MCP47FVB21A3-E/ST Equivalent & Substitute Parts

Part Overview

The MCP47FVB21A3-E/ST is a 12-bit Digital to Analog Converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring voltage output conversion. This component operates across a wide supply voltage range (2.7V to 5.5V) and features I2C interface compatibility, making it suitable for embedded systems and industrial control applications. The part is currently in active production status with full RoHS3 compliance and REACH unaffected certification. Identifying equivalent substitute parts is essential for supply chain continuity, inventory optimization, and design flexibility when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

MCP47FVB21A3-E/ST

Microchip TechnologyIn Stock: 1206MCP47FVB21A3-E/ST Datasheet

Current PartRFQ

MCP47FVB21A0-E/ST

Microchip TechnologyIn Stock: 1311MCP47FVB21A0-E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The MCP47FVB21A0-E/ST qualifies as a parametric equivalent to the MCP47FVB21A3-E/ST based on strict alignment across all critical electrical and mechanical parameters. Substitution eligibility is determined by the following key parameters:

• Resolution and Converter Count: Both parts feature 12-bit resolution with a single D/A converter
• Output Configuration: Identical voltage-buffered output type with I2C digital interface
• Performance Specifications: Matching settling time (6µs typical), INL/DNL tolerances (±1.5, ±0.2 LSB), and R-2R architecture
• Supply Voltage Compatibility: Identical analog and digital supply voltage ranges (2.7V ~ 5.5V)
• Thermal and Environmental Range: Matching operating temperature range (-40°C ~ 125°C)
• Physical Form Factor: Identical 8-TSSOP package with 0.173" width (4.40mm)
• Compliance and Certification: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity level (MSL 1)

The difference between these part numbers reflects internal device configuration variants within the same product family, with no impact on functional or electrical performance in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP47FVB21A3-E/ST and MCP47FVB21A0-E/ST are active production components from Microchip Technology with identical compliance certifications. Selection between these parts should be based on:

• Supply Chain Availability: Current inventory levels (MCP47FVB21A3-E/ST: 1099 pcs; MCP47FVB21A0-E/ST: 1202 pcs) may influence procurement decisions
• Regulatory Compliance: Both parts satisfy ROHS3 and REACH requirements for regulated markets
• Environmental Conditions: Both support the full -40°C to 125°C operating range, suitable for industrial and automotive applications
• Packaging and Handling: Identical MSL 1 rating indicates no special moisture control requirements during storage or assembly

No technical performance differentiation exists between these parts. Selection is a matter of availability and supply chain strategy.

Frequently Asked Questions (FAQ)

Q: Can MCP47FVB21A0-E/ST be used as a direct replacement for MCP47FVB21A3-E/ST?

A: Yes. All electrical parameters, performance specifications, package dimensions, and compliance certifications are identical. No circuit modifications or design changes are required for substitution.

Q: Are there any differences in I2C protocol implementation between these parts?

A: No. Both parts implement identical I2C interface specifications and operate with the same communication protocol.

Q: Do these parts require different PCB layout considerations?

A: No. Both use the 8-TSSOP package with identical pin assignments and physical dimensions (0.173" width, 4.40mm). PCB layouts are fully compatible.

Q: What is the significance of the "A3" and "A0" designations in the part numbers?

A: These designations represent internal device configuration variants within the MCP47FVB21 product family. They do not affect functional performance, electrical characteristics, or application compatibility.

Q: Are moisture sensitivity precautions the same for both parts?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no special moisture control measures are required during storage, handling, or assembly.

Q: Can these parts be mixed in the same production batch?

A: Yes. Identical electrical and mechanical specifications allow unrestricted interchangeability in manufacturing and assembly processes.

Q: What supply voltage range do these parts support?

A: Both parts operate with analog and digital supply voltages from 2.7V to 5.5V, providing flexibility for single-supply or dual-supply configurations.