MCP4151-103E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The MCP4151-103E/P is a single-channel SPI-controlled digital potentiometer from Microchip with 10 kΩ end-to-end resistance and 256 wiper positions, operating from 1.8 V to 5.5 V supply. It uses an increment/decrement SPI interface and is housed in an 8-pin DIP package for programmable resistance applications.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4151-103E/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9400(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP4151-103E/P?
- Single-channel digital potentiometer with 10 kΩ end-to-end resistance
- 256 wiper positions for fine-grained resistance control
- SPI increment/decrement interface for easy microcontroller integration
- 1.8 V to 5.5 V supply range covering both 3.3 V and 5 V systems
- 1 kHz bandwidth for audio and low-frequency signal control
- 8-pin PDIP package for through-hole prototyping and breadboard use
What is MCP4151-103E/P used for?
The MCP4151-103E/P is used in systems requiring digitally adjustable gain, offset, or biasing, such as programmable amplifier circuits, audio volume control, and LCD contrast adjustment. It serves as a calibration trimmer replacement in test equipment and sensor signal conditioning designs where mechanical potentiometers introduce reliability concerns. Embedded systems with SPI buses use it for real-time tuning of analog parameters without interrupting signal flow.
What are the specifications of MCP4151-103E/P?
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 1kHz |
| 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 | 10000Ω |
| ## MCP4151-103E/P Alternates Showing results | Image |
| 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 |
Where can I find the MCP4151-103E/P datasheet?
MCP4151-103E/P Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4151-103E/P?
Compatible alternatives and drop-in replacements for MCP4151-103E/P:
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Frequently Asked Questions
How many resistance steps does the MCP4151-103E/P provide, and what is its full-scale resistance?
The MCP4151-103E/P offers 256 wiper positions across a 10 kΩ end-to-end resistance, giving a step size of approximately 39 Ω per increment. This resolution is adequate for applications such as gain trimming in amplifier circuits where precise analog adjustment is needed over a 10 kΩ range.
Which microcontroller interface does the MCP4151-103E/P use to change its resistance setting?
The MCP4151-103E/P is controlled via a 3-wire SPI interface using increment and decrement commands, allowing any microcontroller with an SPI peripheral to adjust the wiper position at up to the SPI clock speed. The interface is compatible with 1.8 V to 5.5 V logic levels, making it easy to drive from 3.3 V or 5 V MCU I/O pins.
Can the MCP4151-103E/P retain its wiper setting after power is removed?
The MCP4151-103E/P is a volatile digital potentiometer and does not retain its wiper position after power is cycled. Upon power-up, the wiper returns to the mid-scale position at step 128 out of 256, corresponding to approximately 5 kΩ resistance. Applications requiring non-volatile settings should use the MCP4251 or MCP4261 series with internal EEPROM.
For which design scenarios is the 8-pin DIP package of the MCP4151-103E/P most practical?
The 8-pin PDIP package of the MCP4151-103E/P is ideal for prototyping on breadboards, educational circuit development, and low-volume through-hole PCB designs. When production volume increases or board space is limited, designers typically migrate to the SOT-23 or MSOP surface-mount variants of the MCP4151 family while retaining the same 10 kΩ, 256-step functionality.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2800 | $1.28 |
| 2+ | $0.9531 | $1.91 |
| 1000+ | $0.9500 | $950.00 |
| 5000+ | $0.9400 | $4700.00 |
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