MCP4352T-503E/ST Equivalent & Substitute Parts

Part Overview

The MCP4352T-503E/ST is a digital potentiometer manufactured by Microchip Technology, classified as a data acquisition component. This integrated circuit provides 50kΩ resistance with 4 independent circuits and 257 taps, controlled via SPI interface. The device is currently in active production status and is ROHS3 compliant. Substitute parts are identified when packaging or supplier configurations differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

MCP4352T-503E/ST
Microchip TechnologyIn Stock: 2449MCP4352T-503E/ST Datasheet
MCP4352T-503E/ST
Current Part
MCP4352-503E/ST
Microchip TechnologyIn Stock: 1001MCP4352-503E/ST Datasheet
MCP4352-503E/ST
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Key Parameters

Parameter Value
Resistance (Ohms) 50k
Number of Circuits 4
Number of Taps 257
Interface SPI
Voltage Supply Range 1.8V ~ 5.5V
Tolerance ±20%
Temperature Coefficient 150ppm/°C
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Operating Temperature Range -40°C ~ 125°C
Mounting Type Surface Mount
Memory Type Volatile
Resistance - Wiper (Ohms) 75

Substitute Part Grouping Explanation

Substitution eligibility for the MCP4352T-503E/ST is determined by strict equivalence across all electrical and mechanical parameters. The primary differentiator between the main part and identified substitutes is packaging configuration (Tape & Reel versus Tube), which does not affect functional performance or circuit integration.

Substitution criteria are based on the following parameters:

  • Resistance value: 50kΩ
  • Circuit configuration: 4 independent circuits
  • Tap resolution: 257 taps
  • Interface protocol: SPI
  • Supply voltage range: 1.8V ~ 5.5V
  • Package type: 14-TSSOP
  • Temperature operating range: -40°C ~ 125°C
  • Compliance certifications: ROHS3, REACH Unaffected

Parameter Comparison

Parameter MCP4352T-503E/ST (Main) MCP4352-503E/ST (Substitute)
Manufacturer Microchip Technology Microchip Technology
Resistance (Ohms) 50k 50k
Number of Circuits 4 4
Number of Taps 257 257
Interface SPI SPI
Voltage - Supply 1.8V ~ 5.5V 1.8V ~ 5.5V
Tolerance ±20% ±20%
Temperature Coefficient (Typ) 150ppm/°C 150ppm/°C
Mounting Type Surface Mount Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP (0.173", 4.40mm Width)
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ) 75 75
Memory Type Volatile Volatile
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected
Packaging Configuration Tape & Reel (TR) Tube

Engineering Selection Recommendations

Both the MCP4352T-503E/ST and MCP4352-503E/ST are active production components from Microchip Technology with identical electrical specifications and compliance certifications. Selection between these parts should be based on supply chain requirements and packaging logistics.

The MCP4352T-503E/ST in Tape & Reel packaging is suitable for high-volume automated assembly processes. The MCP4352-503E/ST in Tube packaging accommodates lower-volume applications or manual assembly workflows. Both configurations maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can MCP4352-503E/ST replace MCP4352T-503E/ST in production?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging configuration only. Tape & Reel suits automated pick-and-place assembly, while Tube packaging is used for manual handling or lower-volume production runs.

Q: Are there any functional differences between these parts?

A: No. Both parts provide identical 50kΩ resistance, 4-circuit configuration, 257-tap resolution, SPI interface, and operating specifications. Functional performance is equivalent.

Q: What is the significance of the packaging difference?

A: Packaging affects supply chain handling and assembly methodology, not component performance. Tape & Reel (TR) is optimized for automated assembly lines. Tube packaging is used for manual assembly or component storage in lower quantities.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both MCP4352T-503E/ST and MCP4352-503E/ST are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions.

Q: What is the operating temperature range for these parts?

A: Both parts operate across -40°C to 125°C, suitable for industrial and commercial temperature environments.

Q: Can these parts be used interchangeably in circuit design?

A: Yes. Circuit design compatibility is identical. PCB layout and schematic integration remain unchanged between the two part numbers.

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