MCP4902T-E/ST Equivalent & Substitute Parts

Part Overview

The MCP4902T-E/ST is an 8-bit Digital to Analog Converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring dual voltage output channels. This device features SPI interface compatibility, external reference capability, and operates across a wide supply voltage range of 2.7V to 5.5V for both analog and digital supplies. The component is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Identifying equivalent substitute parts is essential for supply chain continuity, inventory optimization, and design flexibility when the primary part number becomes unavailable or when alternative packaging formats better suit manufacturing requirements.

Substiute Parts

MCP4902T-E/ST

Microchip TechnologyIn Stock: 1117MCP4902T-E/ST Datasheet

Current PartRFQ

MCP4902-E/ST

Microchip TechnologyIn Stock: 857MCP4902-E/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP4902T-E/ST are determined by strict equivalence across all critical electrical and mechanical parameters. The primary substitution criterion is the base product number MCP4902, which ensures identical die functionality, pin configuration, and electrical performance. Substitution validity is established through matching the following parameters: 8-bit resolution, dual DAC channels, 4.5µs settling time, buffered voltage output, SPI interface, external reference architecture, identical supply voltage ranges (2.7V ~ 5.5V), matching INL/DNL specifications (±0.25, ±0.2 LSB), String DAC architecture, and operating temperature range (-40°C ~ 125°C). The 14-TSSOP package format remains constant across all qualified substitutes. Differences in packaging configuration (Tape & Reel versus Tube) do not affect electrical compatibility and represent only logistical variations suitable for different manufacturing workflows.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP4902T-E/ST and MCP4902-E/ST maintain active production status with identical ROHS3 compliance and REACH unaffected certifications, establishing full regulatory equivalence. Selection between these parts should be based on packaging and supply chain requirements rather than electrical performance. The MCP4902T-E/ST in Tape & Reel format is optimized for high-volume automated assembly processes, while the MCP4902-E/ST in Tube packaging accommodates lower-volume production runs and manual handling workflows. Both variants carry unlimited moisture sensitivity rating (MSL 1), eliminating bake-out requirements and simplifying storage protocols. The identical base product number MCP4902 guarantees functional interchangeability at the circuit level, with no design modifications required when transitioning between these part numbers.

Frequently Asked Questions (FAQ)

Q: Can MCP4902-E/ST replace MCP4902T-E/ST in production? A: Yes. Both parts share identical electrical specifications, pin configuration, and performance characteristics. The only difference is packaging format (Tube versus Tape & Reel), which does not affect circuit functionality.

Q: What determines compatibility between these DAC variants? A: Compatibility is established through matching base product number (MCP4902), resolution (8-bit), channel count (2 DACs), interface protocol (SPI), supply voltage ranges (2.7V ~ 5.5V), settling time (4.5µs), and package type (14-TSSOP). All these parameters are identical between the main part and substitute.

Q: Are there any thermal or environmental differences? A: No. Both parts operate across the identical temperature range (-40°C ~ 125°C) and carry the same moisture sensitivity level (MSL 1, Unlimited), ensuring equivalent performance in all environmental conditions.

Q: Does packaging format affect PCB layout or soldering? A: No. Both Tape & Reel and Tube packaging contain the same 14-TSSOP surface mount component. PCB footprint, solder reflow profile, and assembly procedures remain unchanged.

Q: Are compliance certifications identical? A: Yes. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical ECCN and HTSUS classifications, ensuring regulatory equivalence for all markets.