OPF347A Equivalent & Substitute Parts

Part Overview

The OPF347A is a fiber optic transmitter operating at 850nm wavelength, manufactured by TT Electronics/Optek Technology. This component features an ST connector interface and is designed for 2V forward voltage operation with a maximum forward current of 100mA. The OPF347A is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

OPF347A

TT Electronics/Optek TechnologyIn Stock: 763OPF347A Datasheet

Current PartRFQ

OPF694-2

TT Electronics/Optek TechnologyIn Stock: 1156OPF694-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPF347A is determined by the following critical parameters:

• Wavelength: 850nm (must match exactly)
• Spectral Bandwidth: 35nm (must match exactly)
• Maximum Forward Current: 100mA (must match or exceed)
• Forward Voltage: Must be compatible with existing circuit design (2V nominal)
• Connector Type: ST (must match for mechanical compatibility)
• Regulatory Compliance: ROHS3 and REACH status must be maintained

The OPF694-2 meets all substitution criteria as a direct equivalent for the obsolete OPF347A, with identical wavelength, spectral bandwidth, current rating, and connector specifications.

Parameter Comparison

Engineering Selection Recommendations

The OPF694-2 is the direct substitute for the obsolete OPF347A. Both components maintain identical electrical specifications for wavelength (850nm), spectral bandwidth (35nm), maximum forward current (100mA), reverse voltage (1V), and connector type (ST). The OPF694-2 forward voltage maximum of 2.1V is compatible with circuits designed for the OPF347A's 2V nominal specification.

The OPF694-2 holds active product status with full ROHS3 compliance and REACH unaffected designation, ensuring regulatory compliance for new designs and system replacements. Both components share identical moisture sensitivity classification (MSL 1 - Unlimited), eliminating handling and storage requirement changes during substitution.

Frequently Asked Questions (FAQ)

Q: Can the OPF694-2 directly replace the OPF347A in existing designs?

A: Yes. The OPF694-2 provides direct substitution with matching wavelength, spectral bandwidth, current rating, reverse voltage, and ST connector specifications. The forward voltage maximum of 2.1V is compatible with OPF347A circuit designs operating at 2V nominal.

Q: What is the primary reason for substituting the OPF347A?

A: The OPF347A is classified as obsolete. The OPF694-2 is an active product from the same manufacturer, ensuring continued availability and supply chain reliability.

Q: Are there packaging differences between these components?

A: The OPF347A uses TO46 packaging while the OPF694-2 uses TO18 packaging in tray format. Both maintain identical electrical performance and ST connector interface.

Q: Do both components meet current regulatory requirements?

A: Yes. Both the OPF347A and OPF694-2 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Is the forward voltage difference between 2V and 2.1V significant for substitution?

A: No. The OPF694-2 maximum forward voltage of 2.1V is within acceptable tolerance for circuits designed for the OPF347A's 2V nominal specification. Both components operate within the same electrical parameters for this application.