2SA1980-L-AP Equivalent & Substitute Parts

Part Overview

The 2SA1980-L-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, necessitating identification of active equivalent components for ongoing production and maintenance applications. Substitute parts must maintain electrical and mechanical compatibility while offering current availability and active product status.

Substiute Parts

2SA1980-L-AP

Micro Commercial CoIn Stock: 11982SA1980-L-AP Datasheet

Current PartRFQ

KSA1015YTA

onsemiIn Stock: 59898KSA1015YTA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 2SA1980-L-AP are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters (Must Match):

• 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)
• Frequency - Transition: 80MHz
• Operating Temperature (TJ): 150°C

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant

The KSA1015YTA meets all specified electrical and mechanical parameters. Variations in maximum power dissipation (625 mW vs. 400 mW) and DC current gain specifications do not disqualify substitution when the substitute part meets or exceeds the minimum required electrical performance for the application.

Parameter Comparison

Engineering Selection Recommendations

The KSA1015YTA manufactured by onsemi is a direct electrical and mechanical substitute for the obsolete 2SA1980-L-AP. Both components share identical critical electrical specifications including collector current rating, breakdown voltage, saturation voltage, cutoff current, transition frequency, and operating temperature range. Both are housed in the TO-92-3 package with formed leads and meet ROHS3 compliance requirements.

The primary distinction is product status: the 2SA1980-L-AP is obsolete with limited inventory availability, while the KSA1015YTA is an active product with substantial inventory (59,815 pieces in stock). The KSA1015YTA is supplied in Cut Tape (CT) packaging, which is standard for active production components.

The maximum power dissipation of the KSA1015YTA (400 mW) is lower than the 2SA1980-L-AP (625 mW). This difference does not affect substitution validity when the application circuit operates within the 400 mW thermal envelope. Circuit designers must verify that thermal requirements do not exceed the substitute part's power rating.

Frequently Asked Questions (FAQ)

Q: Can the KSA1015YTA directly replace the 2SA1980-L-AP in existing circuit boards?

A: Yes. Both components are housed in the TO-92-3 package with identical pin configuration and formed leads. Direct pin-for-pin substitution is mechanically and electrically compatible.

Q: What is the significance of the lower power rating (400 mW vs. 625 mW) on the KSA1015YTA?

A: The substitute part has a lower maximum power dissipation specification. Applications must operate within the 400 mW thermal limit. If the original design requires sustained operation above 400 mW, the KSA1015YTA is not suitable without circuit modification.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant. The KSA1015YTA includes REACH Unaffected status, providing additional regulatory documentation. Both parts carry the same ECCN (EAR99) and HTSUS (8541.21.0095) classifications.

Q: Why is the 2SA1980-L-AP classified as obsolete?

A: The 2SA1980-L-AP is no longer in active production. The KSA1015YTA serves as the active equivalent for new designs and ongoing production requirements.

Q: Are the DC current gain specifications identical?

A: No. The 2SA1980-L-AP specifies DC current gain (hFE) of 300 minimum at 2A and 6V, while the KSA1015YTA specifies 120 minimum at 2mA and 6V. These are measured at different collector current levels and represent different device characterization points. Both specifications are within acceptable ranges for PNP transistor applications.

Q: What packaging format is available for the KSA1015YTA?

A: The KSA1015YTA is supplied in Cut Tape (CT) packaging, which is standard for active production components. The 2SA1980-L-AP was supplied without specified packaging format notation.