SLRC40001T/OFE,112 Equivalent & Substitute Parts

Part Overview

The SLRC40001T/OFE,112 is an RFID Reader IC operating at 14.66MHz with ISO 15693 compliance, designed for surface mount applications in 32-SOIC packaging. This component supports SPI interface communication across a 3V to 5.5V supply range and operates reliably from -25°C to 85°C.

The SLRC40001T/OFE,112 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term product maintenance and production requirements.

Substiute Parts

SLRC40001T/OFE,112

NXP USA Inc.In Stock: 752SLRC40001T/OFE,112 Datasheet

Current PartRFQ

SLRC61003HNE

NXP SemiconductorsIn Stock: 19863SLRC61003HNE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLRC40001T/OFE,112 is evaluated based on the following critical parameters:

• Frequency Compatibility: Both reader and transponder devices operating at 14.66MHz or higher within the ISO 15693 standard band
• Standards Compliance: ISO 15693 support as the primary standard, with additional standards (EPC, ISO 18000, NFC) providing extended functionality
• Interface Protocol: SPI interface availability for digital communication
• Supply Voltage Range: 3V to 5.5V operating range
• Operating Temperature Range: -25°C to 85°C minimum requirement
• Mounting Type: Surface mount technology
• RoHS Compliance: ROHS3 Compliant status for regulatory alignment

The SLRC61003HNE is identified as a manufacturer-recommended substitute. While it functions as an RFID Transponder rather than a Reader, it maintains core compatibility through shared frequency band support, identical supply voltage range, matching operating temperature specifications, and equivalent RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The SLRC61003HNE is designated as the manufacturer-recommended substitute for the obsolete SLRC40001T/OFE,112. Selection of this substitute is supported by the following factors:

• Product Status: The SLRC61003HNE maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete main part.
• Regulatory Compliance: Both components maintain ROHS3 Compliant status and REACH Unaffected designation, satisfying equivalent environmental and regulatory requirements.
• Electrical Compatibility: Identical supply voltage range (3V ~ 5.5V) and operating temperature range (-25°C ~ 85°C) ensure functional compatibility in existing circuit designs.
• Standards Support: The SLRC61003HNE extends standards support beyond ISO 15693 to include EPC, ISO 18000, and NFC, providing enhanced functionality while maintaining backward compatibility.
• Interface Flexibility: The substitute offers multiple interface options (I2C, SPI, UART) including the SPI protocol required by the original design.

Design integration requires evaluation of package differences (32-SOIC to 32-VFQFN) and functional role transition (Reader to Transponder) within the specific application context.

Frequently Asked Questions (FAQ)

Q: Why is the SLRC40001T/OFE,112 classified as obsolete?

A: The SLRC40001T/OFE,112 has reached end-of-life status in NXP's product portfolio. Obsolete classification indicates that the manufacturer no longer produces this component, making substitute identification essential for ongoing production and maintenance.

Q: Can the SLRC61003HNE directly replace the SLRC40001T/OFE,112 in existing designs?

A: The SLRC61003HNE shares critical electrical parameters (supply voltage, operating temperature, standards compliance) with the main part. However, functional differences exist: the main part is an RFID Reader, while the substitute is an RFID Transponder. Additionally, package geometry differs (32-SOIC versus 32-VFQFN). Circuit redesign and functional validation are required for integration.

Q: What are the key differences in packaging between these components?

A: The SLRC40001T/OFE,112 uses 32-SOIC (0.295", 7.50mm Width) packaging, while the SLRC61003HNE uses 32-VFQFN Exposed Pad (5x5mm) packaging. These packages have different footprints, pin configurations, and thermal characteristics. PCB layout modification is necessary for substitution.

Q: Are both components RoHS compliant?

A: Yes. Both the SLRC40001T/OFE,112 and SLRC61003HNE are ROHS3 Compliant and REACH Unaffected, meeting equivalent environmental and regulatory standards.

Q: What interface protocols does the SLRC61003HNE support?

A: The SLRC61003HNE supports I2C, SPI, and UART interfaces. The original SLRC40001T/OFE,112 uses SPI. The substitute's SPI capability maintains protocol compatibility, though additional interface options provide design flexibility.

Q: How do the frequency specifications compare?

A: The SLRC40001T/OFE,112 operates at 14.66MHz, while the SLRC61003HNE operates at 27.12MHz. Both frequencies fall within the ISO 15693 standard band. The higher frequency of the substitute may affect system performance characteristics and requires application-specific evaluation.

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

A: The SLRC40001T/OFE,112 has MSL 1 (Unlimited shelf life), while the SLRC61003HNE has MSL 2 (1 Year shelf life). This affects storage and handling requirements. The substitute requires more stringent moisture control during storage and assembly.