HCS301T/SN Code Hopping Encoder Equivalent & Substitute Parts

Part Overview

The HCS301T/SN is a Code Hopping Encoder IC manufactured by Microchip Technology, designed for secure remote access and keyless entry applications. This surface-mount device operates within the KEELOQ® series and is housed in an 8-SOIC package. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when specific packaging requirements necessitate alternative configurations.

Substiute Parts

HCS301T/SN

Microchip TechnologyIn Stock: 3280HCS301T/SN Datasheet

Current PartRFQ

HCS301/SN

Microchip TechnologyIn Stock: 1906HCS301/SN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCS301T/SN are identified based on strict equivalence across the following critical parameters:

Substitution Criteria:

• Identical manufacturer (Microchip Technology)
• Identical series designation (KEELOQ®)
• Identical device type (Code Hopping Encoder)
• Identical package specification (8-SOIC, 0.154", 3.90mm Width)
• Identical mounting technology (Surface Mount)
• Identical application scope (Remote Secure Access, Keyless Entry)
• Identical regulatory compliance (ROHS3, REACH Unaffected)
• Identical moisture sensitivity rating (MSL 1)

The primary distinction between the main part and substitute parts lies in packaging format: the HCS301T/SN is supplied in Cut Tape (CT) & Digi-Reel® format, while the HCS301/SN substitute is supplied in Tube format. Both configurations contain identical die and electrical characteristics, with packaging differences affecting only logistics and assembly line integration.

Parameter Comparison

Engineering Selection Recommendations

Both the HCS301T/SN and HCS301/SN are active production parts from Microchip Technology with identical electrical specifications and regulatory compliance profiles. Selection between these parts is determined solely by packaging and supply chain requirements:

HCS301T/SN (Cut Tape & Digi-Reel® Format): Suitable for high-volume automated assembly operations requiring tape-and-reel feeding systems. This format optimizes pick-and-place machine compatibility and reduces manual handling.

HCS301/SN (Tube Format): Suitable for lower-volume production runs, manual assembly operations, or applications where tube packaging aligns with existing inventory management systems.

Both parts maintain identical ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating (MSL 1), ensuring equivalent performance in remote secure access and keyless entry applications. No functional or reliability differences exist between these configurations.

Frequently Asked Questions (FAQ)

Q: Are HCS301T/SN and HCS301/SN electrically identical?

A: Yes. Both parts contain identical die, electrical characteristics, and functional specifications. The difference is packaging format only.

Q: Can I substitute HCS301/SN (Tube) for HCS301T/SN (Cut Tape & Digi-Reel®) in production?

A: Electrical substitution is direct. However, assembly line integration depends on equipment compatibility. Cut Tape & Digi-Reel® format requires tape-and-reel feeding systems, while Tube format requires manual or alternative feeding mechanisms. Verify your assembly equipment specifications before switching packaging formats.

Q: Do both parts meet the same compliance standards?

A: Yes. Both HCS301T/SN and HCS301/SN are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is the moisture sensitivity difference between these parts?

A: Both parts have identical MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

Q: Are there inventory differences between these part numbers?

A: Yes. HCS301T/SN has 3200 pieces in stock, while HCS301/SN has 1870 pieces in stock. Availability may vary based on current demand and supply cycles.

Q: Which part should I specify for a new design?

A: Specify based on your assembly process requirements. If your production line uses automated tape-and-reel feeding, specify HCS301T/SN. If manual assembly or tube-compatible equipment is used, specify HCS301/SN. Both are equally suitable for remote secure access and keyless entry applications.