DDA124EUQ-7-F Equivalent & Substitute Parts

Part Overview

The DDA124EUQ-7-F is a pre-biased dual PNP bipolar transistor manufactured by Diodes Incorporated in SOT-363 surface mount packaging. This component integrates two PNP transistors with internal biasing resistors, designed for applications requiring compact switching and amplification functionality. The part maintains Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence to support design flexibility and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Transistor Type	2 PNP - Pre-Biased (Dual)	—
Maximum Collector Current (Ic)	100	mA
Collector-Emitter Breakdown Voltage (Max)	50	V
Base Resistor (R1)	22	kOhms
Emitter-Base Resistor (R2)	22	kOhms
DC Current Gain (hFE Min)	56 @ 5mA, 5V	—
Vce Saturation (Max)	300	mV
Transition Frequency	250	MHz
Maximum Power Dissipation	200	mW
Package Type	SOT-363 / SC-88 / 6-TSSOP	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution eligibility for the DDA124EUQ-7-F is determined by the following critical parameters:

Mandatory Matching Criteria:

Transistor configuration: 2 PNP - Pre-Biased (Dual)
Maximum collector current: 100 mA
Collector-emitter breakdown voltage: 50 V
Surface mount package compatibility: SOT-363, SC-88, or 6-TSSOP
Product status: Active

Functional Equivalence Parameters:

Internal base and emitter-base resistor values (10 kOhms or 22 kOhms acceptable within design tolerance)
DC current gain (hFE) minimum specifications
Vce saturation characteristics
Transition frequency (200 MHz or higher acceptable)
Maximum power dissipation (200 mW or higher acceptable)

All identified substitute parts meet the mandatory matching criteria and maintain functional equivalence within the specified electrical parameter ranges. Differences in internal resistor values (10 kOhms vs. 22 kOhms) and secondary electrical characteristics do not preclude substitution when circuit design accommodates these variations.

Parameter Comparison

Parameter	DDA124EUQ-7-F	MUN5111DW1T1G	NSVMUN5111DW1T3G	PUMB11,115	PUMB11,135	RN2902,LF(CT	UMB11NTN
Manufacturer	Diodes Inc.	onsemi	onsemi	Nexperia	Nexperia	Toshiba	Rohm
Transistor Type	2 PNP - Pre-Biased (Dual)	2 PNP - Pre-Biased (Dual)	2 PNP - Pre-Biased (Dual)	2 PNP - Pre-Biased (Dual)	2 PNP - Pre-Biased (Dual)	2 PNP - Pre-Biased (Dual)	2 PNP - Pre-Biased (Dual)
Ic (Max)	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA
Vce Breakdown (Max)	50 V	50 V	50 V	50 V	50 V	50 V	50 V
R1 (Base Resistor)	22 kOhms	10 kOhms	10 kOhms	10 kOhms	10 kOhms	10 kOhms	10 kOhms
R2 (Emitter-Base Resistor)	22 kOhms	10 kOhms	10 kOhms	10 kOhms	10 kOhms	10 kOhms	10 kOhms
hFE (Min) @ Ic, Vce	56 @ 5mA, 5V	35 @ 5mA, 10V	35 @ 5mA, 10V	30 @ 5mA, 5V	30 @ 5mA, 5V	50 @ 10mA, 5V	20 @ 5mA, 5V
Vce Saturation (Max)	300 mV @ 500µA, 10mA	250 mV @ 300µA, 10mA	250 mV @ 300µA, 10mA	150 mV @ 500µA, 10mA	150 mV @ 500µA, 10mA	300 mV @ 250µA, 5mA	300 mV @ 500µA, 10mA
Icbo (Max)	500 nA	500 nA	500 nA	1 µA	1 µA	500 nA	500 nA
Frequency - Transition	250 MHz	—	—	—	—	200 MHz	250 MHz
Power (Max)	200 mW	250 mW	250 mW	300 mW	300 mW	200 mW	150 mW
Package	SOT-363	SC-88/SC70-6/SOT-363	SC-88/SC70-6/SOT-363	6-TSSOP	6-TSSOP	US6	UMT6
Grade	Automotive	—	Automotive	—	—	—	—
Qualification	AEC-Q101	—	AEC-Q101	—	—	—	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Automotive Applications (AEC-Q101 Required): The DDA124EUQ-7-F and NSVMUN5111DW1T3G both carry AEC-Q101 automotive qualification. NSVMUN5111DW1T3G is the preferred substitute for automotive designs requiring formal qualification compliance. Both parts maintain Active product status and ROHS3 compliance.

Commercial and Industrial Applications: MUN5111DW1T1G, PUMB11,115, PUMB11,135, RN2902,LF(CT, and UMB11NTN are suitable substitutes for non-automotive applications. All maintain Active product status and ROHS3 compliance. Selection among these options depends on package preference (SC-88, 6-TSSOP, US6, or UMT6) and internal resistor configuration (10 kOhms vs. 22 kOhms).

Package Compatibility:

SOT-363 / SC-88 compatible: MUN5111DW1T1G, NSVMUN5111DW1T3G
6-TSSOP compatible: PUMB11,115, PUMB11,135
US6 compatible: RN2902,LF(CT
UMT6 compatible: UMB11NTN

Internal Resistor Considerations: The DDA124EUQ-7-F features 22 kOhms base and emitter-base resistors. All substitute parts feature 10 kOhms resistors. This difference affects switching speed and base drive requirements. Designs must accommodate this variation through circuit analysis.

Power Dissipation: The DDA124EUQ-7-F is rated for 200 mW maximum power dissipation. Substitute parts offer equal or higher power ratings (200 mW to 300 mW), providing design margin.

Frequently Asked Questions (FAQ)

Q: Can MUN5111DW1T1G directly replace DDA124EUQ-7-F in automotive applications?

A: MUN5111DW1T1G is not AEC-Q101 qualified. For automotive applications requiring formal qualification, use NSVMUN5111DW1T3G, which carries AEC-Q101 certification and matches the DDA124EUQ-7-F electrical specifications.

Q: What is the impact of different internal resistor values (22 kOhms vs. 10 kOhms)?

A: The DDA124EUQ-7-F uses 22 kOhms base and emitter-base resistors, while all substitute parts use 10 kOhms. Lower resistor values reduce base drive impedance, affecting switching speed and saturation characteristics. Circuit designs must be analyzed to confirm compatibility with the lower impedance configuration.

Q: Are all substitute parts compatible with SOT-363 footprints?

A: MUN5111DW1T1G and NSVMUN5111DW1T3G are compatible with SOT-363 footprints. PUMB11,115 and PUMB11,135 use 6-TSSOP packaging, RN2902,LF(CT uses US6, and UMB11NTN uses UMT6. Verify PCB footprint compatibility before substitution.

Q: Which substitute part offers the best performance match for high-frequency applications?

A: UMB11NTN and DDA124EUQ-7-F both specify 250 MHz transition frequency. RN2902,LF(CT specifies 200 MHz. For applications requiring maximum frequency performance, UMB11NTN provides equivalent specifications to the original part.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: All identified substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the DDA124EUQ-7-F.

Q: What is the inventory availability of substitute parts?

A: Inventory levels vary by part number. NSVMUN5111DW1T3G offers the highest inventory (385,300 pcs), while MUN5111DW1T1G provides 4,400 pcs. Verify current availability with your supplier for production requirements.

Q: Can PUMB11,115 and PUMB11,135 be used interchangeably?

A: PUMB11,115 and PUMB11,135 are functionally equivalent variants of the PUMB11 base product. Both feature identical electrical specifications and 6-TSSOP packaging. Selection between them depends on supplier availability and packaging reel specifications.

Q: Is UMB11NTN suitable for applications with power dissipation limits below 150 mW?

A: UMB11NTN is rated for 150 mW maximum power dissipation, lower than the DDA124EUQ-7-F (200 mW). For applications approaching or exceeding 150 mW dissipation, select alternative substitutes with higher power ratings (MUN5111DW1T1G, NSVMUN5111DW1T3G, PUMB11,115, PUMB11,135, or RN2902,LF(CT).

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