Equivalent & Substitute Parts Reference: DTA143TUBTL

Part Overview

Manufacturer Part Number DTA143TUBTL is a pre-biased bipolar transistor (BJT), PNP type, in a surface-mount UMT3 (SC-70, SOT-323) package. The device features a collector-emitter breakdown voltage of 50 V, a maximum collector current of 100 mA, and a base resistor (R1) of 4.7 kOhms. Its product status is "Not For New Designs." Therefore, it is necessary to find equivalent or substitute models to ensure compatibility for ongoing designs and manufacturing continuity.

Key Parameters

Parameter	Value
Transistor Type	PNP - Pre-Biased
Current - Collector (Ic) (Max)	100 mA
Voltage - Collector Emitter Breakdown (Max)	50 V
Resistor - Base (R1)	4.7 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 1mA, 5V
Vce Saturation (Max) @ Ib, Ic	300mV @ 250µA, 5mA
Current - Collector Cutoff (Max)	500nA (ICBO)
Frequency - Transition	250 MHz
Power - Max	200 mW
Mounting Type	Surface Mount
Package / Case	SC-70, SOT-323
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution logic is strictly determined by the following consistent parameters across the product category: transistor type (PNP - Pre-Biased), maximum collector current (100 mA), collector-emitter breakdown voltage (50 V), base resistor value (R1), DC current gain, Vce saturation, collector cutoff current, transition frequency, maximum power, mounting type, package/case (SC-70, SOT-323), and material compliance/status. Equivalent and substitute devices must match these key electrical and mechanical characteristics to ensure direct compatibility.

Parameter Comparison

td>100 mA

Manufacturer Part Number	Transistor Type	Current - Collector (Ic) (Max)	Voltage - Collector Emitter Breakdown (Max)	Resistor - Base (R1)	DC Current Gain (hFE) (Min) @ Ic, Vce	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	Frequency - Transition	Power - Max	Mounting Type	Package / Case	RoHS Status	MSL	REACH Status	ECCN
DTA143TUBTL	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	100 @ 1mA, 5V	300mV @ 250µA, 5mA	500nA (ICBO)	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99
DDTA143TUA-7-F	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	100 @ 1mA, 5V	300mV @ 250µA, 2.5mA	500nA (ICBO)	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99
MUN5116T1G	PNP - Pre-Biased	50 V	4.7 kOhms	160 @ 5mA, 10V	250mV @ 1mA, 10mA	500nA	--	202 mW	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99
PDTA143TU,115	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	200 @ 1mA, 5V	150mV @ 250µA, 5mA	1µA	--	200 mW	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99
RN2310(TE85L,F)	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	120 @ 1mA, 5V	300mV @ 250µA, 5mA	100nA (ICBO)	200 MHz	100 mW	Surface Mount	SC-70, SOT-323	RoHS Compliant	1 (Unlimited)	--	EAR99
RN2310,LF	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	120 @ 1mA, 5V	300mV @ 250µA, 5mA	100nA (ICBO)	200 MHz	100 mW	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	1 (Unlimited)	--	EAR99

Engineering Selection Recommendations

Given the "Not For New Designs" status of the DTA143TUBTL, selection of substitute parts should prioritize those with "Active" product status, ROHS3 compliance, and MSL 1 (Unlimited) rating, along with matching ECCN (EAR99) and REACH unaffected compliance where applicable. Substitute components listed meet these criteria and match specified electrical and mechanical key parameters.

Frequently Asked Questions (FAQ)

Q1: What determines if a transistor is a suitable substitute for DTA143TUBTL?
A1: Suitability is based strictly on matching transistor type (PNP - Pre-Biased), collector-emitter voltage (50 V), maximum collector current (100 mA), base resistor value (4.7 kOhms), package/case (SC-70, SOT-323), mounting type (surface mount), and compliance status.

Q2: Why are both electrical and mechanical parameters required for substitution?
A2: Both electrical ratings and package match are essential for ensuring direct interchangeability on existing PCBs and meeting performance specifications.

Q3: Can substitutes with different base resistor values be considered?
A3: Only devices with identical base resistor values (4.7 kOhms) are listed as direct substitutes. Upgrades with different R1 values are not direct substitutes and may affect circuit operation.

Q4: What does "ROHS3 Compliant" mean for component selection?
A4: ROHS3 compliance ensures the device meets present restrictions on hazardous substances and is necessary for environmental and regulatory adherence in most applications.

Q5: Does the mounting type affect which substitute can be selected?
A5: Yes, only surface mount devices in SC-70 or SOT-323 packages are listed to maintain compatibility with the intended PCB footprint.

Q6: Are online inventory levels important for engineering substitution?
A6: Inventory levels are not used as a substitute parameter; selection is strictly based on the technical and compliance data provided.

Q7: How significant is ECCN and REACH status in selection?
A7: ECCN and REACH status can be necessary for export and regulatory compliance in specific regions and industries; only matching documentation is considered in this reference.

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