MCP4131-502E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The MCP4131-502E/P is a single-channel 5 kΩ SPI digital potentiometer with 128 wiper positions and increment/decrement control interface, offering 2 kHz bandwidth in an 8-pin PDIP package for programmable resistance adjustment.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4131-502E/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5770(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel 5 kΩ end-to-end resistance with 128 wiper positions for fine resolution
- SPI increment/decrement control interface for easy microcontroller integration
- 2 kHz bandwidth enabling use in audio and signal path applications
- Non-volatile memory-free design with volatile wiper position in 8-pin PDIP
- RoHS-compliant lead-free construction with JESD-609 code e3
- Single function device simplifying firmware and hardware design
Applications
The MCP4131-502E/P is used in programmable gain circuits, digitally controlled biasing networks, and volume control stages in audio and instrumentation equipment. Its SPI increment/decrement interface allows a microcontroller to step through 128 resistance positions, making it suitable for adaptive filter tuning, LED dimming, and calibration offset adjustment in prototyping and low-volume production boards.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5V |
| Supply Current-Max | 1mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 5000Ω |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP4131-502E/P provide, and what resistance step size does that yield for a 5 kΩ end-to-end value?
The MCP4131-502E/P has 128 wiper positions over a 5 kΩ end-to-end resistance, giving an approximate step size of 39 Ω per step. This fine resolution allows precise digital adjustment of gain, bias, or filter cutoff frequency in analog signal chains.
What SPI control interface does the MCP4131-502E/P use, and how does it interface with a 3.3 V microcontroller?
The MCP4131-502E/P uses an SPI increment/decrement command interface compatible with standard 4-wire SPI peripherals. It operates from a supply voltage compatible with 3.3 V and 5 V microcontroller I/O levels, requiring no external level shifting for most modern MCU designs.
What bandwidth does the MCP4131-502E/P support, and for which frequency ranges is it unsuitable?
The MCP4131-502E/P has a nominal bandwidth of 2 kHz, which restricts its use to low-frequency signal paths such as audio volume control or DC bias adjustment. For RF, video, or high-frequency analog signal chains above a few kHz, a higher-bandwidth digital potentiometer would be required.
Is the MCP4131-502E/P in a DIP package suitable for prototype breadboard development before moving to an SMT variant?
Yes. The MCP4131-502E/P comes in an 8-pin 0.300-inch PDIP package, which is directly breadboard-compatible. Engineers can prototype the resistance control circuit and SPI firmware on a breadboard, then migrate to the MCP4131-502E/SN SOIC-8 variant for production PCBs with minimal firmware changes.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9600 | $0.96 |
| 100+ | $0.7300 | $73.00 |
| 1000+ | $0.6900 | $690.00 |
| 5000+ | $0.6800 | $3400.00 |
| 5040+ | $0.5780 | $2913.12 |
| 7500+ | $0.5770 | $4327.50 |
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