MCP4141-103E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4141-103E/SN is a 7-bit single-channel digital potentiometer from Microchip with a 10 kΩ end-to-end resistance, controlled via an SPI-compatible increment/decrement interface. It offers non-volatile wiper position storage and operates from a wide supply range in an 8-pin SOIC package, suitable for programmable gain, offset, and calibration circuits.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4141-103E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7140(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
- 7-bit resolution (128 wiper positions) with 10 kΩ nominal end-to-end resistance
- SPI-compatible increment/decrement control interface
- Non-volatile wiper position memory — retains setting after power cycle
- 8-pin SOIC-8 package compatible with standard SMT assembly
- Wide supply voltage operation for 3.3 V and 5.0 V system rails
- 1 kHz typical bandwidth for signal conditioning applications
Applications
The MCP4141-103E/SN is used in applications requiring software-adjustable resistance, such as programmable gain amplifiers, LCD contrast control, and audio volume adjustment in consumer electronics. It is also well-suited for calibration and trimming circuits in test equipment, sensor interfaces, and industrial control systems where mechanical potentiometers would introduce reliability issues.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.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 |
| Total Resistance-Nom | 10000Ω |
| 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 | Mainland China, 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 MCP4141-103E/SN offer, and what is its end-to-end resistance?
The MCP4141-103E/SN provides 128 wiper positions (7-bit resolution) across a 10 kΩ nominal end-to-end resistance, giving each step an equivalent resistance of approximately 78 Ω. This fine resolution is useful for precise gain or bias trimming in analog signal chains.
Does the MCP4141 retain its wiper position after power is removed, making it suitable for calibration storage?
Yes. The MCP4141-103E/SN features non-volatile wiper memory, so the last programmed resistance setting is preserved across power cycles without any external EEPROM or battery. This makes it ideal for factory calibration of sensor offsets, reference voltages, or gain stages that must survive power interruptions.
What control interface does the MCP4141-103E/SN use, and how does it differ from SPI-register-based digital potentiometers?
The MCP4141 uses an increment/decrement SPI-compatible interface rather than a direct address-write SPI register model. To move the wiper, the host sends up/down commands rather than writing an absolute value. This scheme reduces bus transactions for small adjustments but requires a position counter in firmware if absolute positioning is needed, particularly when targeting a precise resistance of 10 kΩ or less.
For a 3.3 V microcontroller design, is the MCP4141-103E/SN compatible without level-shifting?
The MCP4141 is specified for operation from 1.8 V to 5.5 V, so it is fully compatible with 3.3 V I/O logic levels from common MCU families. The 8-pin SOIC-8 package simplifies board layout, and no level-shifting circuitry is required when driving the SPI bus directly from a 3.3 V MCU.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0700 | $1.07 |
| 25+ | $0.9610 | $24.02 |
| 50+ | $0.9230 | $46.15 |
| 100+ | $0.8100 | $81.00 |
| 1000+ | $0.7900 | $790.00 |
| 5000+ | $0.7140 | $3570.00 |
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