KTA2014-Y-TP Equivalent & Substitute Parts

Part Overview

The KTA2014-Y-TP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-323 package. This component operates at 50 V collector-emitter breakdown voltage with a maximum collector current of 150 mA and 100 mW power dissipation. The device is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production support.

Substiute Parts

KTA2014-Y-TP

Micro Commercial CoIn Stock: 687KTA2014-Y-TP Datasheet

Current PartRFQ

2SA1586-GR,LF

Toshiba Semiconductor and StorageIn Stock: 180322SA1586-GR,LF Datasheet

DirectRFQ

2SA1586-Y,LF

Toshiba Semiconductor and StorageIn Stock: 333392SA1586-Y,LF Datasheet

DirectRFQ

2PA1576Q,135

Nexperia USA Inc.In Stock: 8842PA1576Q,135 Datasheet

SimilarRFQ

2SA1576AT106R

Rohm SemiconductorIn Stock: 4172152SA1576AT106R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KTA2014-Y-TP is determined by strict equivalence of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor Type: PNP
• Voltage - Collector Emitter Breakdown (Max): 50 V
• Current - Collector (Ic) (Max): 150 mA
• Package / Case: SC-70 or SOT-323
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Direct Equivalents maintain all critical parameters with identical or superior performance characteristics and active product status.

Similar Substitutes maintain all critical electrical parameters but may differ in power dissipation, transition frequency, DC current gain, or product lifecycle status. These parts are suitable for applications where the additional performance margin or different lifecycle status does not impact system requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Active Status):

The 2SA1586-Y,LF manufactured by Toshiba Semiconductor and Storage is the primary direct equivalent. This part maintains identical electrical specifications to the KTA2014-Y-TP, including 50 V breakdown voltage, 150 mA collector current, 100 mW power dissipation, and 80 MHz transition frequency. The 2SA1586-Y,LF carries active product status with 33,286 units in stock, ROHS3 compliance, and unlimited moisture sensitivity rating. The SC-70 supplier package is mechanically compatible with SOT-323 footprints. Operating temperature is rated to 125°C, which is 25°C lower than the main part; this difference must be evaluated against application thermal requirements.

The 2SA1586-GR,LF is an alternative direct equivalent from Toshiba with identical electrical specifications. This variant features a higher minimum DC current gain (200 @ 2 mA, 6 V versus 120 @ 2 mA, 6 V), providing improved gain margin. Product status is active with 17,969 units in stock.

For Enhanced Performance (Active Status):

The 2PA1576Q,135 manufactured by Nexperia USA Inc. provides enhanced performance characteristics while maintaining all critical electrical parameters. This part offers 200 mW power dissipation (versus 100 mW), 100 MHz transition frequency (versus 80 MHz), and 150°C maximum operating temperature. The device carries AEC-Q101 automotive qualification and active product status. Vce saturation is specified at 500 mV @ 5 mA, 50 mA, which differs from the main part specification; this must be evaluated for saturation-dependent circuit applications.

For Inventory Availability (Not For New Designs):

The 2SA1576AT106R manufactured by Rohm Semiconductor is classified as "Not For New Designs" but offers the highest transition frequency (140 MHz) and 200 mW power dissipation. This part carries 417,200 units in stock and may be suitable for legacy system support or high-volume existing production where design changes are not feasible. The UMT3 supplier package differs from SOT-323; footprint compatibility must be verified.

Frequently Asked Questions (FAQ)

Q: Can the 2SA1586-Y,LF directly replace the KTA2014-Y-TP in existing designs?

A: The 2SA1586-Y,LF maintains identical electrical specifications for voltage, current, power, and frequency parameters. The SC-70 package is mechanically compatible with SOT-323 footprints. The primary consideration is the maximum operating temperature of 125°C versus 150°C for the original part. If the application operates below 125°C junction temperature, direct substitution is valid. If thermal margins are critical, thermal analysis must confirm compatibility.

Q: What is the difference between the 2SA1586-GR,LF and 2SA1586-Y,LF?

A: Both parts are manufactured by Toshiba and maintain identical electrical specifications. The primary difference is the minimum DC current gain specification: 2SA1586-GR,LF specifies 200 @ 2 mA, 6 V, while 2SA1586-Y,LF specifies 120 @ 2 mA, 6 V. The higher gain of the GR variant provides additional design margin for gain-dependent circuits. Both parts are active and ROHS3 compliant.

Q: Why does the 2PA1576Q,135 have different Vce saturation specifications?

A: The 2PA1576Q,135 is specified at 500 mV @ 5 mA, 50 mA, compared to 300 mV @ 10 mA, 100 mA for the KTA2014-Y-TP. These specifications reflect different measurement conditions and device design. For applications where saturation voltage is critical (such as switching circuits), the higher saturation voltage of the 2PA1576Q,135 must be evaluated against circuit requirements.

Q: Is the 2SA1576AT106R suitable for new designs?

A: The 2SA1576AT106R carries a "Not For New Designs" status from Rohm Semiconductor. This classification indicates the manufacturer does not recommend this part for new product development. While the part maintains electrical compatibility and offers high inventory availability, new designs should prioritize the active-status alternatives: 2SA1586-Y,LF or 2PA1576Q,135.

Q: What is the significance of the UMT3 package for the 2SA1576AT106R?

A: The 2SA1576AT106R uses the UMT3 supplier package, which differs from the SOT-323 package of the main part. While both packages are classified as SC-70 or SOT-323 case styles, the UMT3 variant may have different land pattern dimensions. PCB footprint compatibility must be verified before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The KTA2014-Y-TP and all listed substitute parts (2SA1586-GR,LF, 2SA1586-Y,LF, 2PA1576Q,135, and 2SA1576AT106R) carry ROHS3 compliance certification. All parts maintain unlimited moisture sensitivity rating (MSL 1).

Q: Which substitute part offers the best performance margin?

A: The 2PA1576Q,135 provides the highest performance margin with 200 mW power dissipation (versus 100 mW), 100 MHz transition frequency (versus 80 MHz), and AEC-Q101 automotive qualification. The 2SA1576AT106R offers the highest transition frequency at 140 MHz but carries "Not For New Designs" status. For new designs requiring maximum performance margin, the 2PA1576Q,135 is the recommended selection.