DMMT3904-TP Equivalent & Substitute Parts

Part Overview

The DMMT3904-TP is a dual NPN bipolar junction transistor array manufactured by Micro Commercial Co in SOT-363 surface mount packaging. This component is classified as an active product and is RoHS3 compliant. The DMMT3904-TP serves applications requiring matched or general-purpose dual NPN transistor functionality in compact form factors. Substitute parts are identified to address inventory availability, extended temperature range requirements, or alternative manufacturer sourcing needs while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Transistor Type	2 NPN (Dual)	—
Current - Collector (Ic) Max	200	mA
Voltage - Collector Emitter Breakdown (Max)	40	V
Vce Saturation (Max)	300	mV @ 5mA, 50mA
DC Current Gain (hFE) Min	100	@ 10mA, 1V
Power - Max	200	mW
Frequency - Transition	300	MHz
Operating Temperature	-55 to 150	°C (TJ)
Package / Case	6-TSSOP, SC-88, SOT-363	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the DMMT3904-TP is determined by the following criteria:

Primary Compatibility Parameters:

Transistor configuration: 2 NPN (Dual) array
Maximum collector current: 200 mA minimum
Collector-emitter breakdown voltage: 40 V minimum
Vce saturation: 300 mV maximum @ 5mA, 50mA
DC current gain (hFE): 100 minimum @ 10mA, 1V
Transition frequency: 300 MHz minimum
Package: SOT-363 / SC-88 / 6-TSSOP surface mount
Compliance: RoHS3 compliant, MSL 1

Substitution Categories:

Category A - Direct Electrical Equivalents (Identical Specifications): Parts meeting all primary parameters with no derating in electrical performance.

Category B - Extended Temperature Range (Improved Specification): Parts with identical electrical performance but extended lower operating temperature limit (-65°C vs -55°C), providing enhanced reliability in wider temperature environments.

Category C - Higher Current Capability (Uprated Performance): Parts with collector current exceeding 200 mA, suitable for applications requiring higher current handling while maintaining voltage and frequency specifications.

Category D - Reduced Power Dissipation (Derating Consideration): Parts with maximum power rating below 200 mW, requiring thermal design verification in power-sensitive applications.

Parameter Comparison

Part Number	Manufacturer	Ic Max (mA)	Vce Breakdown (V)	Vce Sat (mV)	hFE Min	Power Max (mW)	Freq (MHz)	Temp Range (°C)	Package	Category
DMMT3904-TP	Micro Commercial Co	200	40	300 @ 5mA, 50mA	100 @ 10mA, 1V	200	300	-55 to 150	SOT-363	Reference
DMMT3904W-7-F	Diodes Incorporated	200	40	300 @ 5mA, 50mA	100 @ 10mA, 1V	200	300	-65 to 150	SOT-363	B
DMMT3904WQ-7-F	Diodes Incorporated	200	40	300 @ 5mA, 50mA	100 @ 10mA, 1V	200	300	-65 to 150	SOT-363	B
MBT3904DW1T1G	onsemi	200	40	300 @ 5mA, 50mA	100 @ 10mA, 1V	150	300	-55 to 150	SC-88/SOT-363	D
MBT3904DW1T3G	onsemi	200	40	300 @ 5mA, 50mA	100 @ 10mA, 1V	150	300	-55 to 150	SC-88/SOT-363	D
MMDT2222A-7-F	Diodes Incorporated	600	40	1000 @ 50mA, 500mA	100 @ 150mA, 10V	200	300	-55 to 150	SOT-363	C

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required): DMMT3904W-7-F and DMMT3904WQ-7-F from Diodes Incorporated are direct substitutes with identical electrical specifications. Both are RoHS3 compliant, MSL 1 rated, and active products. DMMT3904W-7-F includes matched pair designation, beneficial for precision applications. DMMT3904WQ-7-F provides higher inventory availability (12,266 pcs vs 50,400 pcs for the W variant).

For Extended Temperature Applications: DMMT3904W-7-F and DMMT3904WQ-7-F extend the lower operating temperature to -65°C, compared to -55°C for the reference part. This specification improvement is suitable for industrial and automotive environments requiring wider temperature margins.

For Thermal-Constrained Designs: MBT3904DW1T1G and MBT3904DW1T3G from onsemi maintain all electrical parameters but specify 150 mW maximum power dissipation versus 200 mW. These parts are suitable for applications where thermal management is critical. Both are RoHS3 compliant, MSL 1 rated, and active products. MBT3904DW1T1G offers significantly higher inventory (898,782 pcs).

For Higher Current Applications: MMDT2222A-7-F from Diodes Incorporated provides 600 mA collector current capability, three times the reference part rating. This part is suitable for applications requiring higher current handling. Note that Vce saturation increases to 1000 mV at higher current levels (50mA, 500mA), requiring circuit verification. RoHS3 compliant and MSL 1 rated.

Compliance and Regulatory Status: All substitute parts maintain RoHS3 compliance, REACH unaffected status, and MSL 1 (unlimited moisture sensitivity) ratings. All parts are classified as active products with no end-of-life notices.

Frequently Asked Questions (FAQ)

Q: Can DMMT3904W-7-F replace DMMT3904-TP in all applications?

A: Yes. DMMT3904W-7-F meets or exceeds all electrical specifications of DMMT3904-TP. The extended temperature range (-65°C to 150°C vs -55°C to 150°C) provides additional margin. Both use identical SOT-363 packaging and are pin-compatible.

Q: What is the difference between DMMT3904W-7-F and DMMT3904WQ-7-F?

A: Both parts are electrically identical with -65°C to 150°C operating range. DMMT3904W-7-F is designated as a matched pair, providing tighter parameter tracking between the two transistors. DMMT3904WQ-7-F has higher inventory availability. Selection depends on application precision requirements.

Q: Why do MBT3904DW1T1G and MBT3904DW1T3G specify 150 mW instead of 200 mW?

A: These onsemi parts have a lower maximum power dissipation rating. They are suitable for applications where thermal dissipation is limited. Circuit designs must verify that actual power dissipation remains within 150 mW limits. All other electrical parameters remain identical.

Q: Is MMDT2222A-7-F a suitable substitute for DMMT3904-TP?

A: MMDT2222A-7-F is electrically compatible but rated for higher collector current (600 mA vs 200 mA). It is suitable for applications requiring higher current capability. However, Vce saturation is higher (1000 mV vs 300 mV at higher currents), requiring circuit verification to ensure proper operation in saturation-mode applications.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts use SOT-363 or SC-88/SOT-363 packaging, which are mechanically and electrically equivalent. PCB footprints are identical. No layout changes are required.

Q: What is the inventory status of substitute parts?

A: DMMT3904W-7-F: 50,400 pcs; DMMT3904WQ-7-F: 12,266 pcs; MBT3904DW1T1G: 898,782 pcs; MBT3904DW1T3G: 35,200 pcs; MMDT2222A-7-F: 17,680 pcs. MBT3904DW1T1G offers the highest availability.

Q: Do all parts meet RoHS3 compliance?

A: Yes. All listed substitute parts are RoHS3 compliant with REACH unaffected status and MSL 1 moisture sensitivity rating.

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