OPF342A Equivalent & Substitute Parts

Part Overview

The OPF342A is a fiber optic transmitter operating at 850nm wavelength, manufactured by TT Electronics/Optek Technology. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and component procurement. The OPF342A features an ST connector interface and is rated for 2V forward voltage with a maximum forward current of 100 mA. Due to its obsolete status, alternative components with compatible electrical and mechanical specifications are required for new designs and system maintenance.

Substiute Parts

OPF342A

TT Electronics/Optek TechnologyIn Stock: 1034OPF342A Datasheet

Current PartRFQ

OPF694-2

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPF342A is determined by matching the following critical parameters: wavelength (850nm), spectral bandwidth (35nm), maximum forward current (100 mA), reverse voltage rating (1 V), and connector type (ST). The OPF694-2 qualifies as a direct substitute based on these specifications. Both components maintain identical wavelength, spectral bandwidth, current rating, reverse voltage rating, and connector interface. Forward voltage specifications differ slightly (OPF342A: 2V typical; OPF694-2: 2.1V maximum), which remains within acceptable operating tolerances for fiber optic transmitter applications. Both parts maintain equivalent RoHS3 compliance and MSL ratings.

Parameter Comparison

Engineering Selection Recommendations

The OPF694-2 is the qualified substitute for the OPF342A. This substitution is supported by matching electrical specifications across wavelength, current rating, reverse voltage, and connector interface. The OPF694-2 maintains active product status, ensuring continued availability and manufacturer support. Both components carry ROHS3 compliance and identical MSL ratings, confirming environmental and regulatory compatibility. The forward voltage differential (0.1V maximum) between the two parts does not impact functional compatibility in standard fiber optic transmitter applications. Selection of the OPF694-2 is appropriate for replacement and new design applications requiring 850nm fiber optic transmission at 100 mA maximum current.

Frequently Asked Questions (FAQ)

Q: Can the OPF694-2 directly replace the OPF342A in existing designs? A: Yes. The OPF694-2 matches all critical electrical parameters including wavelength (850nm), spectral bandwidth (35nm), maximum forward current (100 mA), reverse voltage rating (1 V), and ST connector interface. The forward voltage specification of the OPF694-2 (2.1V maximum) is compatible with circuits designed for the OPF342A (2V typical).

Q: What is the primary reason for substitution? A: The OPF342A is classified as obsolete. The OPF694-2 is an active product from the same manufacturer with equivalent electrical and mechanical specifications, ensuring long-term component availability.

Q: Are there packaging differences between these parts? A: The OPF342A is specified in TO46 packaging, while the OPF694-2 is supplied in Tray packaging. Both maintain identical connector type (ST) and functional interface.

Q: Do both parts meet the same compliance standards? A: Yes. Both the OPF342A and OPF694-2 are ROHS3 compliant, REACH unaffected, and carry MSL rating of 1 (Unlimited). Both are classified under ECCN EAR99 and HTSUS 8541.41.0000.

Q: What wavelength do these components operate at? A: Both the OPF342A and OPF694-2 operate at 850nm wavelength with a spectral bandwidth of 35nm, standard for short-wavelength fiber optic transmission applications.