MMBTA05-HF Equivalent & Substitute Parts

Part Overview

The MMBTA05-HF is an NPN bipolar junction transistor manufactured by Comchip Technology, designed for general-purpose switching and amplification applications. This surface mount device operates at 60 V collector-emitter breakdown voltage with a maximum collector current of 500 mA and 300 mW power dissipation. The part is currently in active production status with 2686 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to component availability, supply chain considerations, or design flexibility across multiple qualified manufacturers.

Substiute Parts

MMBTA05-HF

Comchip TechnologyIn Stock: 2755MMBTA05-HF Datasheet

Current PartRFQ

MMBTA05-7-F

Diodes IncorporatedIn Stock: 47164MMBTA05-7-F Datasheet

Parametric EquivalentRFQ

MMBTA05-TP

Micro Commercial CoIn Stock: 28536MMBTA05-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMBTA05-HF are qualified based on strict electrical and mechanical parameter equivalence. The substitution criteria are defined by the following parameters:

Electrical Parameters:

• Collector-Emitter Breakdown Voltage: 60 V (maximum)
• Collector Current: 500 mA (maximum)
• Power Dissipation: 300 mW (maximum)
• Transition Frequency: 100 MHz
• DC Current Gain (hFE): 100 minimum at 100 mA, 1 V
• Vce Saturation: 250 mV maximum at specified conditions
• Collector Cutoff Current: 100 nA (maximum)

Mechanical Parameters:

• Package Type: SOT-23-3 (TO-236-3, SC-59)
• Mounting Type: Surface Mount
• Transistor Type: NPN

Compliance Parameters:

• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain identical electrical performance specifications and package compatibility with the MMBTA05-HF. Differences in packaging format (Tape & Reel versus Cut Tape) and operating temperature range do not affect functional substitution capability.

Parameter Comparison

Engineering Selection Recommendations

All three parts—MMBTA05-HF, MMBTA05-7-F, and MMBTA05-TP—are active production components with full RoHS3 compliance and unlimited moisture sensitivity rating. Selection between these parts is based on availability, packaging format requirements, and supply chain considerations rather than electrical performance differences.

MMBTA05-HF (Comchip Technology): Primary choice when Comchip sourcing is specified or preferred. Supplied in Tape & Reel format with 2686 units currently in stock.

MMBTA05-7-F (Diodes Incorporated): Suitable for applications requiring Cut Tape or Digi-Reel® packaging formats. Offers extended operating temperature specification (-55°C to 150°C) and highest current inventory at 47100 units.

MMBTA05-TP (Micro Commercial Co): Qualified substitute supplied in Tape & Reel format with 28432 units in stock. Provides extended operating temperature range (-55°C to 150°C) and REACH compliance documentation.

All three parts are electrically and mechanically interchangeable for applications requiring NPN transistors with 60 V breakdown, 500 mA collector current, and SOT-23-3 surface mount packaging.

Frequently Asked Questions (FAQ)

Q: Are MMBTA05-HF, MMBTA05-7-F, and MMBTA05-TP electrically identical?

A: Yes. All three parts share identical electrical specifications including collector-emitter breakdown voltage (60 V), maximum collector current (500 mA), power dissipation (300 mW), transition frequency (100 MHz), DC current gain (100 minimum), and saturation characteristics. They are parametric equivalents.

Q: Can I substitute MMBTA05-7-F for MMBTA05-HF in my PCB design?

A: Yes. Both parts use the same SOT-23-3 package with identical pin configuration and electrical performance. The primary difference is packaging format (Cut Tape versus Tape & Reel) and manufacturer, which do not affect circuit functionality.

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

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) supplies components on cut segments of carrier tape, typically for lower-volume or mixed-component orders. Both formats contain the same component in the same package.

Q: Does the extended operating temperature range of MMBTA05-7-F and MMBTA05-TP affect substitution?

A: No. The extended range (-55°C to 150°C versus up to 150°C) represents an additional capability that does not restrict substitution. Parts with wider temperature specifications are suitable for applications within the narrower range.

Q: Are all three parts RoHS3 compliant?

A: Yes. MMBTA05-HF, MMBTA05-7-F, and MMBTA05-TP are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and reliability standards.

Q: Which part should I select if availability is critical?

A: MMBTA05-7-F from Diodes Incorporated offers the highest inventory level at 47100 units. MMBTA05-TP from Micro Commercial Co provides 28432 units. Both exceed the 2686 units available for MMBTA05-HF.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. All three parts are pin-compatible in SOT-23-3 packages and electrically equivalent. No circuit modifications or PCB redesign is required for substitution.