RFID Reader Module 113990041 Equivalent & Substitute Parts

Part Overview

The Seeed Technology Co., Ltd model 113990041 is a 125kHz RFID Reader/Writer module designed for read/write operations in radio frequency identification applications. This component features TTL interface connectivity and operates at the standard 125kHz frequency band for proximity card and tag applications.

The 113990041 has reached obsolete product status. Identifying functionally equivalent substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this module.

Substiute Parts

113990041

Seeed Technology Co., LtdIn Stock: 1030113990041 Datasheet

Current PartRFQ

113990042

Seeed Technology Co., LtdIn Stock: 1099113990042 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 113990041 is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

• Frequency: 125kHz (mandatory match)
• Type: Read/Write capability (mandatory match)
• Interface: TTL (mandatory match)
• Package / Case: Module form factor (mandatory match)
• Manufacturer: Seeed Technology Co., Ltd (same manufacturer source)
• Moisture Sensitivity Level: 1 (Unlimited) (mandatory match)

The substitute part 113990042 satisfies all critical parameters required for functional equivalence. Both components operate at identical frequency, support identical read/write functionality, utilize TTL interface protocol, and maintain the same moisture sensitivity classification. The primary distinction between these parts is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 113990042

The 113990042 is the direct functional equivalent for the obsolete 113990041. Selection of the 113990042 is supported by:

• Product Status Alignment: The 113990042 maintains active product status, ensuring ongoing manufacturer support, availability, and supply chain continuity.
• Compliance Certification: The 113990042 carries RoHS Compliant certification, meeting current environmental and regulatory requirements for electronic components in regulated markets.
• Parameter Equivalence: All critical electrical and mechanical parameters match the original 113990041 specification, ensuring drop-in compatibility within existing circuit designs.
• Regulatory Classification: Both components share identical ECCN (EAR99) and HTSUS (8473.30.1180) classifications, maintaining consistent export and tariff treatment.

For applications requiring the 125kHz RFID read/write functionality with TTL interface, the 113990042 provides complete functional replacement without design modification.

Frequently Asked Questions (FAQ)

Q: Can the 113990042 directly replace the 113990041 in existing designs?

A: Yes. The 113990042 matches all critical parameters of the 113990041: 125kHz frequency, read/write capability, TTL interface, and module package form factor. No circuit design changes are required for substitution.

Q: What is the primary difference between these two parts?

A: The 113990041 is obsolete, while the 113990042 is active. The 113990042 also specifies RoHS Compliant status and uses bulk packaging, whereas the 113990041 packaging is not specified.

Q: Are there any compatibility concerns with TTL interface connections?

A: No. Both components utilize TTL interface protocol. Existing TTL signal connections and logic level requirements remain unchanged between the two parts.

Q: Does the packaging difference (Standard vs. Bulk) affect electrical performance?

A: No. Packaging configuration does not affect electrical characteristics, frequency response, or read/write functionality. Packaging differences relate only to order quantity and delivery format.

Q: Is the RoHS Compliant certification of the 113990042 important for my application?

A: RoHS compliance is required for products sold in regulated markets, particularly the European Union. If your application or end market requires RoHS certification, the 113990042 meets this requirement while the 113990041 status is unspecified.

Q: What is the Moisture Sensitivity Level (MSL) 1 classification?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This applies to both the 113990041 and 113990042.

Q: Can I use these modules interchangeably in production?

A: Yes. The 113990042 is a direct substitute for the 113990041. Both components are manufactured by Seeed Technology Co., Ltd and share identical functional specifications for 125kHz RFID read/write operations.