MCP41HV51-503E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP41HV51-503E/ST is a single-channel, 50kΩ, 256-position SPI digital potentiometer from Microchip in a 14-pin TSSOP package. It supports high-voltage operation and provides precise programmable resistance control via a 3-wire SPI interface. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP41HV51-503E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4300(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
- 256-position resolution over 50kΩ full-scale provides 195Ω step size for fine-grained analog voltage and gain control in programmable filter designs
- High-voltage wiper operation tolerates signal voltages well above the digital supply, enabling direct control of audio and industrial analog signal paths
- 3-wire SPI interface with daisy-chain capability allows cascading multiple potentiometers on a single bus, minimizing microcontroller GPIO usage
- Non-volatile wiper position storage retains the last programmed setting through power cycles without requiring host re-initialization at startup
- 14-pin TSSOP package includes all terminal and wiper connections plus an independent shutdown pin for zero-power standby mode
Applications
The MCP41HV51-503E/ST is used in programmable gain amplifiers, electronically tunable active filters, and calibration circuits where software-controlled resistance adjustment replaces manual trimmer potentiometers. It serves in industrial process control equipment for setpoint adjustment and in audio equipment for digitally controlled volume and tone settings without mechanical wear. Its high-voltage wiper capability also makes it suitable for motor drive offset calibration and sensor bridge balancing in harsh industrial environments.
Specifications
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 14Weeks |
| YTEOL | 13 |
| Bandwidth-Nom | 0.48kHz |
| Control Interface | 3-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 | -5 V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.3mA |
| Supply Voltage-Nom | 3V |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How fine is the resistance step of the MCP41HV51-503E/ST across its 256 positions and 50kΩ range?
With 256 positions over a 50kΩ full-scale resistance, each step is approximately 195Ω. This resolution allows analog voltage division or gain adjustment with better than 0.4% relative step size, which is adequate for audio volume control, signal conditioning offsets, and programmable filter cutoff frequency tuning in typical embedded designs.
Does the MCP41HV51-503E/ST retain its wiper position when power is removed?
Yes, the device includes non-volatile memory that stores the wiper position programmed via SPI. On power-up, the wiper automatically restores to the last saved position without requiring any SPI transaction from the host microcontroller, which is critical for autonomous gain or offset calibration systems that must operate correctly from the first clock cycle.
How does the high-voltage wiper specification of MCP41HV51-503E/ST benefit industrial analog signal conditioning?
The high-voltage wiper allows the potentiometer terminals to carry analog signals significantly exceeding the 5V digital supply rail. In industrial applications where sensor signals range from 0V to 10V or ±5V, this prevents wiper latch-up or signal clipping that would occur with standard 5V-rated digital potentiometers, maintaining accurate programmable attenuation across the full industrial signal range.
How many MCP41HV51-503E/ST devices can be chained on one SPI bus, and what is the interface bandwidth?
The SPI interface supports daisy-chain operation, allowing multiple units to share a single chip-select and data line by connecting SDO of one device to SDI of the next. The interface operates up to the SPI clock speed supported by the host controller, and the 0.48kHz bandwidth specification refers to the analog -3dB bandwidth of the resistive element itself, not the digital interface speed.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4697 | $1.47 |
| 1000+ | $1.4600 | $1460.00 |
| 5000+ | $1.4300 | $7150.00 |
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