TLP669LF(D4,S,C,F) Equivalent & Substitute Parts

Part Overview

The TLP669LF(D4,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 and integrated zero-crossing detection circuit. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain electrical isolation ratings, output switching characteristics, and mechanical compatibility with the original 6-DIP package specification.

Substiute Parts

TLP669LF(D4,S,C,F)

Toshiba Semiconductor and StorageIn Stock: 1119TLP669LF(D4,S,C,F) Datasheet

Current PartRFQ

TLP3083F(D4,F

Toshiba Semiconductor and StorageIn Stock: 1079TLP3083F(D4,F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP669LF(D4,S,C,F) is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Voltage isolation rating of 5000Vrms (mandatory match)
• Triac output configuration (mandatory match)
• Zero-crossing detection circuit (mandatory match)
• Single-channel architecture (mandatory match)
• Off-state voltage rating of 800 V (mandatory match)
• On-state current capacity of 100 mA RMS (mandatory match)

Mechanical Compatibility Criteria:

• 6-DIP through-hole package with 5-lead configuration (mandatory match)
• Physical dimensions 0.400" (10.16mm) standard DIP spacing (mandatory match)

Regulatory Compliance:

• Approval by CSA, cUL, UL, and VDE certification bodies (required for equivalent substitution)

The TLP3083F(D4,F) meets all mandatory electrical and mechanical parameters while maintaining active product status and enhanced regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

The TLP3083F(D4,F) is the direct equivalent substitute for the obsolete TLP669LF(D4,S,C,F). Both components share identical electrical isolation ratings, output configurations, and mechanical package specifications required for direct replacement in existing circuit designs.

Product Status Justification: The TLP669LF(D4,S,C,F) is classified as obsolete, indicating discontinued manufacturing and unavailable inventory for future procurement. The TLP3083F(D4,F) maintains active production status with confirmed inventory availability, ensuring supply chain continuity for new designs and production requirements.

Regulatory Compliance: Both parts carry CSA, cUL, UL, and VDE certifications. The TLP3083F(D4,F) includes additional CQC certification, providing expanded regulatory coverage. All certifications required for the original part are maintained in the substitute.

Electrical Performance: The substitute component demonstrates improved specifications in several parameters. The LED trigger current requirement is reduced from 10mA to 5mA, reducing input circuit power consumption. The substitute provides documented static dV/dt rating of 2kV/µs (typical), hold current of 600µA, and forward voltage of 1.15V, enabling more precise circuit design calculations compared to the original part where these parameters were not specified.

Mechanical Compatibility: Both components utilize identical 6-DIP through-hole packaging with 5-lead configuration and 0.400" (10.16mm) standard spacing, permitting direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the TLP3083F(D4,F) be used as a direct replacement for the TLP669LF(D4,S,C,F) in existing circuit boards?

A: Yes. Both components share identical electrical isolation ratings (5000Vrms), triac output configuration, zero-crossing detection, single-channel architecture, off-state voltage (800V), and on-state current capacity (100mA RMS). The 6-DIP through-hole package with 5-lead configuration and 0.400" spacing is identical, permitting direct board-level substitution without layout modifications.

Q: What are the key differences between these two optoisolators?

A: The primary difference is product status: the TLP669LF(D4,S,C,F) is obsolete while the TLP3083F(D4,F) is active production. The substitute provides additional documented electrical parameters including static dV/dt (2kV/µs typical), hold current (600µA), forward voltage (1.15V), and operating temperature range (-40°C to 100°C). The LED trigger current requirement is lower in the substitute (5mA versus 10mA), reducing input circuit power consumption. The substitute includes CQC certification in addition to CSA, cUL, UL, and VDE certifications.

Q: Are there any circuit design considerations when switching from the TLP669LF(D4,S,C,F) to the TLP3083F(D4,F)?

A: The lower LED trigger current (5mA versus 10mA) in the substitute allows for reduced input circuit current limiting resistor values if desired, though existing designs using 10mA trigger specifications will operate within the substitute's capabilities. The documented electrical parameters in the substitute enable more precise circuit calculations for dV/dt performance and hold current characteristics.

Q: What packaging formats are available for the TLP3083F(D4,F)?

A: The TLP3083F(D4,F) is supplied in tube packaging. Both the original and substitute components use 6-DIP through-hole package configuration.

Q: Are both components certified for the same regulatory standards?

A: Both components carry CSA, cUL, UL, and VDE certifications. The TLP3083F(D4,F) includes additional CQC certification, providing expanded regulatory coverage. All certifications required for the original part are maintained in the substitute.

Q: Why is the TLP669LF(D4,S,C,F) classified as obsolete?

A: Obsolete classification indicates the manufacturer has discontinued production of this component. The TLP3083F(D4,F) represents the active equivalent, ensuring continued availability for new designs and production requirements.