MMDT2222A-TP Equivalent & Substitute Parts

Part Overview

The MMDT2222A-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 with unlimited moisture sensitivity rating (MSL 1). The device integrates two NPN transistors in a single 6-pin package, designed for general-purpose switching and amplification applications requiring 40V collector-emitter breakdown voltage and 600mA maximum collector current. Substitute parts are necessary to address supply chain availability, alternative packaging formats, or manufacturer preferences while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Transistor Type	2 NPN (Dual)	—
Current - Collector (Ic) (Max)	600	mA
Voltage - Collector Emitter Breakdown (Max)	40	V
Vce Saturation (Max) @ Ib, Ic	1V @ 50mA, 500mA	—
Current - Collector Cutoff (Max)	10	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 150mA, 10V	—
Power - Max	150	mW
Frequency - Transition	300	MHz
Operating Temperature	-55 to 150	°C
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

Substitution of the MMDT2222A-TP is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor configuration: 2 NPN (Dual) array
Package type: SOT-363 (6-TSSOP, SC-88)
Collector-emitter breakdown voltage: 40V minimum
Maximum collector current: 600mA minimum
DC current gain (hFE): 100 minimum at specified conditions
Transition frequency: 300MHz minimum
Operating temperature range: -55°C to 150°C minimum
Surface mount technology
RoHS3 compliance
MSL rating: 1 (Unlimited)

Acceptable Parameter Variations:

Power dissipation may exceed 150mW (higher ratings are acceptable)
Collector-emitter breakdown voltage may exceed 40V
Collector cutoff current (ICBO) may be lower than 10nA
Vce saturation characteristics may differ within functional limits
Packaging format may vary (Tape & Reel vs. Cut Tape) without affecting electrical compatibility

Parts that fail to meet the primary criteria are excluded from substitution consideration.

Parameter Comparison

Part Number	Manufacturer	Ic (Max)	Vce(BR)	Vce Sat @ Ib, Ic	hFE (Min)	fT	Power (Max)	Temp Range	Package	Packaging Type
MMDT2222A-TP	Micro Commercial Co	600mA	40V	1V @ 50mA, 500mA	100 @ 150mA, 10V	300MHz	150mW	-55 to 150°C	SOT-363	Tape & Reel
CMKT2222A TR PBFREE	Central Semiconductor Corp	600mA	40V	1V @ 50mA, 500mA	100 @ 150mA, 10V	300MHz	350mW	-65 to 150°C	SOT-363	Tape & Reel
MBT2222ADW1T1G	onsemi	600mA	40V	1V @ 50mA, 500mA	100 @ 150mA, 10V	300MHz	150mW	-55 to 150°C	SC-88/SC70-6/SOT-363	Cut Tape & Digi-Reel
MMDT2222A-7-F	Diodes Incorporated	600mA	40V	1V @ 50mA, 500mA	100 @ 150mA, 10V	300MHz	200mW	-55 to 150°C	SOT-363	Tape & Reel
NSVBT2222ADW1T1G	onsemi	600mA	40V	1V @ 50mA, 500mA	100 @ 150mA, 10V	300MHz	150mW	-55 to 150°C	SC-88/SC70-6/SOT-363	Tape & Reel
MMDT3904-7-F	Diodes Incorporated	200mA	40V	300mV @ 5mA, 50mA	100 @ 10mA, 1V	300MHz	200mW	-55 to 150°C	SOT-363	Cut Tape & Digi-Reel
MMDT4401-7-F	Diodes Incorporated	600mA	40V	750mV @ 50mA, 500mA	100 @ 150mA, 1V	250MHz	200mW	-55 to 150°C	SOT-363	Tape & Reel
BC847BS-7-F	Diodes Incorporated	100mA	45V	400mV @ 5mA, 100mA	200 @ 2mA, 5V	100MHz	200mW	-65 to 150°C	SOT-363	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Substitutes (Electrically and Mechanically Equivalent):

The following parts meet all primary substitution criteria and are direct replacements for the MMDT2222A-TP:

CMKT2222A TR PBFREE (Central Semiconductor Corp): Identical electrical specifications with extended lower operating temperature limit (-65°C vs. -55°C) and higher power rating (350mW vs. 150mW). RoHS3 compliant, MSL 1. Tape & Reel packaging.
MBT2222ADW1T1G (onsemi): Identical electrical specifications with matching power rating (150mW) and temperature range (-55 to 150°C). RoHS3 compliant, MSL 1. Available in Cut Tape & Digi-Reel format.
MMDT2222A-7-F (Diodes Incorporated): Identical electrical specifications with slightly higher power rating (200mW vs. 150mW). RoHS3 compliant, MSL 1. Tape & Reel packaging.
NSVBT2222ADW1T1G (onsemi): Identical electrical specifications with matching power rating (150mW) and temperature range (-55 to 150°C). RoHS3 compliant, MSL 1. Tape & Reel packaging.

Conditional Substitutes (Reduced Current Rating):

MMDT3904-7-F (Diodes Incorporated): Meets package, voltage, and frequency requirements but with reduced maximum collector current (200mA vs. 600mA). Suitable only for applications requiring ≤200mA collector current. RoHS3 compliant, MSL 1.

Non-Recommended Substitutes:

MMDT4401-7-F (Diodes Incorporated): Meets current and voltage specifications but exhibits reduced transition frequency (250MHz vs. 300MHz) and higher Vce saturation (750mV vs. 1V). Not recommended for high-frequency applications.
BC847BS-7-F (Diodes Incorporated): Fails primary substitution criteria due to insufficient maximum collector current (100mA vs. 600mA) and reduced transition frequency (100MHz vs. 300MHz). Not suitable as a substitute.

All recommended substitutes maintain RoHS3 compliance, MSL 1 rating, and active product status.

Frequently Asked Questions (FAQ)

Q: Can MMDT3904-7-F replace MMDT2222A-TP in all applications?

A: No. The MMDT3904-7-F has a maximum collector current of 200mA compared to 600mA for the MMDT2222A-TP. It is suitable only for circuits designed for ≤200mA collector current. All other electrical parameters (voltage, frequency, gain) are compatible.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Both packaging formats contain identical components. Tape & Reel packaging is supplied on continuous tape for automated assembly lines. Cut Tape & Digi-Reel packaging is supplied in smaller quantities on tape segments. The electrical and mechanical specifications are identical.

Q: Is CMKT2222A TR PBFREE a direct replacement for MMDT2222A-TP?

A: Yes. The CMKT2222A TR PBFREE meets all primary substitution criteria with identical collector current (600mA), voltage (40V), gain (hFE 100), and frequency (300MHz) specifications. It offers an extended lower operating temperature limit (-65°C vs. -55°C) and higher power dissipation rating (350mW vs. 150mW), making it suitable for demanding thermal environments.

Q: Why does BC847BS-7-F appear in the substitute list if it is not recommended?

A: BC847BS-7-F was included in the provided substitute list but does not meet the primary substitution criteria due to insufficient maximum collector current (100mA vs. 600mA required) and reduced transition frequency (100MHz vs. 300MHz required). It is not suitable as a substitute for the MMDT2222A-TP.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed in this reference maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, consistent with the original MMDT2222A-TP specification.

Q: Can MMDT4401-7-F be used as a substitute?

A: The MMDT4401-7-F meets the collector current (600mA) and voltage (40V) requirements but exhibits reduced transition frequency (250MHz vs. 300MHz) and higher Vce saturation voltage (750mV vs. 1V). It is not recommended for applications requiring the full 300MHz frequency specification or optimized saturation characteristics.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: dual NPN transistor configuration, SOT-363 package type, 40V minimum collector-emitter breakdown voltage, 600mA minimum collector current, hFE 100 minimum, 300MHz minimum transition frequency, -55°C to 150°C operating temperature range, surface mount technology, RoHS3 compliance, and MSL 1 rating.

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