TUD8MF1B Ultraviolet (UV) Emitter Equivalent & Substitute Parts

Part Overview

The TUD8MF1B is an ultraviolet (UV) emitter manufactured by SETi/Seoul Viosys, designed for applications requiring 285nm wavelength UV emission. This component operates at 6V with a maximum forward current of 200mA and features a 125° viewing angle in a Star Array surface mount package. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

TUD8MF1B

SETi/Seoul ViosysIn Stock: 1070TUD8MF1B Datasheet

Current PartRFQ

TUD7MF1B

SETi/Seoul ViosysIn Stock: 1076TUD7MF1B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TUD8MF1B is determined by the following critical parameters:

• Voltage - Forward (Vf): Must match 6V typical specification
• Current - DC Forward (If): Must support maximum 200mA
• Mounting Type: Must be Surface Mount compatible
• Package / Case: Must be Star Array configuration
• Operating Temperature Range: Must encompass -30°C ~ 60°C
• Viewing Angle: Must maintain 125° specification
• Compliance Standards: Must maintain ROHS3 compliance and REACH unaffected status

The TUD7MF1B qualifies as a substitute part based on matching all critical electrical and mechanical parameters. The primary difference is the wavelength specification (275nm versus 285nm), which represents a 10nm shift within the UV spectrum. Both parts share identical voltage, current, temperature, viewing angle, mounting, and package specifications.

Parameter Comparison

Engineering Selection Recommendations

The TUD7MF1B is the qualified substitute for the obsolete TUD8MF1B. Both components maintain identical electrical specifications (6V, 200mA maximum), mechanical configuration (Star Array surface mount), and thermal operating range (-30°C ~ 60°C). Both parts are ROHS3 compliant and REACH unaffected, ensuring regulatory alignment.

The TUD7MF1B carries active product status, providing supply chain continuity and availability advantages over the obsolete TUD8MF1B. The wavelength difference of 10nm (275nm versus 285nm) represents the only technical distinction between these parts and must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the TUD7MF1B directly replace the TUD8MF1B in existing designs?

A: The TUD7MF1B matches all critical electrical and mechanical parameters of the TUD8MF1B, including voltage (6V), current (200mA maximum), viewing angle (125°), mounting type (surface mount), and package configuration (Star Array). The wavelength difference (275nm versus 285nm) is the only parameter that differs and must be evaluated against application-specific requirements.

Q: What is the significance of the wavelength difference between these parts?

A: The TUD8MF1B operates at 285nm while the TUD7MF1B operates at 275nm. This 10nm difference places both components within the UV-A spectrum range. Application compatibility depends on whether the system design specifies a particular wavelength or accepts a range of UV emission within this band.

Q: Why is the TUD8MF1B listed as obsolete?

A: The TUD8MF1B has reached end-of-life status with the manufacturer. The TUD7MF1B remains in active production, providing a viable alternative for new designs and component replenishment.

Q: Are there packaging differences between these parts?

A: Both the TUD8MF1B and TUD7MF1B use Star Array surface mount packages. The TUD8MF1B was originally supplied in standard packaging, while the TUD7MF1B is supplied in Tray packaging. Both configurations are compatible with standard surface mount assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TUD8MF1B and TUD7MF1B are ROHS3 compliant and REACH unaffected, ensuring equivalent regulatory compliance for applications requiring these certifications.