MCP45HV51-103E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP45HV51-103E/ST is a single-channel 10 kΩ digital potentiometer from Microchip Technology with 256 wiper positions and I2C (2-wire) serial interface in a 14-pin TSSOP package. It supports high-voltage operation and offers 5 kΩ, 10 kΩ, and 50 kΩ end-to-end resistance options in the MCP45HV51 family. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP45HV51-103E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3733(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 MCP45HV51-103E/ST?
- 256-position linear taper providing fine 39-ohm step resolution on the 10 kΩ resistor array for precise analog adjustment
- I2C 2-wire serial interface enabling simple microcontroller integration with minimal pin count
- High-voltage capable design supporting wide operating supply ranges suitable for industrial signal conditioning
What is MCP45HV51-103E/ST used for?
The MCP45HV51-103E/ST is used in programmable gain amplifier circuits, bias voltage adjustment, and closed-loop calibration systems where mechanical potentiometers are replaced by digitally controlled resistor elements. Its 256 wiper positions and 10 kΩ end-to-end resistance allow fine-grained attenuation or voltage divider control in audio, industrial, and instrumentation equipment. The I2C interface simplifies firmware integration in MCU-based designs requiring multiple adjustable resistor channels on a shared bus.
What are the specifications of MCP45HV51-103E/ST?
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 13 |
| Additional Feature | THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM |
| Bandwidth-Nom | 0.024kHz |
| Control Interface | 2-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 256 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 18V |
| Resistor Terminal Voltage-Min | -18 V |
| Screening Level | AEC-Q100; TS 16949 |
| Supply Current-Max | 0.65mA |
| Supply Voltage-Nom | 3.5V |
| Surface Mount | YES |
| Temperature Coefficient-Nom | 100ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 |
Where can I find the MCP45HV51-103E/ST datasheet?
MCP45HV51-103E/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP45HV51-103E/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP45HV51-103E/ST offer, and what resistance step does each position represent for the 10 kΩ variant?
The MCP45HV51-103E/ST provides 256 discrete wiper positions across a 10 kΩ end-to-end resistor array, giving a step resolution of approximately 39 ohms per position (10,000 Ω / 256 steps). This fine-grained resolution is suitable for precision bias voltage adjustment, programmable filter cutoff tuning, and closed-loop calibration in instrumentation designs.
What communication interface does the MCP45HV51-103E/ST use, and how does it fit into a multi-device I2C bus?
The MCP45HV51-103E/ST uses a standard 2-wire I2C serial interface, allowing it to share the SDA and SCL lines with other I2C peripherals on the same bus. The device address is selectable via address pins, enabling multiple MCP45HV51 devices to coexist on one bus. This is particularly convenient in multi-channel signal conditioning designs where several digital potentiometers must be independently controlled from a single MCU.
In which resistance values is the MCP45HV51 family available, and when would a 50 kΩ variant be chosen over the 10 kΩ version?
The MCP45HV51 family is available in 5 kΩ, 10 kΩ, and 50 kΩ end-to-end resistance options. A 50 kΩ variant would be chosen over the 10 kΩ version when driving high-impedance inputs such as op-amp non-inverting inputs or ADC voltage reference dividers, where a higher wiper impedance at each of the 256 steps still represents a negligible load. The 10 kΩ version is preferred for lower-impedance circuits where current drive and bandwidth at 24 Hz are sufficient.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4697 | $1.47 |
| 96+ | $0.3733 | $35.84 |
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