MCP4351-103E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4351-103E/ST is a quad-channel 10 kΩ digital potentiometer with 257-position linear taper, non-volatile wiper memory, SPI interface, and 1.8 V to 5.5 V operation in a 20-pin TSSOP package.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP4351-103E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1800(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
- 4 independent channels each with 257-position linear taper and 10 kΩ end-to-end resistance
- Non-volatile wiper position memory preserves all 4 channel settings through power cycles
- 3-wire SPI-compatible serial interface for simultaneous or individual channel control
- Wide supply range 1.8 V to 5.5 V supporting both 3.3 V and 5 V embedded designs
- 20-pin TSSOP package with 1-week typical factory lead time for fast production procurement
Applications
MCP4351-103E/ST is used in audio mixing consoles, programmable filter circuits, multi-axis calibration systems, and industrial sensor conditioning where four independent digitally adjustable resistances are needed from a single SPI device. Typical designs include LCD brightness and contrast control arrays, gain-trim networks in instrumentation amplifiers, and programmable voltage dividers in test and measurement equipment.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-20 |
| Factory Lead Time | 1Week |
| YTEOL | 9 |
| Bandwidth-Nom | 1kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| 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 | 0.45mA |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 | Philippines, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many adjustment steps does each MCP4351-103E/ST channel provide, and what resistance increment does that yield per step?
Each of the 4 channels in MCP4351-103E/ST offers 257 wiper positions across a 10 kΩ end-to-end resistance, giving approximately 39 Ω per step. This fine resolution enables precise gain trimming, offset calibration, and voltage division in multi-channel analog signal conditioning circuits.
Does MCP4351-103E/ST retain all four channel settings after power is removed, and how is the non-volatile memory written?
Yes, MCP4351-103E/ST stores the wiper positions for all 4 channels in non-volatile EEPROM. Each channel's position can be individually committed to non-volatile memory via an SPI command, retaining calibration data through power cycles without external battery backup or re-initialization firmware at startup.
How quickly is MCP4351-103E/ST available for production orders, and is the TSSOP-20 footprint compatible with standard SMT lines?
MCP4351-103E/ST carries a typical factory lead time of only 1 week, which is unusually short for a specialized analog IC and benefits fast-turnaround production schedules. The 20-pin TSSOP package with 0.65 mm pitch is fully compatible with standard SMT pick-and-place and reflow assembly equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8000 | $1.80 |
| 25+ | $1.1800 | $29.50 |
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