Equivalent & Substitute Parts for DTA115GUAT106 Pre-Biased PNP BJT

Part Overview

Manufacturer Part Number: DTA115GUAT106
Manufacturer: Rohm Semiconductor
Category: Transistors, Bipolar (BJT)
Packaging: Tape & Reel (TR)
Description: TRANS PREBIAS PNP 50V 0.1A UMT3
Detailed Description: Pre-Biased Bipolar Transistor (BJT) PNP - Pre-Biased 50 V 100 mA 250 MHz 200 mW Surface Mount UMT3
Product Status: Active

The DTA115GUAT106 is a pre-biased PNP bipolar junction transistor optimized for surface-mount applications requiring a maximum collector current of 100 mA and voltage handling up to 50 V. Finding equivalent or substitute models is necessary for supply chain risk mitigation, multi-sourcing, and maintaining design flexibility with alternate manufacturers or series.

Key Parameters

Parameter	Value
Transistor Type	PNP - Pre-Biased
Current - Collector (Ic) (Max)	100 mA
Voltage - Collector Emitter Breakdown (Max)	50 V
Resistor - Emitter Base (R2)	100 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 5mA, 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
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute and equivalent parts for DTA115GUAT106 are selected strictly based on matching or closely aligned key parameters:

Transistor Type
Maximum Collector Current (Ic)
Maximum Collector-Emitter Breakdown Voltage
Pre-bias resistor value
Minimum DC Current Gain
Maximum Vce Saturation
Maximum Collector Cutoff Current
Transition Frequency
Maximum Power
Mounting Type/Package
RoHS and REACH Compliance
Moisture Sensitivity Level

Parts in the same surface-mount package (SC-70, SOT-323) and with equivalent electrical ratings and compliance certifications are grouped as direct substitutes. Similar parts meeting most, but not all, parameters—especially resistor values or current gain—are listed as "similar alternatives."

Parameter Comparison

Manufacturer Part Number	Manufacturer	Transistor Type	Ic (Max)	Vce (Max)	R2 (Emitter-Base)	hFE (Min)	Vce Sat (Max)	ICBO (Max)	fT	Power (Max)	Mounting Type	Package	RoHS	MSL	REACH
DTA115GUAT106	Rohm Semiconductor	PNP - Pre-Biased	100 mA	50 V	100 kOhms	82	300mV	500nA	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected
DDTA115GUA-7	Diodes Inc.	PNP - Pre-Biased	100 mA	50 V	100 kOhms	82	300mV	500nA	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected
DDTA115GUA-7-F	Diodes Inc.	PNP - Pre-Biased	100 mA	50 V	100 kOhms	82	300mV	500nA	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected
DDTA115TUA-7-F	Diodes Inc.	PNP - Pre-Biased	100 mA	50 V	100 kOhms*	100	300mV	500nA	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected
RN2311(TE85L,F)	Toshiba	PNP - Pre-Biased	100 mA	50 V	10 kOhms	120	300mV	100nA	200 MHz	100 mW	Surface Mount	SC-70, SOT-323	RoHS	1	-
PDTA143TU,115	Nexperia USA Inc.	PNP - Pre-Biased	100 mA	50 V	4.7 kOhms	200	150mV	1µA	-	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected
DDTA144GUA-7-F	Diodes Inc.	PNP - Pre-Biased	100 mA	50 V	47 kOhms	68	300mV	500nA	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected
DDTA125TUA-7-F	Diodes Inc.	PNP - Pre-Biased	100 mA	50 V	N/A	N/A	N/A	N/A	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected
DDTA114GUA-7-F	Diodes Inc.	PNP - Pre-Biased	100 mA	50 V	10 kOhms	30	300mV	500nA	250 MHz	200 mW	Surface Mount	SC-70, SOT-323	ROHS3	1	Unaffected

*in DDTA115TUA-7-F, R1 value is specified instead of R2.

Engineering Selection Recommendations

For supply chain assurance and RoHS/REACH compliance, prioritize substitute parts with an active product status and explicit RoHS3 and REACH certification. All listed direct substitutes for DTA115GUAT106 conform to these requirements. For obsolete parts or alternatives with missing compliance data, further assessment may be required before selection. Select substitute parts with matching or equivalent surface-mount packages and moisture sensitivity levels to ensure mechanical interchangeability.

Frequently Asked Questions (FAQ)

Q1: Which parameters must match for a pre-biased PNP BJT substitute?
A1: Key parameters include Transistor Type (PNP - Pre-Biased), maximum collector current, maximum collector-emitter breakdown voltage, pre-bias resistor value, DC current gain, Vce saturation, mounting type, package, and compliance status.

Q2: Are all SC-70, SOT-323 surface-mount packages interchangeable for these substitute parts?
A2: Yes, all listed substitute parts are supplied in surface-mount SC-70 or SOT-323 packages, ensuring mechanical compatibility for PCBs with established footprints for those packages.

Q3: Why does the resistor value matter in substitution?
A3: The pre-bias resistor value impacts the input characteristics and switching thresholds. Substitute parts are grouped by matching or equivalent resistor values to maintain electrical behavior.

Q4: Are there any compliance or environmental considerations to observe?
A4: All direct substitute parts listed are RoHS3 compliant and have MSL 1 (Unlimited) moisture sensitivity, matching the main part. REACH status is unaffected, supporting global compliance requirements.

Q5: Is it necessary to check product status when selecting a substitute?
A5: Yes, preference should be given to active parts to secure long-term supply availability. Obsolete alternatives are listed only for legacy support or last-time buys.

Q6: What should be considered regarding DC current gain and cutoff current?
A6: DC current gain (hFE) and collector cutoff current (ICBO) directly affect switching and amplification performance. Substitute parts are listed with parameters relevant for functional equivalency.

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