DTC114TKA-TP Equivalent & Substitute Parts

Part Overview

The DTC114TKA-TP is a pre-biased NPN bipolar junction transistor (BJT) manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-23-3 package. This component operates at 50 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and transition frequency of 250 MHz. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

DTC114TKA-TP

Micro Commercial CoIn Stock: 1282DTC114TKA-TP Datasheet

Current PartRFQ

DTC114TCAT116

Rohm SemiconductorIn Stock: 3196DTC114TCAT116 Datasheet

DirectRFQ

DTC114TKAT146

Rohm SemiconductorIn Stock: 186672DTC114TKAT146 Datasheet

DirectRFQ

MMUN2215LT1G

onsemiIn Stock: 8915MMUN2215LT1G Datasheet

SimilarRFQ

MUN2215T1G

onsemiIn Stock: 20303MUN2215T1G Datasheet

SimilarRFQ

PDTC114TT,215

NXP SemiconductorsIn Stock: 571782PDTC114TT,215 Datasheet

SimilarRFQ

PDTC114TT,235

Nexperia USA Inc.In Stock: 10888PDTC114TT,235 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DTC114TKA-TP is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Transistor type: NPN - Pre-Biased configuration
• Maximum collector current: 100 mA
• Collector-emitter breakdown voltage: 50 V
• Base resistor value: 10 kOhms
• Transition frequency: 250 MHz or higher
• Mounting type: Surface Mount

Mechanical Compatibility Criteria:

• Package designation: TO-236-3, SC-59, or SOT-23-3 (three-lead surface mount packages)
• Moisture sensitivity level: 1 (Unlimited)

Compliance Criteria:

• RoHS3 compliance
• REACH unaffected status

Substitute parts are classified into two categories:

Direct Substitutes maintain identical electrical specifications and differ only in supplier device package designation or manufacturer. These parts are pin-compatible and functionally equivalent.

Similar Substitutes maintain core electrical parameters (voltage, current, base resistor, package family) but may exhibit variations in secondary specifications such as DC current gain measurement conditions, saturation voltage, power dissipation, or transition frequency. These parts are functionally compatible within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Rohm Semiconductor):

DTC114TCAT116 and DTC114TKAT146 are direct electrical and functional equivalents to the DTC114TKA-TP. Both parts are manufactured by Rohm Semiconductor and maintain identical specifications across all critical parameters: 100 mA collector current, 50 V breakdown voltage, 10 kOhms base resistor, 100 hFE minimum at 1 mA/5 V, and 300 mV saturation voltage. The distinction between these two parts lies in supplier device packaging (SST3 versus SMT3), which reflects different tape and reel configurations for automated assembly. Both parts carry active product status and full RoHS3 compliance. DTC114TKAT146 offers significantly higher inventory availability (186,620 units) compared to DTC114TCAT116 (3,112 units).

Similar Substitutes (onsemi):

MMUN2215LT1G and MUN2215T1G are manufactured by onsemi and maintain core electrical compatibility with the DTC114TKA-TP across voltage, current, and base resistor specifications. These parts exhibit higher DC current gain (160 hFE minimum at 5 mA/10 V versus 100 hFE at 1 mA/5 V) and lower saturation voltage (250 mV versus 300 mV), representing improved performance characteristics. Power dissipation ratings are higher (400 mW for MMUN2215LT1G and 338 mW for MUN2215T1G versus 200 mW). Both parts are active products with RoHS3 compliance and unlimited moisture sensitivity rating. MMUN2215LT1G is supplied in SOT-23-3 package format, while MUN2215T1G uses SC-59 package designation.

Similar Substitute (Nexperia):

PDTC114TT,235 manufactured by Nexperia USA Inc. maintains voltage, current, and base resistor equivalence to the DTC114TKA-TP. This part exhibits superior DC current gain (200 hFE minimum at 1 mA/5 V) and significantly lower saturation voltage (150 mV at 500 µA/10 mA). Power dissipation is rated at 250 mW. The part carries active product status, RoHS3 compliance, and REACH unaffected designation. Inventory availability is substantial at 10,824 units.

All substitute parts are surface mount components compatible with TO-236-3, SC-59, and SOT-23-3 package families and maintain MSL 1 (Unlimited) moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: Can DTC114TCAT116 and DTC114TKAT146 be used interchangeably with DTC114TKA-TP?

A: Yes. Both Rohm parts are direct electrical equivalents with identical specifications across all critical parameters: collector current, breakdown voltage, base resistor value, DC current gain, saturation voltage, and transition frequency. The difference between SST3 and SMT3 supplier device packages reflects tape and reel configuration only and does not affect electrical performance or pin compatibility.

Q: What are the key differences between the Rohm direct substitutes and the onsemi similar substitutes?

A: The Rohm parts (DTC114TCAT116 and DTC114TKAT146) maintain exact electrical specifications matching the DTC114TKA-TP. The onsemi parts (MMUN2215LT1G and MUN2215T1G) provide higher DC current gain (160 versus 100 hFE), lower saturation voltage (250 versus 300 mV), and higher power dissipation capability (338-400 versus 200 mW). These differences represent performance improvements suitable for applications requiring enhanced switching characteristics or higher power handling.

Q: Are all substitute parts compatible with existing PCB layouts designed for DTC114TKA-TP?

A: Yes. All substitute parts use the same three-lead surface mount package family (TO-236-3, SC-59, SOT-23-3) with identical pin assignments and footprints. No PCB layout modifications are required for substitution.

Q: What is the significance of the different supplier device package designations (SOT-23-3L, SST3, SMT3, TO-236AB)?

A: These designations describe the specific tape and reel configuration and packaging format used by each manufacturer for automated assembly. They do not affect electrical performance, pin compatibility, or functional equivalence. Selection among these options depends on assembly equipment compatibility and supplier availability.

Q: Why does PDTC114TT,235 have lower saturation voltage than the DTC114TKA-TP?

A: Lower saturation voltage (150 mV versus 300 mV) represents a performance characteristic difference between manufacturers. This is not a deficiency but rather an improved specification that may benefit applications requiring faster switching or lower power dissipation in saturation mode. The part remains functionally compatible within the specified parameter ranges.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry RoHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements for electronic components.

Q: Which substitute part offers the best inventory availability?

A: DTC114TKAT146 (Rohm Semiconductor) offers the highest inventory availability at 186,620 units in stock, followed by MUN2215T1G (onsemi) at 20,200 units and PDTC114TT,235 (Nexperia) at 10,824 units.

Q: Can the higher power-rated onsemi parts (MMUN2215LT1G and MUN2215T1G) be used in applications originally designed for the 200 mW DTC114TKA-TP?

A: Yes. Higher power ratings provide additional thermal margin and do not create compatibility issues. These parts are suitable for applications requiring the same or lower power dissipation as the original design.