TC649BEUATR Equivalent & Substitute Parts

Part Overview

The TC649BEUATR is an active Brushless DC (BLDC) motor driver controller manufactured by Microchip Technology, designed for fan control applications. Operating across a 3V to 5.5V supply voltage range, this surface-mount device functions as a speed controller with pre-driver low-side output configuration using parallel interface architecture. The device is housed in an 8-MSOP package and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Finding equivalent or substitute parts may be necessary due to inventory constraints, packaging preferences, or supply chain requirements while maintaining identical electrical and mechanical functionality.

Substiute Parts

TC649BEUATR

Microchip TechnologyIn Stock: 976TC649BEUATR Datasheet

Current PartRFQ

TC649BEUA

Microchip TechnologyIn Stock: 1575TC649BEUA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC649BEUATR is determined by strict equivalence across the following critical parameters:

• Manufacturer & Base Product: Both main and substitute parts must originate from Microchip Technology and share the TC649 base product number
• Motor Type & Function: BLDC motor controller with speed control function
• Output Configuration & Interface: Pre-driver low-side output with parallel interface
• Electrical Specifications: Identical 3V to 5.5V supply voltage range and -40°C to 85°C operating temperature
• Package & Mounting: 8-MSOP surface-mount package with 0.118" (3.00mm) width
• Compliance: ROHS3 compliance and REACH unaffected status

The TC649BEUA qualifies as a direct substitute based on these parameters. The only variance between the main part and substitute is the packaging format (Tape & Reel versus Tube) and moisture sensitivity level classification, which do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both TC649BEUATR and TC649BEUA are active products from Microchip Technology with identical electrical and mechanical specifications. Selection between these parts should be based on the following criteria:

TC649BEUATR (Tape & Reel packaging): Suitable for high-volume automated assembly operations where tape-and-reel format optimizes pick-and-place machine compatibility and reduces handling labor.

TC649BEUA (Tube packaging): Appropriate for lower-volume production runs, manual assembly processes, or applications where tube packaging reduces storage footprint and simplifies inventory management.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for industrial and consumer applications. The difference in moisture sensitivity level (MSL 1 versus MSL 2) reflects storage condition requirements; MSL 2 requires controlled humidity storage for up to one year, while MSL 1 has unlimited shelf life under standard conditions.

Frequently Asked Questions (FAQ)

Q: Can TC649BEUA be used as a direct replacement for TC649BEUATR in PCB assembly?

A: Yes. Both parts are electrically and mechanically identical. The only differences are packaging format (Tape & Reel versus Tube) and moisture sensitivity classification. PCB footprint, pin configuration, electrical performance, and thermal characteristics are identical.

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

A: Tape & Reel packaging is optimized for automated pick-and-place assembly with continuous tape feeding. Tube packaging contains loose components in a cylindrical container, suitable for manual assembly or lower-volume production. Both formats contain the same component.

Q: Does the MSL 2 rating of TC649BEUA affect performance?

A: No. Moisture Sensitivity Level (MSL) classification affects storage and handling requirements, not electrical performance. MSL 2 requires storage in controlled humidity (≤60% RH) for up to one year. MSL 1 has unlimited shelf life under standard conditions. Once soldered to a PCB, both parts perform identically.

Q: Are both parts suitable for fan controller applications?

A: Yes. Both TC649BEUATR and TC649BEUA are specified for fan controller applications with identical BLDC motor control capability, 3V to 5.5V supply voltage range, and -40°C to 85°C operating temperature.

Q: What is the pin configuration for the 8-MSOP package?

A: Both parts use the 8-MSOP package with 0.118" (3.00mm) width. Pin configuration is identical between TC649BEUATR and TC649BEUA.