HCS300T/SN Code Hopping Encoder Equivalent & Substitute Parts

Part Overview

The HCS300T/SN is a Code Hopping Encoder manufactured by Microchip Technology, designed for secure remote access and keyless entry applications. This Surface Mount device operates within the KEELOQ® series and is actively supported by the manufacturer. The HCS300T/SN is supplied in Cut Tape packaging with 1629 units currently in stock.

Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or inventory requirements while maintaining functional and electrical compatibility.

Substiute Parts

HCS300T/SN

Microchip TechnologyIn Stock: 1699HCS300T/SN Datasheet

Current PartRFQ

HCS300/SN

Microchip TechnologyIn Stock: 1408HCS300/SN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCS300T/SN is determined by the following critical parameters:

Manufacturer & Series: Both the main part and substitute must originate from Microchip Technology and belong to the KEELOQ® series to ensure functional compatibility and security protocol alignment.

Device Type & Function: The substitute must be classified as a Code Hopping Encoder to maintain application compatibility in remote secure access and keyless entry systems.

Package & Mounting: The substitute must use the 8-SOIC package format (0.154", 3.90mm Width) with Surface Mount technology to ensure PCB footprint and assembly process compatibility.

Compliance & Status: The substitute must maintain Active product status and comply with ROHS3 and REACH requirements to meet current regulatory standards.

Packaging Format: While the main part is supplied in Cut Tape and the substitute in Tube format, both are acceptable packaging variants of the same base product number (HCS300) and do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (HCS300T/SN): Select this part when Cut Tape packaging is required for automated pick-and-place assembly processes. The MSL 1 rating indicates unlimited shelf life under controlled storage conditions, providing maximum flexibility for inventory management and extended storage periods.

Substitute Selection (HCS300/SN): Select this part when Tube packaging is acceptable or preferred for manual assembly operations or when Cut Tape availability is constrained. The MSL 3 rating requires adherence to 168-hour moisture exposure limits; implement appropriate moisture control measures during storage and handling.

Compliance Assurance: Both parts maintain Active product status with identical ROHS3 and REACH compliance, ensuring regulatory requirements are met for current and future applications.

Base Product Compatibility: Both variants share the HCS300 base product number and are functionally equivalent within the KEELOQ® series, confirming electrical and protocol compatibility.

Frequently Asked Questions (FAQ)

Q: Can HCS300/SN be used as a direct replacement for HCS300T/SN in production?

A: Yes, both parts are functionally equivalent Code Hopping Encoders from Microchip Technology with identical electrical specifications, package dimensions (8-SOIC), and mounting characteristics. The primary difference is packaging format (Tube vs. Cut Tape) and moisture sensitivity level.

Q: What is the impact of different Moisture Sensitivity Levels (MSL)?

A: HCS300T/SN has MSL 1 (unlimited shelf life), while HCS300/SN has MSL 3 (168-hour limit). MSL 3 requires that the component be used within 168 hours of exposure to moisture levels above 30% relative humidity. Proper storage in dry conditions or desiccant packaging extends usable shelf life.

Q: Are the 8-SOIC packages identical between both parts?

A: Yes, both parts use the 8-SOIC package format with 0.154" width and 3.90mm body width. PCB footprints and assembly processes are identical.

Q: Do both parts support the same applications?

A: Yes, both HCS300T/SN and HCS300/SN are specified for Remote Secure Access and Keyless Entry applications within the KEELOQ® security protocol framework.

Q: Which packaging format should be selected for high-volume automated assembly?

A: Cut Tape (HCS300T/SN) is optimized for automated pick-and-place equipment. Tube packaging (HCS300/SN) is suitable for manual assembly or lower-volume operations.

Q: Are there any compliance differences between the two parts?

A: No, both parts are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory requirements.