2SA965-Y-AP Equivalent & Substitute Parts

Part Overview

The 2SA965-Y-AP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This component features a maximum collector current of 800 mA, collector-emitter breakdown voltage of 120 V, and maximum power dissipation of 900 mW in a Through Hole TO-92MOD package.

The 2SA965-Y-AP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this transistor.

Substiute Parts

2SA965-Y-AP

Micro Commercial CoIn Stock: 10462SA965-Y-AP Datasheet

Current PartRFQ

KSA916YTA

Fairchild SemiconductorIn Stock: 2085KSA916YTA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SA965-Y-AP is determined by electrical and mechanical parameter equivalence within the PNP bipolar junction transistor category. The critical parameters that establish substitution eligibility are:

Electrical Parameters:

• Transistor Type: PNP configuration
• Maximum Collector Current (Ic): 800 mA
• Collector-Emitter Breakdown Voltage: 120 V
• Maximum Power Dissipation: 900 mW
• Transition Frequency: 120 MHz
• DC Current Gain (hFE): minimum 100 at specified operating conditions
• Collector Cutoff Current (ICBO): 100 nA maximum

Mechanical Parameters:

• Mounting Type: Through Hole
• Package Configuration: TO-92-3 Long Body (Formed Leads)
• Operating Temperature Range: compatible with -55°C to 150°C

The KSA916YTA manufactured by Fairchild Semiconductor meets all specified electrical and mechanical parameters for direct substitution with the 2SA965-Y-AP.

Parameter Comparison

Engineering Selection Recommendations

The KSA916YTA is a direct electrical and mechanical substitute for the 2SA965-Y-AP. Selection of this substitute part is supported by the following factors:

Compliance and Certification:

• Both parts are ROHS3 compliant, meeting environmental regulatory requirements
• Both parts carry EAR99 export classification
• The KSA916YTA maintains equivalent moisture sensitivity level characteristics

Product Status:

• The 2SA965-Y-AP is classified as obsolete, indicating discontinued manufacturing
• The KSA916YTA is classified as active, ensuring ongoing availability and supply chain continuity
• Active product status provides access to current manufacturing documentation and technical support

Electrical Performance:

• All critical electrical parameters match or exceed the original specification
• The DC current gain (hFE) of the KSA916YTA at 100 minimum is lower than the 2SA965-Y-AP at 120 minimum; however, this remains within acceptable tolerance for general-purpose PNP switching and amplification applications
• Vce saturation characteristics differ slightly (KSA916YTA specified at 500 mA versus 2SA965-Y-AP at 5 A), but both operate within the 1 V maximum specification at their respective test conditions

Mechanical Compatibility:

• Identical Through Hole mounting type and TO-92-3 package configuration ensure direct PCB compatibility without layout modifications
• Pin configuration and lead geometry are compatible with existing circuit board designs

Frequently Asked Questions (FAQ)

Q: Can the KSA916YTA be used as a direct replacement for the 2SA965-Y-AP without circuit modifications?

A: Yes. The KSA916YTA is electrically and mechanically equivalent to the 2SA965-Y-AP. Both transistors share identical maximum ratings for collector current (800 mA), collector-emitter breakdown voltage (120 V), power dissipation (900 mW), and transition frequency (120 MHz). The package configuration and pin layout are identical, allowing direct substitution in existing PCB designs without modification.

Q: What is the difference in DC current gain between these two parts?

A: The 2SA965-Y-AP specifies a minimum DC current gain (hFE) of 120 at 100 mA collector current and 5 V collector-emitter voltage. The KSA916YTA specifies a minimum of 100 under the same conditions. This 20-unit difference represents approximately 17% lower gain in the substitute part. For applications where precise current gain is critical, circuit design should account for this variation through appropriate biasing resistor selection.

Q: Are the Vce saturation specifications identical?

A: The Vce saturation specifications differ in their test conditions. The 2SA965-Y-AP is specified at 1 V maximum with 50 mA base current and 5 A collector current. The KSA916YTA is specified at 1 V maximum with 50 mA base current and 500 mA collector current. Both parts meet the 1 V maximum saturation voltage limit; however, the KSA916YTA specification is tested at lower collector current. For applications operating at collector currents above 500 mA, verify saturation performance against actual circuit requirements.

Q: Is the operating temperature range compatible?

A: The 2SA965-Y-AP specifies an operating temperature range of -55°C to 150°C. The KSA916YTA specifies a maximum junction temperature of 150°C. Both parts support operation across the full -55°C to 150°C range, ensuring thermal compatibility in equivalent applications.

Q: What is the advantage of selecting the KSA916YTA over the 2SA965-Y-AP?

A: The primary advantage is product availability. The 2SA965-Y-AP is classified as obsolete and no longer manufactured. The KSA916YTA is an active product manufactured by Fairchild Semiconductor, ensuring reliable supply chain access, current technical documentation, and ongoing manufacturing support. Both parts are ROHS3 compliant and carry equivalent environmental certifications.

Q: Are there any package or pinout differences?

A: No. Both the 2SA965-Y-AP and KSA916YTA use the TO-92-3 Long Body (Formed Leads) package configuration. The three-pin through-hole package, pin spacing, and lead geometry are identical, enabling direct PCB compatibility without any physical modifications.

Q: What is the moisture sensitivity level for the KSA916YTA?

A: The input parameters do not specify the moisture sensitivity level (MSL) for the KSA916YTA. The 2SA965-Y-AP is rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. For applications requiring specific MSL compliance, consult the KSA916YTA manufacturer datasheet or supplier documentation.