KTC4075-GR-TP Equivalent & Substitute Parts

Part Overview

The KTC4075-GR-TP is a Surface Mount NPN Bipolar Junction Transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This device operates at 50V collector-emitter breakdown voltage with a maximum collector current of 150 mA and 100 mW power dissipation in a compact SOT-323 package.

The KTC4075-GR-TP is classified as Obsolete. Identification of equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this transistor.

Substiute Parts

KTC4075-GR-TP

Micro Commercial CoIn Stock: 1232KTC4075-GR-TP Datasheet

Current PartRFQ

2SC4116-GR,LXHF

Toshiba Semiconductor and StorageIn Stock: 70702SC4116-GR,LXHF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KTC4075-GR-TP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Parameters (Must Match):

• Transistor Type: NPN
• Maximum Collector Current (Ic): 150 mA
• Maximum Collector-Emitter Breakdown Voltage (VCEO): 50 V
• Saturation Voltage (Vce Sat): 250 mV @ 10 mA, 100 mA
• Collector Cutoff Current (ICBO): 100 nA
• Minimum DC Current Gain (hFE): 200 @ 2 mA, 6 V
• Maximum Power Dissipation: 100 mW
• Transition Frequency: 80 MHz

Mechanical Parameters (Must Match):

• Package Type: SOT-323 / SC-70
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The 2SC4116-GR,LXHF from Toshiba Semiconductor and Storage meets all specified electrical and mechanical parameters and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The 2SC4116-GR,LXHF qualifies as a parametric equivalent substitute for the KTC4075-GR-TP based on electrical and mechanical parameter equivalence. The substitute part is manufactured by Toshiba Semiconductor and Storage, an established semiconductor manufacturer, and maintains Active product status, ensuring ongoing availability and supply chain support.

Both parts satisfy ROHS3 compliance requirements and carry identical Moisture Sensitivity Level ratings. The substitute part is supplied in Tape & Reel packaging format, suitable for automated assembly processes.

The operating temperature maximum rating of the substitute (125°C junction temperature) is lower than the main part (150°C junction temperature). Applications requiring operation at junction temperatures exceeding 125°C must account for this thermal limitation when selecting the substitute part.

All critical electrical parameters—collector current, breakdown voltage, saturation voltage, cutoff current, current gain, power dissipation, and transition frequency—are identical between the main part and substitute, supporting direct functional replacement in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the 2SC4116-GR,LXHF directly replace the KTC4075-GR-TP in existing designs?

A: The 2SC4116-GR,LXHF is electrically and mechanically equivalent to the KTC4075-GR-TP across all specified parameters. Direct replacement is supported for applications where the operating junction temperature does not exceed 125°C. Applications requiring operation above 125°C junction temperature require thermal analysis to confirm compatibility.

Q: What is the significance of the different product status (Obsolete vs. Active)?

A: The KTC4075-GR-TP is classified as Obsolete, indicating discontinued manufacturing and limited future availability. The 2SC4116-GR,LXHF maintains Active status, confirming current production and ongoing supply chain availability. This makes the substitute part suitable for new designs and ongoing production support.

Q: Are the package designations SOT-323 and SC-70 interchangeable?

A: SOT-323 and SC-70 refer to the same physical package format. Both the main part and substitute use this identical package, ensuring mechanical and electrical compatibility on printed circuit boards without layout modifications.

Q: What compliance certifications apply to both parts?

A: Both the KTC4075-GR-TP and 2SC4116-GR,LXHF are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited) ratings. Both parts meet the same environmental and handling requirements.

Q: Why is the operating temperature rating different between the two parts?

A: The KTC4075-GR-TP specifies a maximum junction temperature of 150°C, while the 2SC4116-GR,LXHF specifies 125°C. This difference reflects manufacturer specifications and does not affect electrical parameter equivalence. Thermal design must account for the lower rating of the substitute part in high-temperature applications.

Q: Is the Tape & Reel packaging of the substitute compatible with automated assembly?

A: Yes. Tape & Reel packaging is standard for automated surface mount assembly processes. The 2SC4116-GR,LXHF in Tape & Reel format is compatible with standard pick-and-place equipment and reflow soldering processes.

Q: What electrical parameters determine substitution eligibility?

A: Substitution is determined by equivalence across collector current (150 mA), collector-emitter breakdown voltage (50 V), saturation voltage (250 mV @ specified conditions), cutoff current (100 nA), DC current gain (200 @ specified conditions), power dissipation (100 mW), and transition frequency (80 MHz). All parameters must match exactly for substitution to be valid.