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OPF694-1 Equivalent & Substitute Parts
Part Overview
The OPF694-1 is a fiber optic transmitter operating at 850nm wavelength with ST connector interface, manufactured by TT Electronics/Optek Technology. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing system support and new designs. The part delivers 100 mA maximum forward current at 2.1V maximum forward voltage, designed for TO18 package configuration.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Wavelength | 850nm |
| Spectral Bandwidth | 35nm |
| Voltage - Forward (Vf) (Max) | 2.1V |
| Current - DC Forward (If) (Max) | 100 mA |
| Voltage - DC Reverse (Vr) (Max) | 1V |
| Connector Type | ST |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the OPF694-1 are identified based on the following critical parameters: wavelength, maximum forward current, connector type, and regulatory compliance status. Two distinct substitution categories exist:
Category 1 - Direct Equivalent (Same Wavelength): OPF694-2 maintains identical electrical specifications (850nm wavelength, 2.1V maximum forward voltage, 100 mA maximum forward current) and connector type (ST). This part represents the active production equivalent from the same manufacturer series.
Category 2 - Wavelength Variant (Different Wavelength): HFBR-1414TZ operates at 820nm wavelength with reduced forward voltage (1.7V) and increased reverse voltage rating (1.8V). While maintaining the same maximum forward current (100 mA) and ST connector interface, the wavelength difference represents a functional variation requiring system-level compatibility assessment.
Parameter Comparison
| Parameter | OPF694-1 (Main) | OPF694-2 (Substitute) | HFBR-1414TZ (Substitute) |
|---|---|---|---|
| Manufacturer | TT Electronics/Optek Technology | TT Electronics/Optek Technology | Broadcom Limited |
| Product Status | Obsolete | Active | Active |
| Wavelength | 850nm | 850nm | 820nm |
| Spectral Bandwidth | 35nm | 35nm | Not specified |
| Voltage - Forward (Vf) (Max) | 2.1V | 2.1V | 1.7V |
| Current - DC Forward (If) (Max) | 100 mA | 100 mA | 100 mA |
| Voltage - DC Reverse (Vr) (Max) | 1V | 1V | 1.8V |
| Connector Type | ST | ST | ST |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Packaging | Not specified | Tray | Tube |
Engineering Selection Recommendations
OPF694-2 is the primary substitute for OPF694-1. Both parts maintain identical electrical characteristics (850nm wavelength, 2.1V forward voltage, 100 mA forward current) and connector interface. OPF694-2 carries active product status with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory alignment and supply continuity.
HFBR-1414TZ serves as an alternative substitute where wavelength flexibility exists within system design parameters. The 820nm wavelength represents a 30nm shift from the OPF694-1 specification. The reduced forward voltage (1.7V versus 2.1V) and increased reverse voltage rating (1.8V versus 1V) indicate different semiconductor characteristics. This part maintains 100 mA maximum forward current and ST connector compatibility. ROHS3 compliance and unlimited MSL rating are equivalent to the main part.
All substitute parts maintain identical connector type (ST), maximum forward current (100 mA), and regulatory compliance status (ROHS3, REACH Unaffected, EAR99 ECCN classification).
Frequently Asked Questions (FAQ)
Q: Can OPF694-2 be used as a direct replacement for OPF694-1?
A: Yes. OPF694-2 maintains identical wavelength (850nm), forward voltage (2.1V maximum), forward current (100 mA maximum), reverse voltage (1V maximum), and connector type (ST). Both parts are ROHS3 compliant with unlimited moisture sensitivity rating.
Q: What is the primary difference between OPF694-1 and HFBR-1414TZ?
A: The wavelength differs: OPF694-1 operates at 850nm while HFBR-1414TZ operates at 820nm. Additionally, HFBR-1414TZ has lower forward voltage (1.7V versus 2.1V) and higher reverse voltage rating (1.8V versus 1V). Both maintain 100 mA maximum forward current and ST connector interface.
Q: Are packaging differences between substitutes significant?
A: OPF694-2 is supplied in Tray packaging while HFBR-1414TZ is supplied in Tube packaging. Packaging selection depends on assembly process requirements and inventory management practices. Electrical and mechanical specifications remain independent of packaging format.
Q: Do all substitute parts meet the same regulatory requirements?
A: Yes. OPF694-2 and HFBR-1414TZ are both ROHS3 compliant, REACH Unaffected, and classified as EAR99 under ECCN. Moisture sensitivity level is 1 (Unlimited) for all parts.
Q: Which substitute should be selected for new designs?
A: OPF694-2 is recommended for new designs requiring exact electrical equivalence to OPF694-1. HFBR-1414TZ is suitable where the 820nm wavelength is compatible with system receiver specifications and where the lower forward voltage requirement provides design advantages.
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