DTA043EMT2L Equivalent & Substitute Parts Reference (Transistors, Bipolar BJT)

Part Overview

The DTA043EMT2L from Rohm Semiconductor is a surface-mount, pre-biased PNP bipolar junction transistor (BJT), used for switching and amplification in compact electronic equipment. As an active, RoHS3 compliant, REACH unaffected device in the SOT-723 (VMT3) package, it features a maximum collector current of 100 mA, 50 V breakdown voltage, and integrated resistors. Procuring suitable equivalent or substitute parts is often required for ensuring supply chain resilience, multi-sourcing, or when tailoring design for availability without modifying the circuit board or system functionality.

Key Parameters

Parameter	Specification
Transistor Type	PNP - Pre-Biased
Current - Collector (Ic) (Max)	100 mA
Voltage - Collector Emitter Breakdown (Max)	50 V
Resistor - Base (R1)	4.7 kOhms
Resistor - Emitter Base (R2)	4.7 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce	20 @ 5mA, 10V
Vce Saturation (Max) @ Ib, Ic	150mV @ 500µA, 5mA
Current - Collector Cutoff (Max)	500nA
Frequency - Transition	250 MHz
Power - Max	150 mW
Mounting Type	Surface Mount
Package / Case	SOT-723 (VMT3)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute and equivalent parts are identified by matching the following parameters: transistor type (PNP - Pre-Biased), collector current (100 mA), collector-emitter breakdown voltage (50 V), base and emitter-base resistor values (R1 = 4.7 kOhms, R2 = 4.7 kOhms), DC current gain characteristics, collector cutoff current (500 nA), package/case (SOT-723 or physical equivalents), mounting type (surface mount), and compliance/status markers (RoHS, REACH, MSL). Only parts matching all these mandatory specifications are considered suitable substitutes.

Key parameters for equivalency:

Transistor type
Collector current (Ic)
Voltage - Collector Emitter Breakdown (Vce)
Resistor values (R1, R2)
Electrical characteristics (gain, cutoff current)
Package/case and mounting type
RoHS/REACH compliance

Parameter Comparison

Manufacturer Part Number	Manufacturer	Transistor Type	Ic (Max)	Vce (Max)	R1	R2	DC Current Gain (Min)	Vce(sat) (Max)	I_Cutoff (Max)	Frequency	Power - Max	Mounting Type	Package / Case	RoHS Status	REACH Status
DTA043EMT2L	Rohm Semiconductor	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	4.7 kOhms	20 @ 5mA, 10V	150mV @ 500µA, 5mA	500nA	250 MHz	150 mW	Surface Mount	SOT-723 (VMT3)	ROHS3	REACH Unaffected
DTA143EM3T5G	onsemi	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	4.7 kOhms	15 @ 5mA, 10V	250mV @ 1mA, 10mA	500nA	-	260 mW	Surface Mount	SOT-723	ROHS3	REACH Unaffected
NSVDTA143EM3T5G	onsemi	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	4.7 kOhms	15 @ 5mA, 10V	250mV @ 1mA, 10mA	500nA	-	260 mW	Surface Mount	SOT-723	ROHS3	REACH Unaffected
NSBA143EF3T5G	onsemi	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	4.7 kOhms	15 @ 5mA, 10V	250mV @ 1mA, 10mA	500nA	-	254 mW	Surface Mount	SOT-1123	ROHS3	REACH Unaffected

Engineering Selection Recommendations

Select substitute parts that match the product’s active status, RoHS3 compliance, and REACH unaffected status. Ensure the substitute has a surface-mount package, suitable case (SOT-723 or equivalent physical form), and an identical or better moisture sensitivity level (MSL 1, Unlimited). All parts listed maintain the required compliance and inventory availability for professional design and procurement requirements.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting DTA043EMT2L?
A1: Key parameters include PNP - Pre-Biased transistor type, collector current (100 mA), collector-emitter breakdown voltage (50 V), resistor values (R1 and R2 at 4.7 kOhms), package/case compatibility (SOT-723 or equivalent), surface-mount type, and compliance (RoHS3, REACH).

Q2: Are SOT-723 and VMT3 considered equivalent for replacements?
A2: VMT3 is a Rohm-specific designation for SOT-723. Substitute parts in SOT-723 are compatible with VMT3 packages based on supplied mechanical parameters.

Q3: Is RoHS and REACH status important for substitute selection?
A3: Substitute parts must maintain at least ROHS3 compliance and be REACH unaffected to ensure environmental and regulatory compatibility within certified products.

Q4: How does current gain (hFE) variation among substitutes affect selection?
A4: Select parts matching the minimum specified hFE (DC current gain) required in the design. All listed substitutes meet or exceed the provided hFE (min) values for comparable operation per supplied data.

Q5: Are all listed equivalent parts suitable for high-volume designs?
A5: Substitute selection based on part status (active), compliance, and inventory supports both small batch and volume manufacturing as per current availability and specifications.

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