MCP4541-502E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
The Microchip MCP4541-502E/MS is a single-channel I2C digital potentiometer with 128 steps, 5 kΩ end-to-end resistance, and non-volatile memory to retain the wiper position across power cycles. It operates with a 2 kHz bandwidth and increment/decrement control in an 8-pin MSOP package. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4541-502E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7700(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 MCP4541-502E/MS?
- 128-step 5 kΩ digital potentiometer with non-volatile memory retains wiper position across power cycles without host software reload
- I2C increment/decrement control interface at up to 400 kHz for easy integration with microcontrollers and single-board computers
- 8-pin MSOP package with Pb-free construction enables compact PCB placement alongside analog signal conditioning circuits
What is MCP4541-502E/MS used for?
The MCP4541-502E/MS is used in analog signal conditioning circuits requiring software-adjustable gain, offset, or volume control that must survive power interruptions without losing their setting. Its 128-step 5 kΩ potentiometer with non-volatile wiper retention makes it ideal for audio amplifiers, sensor calibration circuits, and LCD contrast adjustment in consumer and industrial equipment. The I2C interface allows multiple devices to share a 2-wire bus, reducing PCB routing complexity in multi-channel trimming applications.
What are the specifications of MCP4541-502E/MS?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5.5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 5000Ω |
| 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 MCP4541-502E/MS datasheet?
MCP4541-502E/MS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4541-502E/MS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the non-volatile memory in the MCP4541-502E/MS benefit designs that lose power unexpectedly?
The MCP4541-502E/MS stores the 128-step wiper position in non-volatile memory, so the potentiometer resumes at its last programmed resistance value after a power cycle without any host MCU intervention. This eliminates the need for a separate EEPROM and a software re-initialisation routine, saving BOM cost and reducing firmware complexity in audio, lighting, and calibration applications.
What resistance resolution does the MCP4541-502E/MS provide across its 5 kΩ range, and how does that affect precision tuning?
With 128 steps across a 5 kΩ end-to-end resistance, each step represents approximately 39 Ω of resolution. This granularity is sufficient for gain trimming in audio amplifiers, LCD contrast tuning, and sensor bridge balancing where coarse resistance adjustments in the tens-of-ohms range meet design tolerance requirements.
Which I2C bus speed does the MCP4541-502E/MS support, and can multiple devices share the same bus?
The MCP4541-502E/MS is compatible with standard I2C speeds up to 400 kHz (Fast Mode), and its address pins allow up to 2 devices to reside on the same bus. The 2-wire interface also works at the standard 100 kHz rate, making it straightforward to share the bus with sensors, EEPROMs, and display controllers in a typical embedded system.
How compact is the MCP4541-502E/MS MSOP package for space-constrained PCB designs?
The 8-pin MSOP package measures approximately 3 mm × 3 mm, occupying less than 10 mm² of PCB area. This footprint is roughly half the size of an equivalent SOIC-8 package, making the MCP4541-502E/MS a strong choice for handheld instruments, wearable devices, and densely populated analog front-end boards where board area is at a premium.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0700 | $1.07 |
| 100+ | $0.8100 | $81.00 |
| 1000+ | $0.7900 | $790.00 |
| 5000+ | $0.7700 | $3850.00 |
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