SL23EP05SC-1T Equivalent & Substitute Parts

Part Overview

The SL23EP05SC-1T is a clock/timing buffer IC manufactured by Skyworks Solutions Inc., designed for 220MHz operation with a 1:5 input-to-output ratio in an 8-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

SL23EP05SC-1T

Skyworks Solutions Inc.In Stock: 1197SL23EP05SC-1T Datasheet

Current PartRFQ

SI53365-B-GTR

Skyworks Solutions Inc.In Stock: 969SI53365-B-GTR Datasheet

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PL123E-05HSI

Microchip TechnologyIn Stock: 1335PL123E-05HSI Datasheet

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PL123E-05SC

Microchip TechnologyIn Stock: 1920PL123E-05SC Datasheet

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PL123E-05SC-R

Microchip TechnologyIn Stock: 3563PL123E-05SC-R Datasheet

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PL123E-05SI

Microchip TechnologyIn Stock: 736PL123E-05SI Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the SL23EP05SC-1T is determined by the following critical parameters:

• Frequency capability: Maximum operating frequency of 220MHz or higher
• Input-to-output ratio: 1:5 configuration
• Package compatibility: 8-SOIC (0.154", 3.90mm Width) form factor for direct PCB replacement
• Supply voltage range: Overlap with 2.3V ~ 3.6V specification
• Output signal type: LVCMOS compatibility
• Operating temperature range: Support for 0°C ~ 70°C minimum

Substitute parts are grouped into two categories:

Group 1 - Direct Package Equivalents (8-SOIC): Parts maintaining identical 8-SOIC packaging with matching 1:5 ratio and 220MHz frequency capability. These provide pin-compatible replacement without PCB layout modification.

Group 2 - Functional Equivalents (Different Package): Parts with equivalent electrical performance but different package form factors. These require PCB redesign but maintain functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (8-SOIC Package - Direct Replacement)

The PL123E-05SC-R, PL123E-05SC, PL123E-05SI, and PL123E-05HSI from Microchip Technology are pin-compatible replacements in 8-SOIC packaging. All maintain the 1:5 ratio and 220MHz frequency specification. Selection among these variants depends on packaging requirements and operating temperature range:

• PL123E-05SC-R: Tape & Reel packaging, 0°C ~ 70°C operating range, ROHS3 compliant, MSL 1 (Unlimited)
• PL123E-05SC: Tube packaging, 0°C ~ 70°C operating range, ROHS3 compliant, MSL 1 (Unlimited)
• PL123E-05SI: Tube packaging, 0°C ~ 70°C operating range, ROHS3 compliant, MSL 3 (168 Hours)
• PL123E-05HSI: Tube packaging, -40°C ~ 85°C operating range, MSL 3 (168 Hours)

Secondary Substitute (Different Package)

The SI53365-B-GTR from Skyworks Solutions operates at 200MHz with a 1:8 ratio in 16-TSSOP packaging. This part does not maintain the original 1:5 ratio and requires PCB redesign. Use only when 1:8 output distribution is functionally acceptable and extended temperature range (-40°C ~ 85°C) is required.

Compliance Considerations

All active substitute parts carry ROHS3 compliance or equivalent environmental certifications. The Microchip PL123E series variants provide superior moisture sensitivity ratings (MSL 1 with unlimited shelf life) compared to the original part (MSL 2A with 4-week limitation).

Frequently Asked Questions (FAQ)

Q: Can PL123E-05SC-R directly replace SL23EP05SC-1T without PCB modification?

A: Yes. Both parts use 8-SOIC (0.154", 3.90mm Width) packaging with identical pin counts and configurations. The PL123E-05SC-R maintains the 1:5 ratio, 220MHz frequency, and compatible supply voltage range (2.25V ~ 3.63V overlaps with 2.3V ~ 3.6V). No PCB layout changes are required.

Q: What is the difference between PL123E-05SC and PL123E-05SC-R?

A: Both parts are electrically identical Microchip PL123E-05SC devices. The difference is packaging format: PL123E-05SC is supplied in Tube packaging, while PL123E-05SC-R is supplied in Tape & Reel (TR) format. Select based on procurement and assembly requirements.

Q: Why does SI53365-B-GTR have a different input-to-output ratio?

A: The SI53365-B-GTR is a 1:8 fanout buffer, not a 1:5 device. This part is listed as a functional alternative only when system design can accommodate eight output channels instead of five. It requires complete circuit redesign and is not a direct substitute.

Q: Are the Microchip PL123E variants suitable for extended temperature applications?

A: The PL123E-05HSI supports -40°C ~ 85°C operating range, compared to 0°C ~ 70°C for other PL123E variants. Use PL123E-05HSI for applications requiring extended low-temperature operation.

Q: What is the significance of Moisture Sensitivity Level (MSL) differences?

A: MSL ratings indicate shelf life and handling requirements. PL123E-05SC and PL123E-05SC-R have MSL 1 (Unlimited shelf life), providing superior storage stability compared to the original SL23EP05SC-1T (MSL 2A, 4-week limit). PL123E-05SI and PL123E-05HSI have MSL 3 (168-hour limit), requiring more careful handling.

Q: Is ROHS3 compliance required for my application?

A: ROHS3 compliance is mandatory for products sold in the European Union and many other markets. All Microchip PL123E variants are ROHS3 compliant. Verify compliance requirements for your specific application and region.