MCP2021-500E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP2021-500E/SN is a single-channel LIN bus transceiver from Microchip Technology implementing the LIN 2.0 and SAE J2602 standards at up to 20 kbps, housed in a RoHS-compliant 8-pin SOIC package. It integrates voltage regulator, slope control, and bus fault protection for direct automotive and industrial LIN network connections from a 12 V supply.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- MCP2021-500E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9286(MOQ 100)
- 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 MCP2021-500E/SN?
- LIN 2.0 and SAE J2602 compliant single-wire transceiver at up to 20 kbps enables direct automotive body network integration without external bus conditioning
- Integrated voltage regulator and bus fault protection (short to battery, short to ground) simplify automotive LIN slave node design in 8-pin SOIC-8
- RoHS-compliant e3 lead-free finish (JESD-609 code e3) supports EU automotive directive compliance in 12 V LIN body control module applications
What is MCP2021-500E/SN used for?
The MCP2021-500E/SN is used in automotive body control modules, seat position controllers, and HVAC actuator nodes as a LIN bus physical-layer interface between the microcontroller and the single-wire LIN network. Its integrated 5 V regulator and bus protection allow direct connection to 12 V vehicle battery rails without additional voltage regulation components. Industrial motor control panels and building automation systems also use this transceiver for cost-effective single-wire serial communication over distances up to 40 meters at 20 kbps.
What are the specifications of MCP2021-500E/SN?
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 0 |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Transceivers | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | TS 16949 |
| Supply Voltage-Nom | 12V |
| Surface Mount | YES |
| Telecom IC Type | LIN TRANSCEIVER |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP2021-500E/SN datasheet?
MCP2021-500E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP2021-500E/SN?
Compatible alternatives and drop-in replacements for MCP2021-500E/SN:
Frequently Asked Questions
What LIN bus standards does the MCP2021-500E/SN comply with, and at what maximum data rate does it operate?
The MCP2021-500E/SN is fully compliant with LIN 2.0 and SAE J2602 standards, operating at data rates up to 20 kbps on a single-wire bus. This 20 kbps maximum rate covers all standard LIN automotive body network speeds of 2.4 kbps, 9.6 kbps, and 19.2 kbps used in seat, window, and mirror control systems.
How many external components are needed to build a complete LIN slave node around the MCP2021-500E/SN?
The MCP2021-500E/SN integrates a 5 V LDO voltage regulator, slope-controlled driver, and bus fault protection in its 8-pin SOIC-8 package, requiring only an external 100 nF decoupling capacitor on the regulator output and a 1 kΩ series resistor on the LIN bus pin. This reduces a complete automotive LIN slave front-end to fewer than 5 external components, cutting BOM cost and PCB area compared to discrete transceiver plus regulator solutions.
What bus fault protection does the MCP2021-500E/SN provide for automotive battery environments?
The MCP2021-500E/SN is designed to survive sustained short circuits from the LIN bus pin to the 12 V battery rail or to ground without damage, meeting automotive wiring fault requirements specified in SAE J2602. It also tolerates load dump transients up to 40 V and reverse polarity on the VS pin down to -27 V, protecting the connected microcontroller in environments where LIN harness wiring is exposed to battery switching surges.
What is the lifecycle status of the MCP2021-500E/SN, and should it be used in a new automotive ECU design starting today?
The MCP2021-500E/SN has a YTEOL value of 0, indicating it has reached end-of-life and Microchip no longer recommends it for new designs. Engineers starting new automotive LIN slave nodes today should evaluate the active Microchip MCP2025 or MCP2003B family devices, which offer the same 20 kbps LIN 2.0 compliance in SOIC-8 with long-term supply commitment and updated protection specifications for ISO 11898-compatible implementations.
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