MCP4251-103E/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4251-103E/SL is a dual-channel digital potentiometer with 10 kΩ end-to-end resistance and 257 wiper positions, controlled via SPI increment/decrement interface in a SOIC-14 package. It delivers 1 kHz bandwidth and non-volatile wiper storage for precision analog adjustment.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4251-103E/SL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8800(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
- Dual-channel 10 kΩ digital potentiometer with 257 wiper positions for fine resolution
- SPI increment/decrement control interface for simple microcontroller integration
- 1 kHz bandwidth supporting audio and low-frequency analog adjustment circuits
- SOIC-14 package with RoHS-compliant Pb-free construction
- Single-function design simplifying BOM and layout for dual-pot applications
Applications
The MCP4251-103E/SL suits programmable gain amplifier stages, automatic gain control, and calibration offset circuits in industrial and consumer electronic designs. Its dual-channel architecture allows simultaneous independent control of two analog parameters, such as volume and tone in audio equipment or gain and offset in sensor front-ends. The SPI interface enables easy microcontroller or DSP-based adjustment without mechanical trimming.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 10000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| 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 MCP4251-103E/SL provide, and what resolution does this give for a 10 kΩ potentiometer?
The MCP4251-103E/SL offers 257 wiper positions across a 10 kΩ end-to-end resistance, giving approximately 39 Ω per step. This resolution is sufficient for fine gain trimming, DC offset adjustment, and calibration tasks in 5V analog signal chains.
Which control interface does the MCP4251-103E/SL use, and how straightforward is integration with a low-cost microcontroller?
The device uses an SPI increment/decrement control interface, requiring only 3 to 4 wires (SCK, SDI, CS, and optionally SDO) to interface with virtually any microcontroller. The SPI protocol operates at standard clock rates, and the 14-pin SOIC-14 package fits standard 3.3V or 5V logic levels.
For which analog adjustment applications is the MCP4251-103E/SL a practical drop-in alternative to a mechanical trimmer potentiometer?
The MCP4251-103E/SL with its 10 kΩ resistance and 1 kHz bandwidth is a practical alternative to mechanical trimmers in programmable filter corner-frequency adjustment, audio volume control up to 1 kHz, and bias current setting circuits where remote or software-controlled tuning is required over the industrial temperature range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2400 | $1.24 |
| 25+ | $1.0300 | $25.75 |
| 100+ | $0.9500 | $95.00 |
| 1000+ | $0.8900 | $890.00 |
| 5000+ | $0.8800 | $4400.00 |
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