MMBTA06-TP-HF Equivalent & Substitute Parts

Part Overview

The MMBTA06-TP-HF is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for interface applications requiring moderate switching speeds and current handling. This surface mount device operates across a wide temperature range and is classified as an active product. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and package specifications to ensure direct functional replacement in circuit designs.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	500	mA
Voltage - Collector Emitter Breakdown (Max)	80	V
Vce Saturation (Max)	250 mV @ 10 mA, 100 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min	100 @ 100 mA, 1 V	—
Power - Max	300	mW
Frequency - Transition	100	MHz
Operating Temperature	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—

Substitute Part Grouping Explanation

Substitute parts for the MMBTA06-TP-HF are identified through direct comparison of the following critical parameters:

Transistor Type: NPN configuration
Maximum Collector Current: 500 mA
Collector Emitter Breakdown Voltage: 80 V
Saturation Voltage: 250 mV @ 10 mA, 100 mA
Collector Cutoff Current: 100 nA
DC Current Gain: 100 @ 100 mA, 1 V
Transition Frequency: 100 MHz
Operating Temperature Range: -55°C to 150°C
Package Compatibility: SOT-23-3 / TO-236-3 surface mount

Parts are classified as Upgrade substitutes when all electrical parameters match or exceed the original specification while offering improved compliance certifications or packaging options. Parts are classified as Similar when package form differs while maintaining electrical equivalence.

Parameter Comparison

Parameter	MMBTA06-TP-HF (Micro Commercial Co)	SMMBTA06LT1G (onsemi)	SMMBTA06LT3G (onsemi)	SSTA06T116 (Rohm Semiconductor)
Transistor Type	NPN	NPN	NPN	NPN
Current - Collector (Ic) Max	500 mA	500 mA	500 mA	500 mA
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	80 V	80 V
Vce Saturation (Max)	250 mV @ 10 mA, 100 mA	250 mV @ 10 mA, 100 mA	250 mV @ 10 mA, 100 mA	250 mV @ 10 mA, 100 mA
Current - Collector Cutoff (Max)	100 nA	100 nA	100 nA	100 nA
DC Current Gain (hFE) Min	100 @ 100 mA, 1 V	100 @ 100 mA, 1 V	100 @ 100 mA, 1 V	100 @ 100 mA, 1 V
Power - Max	300 mW	225 mW	225 mW	350 mW
Frequency - Transition	100 MHz	100 MHz	100 MHz	100 MHz
Operating Temperature	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SOT-23-3	SOT-23-3	SOT-23-3	SST3
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	Not specified	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

SMMBTA06LT1G and SMMBTA06LT3G (onsemi) are direct upgrade substitutes for the MMBTA06-TP-HF. Both parts maintain identical electrical specifications across all critical parameters while offering ROHS3 compliance certification and MSL 1 moisture sensitivity rating. The onsemi variants are packaged in Tape & Reel format, providing supply chain advantages. Power dissipation is reduced to 225 mW, which is acceptable for applications designed within the original 300 mW specification. Both onsemi parts are active products with substantial inventory availability.

SSTA06T116 (Rohm Semiconductor) is a similar substitute offering equivalent electrical performance with enhanced power dissipation capability at 350 mW. This part utilizes the SST3 package form rather than standard SOT-23-3, requiring verification of PCB footprint compatibility. The Rohm device is ROHS3 compliant with MSL 1 rating and represents an alternative source for applications requiring higher thermal headroom.

Selection between upgrade and similar substitutes depends on PCB layout constraints and packaging requirements. All identified substitutes maintain active product status and compliance certifications suitable for production deployment.

Frequently Asked Questions (FAQ)

Q: Can SMMBTA06LT1G and SMMBTA06LT3G be used interchangeably with MMBTA06-TP-HF?

A: Yes. Both onsemi parts match all critical electrical parameters including collector current, breakdown voltage, saturation characteristics, current gain, and transition frequency. The reduced power rating (225 mW vs. 300 mW) is acceptable for circuits designed within the original specification. Both parts are pin-compatible in SOT-23-3 packages.

Q: What is the difference between SMMBTA06LT1G and SMMBTA06LT3G?

A: Both parts are electrically identical with matching specifications. The designation difference reflects manufacturing date codes or tape reel configurations. Selection between the two is based on inventory availability and supply chain requirements.

Q: Is SSTA06T116 a direct replacement?

A: SSTA06T116 is electrically equivalent but uses the SST3 package instead of SOT-23-3. PCB footprint compatibility must be verified before substitution. The SST3 package is mechanically similar but may require layout adjustments. This part offers higher power dissipation (350 mW) if thermal performance is a design consideration.

Q: Are there compliance differences between the original and substitute parts?

A: SMMBTA06LT1G, SMMBTA06LT3G, and SSTA06T116 are all ROHS3 compliant with MSL 1 moisture sensitivity rating. The original MMBTA06-TP-HF does not specify these certifications. Substitutes provide enhanced compliance documentation suitable for regulated applications.

Q: What packaging formats are available?

A: MMBTA06-TP-HF is supplied in cut tape format. SMMBTA06LT1G and SMMBTA06LT3G are supplied in Tape & Reel format, offering advantages for automated assembly. SSTA06T116 is available in Cut Tape & Digi-Reel format.

Q: Can these parts be used in high-temperature applications?

A: All identified parts operate across -55°C to 150°C junction temperature range, supporting high-temperature circuit designs within this specification window.

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