MCP4151-503E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip MCP4151-503E/P is a single-channel 50 kΩ digital potentiometer with 257 wiper positions and a linear taper, controlled via an SPI-compatible increment/decrement interface in an 8-pin PDIP package. It replaces mechanical potentiometers in automated calibration, gain adjustment, and LCD bias tuning circuits. The device is RoHS-compliant and available in a through-hole DIP footprint for easy prototyping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4151-503E/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8500(MOQ 25)
- 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 50 kΩ end-to-end resistance with 257 linear wiper positions for fine-grained analog adjustment
- SPI-compatible increment/decrement control interface for direct connection to microcontroller SPI buses
- Non-volatile wiper position storage option retains last setting through power cycling
- 8-pin PDIP through-hole package enabling straightforward breadboard and DIP socket prototyping
- RoHS-compliant Pb-free construction (JESD-609 e3) for consumer and industrial production
- 0.2 kHz bandwidth nominal suitable for low-frequency audio and DC bias adjustment applications
Applications
The MCP4151-503E/P is used in automated calibration systems where a microcontroller must trim analog reference voltages, op-amp gains, or sensor biases without manual adjustment. Audio equipment and signal conditioning boards use it to digitally control volume or gain in 50 kΩ networks under SPI command. LCD contrast control, programmable filter cutoff, and DAC output trimming are additional common uses in consumer electronics and instrumentation.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.2kHz |
| 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 | 257 |
| 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 | 50000Ω |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does the MCP4151-503E/P provide and what is the resolution per step at 50 kΩ full scale?
The MCP4151-503E/P has 257 wiper positions covering a 50 kΩ end-to-end resistance, giving approximately 195 Ω per step. This resolution suits DC bias trimming and analog gain adjustment where fine control is needed without the mechanical wear of a traditional trimpot.
Which microcontroller SPI buses are compatible with the MCP4151-503E/P control interface?
The MCP4151-503E/P uses an SPI-compatible increment/decrement serial interface that is compatible with standard 3.3 V and 5 V SPI masters. It operates correctly with microcontrollers such as PIC, AVR, STM32, and ESP32 series when configured for SPI Mode 0,0 or 1,1 with appropriate chip select timing.
Can the MCP4151-503E/P replace a mechanical 50 kΩ trimpot for production-line calibration of analog sensor circuits?
Yes. Replacing a mechanical 50 kΩ trimpot with the MCP4151-503E/P allows automated calibration via SPI commands during manufacturing. The 257-position resolution enables sub-200 Ω increments, and the non-volatile wiper memory retains the calibration setting after power removal, eliminating re-calibration on each power-up.
Is the MCP4151-503E/P available in a surface-mount alternative to the 8-pin PDIP for high-volume SMT board assembly?
Microchip offers the MCP4151 family in multiple package options beyond the 8-pin PDIP, including SOIC-8 and TSSOP-8 variants, such as MCP4151-503E/SN. For high-volume SMT production, designers can migrate to the SOIC-8 or MSOP-8 version while preserving identical electrical performance and SPI interface pinout.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $1.1700 | $29.25 |
| 50+ | $1.1200 | $56.00 |
| 100+ | $0.9700 | $97.00 |
| 1000+ | $0.9500 | $950.00 |
| 5000+ | $0.9400 | $4700.00 |
| 5040+ | $0.8500 | $4284.00 |
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