Equivalent & Substitute Parts: PLT133/T8

Part Overview

The PLT133/T8 is a fiber optic transmitter with integrated driver manufactured by Everlight Electronics Co Ltd. This component operates at 660nm wavelength with a data rate of 16Mbps and supports supply voltages from 2.7V to 5.5V. The device is designed for digital audio applications utilizing photolink technology.

The PLT133/T8 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

PLT133/T8

Everlight Electronics Co LtdIn Stock: 1111PLT133/T8 Datasheet

Current PartRFQ

PLT237/T8WH

Everlight Electronics Co LtdIn Stock: 1143PLT237/T8WH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PLT133/T8 are identified based on the following critical parameters that determine functional compatibility:

Wavelength Matching: The substitute part must operate at 660nm to ensure optical compatibility with existing receiver components and system design specifications.

Manufacturer Consistency: The substitute part is sourced from the same manufacturer (Everlight Electronics Co Ltd) to maintain design validation and quality assurance standards.

Supply Voltage Compatibility: The substitute part must operate within a voltage range that encompasses or is compatible with the original 2.7V ~ 5.5V specification. The substitute PLT237/T8WH operates at 2.7V ~ 5V, which overlaps the lower and mid-range of the original specification.

Application Alignment: Both parts are designated for digital audio applications, confirming functional purpose alignment.

Regulatory Compliance: Both parts maintain ROHS3 compliance, ensuring environmental and regulatory consistency.

The PLT237/T8WH qualifies as a substitute based on these parameters. While the data rate is higher (25Mbps versus 16Mbps) and the supply voltage upper limit is reduced (5V versus 5.5V), these differences represent enhanced performance capability and acceptable operational constraints within the specified application domain.

Parameter Comparison

Engineering Selection Recommendations

PLT237/T8WH is the identified substitute for the obsolete PLT133/T8 based on the following engineering criteria:

Product Status: The PLT237/T8WH maintains active product status with current manufacturing and inventory availability (1092 Pcs in stock), whereas the PLT133/T8 is obsolete. This ensures long-term supply chain viability and ongoing technical support.

Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying environmental and regulatory requirements for equivalent component selection.

Optical and Functional Alignment: Identical 660nm wavelength and digital audio application designation ensure optical system compatibility and functional purpose alignment with the original design.

Voltage Operating Range: The PLT237/T8WH operates within 2.7V ~ 5V, which covers the primary operating range of the original part. Systems designed for 5.5V maximum operation must be evaluated to confirm operation within the 5V upper limit of the substitute.

Performance Enhancement: The increased data rate capability (25Mbps versus 16Mbps) of the substitute part provides performance headroom and does not introduce compatibility constraints for systems designed for 16Mbps operation.

Frequently Asked Questions (FAQ)

Q: Can the PLT237/T8WH directly replace the PLT133/T8 in existing designs?

A: The PLT237/T8WH is functionally compatible for digital audio applications requiring 660nm fiber optic transmission. The primary design consideration is the reduced maximum supply voltage (5V versus 5.5V). Systems operating at or below 5V supply voltage can implement direct substitution. Systems designed for 5.5V operation require voltage adjustment or verification that the system operates within the 2.7V ~ 5V range of the substitute part.

Q: What is the significance of the higher data rate in the substitute part?

A: The PLT237/T8WH operates at 25Mbps compared to the original 16Mbps specification. This represents enhanced performance capability. Systems designed for 16Mbps operation will function correctly with the higher-rated substitute part, as the substitute can support the original data rate requirement with additional performance margin.

Q: How do the moisture sensitivity levels differ between these parts?

A: The PLT133/T8 has MSL 1 (Unlimited), indicating no moisture sensitivity constraints. The PLT237/T8WH has MSL 5A (24 Hours), indicating moisture sensitivity requiring controlled storage and handling. Systems utilizing the substitute part must implement appropriate moisture control procedures during storage and assembly operations.

Q: Are there packaging differences between the main part and substitute?

A: The PLT237/T8WH is specified with Tube packaging. The original PLT133/T8 packaging is not specified in the provided data. Packaging differences may affect assembly processes, inventory management, and component handling procedures. Mechanical fit and PCB footprint compatibility must be verified based on detailed component datasheets.

Q: What certifications apply to both parts?

A: Both the PLT133/T8 and PLT237/T8WH maintain ROHS3 compliance. The substitute part carries additional ECCN and HTSUS classifications (ECCN: 5A991B1; HTSUS: 8517.62.0090) which may differ from the original part, potentially affecting export and regulatory documentation requirements.