DTA114ECA-TP Equivalent & Substitute Parts

Part Overview

The DTA114ECA-TP is a pre-biased PNP bipolar junction transistor (BJT) manufactured by Micro Commercial Co in SOT-23 surface mount packaging. This component operates at 50 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and 250 MHz transition frequency. The device features integrated base and emitter-base resistors (10 kOhms each) for simplified circuit design and reduced component count.

The DTA114ECA-TP maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary when addressing supply chain constraints, packaging format requirements, or application-specific resistor network configurations that differ from the standard 10 kOhm base resistor value.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP - Pre-Biased	—
Current - Collector (Ic) Max	100	mA
Voltage - Collector Emitter Breakdown (Max)	50	V
Resistor - Base (R1)	10	kOhms
Resistor - Emitter Base (R2)	10	kOhms
DC Current Gain (hFE) Min @ Ic, Vce	30 @ 5mA, 5V	—
Vce Saturation (Max) @ Ib, Ic	300mV @ 500µA, 10mA	—
Frequency - Transition	250	MHz
Power - Max	200	mW
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the DTA114ECA-TP is determined by the following critical parameters:

Mandatory Matching Parameters:

Transistor Type: PNP - Pre-Biased
Voltage - Collector Emitter Breakdown (Max): 50 V
Current - Collector (Ic) Max: 100 mA (or higher)
Package / Case: TO-236-3, SC-59, SOT-23-3 (physical compatibility)
Mounting Type: Surface Mount
Power - Max: 200 mW (or higher)
Frequency - Transition: 250 MHz (or higher)

Application-Specific Parameters:

Resistor - Base (R1) and Resistor - Emitter Base (R2) values determine circuit behavior and bias characteristics. Substitutes with different resistor values require circuit re-evaluation but remain electrically compatible within the same voltage and current ratings.

Substitute parts are grouped into two categories:

Upgrade Substitutes (Direct Functional Equivalents with Different Resistor Networks): DDTA115ECA-7-F, DDTA123ECA-7-F, DDTA143ECA-7-F, and DDTA144ECA-7-F from Diodes Incorporated maintain identical voltage, current, and frequency specifications but feature different integrated resistor values (100 kOhms, 2.2 kOhms, 4.7 kOhms, and 47 kOhms respectively). These parts are direct substitutes when the application requires alternative bias resistor configurations.

Similar Substitutes (Equivalent Specifications with Packaging or Manufacturer Variations): BCR183E6327HTSA1 (Infineon), DDTA114ECA-7-F (Diodes Incorporated), DTA114EKAT146, DTA115EKAT146, DTA123EKAT146, and DTA124EKAT146 (Rohm Semiconductor) provide equivalent electrical performance with variations in packaging format (Cut Tape vs. Tape & Reel), supplier device package designation, or collector current ratings. These parts maintain the same core electrical characteristics and are suitable for direct replacement in applications where packaging format flexibility is acceptable.

Parameter Comparison

Part Number	Manufacturer	Ic Max (mA)	Vce Breakdown (V)	R1 (kOhms)	R2 (kOhms)	hFE Min @ 5mA, 5V	Frequency (MHz)	Package	Product Status
DTA114ECA-TP	Micro Commercial Co	100	50	10	10	30	250	SOT-23	Active
DDTA115ECA-7-F	Diodes Incorporated	100	50	100	100	82	250	SOT-23-3	Active
DDTA123ECA-7-F	Diodes Incorporated	100	50	2.2	2.2	20	250	SOT-23-3	Active
DDTA143ECA-7-F	Diodes Incorporated	100	50	4.7	4.7	20	250	SOT-23-3	Active
DDTA144ECA-7-F	Diodes Incorporated	100	50	47	47	68	250	SOT-23-3	Active
BCR183E6327HTSA1	Infineon Technologies	100	50	10	10	30	200	PG-SOT23	Last Time Buy
DDTA114ECA-7-F	Diodes Incorporated	100	50	10	10	30	250	SOT-23-3	Active
DTA114EKAT146	Rohm Semiconductor	50	50	10	10	30	250	SMT3	Active
DTA115EKAT146	Rohm Semiconductor	20	50	100	100	82	250	SMT3	Active
DTA123EKAT146	Rohm Semiconductor	100	50	2.2	2.2	20	250	SMT3	Active
DTA124EKAT146	Rohm Semiconductor	30	50	22	22	56	250	SMT3	Active

Engineering Selection Recommendations

Direct Replacement (Identical Specifications): DDTA114ECA-7-F from Diodes Incorporated is the primary direct replacement for DTA114ECA-TP. Both devices feature identical collector current (100 mA), breakdown voltage (50 V), integrated resistor values (10 kOhms each), DC current gain (30 @ 5mA, 5V), and transition frequency (250 MHz). Both maintain Active product status and full RoHS3 compliance. The primary difference is packaging format (Tape & Reel) and supplier device package designation (SOT-23-3 vs. SOT-23). This substitution requires no circuit modifications.

Resistor Network Variants (Diodes Incorporated DDTA Series): DDTA115ECA-7-F, DDTA123ECA-7-F, DDTA143ECA-7-F, and DDTA144ECA-7-F provide equivalent electrical performance with alternative integrated resistor configurations. Selection among these variants depends on application bias requirements. All maintain 100 mA collector current, 50 V breakdown voltage, 250 MHz transition frequency, and Active product status. Circuit re-evaluation is required when selecting resistor variants, as bias characteristics differ from the standard 10 kOhm configuration.

Resistor Network Variants (Rohm Semiconductor DTA Series): DTA123EKAT146 provides identical 100 mA collector current and 50 V breakdown voltage with 2.2 kOhm resistor configuration. DTA114EKAT146 matches the 10 kOhm resistor value but features reduced collector current (50 mA). DTA115EKAT146 and DTA124EKAT146 offer alternative resistor networks with reduced collector current ratings. All Rohm variants maintain 250 MHz transition frequency and Active product status. Packaging format is SMT3 (Cut Tape & Digi-Reel) rather than SOT-23.

Limited Availability Consideration: BCR183E6327HTSA1 from Infineon Technologies matches the DTA114ECA-TP specification exactly (10 kOhm resistors, 100 mA, 50 V, 30 hFE) but operates at 200 MHz transition frequency (lower than 250 MHz) and carries Last Time Buy product status. This part is suitable for applications where 200 MHz performance is acceptable and supply continuity is not critical.

Collector Current Derating: DTA114EKAT146 from Rohm Semiconductor features reduced maximum collector current (50 mA vs. 100 mA). This part is suitable only for applications where circuit current requirements do not exceed 50 mA.

Frequently Asked Questions (FAQ)

Q: Can DDTA114ECA-7-F replace DTA114ECA-TP without circuit modifications?

A: Yes. DDTA114ECA-7-F from Diodes Incorporated is electrically identical to DTA114ECA-TP. Both devices feature 100 mA collector current, 50 V breakdown voltage, 10 kOhm integrated resistors, 30 hFE minimum at 5mA/5V, and 250 MHz transition frequency. The substitution requires no circuit changes. Packaging format differs (SOT-23-3 vs. SOT-23 designation), but both use the same TO-236-3 physical form factor.

Q: What is the difference between DTA114ECA-TP and DDTA115ECA-7-F?

A: The primary difference is the integrated resistor network. DTA114ECA-TP features 10 kOhm base and emitter-base resistors, while DDTA115ECA-7-F features 100 kOhm resistors. This results in different bias characteristics: DDTA115ECA-7-F exhibits higher DC current gain (82 vs. 30 @ 5mA, 5V) and lower saturation base current (250µA vs. 500µA). Both maintain 100 mA collector current and 50 V breakdown voltage. Circuit re-evaluation is required when substituting between these variants.

Q: Can I use DTA114EKAT146 as a substitute for DTA114ECA-TP?

A: DTA114EKAT146 is suitable only for applications where maximum collector current does not exceed 50 mA. This Rohm Semiconductor part features identical 10 kOhm resistor configuration and 250 MHz transition frequency but is rated for 50 mA maximum collector current versus 100 mA for DTA114ECA-TP. Packaging format is SMT3 (Cut Tape & Digi-Reel) rather than Tape & Reel. Verify application current requirements before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (DDTA115ECA-7-F, DDTA123ECA-7-F, DDTA143ECA-7-F, DDTA144ECA-7-F, BCR183E6327HTSA1, DDTA114ECA-7-F, DTA114EKAT146, DTA115EKAT146, DTA123EKAT146, and DTA124EKAT146) maintain RoHS3 compliance. All parts also feature Moisture Sensitivity Level 1 (Unlimited).

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape & Digi-Reel packaging supplies components on cut tape segments or alternative reel formats. Both formats contain identical components; packaging format selection depends on assembly equipment compatibility and order quantity requirements.

Q: Why is BCR183E6327HTSA1 marked as Last Time Buy?

A: BCR183E6327HTSA1 from Infineon Technologies carries Last Time Buy product status, indicating the manufacturer has discontinued this part and will not accept new orders after a specified date. While this part is electrically equivalent to DTA114ECA-TP (10 kOhm resistors, 100 mA, 50 V, 30 hFE), it should not be selected for new designs or long-term supply requirements. Active alternatives include DDTA114ECA-7-F and DTA123EKAT146.

Q: Can I substitute DDTA123ECA-7-F for DTA114ECA-TP in a high-speed switching application?

A: DDTA123ECA-7-F features 2.2 kOhm integrated resistors versus 10 kOhms in DTA114ECA-TP. This results in lower DC current gain (20 vs. 30 @ 20mA, 5V) and different bias characteristics. Both parts maintain 250 MHz transition frequency and 100 mA collector current. Substitution is possible only if circuit design accommodates the lower gain and faster switching response of the 2.2 kOhm resistor configuration. Circuit simulation or testing is required to confirm performance.

Q: What is the significance of the hFE parameter in selecting a substitute?

A: DC current gain (hFE) determines the base current required to achieve a specified collector current. DTA114ECA-TP specifies 30 hFE minimum at 5mA collector current and 5V Vce. Substitutes with different hFE values (such as DDTA115ECA-7-F at 82 hFE or DDTA123ECA-7-F at 20 hFE) require different base drive circuits. Higher hFE requires less base current; lower hFE requires more base current. Verify that the application circuit can provide appropriate base current for the selected substitute.

Q: Are all substitute parts available in the same SOT-23 package?

A: All substitute parts use the same physical form factor (TO-236-3, SC-59, SOT-23-3), but supplier device package designations vary. Diodes Incorporated parts use SOT-23-3 designation, Infineon uses PG-SOT23, and Rohm Semiconductor uses SMT3. These designations refer to the same physical package and are interchangeable for PCB assembly purposes. Verify footprint compatibility with your PCB design.

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