MCP4251-104E/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4251-104E/SL is a dual-channel SPI-controlled digital potentiometer from Microchip with 256 resistor taps and a 100 kOhm end-to-end resistance. It supports increment/decrement control via SPI for precise programmable resistance adjustment. Suitable for audio gain control, sensor calibration, and programmable filtering circuits in industrial and consumer applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4251-104E/SL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8290(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 digital potentiometer with 256 wiper positions
- 100 kOhm end-to-end resistance selectable per channel
- SPI interface with increment/decrement control
- Non-volatile memory stores wiper position on power-down
- SOIC-14 package with low 0.1 kHz bandwidth for low-noise designs
Applications
The MCP4251-104E/SL is used in audio equipment for programmable gain and volume control, with 256 discrete steps offering fine resolution across the 100 kOhm resistance range. It suits sensor conditioning circuits where offset and gain need dynamic calibration under microcontroller supervision via SPI. Industrial automation systems use it for programmable filter cutoff and reference voltage adjustment without mechanical potentiometers.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.1kHz |
| 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 | 100000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| 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 MCP4251-104E/SL provide, and what is the end-to-end resistance value?
The MCP4251-104E/SL provides 256 discrete wiper positions across a 100 kOhm end-to-end resistance, giving approximately 390 Ohm resolution per step. This fine granularity makes it suitable for precision gain or offset adjustment in analog signal chains.
Can the MCP4251-104E/SL retain wiper position after a power cycle?
Yes, the MCP4251-104E/SL includes non-volatile memory that stores the last programmed wiper position for each of its 2 channels. On the next power-up, both wipers restore to the saved positions without any re-initialization from the host microcontroller, which is critical for 100 kOhm calibration circuits.
For a PCB with limited board space, how does the SOIC-14 package of MCP4251-104E/SL compare to discrete potentiometers?
The SOIC-14 package occupies roughly 8.7 mm × 3.9 mm of PCB area and eliminates mechanical wear, replacing two discrete 100 kOhm potentiometers in the same space. With a 7-week lead time from Microchip and RoHS-compliant construction, it streamlines procurement and assembly compared to dual trimmer designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2400 | $1.24 |
| 100+ | $0.9500 | $95.00 |
| 1000+ | $0.8900 | $890.00 |
| 5000+ | $0.8800 | $4400.00 |
| 5016+ | $0.8370 | $4198.39 |
| 7524+ | $0.8290 | $6237.40 |
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