MCP4251-103E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
MCP4251-103E/P is a dual-channel 10 kΩ SPI digital potentiometer with 257 wiper positions in a 14-pin DIP package, ideal for precision analog adjustment in audio, industrial, and sensor calibration circuits.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4251-103E/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2261(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 linear wiper positions
- SPI-compatible serial interface with INCREMENT/DECREMENT control commands
- 14-pin PDIP package for easy through-hole prototyping and production
- 1 kHz bandwidth suitable for audio and signal processing applications
- Non-volatile wiper position memory available in MCP4251 family
- RoHS-compliant (Pb-free, JESD-609 e3)
Applications
MCP4251-103E/P is widely used in audio level control, programmable gain amplifiers, and sensor calibration circuits where software-controlled resistance adjustment is required. It also suits industrial control systems for digitally tunable biasing networks and test instrumentation requiring repeatable analog settings.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-14 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.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 |
| 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 MCP4251-103E/P provide, and what end-to-end resistance does each step represent?
The MCP4251-103E/P offers 257 wiper positions across a 10 kΩ end-to-end resistance, giving a step resolution of approximately 39 Ω per increment. This fine resolution makes it suitable for precision gain and offset trimming in analog signal chains.
Can MCP4251-103E/P be driven directly from a 3.3 V microcontroller SPI bus without level shifting?
Yes. The MCP4251 family supports a supply voltage range of 1.8 V to 5.5 V, so a 3.3 V SPI bus from a microcontroller can drive the device directly without additional level-shifting circuitry, simplifying board design.
What is the typical bandwidth of the MCP4251-103E/P and how does it affect audio frequency applications?
The MCP4251-103E/P has a nominal bandwidth of 1 kHz, which limits its use to low-frequency audio and DC calibration tasks. For applications above 1 kHz, designers should consider Microchip potentiometer variants with higher bandwidth specifications.
Which package does MCP4251-103E/P use and what are the key procurement considerations?
MCP4251-103E/P is housed in a 14-pin PDIP package, which is through-hole and compatible with standard DIP sockets. The factory lead time is approximately 6 weeks, so buyers planning volume production should account for this when placing orders.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2280 | $0.23 |
| 25+ | $0.2269 | $5.67 |
| 100+ | $0.2261 | $22.61 |
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