TLP669L(S,C,F) Equivalent & Substitute Parts

Part Overview

The TLP669L(S,C,F) is an optoisolator with triac output manufactured by Toshiba Semiconductor and Storage. This component provides galvanic isolation up to 5000Vrms with a single-channel triac output configuration, integrated zero-crossing detection circuit, and through-hole 6-DIP packaging. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across isolation voltage, output type, channel configuration, and thermal operating range.

Substiute Parts

TLP669L(S,C,F)

Toshiba Semiconductor and StorageIn Stock: 848TLP669L(S,C,F) Datasheet

Current PartRFQ

TLP3083F(F

Toshiba Semiconductor and StorageIn Stock: 1176TLP3083F(F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP669L(S,C,F) is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Output Type: Triac (required for AC switching applications)
• Zero Crossing Circuit: Yes (required for synchronized switching)
• Number of Channels: 1 (single-channel configuration)
• Voltage - Isolation: 5000Vrms (galvanic isolation specification)
• Voltage - Off State: 800 V (maximum blocking voltage)
• Current - On State (It (RMS)) (Max): 100 mA (load current capacity)
• Current - Hold (Ih): 600µA (holding current threshold)
• Operating Temperature: -40°C ~ 100°C (thermal operating range)
• Mounting Type: Through Hole (PCB assembly compatibility)
• Package / Case: 6-DIP (physical form factor)

The TLP3083F(F) meets all mandatory equivalence criteria and qualifies as a direct substitute. The substitute part maintains identical isolation voltage, output configuration, channel count, and thermal specifications while offering enhanced performance characteristics in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

The TLP3083F(F) is the manufacturer-recommended substitute for the obsolete TLP669L(S,C,F). Both components are manufactured by Toshiba Semiconductor and Storage and share identical core functional specifications for triac-output optoisolation applications.

Compliance and Certification: The TLP3083F(F) maintains all required regulatory approvals (CSA, cUL, UL, VDE) and adds CQC certification. The substitute part is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original TLP669L(S,C,F) carries equivalent certifications (CSA, cUL, UL, VDE) without documented RoHS or REACH status.

Performance Characteristics: The TLP3083F(F) demonstrates enhanced performance in static dV/dt rating (2kV/µs typical versus 200V/µs minimum) and reduced LED trigger current requirement (5mA maximum versus 10mA maximum). These improvements provide design margin in high-speed switching applications and reduce input drive requirements. Forward voltage is marginally lower (1.15V typical versus 1.2V typical), and maximum DC forward current is increased to 50mA.

Physical Compatibility: Both parts use 6-DIP through-hole packaging with 5 leads. The TLP3083F(F) has a 0.400" (10.16mm) pitch compared to the TLP669L(S,C,F) 0.300" (7.62mm) pitch. PCB layout modifications are required for direct substitution due to this dimensional difference.

Product Availability: The TLP3083F(F) is in active production with documented inventory availability (1067 pieces), whereas the TLP669L(S,C,F) is obsolete. For new designs and production continuity, the TLP3083F(F) is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the TLP3083F(F) directly replace the TLP669L(S,C,F) without circuit modification?

A: The TLP3083F(F) is functionally equivalent across all critical electrical parameters (isolation voltage, output type, channel configuration, thermal range, and load current capacity). However, the 6-DIP package pitch differs (0.400" versus 0.300"), requiring PCB layout modification for physical mounting. Electrical circuit operation remains unchanged.

Q: What is the significance of the reduced LED trigger current in the TLP3083F(F)?

A: The TLP3083F(F) requires a maximum of 5mA LED trigger current compared to 10mA for the TLP669L(S,C,F). This lower requirement reduces input drive circuit power consumption and allows use of higher-impedance input sources. Existing circuits designed for 10mA operation will function correctly with the substitute part, as the lower requirement is a performance improvement.

Q: Does the higher static dV/dt rating of the TLP3083F(F) affect circuit design?

A: The TLP3083F(F) specifies 2kV/µs typical static dV/dt capability compared to 200V/µs minimum for the TLP669L(S,C,F). This enhanced rating provides greater immunity to high-speed voltage transients and improves reliability in applications with steep AC waveform transitions. Existing circuit designs require no modification to benefit from this improvement.

Q: Are there any thermal or environmental differences between these parts?

A: Both parts operate across the identical temperature range (-40°C to 100°C). The TLP3083F(F) includes documented RoHS3 compliance and REACH unaffected status, whereas the original part does not specify these environmental certifications. For applications requiring RoHS or REACH compliance, the TLP3083F(F) is the appropriate selection.

Q: What certifications apply to the TLP3083F(F)?

A: The TLP3083F(F) carries CSA, cUL, UL, VDE, and CQC approvals. These certifications cover North American (cUL, UL), European (VDE, CSA), and Chinese (CQC) regulatory requirements. The original TLP669L(S,C,F) carries CSA, cUL, UL, and VDE certifications without CQC documentation.

Q: Is the TLP3083F(F) available in the same packaging format?

A: Both parts use 6-DIP through-hole packaging with 5 leads. The physical pitch differs (0.400" for TLP3083F(F) versus 0.300" for TLP669L(S,C,F)), requiring PCB redesign for direct substitution. The supplier device package designation is identical (6-DIP) for both components.

Q: What is the product status difference, and why does it matter?

A: The TLP669L(S,C,F) is classified as obsolete, indicating discontinued production and limited availability. The TLP3083F(F) is in active production status with current manufacturing and documented inventory. For new designs and long-term production support, the active substitute part ensures supply chain continuity and access to current manufacturing quality standards.