DDA124EU-7-F Equivalent & Substitute Parts

Part Overview

The DDA124EU-7-F is a pre-biased dual PNP bipolar junction transistor (BJT) manufactured by Diodes Incorporated in SOT-363 surface mount packaging. This component integrates two PNP transistors with internal biasing resistors, designed for general-purpose switching and amplification applications. The device operates at 50V maximum collector-emitter breakdown voltage with 100mA maximum collector current and 200mW power dissipation. The part is active and in production, with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and functional equivalence within the pre-biased dual PNP transistor category.

Key Parameters

Parameter	Value	Unit
Transistor Type	2 PNP - Pre-Biased (Dual)	—
Current - Collector (Ic) (Max)	100	mA
Voltage - Collector Emitter Breakdown (Max)	50	V
Resistor - Base (R1)	22	kOhms
Resistor - Emitter Base (R2)	22	kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce	56 @ 5mA, 5V	—
Vce Saturation (Max) @ Ib, Ic	300 @ 500µA, 10mA	mV
Current - Collector Cutoff (Max)	500	nA
Frequency - Transition	250	MHz
Power - Max	200	mW
Package / Case	6-TSSOP, SC-88, SOT-363	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the DDA124EU-7-F are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

Transistor Type: 2 PNP - Pre-Biased (Dual)
Current - Collector (Ic) (Max): 100mA
Voltage - Collector Emitter Breakdown (Max): 50V
Package / Case: 6-TSSOP, SC-88, SOT-363 (surface mount variants)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Secondary Compatibility Parameters:

Resistor - Base (R1): 22kOhms (primary); 10kOhms (acceptable alternative)
Resistor - Emitter Base (R2): 22kOhms (primary); 10kOhms or 47kOhms (acceptable alternatives)
DC Current Gain (hFE) (Min): Range 20–80 @ specified conditions
Vce Saturation (Max): 150–300mV @ specified conditions
Current - Collector Cutoff (Max): 500nA–1µA
Frequency - Transition: 200–250MHz (where specified)
Power - Max: 150–385mW

Substitutes are grouped into direct equivalents (matching all primary parameters) and functional equivalents (matching primary parameters with acceptable variations in secondary parameters). All substitute parts maintain surface mount packaging and ROHS3 compliance.

Parameter Comparison

Parameter	DDA124EU-7-F	SMUN5112DW1T1G	MUN5111DW1T1G	PUMB1,115	PUMB1,135	PUMB16,115	RN2902,LF(CT	SMUN5111DW1T1G	UMB11NTN
Manufacturer	Diodes Inc.	onsemi	onsemi	Nexperia USA Inc.	Nexperia USA Inc.	NXP USA Inc.	Toshiba	onsemi	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)	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	100 mA	100 mA
Vce Breakdown (Max)	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V
R1 (Base)	22 kOhms	22 kOhms	10 kOhms	22 kOhms	22 kOhms	22 kOhms	10 kOhms	—	10 kOhms
R2 (Emitter Base)	22 kOhms	22 kOhms	10 kOhms	22 kOhms	22 kOhms	47 kOhms	10 kOhms	—	10 kOhms
hFE (Min) @ Ic, Vce	56 @ 5mA, 5V	60 @ 5mA, 10V	35 @ 5mA, 10V	60 @ 5mA, 5V	60 @ 5mA, 5V	80 @ 5mA, 5V	50 @ 10mA, 5V	35 @ 5mA, 10V	20 @ 5mA, 5V
Vce Saturation (Max) @ Ib, Ic	300 @ 500µA, 10mA	250 @ 300µA, 10mA	250 @ 300µA, 10mA	150 @ 500µA, 10mA	150 @ 500µA, 10mA	150 @ 500µA, 10mA	300 @ 250µA, 5mA	250 @ 300nA, 10mA	300 @ 500µA, 10mA
Icbo (Max)	500 nA	500 nA	500 nA	1 µA	1 µA	1 µA	500 nA	500 nA	500 nA
Frequency - Transition	250 MHz	—	—	—	—	—	200 MHz	—	250 MHz
Power - Max	200 mW	250 mW	250 mW	300 mW	300 mW	300 mW	200 mW	385 mW	150 mW
Package	SOT-363	SC-88/SC70-6/SOT-363	SC-88/SC70-6/SOT-363	6-TSSOP	6-TSSOP	SOT-363	US6	SC-88/SC70-6/SOT-363	UMT6
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade / Qualification	—	—	—	Automotive / AEC-Q100	Automotive / AEC-Q100	—	—	Automotive / AEC-Q101	—

Engineering Selection Recommendations

Direct Equivalents (Highest Compatibility):

SMUN5112DW1T1G (onsemi) and PUMB16,115 (NXP USA Inc.) are direct functional equivalents to the DDA124EU-7-F. Both maintain 100mA collector current, 50V breakdown voltage, 22kOhm base resistors, and surface mount packaging. SMUN5112DW1T1G offers 250mW power rating and SC-88/SC70-6/SOT-363 package options. PUMB16,115 provides 300mW power rating in SOT-363 packaging with higher DC current gain (80 @ 5mA, 5V). Both are ROHS3 compliant with unlimited MSL rating.

Functional Equivalents with Acceptable Parameter Variations:

PUMB1,115 and PUMB1,135 (Nexperia USA Inc.) are automotive-qualified alternatives with AEC-Q100 certification. These parts match the primary electrical specifications (100mA, 50V, 22kOhm resistors) and offer superior saturation voltage performance (150mV vs. 300mV). Power rating increases to 300mW. Package is 6-TSSOP. Both are suitable for applications requiring automotive-grade components.

SMUN5111DW1T1G (onsemi) provides automotive qualification (AEC-Q101) with 385mW power rating and SC-88/SC70-6/SOT-363 packaging. Internal resistors are not specified. This part is suitable for high-reliability automotive applications.

Alternative Equivalents (Different Internal Resistor Values):

MUN5111DW1T1G (onsemi) and RN2902,LF(CT (Toshiba) feature 10kOhm internal resistors instead of 22kOhm. MUN5111DW1T1G offers 250mW power in SC-88/SC70-6/SOT-363 packaging. RN2902,LF(CT provides 200mW power with 200MHz transition frequency in US6 packaging. Both maintain 100mA collector current and 50V breakdown voltage. These parts are suitable for applications where lower base resistance is acceptable.

UMB11NTN (Rohm Semiconductor) features 10kOhm internal resistors, 250MHz transition frequency, and 150mW power rating in UMT6 packaging. This part is suitable for high-frequency applications with lower power requirements.

Selection Criteria:

For direct replacement with identical specifications: SMUN5112DW1T1G or PUMB16,115
For automotive applications: PUMB1,115, PUMB1,135, or SMUN5111DW1T1G
For high-frequency applications: UMB11NTN or RN2902,LF(CT
For increased power dissipation: PUMB1,115, PUMB1,135, or SMUN5111DW1T1G

All substitute parts are ROHS3 compliant and maintain surface mount packaging compatibility.

Frequently Asked Questions (FAQ)

Q: Can PUMB1,115 replace DDA124EU-7-F in all applications?

A: PUMB1,115 is functionally equivalent with matching primary electrical specifications (100mA, 50V, 22kOhm resistors). The part offers improved saturation voltage (150mV vs. 300mV) and higher power rating (300mW vs. 200mW). Package is 6-TSSOP instead of SOT-363. Verify PCB layout compatibility before substitution. Automotive qualification (AEC-Q100) is an additional benefit for automotive applications.

Q: What is the difference between SOT-363 and 6-TSSOP packaging?

A: Both are 6-pin surface mount packages for dual transistor configurations. SOT-363 (also called SC-88) and 6-TSSOP are mechanically and electrically compatible in most applications. Pin assignments and footprints are equivalent. Verify component placement and solder pad dimensions with PCB design files before substitution.

Q: Are parts with 10kOhm internal resistors compatible with designs using 22kOhm resistor parts?

A: Parts with 10kOhm internal resistors (MUN5111DW1T1G, RN2902,LF(CT, UMB11NTN) have lower base resistance, resulting in faster switching and higher base current. These parts are functionally compatible but may exhibit different switching characteristics. Circuit performance depends on application requirements. Evaluate switching speed, power dissipation, and biasing conditions before substitution.

Q: Which substitute part offers the best saturation voltage performance?

A: PUMB1,115, PUMB1,135, and PUMB16,115 offer the lowest saturation voltage (150mV @ 500µA, 10mA) compared to the DDA124EU-7-F (300mV @ 500µA, 10mA). This results in lower power dissipation during saturation and improved switching efficiency. These parts are recommended for applications requiring minimal saturation losses.

Q: Can I use SMUN5111DW1T1G as a direct replacement?

A: SMUN5111DW1T1G is functionally equivalent with matching primary specifications (100mA, 50V). Internal resistor values are not specified in available data. The part offers automotive qualification (AEC-Q101) and higher power rating (385mW). Package is SC-88/SC70-6/SOT-363. Verify internal resistor specifications with the manufacturer before substitution in applications sensitive to base resistance values.

Q: What is the significance of AEC-Q100 and AEC-Q101 qualifications?

A: AEC-Q100 and AEC-Q101 are automotive industry reliability standards. Parts with these qualifications have undergone rigorous testing for temperature cycling, moisture resistance, and long-term reliability. PUMB1,115 and PUMB1,135 carry AEC-Q100 qualification. SMUN5111DW1T1G carries AEC-Q101 qualification. These certifications are required for automotive applications and indicate higher reliability standards.

Q: Is transition frequency important for my application?

A: Transition frequency (fT) indicates maximum switching speed capability. DDA124EU-7-F specifies 250MHz. Substitute parts with specified transition frequency include RN2902,LF(CT (200MHz) and UMB11NTN (250MHz). For applications requiring high-speed switching, select parts with transition frequency equal to or greater than the original specification. Parts without specified transition frequency are suitable for general-purpose switching applications below 100MHz.

Q: What is the difference between Tape & Reel (TR) and Bulk packaging?

A: Tape & Reel (TR) packaging is standard for automated assembly and high-volume production. Bulk packaging indicates loose components. PUMB16,115 is available in Bulk packaging. For automated PCB assembly, Tape & Reel packaging is required. Bulk packaging is suitable for manual assembly or low-volume applications. Verify packaging format compatibility with assembly equipment before ordering.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant, matching the environmental compliance of the DDA124EU-7-F. ROHS3 compliance indicates the absence of restricted substances (lead, cadmium, mercury, hexavalent chromium, PBBs, PBDEs). All parts maintain unlimited moisture sensitivity level (MSL 1), indicating no special storage or handling requirements.

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