HCS201/SN Code Hopping Encoder Equivalent & Substitute Parts

Part Overview

The HCS201/SN is a Code Hopping Encoder manufactured by Microchip Technology, designed for secure remote access and keyless entry applications. This surface-mount integrated circuit operates within the KEELOQ® series and is housed in an 8-SOIC package. The device is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles. Substitute parts must maintain identical electrical specifications, mechanical compatibility, and functional performance characteristics.

Substiute Parts

HCS201/SN

Microchip TechnologyIn Stock: 3440HCS201/SN Datasheet

Current PartRFQ

HCS201-I/SN

Microchip TechnologyIn Stock: 18473HCS201-I/SN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCS201/SN is determined by strict adherence to the following parameters:

Critical 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)
• Matching RoHS compliance status (ROHS3 Compliant)
• Matching moisture sensitivity level (MSL 1 - Unlimited)
• Active product status

The HCS201-I/SN qualifies as a direct substitute based on complete alignment across all specified parameters. Both devices share the same base product number (HCS201), identical packaging, and equivalent environmental compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

HCS201-I/SN is a direct equivalent substitute for HCS201/SN. Selection between these parts should be based on:

1. Inventory Availability: HCS201-I/SN maintains higher stock levels (18,374 pcs) compared to HCS201/SN (3,392 pcs), providing improved supply chain reliability.

2. Compliance Certification: Both parts maintain identical RoHS3 compliance and REACH unaffected status, ensuring regulatory requirements are met in either configuration.

3. Environmental Specifications: Matching MSL 1 rating confirms both parts are suitable for unlimited moisture exposure conditions without special handling requirements.

4. Production Status: Both devices are in active production, ensuring long-term availability and consistent manufacturing quality standards.

5. Package Compatibility: Identical 8-SOIC package specifications guarantee direct PCB layout compatibility without design modifications.

Frequently Asked Questions (FAQ)

Q: Can HCS201-I/SN be used as a direct replacement for HCS201/SN on existing PCBs?

A: Yes. Both parts share identical package specifications (8-SOIC, 0.154", 3.90mm Width), mounting type (Surface Mount), and electrical series designation (KEELOQ®). No PCB layout modifications are required.

Q: Are there any compliance differences between HCS201/SN and HCS201-I/SN?

A: No. Both parts maintain identical RoHS3 compliance status, REACH unaffected designation, and ECCN classification (EAR99). Environmental and regulatory requirements are equivalent.

Q: What is the significance of the base product number HCS201?

A: The base product number HCS201 identifies the core device architecture. Both HCS201/SN and HCS201-I/SN share this base designation, confirming functional equivalence within the KEELOQ® encoder family.

Q: Does moisture sensitivity level affect substitution eligibility?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating identical moisture handling requirements and storage conditions. This parameter must match for substitution approval.

Q: Are there inventory considerations when selecting between these substitutes?

A: HCS201-I/SN has significantly higher inventory availability (18,374 pcs versus 3,392 pcs). For supply chain planning, HCS201-I/SN may provide better lead time performance and stock continuity.

Q: What applications are supported by both substitute parts?

A: Both HCS201/SN and HCS201-I/SN are specified for Remote Secure Access and Keyless Entry applications. Functional performance in these applications is equivalent.