KTC3205-Y-TP Equivalent & Substitute Parts

Part Overview

The KTC3205-Y-TP is a Bipolar (BJT) Transistor, NPN type, manufactured by Micro Commercial Co. This component is rated for 30V collector-emitter breakdown voltage with a maximum collector current of 2A and 1W power dissipation. The device features a transition frequency of 120MHz and operates across a temperature range of -55°C to 150°C. The KTC3205-Y-TP is mounted in a Through Hole TO-92 package configuration with formed leads.

The KTC3205-Y-TP is classified as Obsolete. Locating equivalent substitute parts is necessary to support ongoing system maintenance, repair operations, and new design implementations where this component specification remains functionally required.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) (Max)	2	A
Voltage - Collector Emitter Breakdown (Max)	30	V
Vce Saturation (Max) @ Ib, Ic	2V @ 30mA, 1.5A	—
Current - Collector Cutoff (Max)	100nA	A
DC Current Gain (hFE) (Min) @ Ic, Vce	160 @ 500mA, 2V	—
Power - Max	1	W
Frequency - Transition	120	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-92-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the KTC3205-Y-TP is determined by electrical and mechanical parameter equivalence. The following criteria establish direct substitutability:

Electrical Parameters (Critical):

Transistor Type: NPN configuration
Current - Collector (Ic) (Max): 2A minimum rating
Voltage - Collector Emitter Breakdown (Max): 30V minimum rating
Vce Saturation (Max) @ Ib, Ic: 2V @ 30mA, 1.5A
DC Current Gain (hFE) (Min) @ Ic, Vce: 160 @ 500mA, 2V
Power - Max: 1W minimum rating
Frequency - Transition: 120MHz minimum rating

Mechanical Parameters (Critical):

Mounting Type: Through Hole
Package / Case: TO-92-3 configuration

Compliance Parameters:

RoHS Status: ROHS3 Compliant

The KSC2328AYTA meets all specified electrical and mechanical parameters and maintains ROHS3 compliance, establishing it as a direct substitute for the KTC3205-Y-TP.

Parameter Comparison

Parameter	KTC3205-Y-TP	KSC2328AYTA	Match Status
Transistor Type	NPN	NPN	Equivalent
Current - Collector (Ic) (Max)	2 A	2 A	Equivalent
Voltage - Collector Emitter Breakdown (Max)	30 V	30 V	Equivalent
Vce Saturation (Max) @ Ib, Ic	2V @ 30mA, 1.5A	2V @ 30mA, 1.5A	Equivalent
Current - Collector Cutoff (Max)	100nA	100µA	Substitute Rated Higher
DC Current Gain (hFE) (Min) @ Ic, Vce	160 @ 500mA, 2V	160 @ 500mA, 2V	Equivalent
Power - Max	1 W	1 W	Equivalent
Frequency - Transition	120 MHz	120 MHz	Equivalent
Operating Temperature Range	-55 to 150 °C	Up to 150 °C	Substitute Rated Lower Minimum
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	TO-92-3	TO-92-3	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent

Engineering Selection Recommendations

The KSC2328AYTA manufactured by onsemi is a direct electrical and mechanical substitute for the obsolete KTC3205-Y-TP. Both components share identical ratings across all critical parameters: collector current, collector-emitter breakdown voltage, saturation characteristics, DC current gain, power dissipation, and transition frequency.

The KSC2328AYTA carries Active product status, ensuring ongoing availability and manufacturer support. Both components maintain ROHS3 compliance, satisfying environmental and regulatory requirements.

The KSC2328AYTA is supplied in Cut Tape (CT) packaging format, whereas the KTC3205-Y-TP inventory status does not specify packaging format. Both devices utilize the TO-92-3 Through Hole package with formed leads, ensuring mechanical and thermal compatibility in existing PCB layouts and socket configurations.

The KSC2328AYTA exhibits a higher collector cutoff current specification (100µA versus 100nA) and does not specify a minimum operating temperature, whereas the KTC3205-Y-TP operates to -55°C. These differences do not restrict substitution in applications where the original component specifications are met or exceeded.

Frequently Asked Questions (FAQ)

Q: Can the KSC2328AYTA directly replace the KTC3205-Y-TP in existing circuit designs?

A: Yes. The KSC2328AYTA meets all electrical specifications of the KTC3205-Y-TP, including collector current, breakdown voltage, saturation characteristics, and gain parameters. Both components use the TO-92-3 Through Hole package, ensuring mechanical compatibility with existing PCB layouts and component sockets.

Q: What is the primary reason for substitution?

A: The KTC3205-Y-TP is classified as Obsolete. The KSC2328AYTA is an Active product with current manufacturer support and established supply chain availability.

Q: Are there packaging differences between these components?

A: Both components use the TO-92-3 Through Hole package with formed leads. The KSC2328AYTA is supplied in Cut Tape (CT) format. Packaging format does not affect electrical performance or mechanical fit in circuit applications.

Q: Do both components meet the same environmental compliance standards?

A: Yes. Both the KTC3205-Y-TP and KSC2328AYTA are ROHS3 Compliant. The KSC2328AYTA additionally carries REACH Unaffected status.

Q: What is the difference in collector cutoff current specifications?

A: The KTC3205-Y-TP specifies a maximum collector cutoff current (ICBO) of 100nA, while the KSC2328AYTA specifies 100µA. The KSC2328AYTA specification is less stringent. This difference does not restrict substitution in applications where the original component specifications are met or exceeded.

Q: What is the difference in operating temperature range?

A: The KTC3205-Y-TP operates from -55°C to 150°C. The KSC2328AYTA specification indicates operation to 150°C without specifying a minimum temperature. For applications requiring operation below 0°C, the KTC3205-Y-TP specification should be verified against actual system requirements.

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