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MCP4441T-104E/ST Equivalent & Substitute Parts
Part Overview
The MCP4441T-104E/ST is a digital potentiometer manufactured by Microchip Technology, classified as a Data Acquisition component. This device features a 100kΩ resistance network with 4 independent circuits, 129 taps, and I2C interface control. The part is actively produced and widely used in audio volume control, instrumentation calibration, and programmable gain applications. Substitute parts are identified when packaging or supplier configurations differ while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance (Ohms) | 100k |
| Number of Circuits | 4 |
| Number of Taps | 129 |
| Interface | I2C |
| Memory Type | Non-Volatile |
| Voltage Supply Range | 1.8V ~ 5.5V |
| Taper | Linear |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | -40°C ~ 125°C |
| Tolerance | ±20% |
| Temperature Coefficient (Typ) | 150ppm/°C |
| Resistance - Wiper (Ohms) (Typ) | 75 |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MCP4441T-104E/ST is determined by strict equivalence across the following critical parameters:
- Resistance value: 100kΩ
- Circuit configuration: 4 independent circuits
- Tap resolution: 129 taps
- Interface protocol: I2C
- Non-volatile memory capability
- Supply voltage range: 1.8V ~ 5.5V
- Package type: 20-TSSOP
- Operating temperature range: -40°C ~ 125°C
- Tolerance: ±20%
- Temperature coefficient: 150ppm/°C
The MCP4441-104E/ST qualifies as a direct substitute. Both parts share identical electrical specifications, mechanical dimensions, and functional characteristics. The difference between these part numbers reflects packaging configuration only: the main part (MCP4441T-104E/ST) is supplied in Tape & Reel format, while the substitute (MCP4441-104E/ST) is supplied in Tube packaging. Both are manufactured by Microchip Technology and maintain Active product status.
Parameter Comparison
| Parameter | MCP4441T-104E/ST (Main) | MCP4441-104E/ST (Substitute) |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Resistance (Ohms) | 100k | 100k |
| Number of Circuits | 4 | 4 |
| Number of Taps | 129 | 129 |
| Interface | I2C | I2C |
| Memory Type | Non-Volatile | Non-Volatile |
| Voltage - Supply | 1.8V ~ 5.5V | 1.8V ~ 5.5V |
| Taper | Linear | Linear |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Tolerance | ±20% | ±20% |
| Temperature Coefficient (Typ) | 150ppm/°C | 150ppm/°C |
| Resistance - Wiper (Ohms) (Typ) | 75 | 75 |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Packaging Format | Tape & Reel (TR) | Tube |
Engineering Selection Recommendations
Both the MCP4441T-104E/ST and MCP4441-104E/ST are Active products manufactured by Microchip Technology. Selection between these parts should be based on procurement and assembly requirements:
-
Tape & Reel format (MCP4441T-104E/ST): Suitable for high-volume automated pick-and-place assembly operations. Provides continuous reel configuration for efficient machine handling.
-
Tube format (MCP4441-104E/ST): Suitable for lower-volume production, manual assembly, or component inventory management where individual part access is preferred.
Both parts maintain identical ROHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 (Unlimited). No functional or electrical differences exist between these configurations. Selection is determined by manufacturing process requirements and supply chain logistics, not by technical performance criteria.
Frequently Asked Questions (FAQ)
Q: Are MCP4441T-104E/ST and MCP4441-104E/ST electrically identical?
A: Yes. Both parts are manufactured by Microchip Technology and share identical electrical specifications, including 100kΩ resistance, 4 circuits, 129 taps, I2C interface, and operating parameters. The only difference is packaging format: Tape & Reel versus Tube.
Q: Can I use MCP4441-104E/ST (Tube) in place of MCP4441T-104E/ST (Tape & Reel)?
A: Yes, from an electrical and functional standpoint. However, assembly compatibility depends on your production equipment. Automated pick-and-place systems typically require Tape & Reel format, while manual assembly or lower-volume production can accommodate Tube packaging.
Q: What does the "T" in MCP4441T-104E/ST indicate?
A: The "T" designates Tape & Reel packaging format. The absence of "T" in MCP4441-104E/ST indicates Tube packaging. All other specifications remain identical.
Q: Are both parts RoHS compliant?
A: Yes. Both MCP4441T-104E/ST and MCP4441-104E/ST are ROHS3 compliant and REACH unaffected.
Q: What is the moisture sensitivity level for these parts?
A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
Q: Can these parts operate across the full industrial temperature range?
A: Yes. Both parts operate from -40°C to 125°C, covering industrial and extended temperature applications.
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