OPF350A Fiber Optic Transmitter - Equivalent & Substitute Parts

Part Overview

The OPF350A is a fiber optic transmitter operating at 850nm wavelength, designed for connector-less applications with a forward voltage of 1.8V and maximum forward current of 100mA. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The OPF350A maintains ROHS3 compliance and is REACH unaffected, with 941 units currently available in inventory.

Substiute Parts

OPF350A

TT Electronics/Optek TechnologyIn Stock: 967OPF350A Datasheet

Current PartRFQ

OPF370A

TT Electronics/Optek TechnologyIn Stock: 1287OPF370A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The OPF370A qualifies as a manufacturer-recommended substitute based on the following alignment of critical electrical parameters:

Both parts operate at 850nm wavelength, establishing core functional compatibility for fiber optic transmission applications. The maximum DC forward current specification remains constant at 100mA across both components. The reverse voltage rating of 1V is identical, ensuring equivalent reverse bias protection characteristics.

The OPF370A differs in forward voltage specification (2V typical versus 1.8V) and spectral bandwidth (35nm versus 50nm). These differences represent acceptable variations within the 850nm transmitter category and do not preclude substitution in applications where the OPF350A is specified. The OPF370A carries active product status with improved moisture sensitivity rating (MSL 1 - Unlimited) compared to the obsolete OPF350A.

Parameter Comparison

Engineering Selection Recommendations

The OPF370A is the manufacturer-designated substitute for the obsolete OPF350A. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component selection.

Circuit designs currently specified for OPF350A can transition to OPF370A with consideration of the 0.2V forward voltage increase. The narrower spectral bandwidth of OPF370A (35nm versus 50nm) represents a refinement in wavelength characteristics suitable for 850nm fiber optic transmission applications.

The OPF370A's active product status ensures continued availability and manufacturing support, addressing the obsolescence constraint of the OPF350A. The improved moisture sensitivity rating (MSL 1 - Unlimited) of OPF370A provides enhanced reliability for storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can OPF370A directly replace OPF350A in existing designs?

A: The OPF370A is the manufacturer-recommended substitute. Both components share identical wavelength (850nm), maximum forward current (100mA), and reverse voltage (1V) specifications. Circuit designs must accommodate the 0.2V increase in typical forward voltage.

Q: What is the significance of the spectral bandwidth difference?

A: OPF350A specifies 50nm spectral bandwidth while OPF370A specifies 35nm. Both operate at 850nm wavelength. The narrower bandwidth of OPF370A represents improved wavelength definition without affecting core transmitter functionality.

Q: Why is OPF350A classified as obsolete?

A: OPF350A carries obsolete product status, indicating discontinued manufacturing. OPF370A, as the active substitute, is the recommended component for new designs and ongoing system support.

Q: Are there compliance differences between these components?

A: Both OPF350A and OPF370A maintain ROHS3 compliance and REACH unaffected status. No compliance barriers exist for substitution.

Q: What packaging considerations apply to OPF370A?

A: OPF370A is supplied in bulk packaging. OPF350A packaging specification is not provided in the technical data. Confirm packaging requirements for your application.

Q: How does the moisture sensitivity rating affect component selection?

A: OPF370A carries MSL 1 (Unlimited) rating, indicating superior moisture resistance compared to OPF350A (MSL not applicable). This provides enhanced reliability for storage and handling in various environmental conditions.