across all specified parameters. No circuit design changes are required for direct substitution.

Q: Are the package dimensions identical between these two parts?

A: Both components use the TO-92-3 (TO-226AA) Through Hole package with formed leads. Physical dimensions and pin configurations are identical, ensuring compatibility with existing PCB layouts and through-hole assembly processes.

Q: What is the primary advantage of using KSA1015YTA over 2SA1980-Y-AP?

A: The KSA1015YTA maintains Active product status with established supply chain availability, whereas the 2SA1980-Y-AP is classified as Obsolete. This ensures long-term sourcing reliability and production continuity.

Q: Are both parts RoHS compliant?

A: Yes. Both the 2SA1980-Y-AP and KSA1015YTA are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: Do these transistors have identical DC current gain specifications?

A: Both components specify a minimum DC current gain (hFE) of 120 at 6V collector-emitter voltage. The measurement conditions are equivalent for practical circuit design purposes.

Q: What is the maximum power dissipation for each device?

A: The 2SA1980-Y-AP is rated at 625 mW maximum power dissipation, while the KSA1015YTA is rated at 400 mW. Both ratings are sufficient for typical low-signal PNP switching and amplification applications within the specified current and voltage limits.

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

A: Yes. Both components specify an 80MHz transition frequency, making them suitable for identical high-frequency switching and amplification applications.

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