LTV-355T-C Equivalent & Substitute Parts

Part Overview

The LTV-355T-C is an optoisolator with Darlington output manufactured by Lite-On Inc., designed for high-voltage isolation applications. This component provides 3750Vrms isolation with a single channel configuration in a 4-SOP surface mount package. The part is currently in active production status with 718 units available in new original inventory. Substitute parts are identified to address packaging variations, inventory availability, and supply chain flexibility while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

LTV-355T-C
Lite-On Inc.In Stock: 777LTV-355T-C Datasheet
LTV-355T-C
Current Part
LTV-355T
Lite-On Inc.In Stock: 2282LTV-355T Datasheet
LTV-355T
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Lite-On Inc.
Series LTV-355T
Category Optoisolators
Number of Channels 1
Voltage - Isolation 3750Vrms
Current Transfer Ratio (Min) 600% @ 1mA
Current Transfer Ratio (Max) 7500% @ 1mA
Output Type Darlington
Voltage - Output (Max) 35V
Current - Output / Channel 80mA
Vce Saturation (Max) 1V
Operating Temperature Range -55°C ~ 110°C
Package / Case 4-SMD, Gull Wing
Supplier Device Package 4-SOP
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the LTV-355T-C is determined by strict equivalence across the following critical parameters:

  • Voltage - Isolation: 3750Vrms
  • Number of Channels: 1
  • Output Type: Darlington
  • Current Transfer Ratio: 600% (Min) @ 1mA and 7500% (Max) @ 1mA
  • Voltage - Output (Max): 35V
  • Current - Output / Channel: 80mA
  • Vce Saturation (Max): 1V
  • Operating Temperature Range: -55°C ~ 110°C
  • Package / Case: 4-SMD, Gull Wing
  • Supplier Device Package: 4-SOP
  • Mounting Type: Surface Mount

The LTV-355T qualifies as a parametric equivalent substitute. Both parts share identical electrical specifications and mechanical form factors. The primary difference is packaging configuration: LTV-355T-C is supplied in standard packaging, while LTV-355T is supplied in Tape & Reel (TR) format. This distinction affects inventory management and automated assembly processes but does not alter component functionality or performance characteristics.

Parameter Comparison

Parameter LTV-355T-C LTV-355T Match Status
Manufacturer Lite-On Inc. Lite-On Inc. Identical
Series LTV-355T LTV-355T Identical
Number of Channels 1 1 Identical
Voltage - Isolation 3750Vrms 3750Vrms Identical
Current Transfer Ratio (Min) 600% @ 1mA 600% @ 1mA Identical
Current Transfer Ratio (Max) 7500% @ 1mA 7500% @ 1mA Identical
Output Type Darlington Darlington Identical
Voltage - Output (Max) 35V 35V Identical
Current - Output / Channel 80mA 80mA Identical
Vce Saturation (Max) 1V 1V Identical
Operating Temperature Range -55°C ~ 110°C -55°C ~ 110°C Identical
Package / Case 4-SMD, Gull Wing 4-SMD, Gull Wing Identical
Supplier Device Package 4-SOP 4-SOP Identical
Mounting Type Surface Mount Surface Mount Identical
RoHS Status ROHS3 Compliant ROHS3 Compliant Identical
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited) Identical
Packaging Format Standard Tape & Reel (TR) Different
Inventory Status 718 Pcs New Original In Stock 2172 Pcs New Original In Stock Different

Engineering Selection Recommendations

Both LTV-355T-C and LTV-355T are active production components manufactured by Lite-On Inc. with ROHS3 compliance and identical electrical performance specifications. Selection between these parts should be based on packaging and supply requirements:

  • LTV-355T-C: Standard packaging format suitable for manual assembly, kit builds, and applications with lower volume requirements. Current inventory: 718 units.
  • LTV-355T: Tape & Reel (TR) packaging format optimized for automated pick-and-place assembly and high-volume production environments. Current inventory: 2172 units.

Both parts maintain identical functional characteristics, mechanical form factors, and compliance certifications. The choice between them is determined by assembly methodology and procurement strategy rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can LTV-355T be used as a direct replacement for LTV-355T-C in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. LTV-355T uses Tape & Reel (TR) packaging while LTV-355T-C uses standard packaging. This distinction does not affect component performance or PCB integration.

Q: What is the difference between standard packaging and Tape & Reel (TR) packaging?

A: Standard packaging (LTV-355T-C) supplies components in conventional trays or tubes suitable for manual handling and small-batch assembly. Tape & Reel (TR) packaging (LTV-355T) supplies components on continuous tape spools designed for automated pick-and-place equipment and high-volume manufacturing processes.

Q: Are there any electrical performance differences between LTV-355T-C and LTV-355T?

A: No. Both parts share identical electrical specifications including isolation voltage (3750Vrms), current transfer ratio (600% to 7500% @ 1mA), output voltage (35V max), output current (80mA), and operating temperature range (-55°C to 110°C).

Q: Do both parts have the same compliance certifications?

A: Yes. Both LTV-355T-C and LTV-355T are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Both carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.49.8000).

Q: Which part should be selected for high-volume production?

A: LTV-355T with Tape & Reel (TR) packaging is optimized for high-volume automated assembly. It currently has higher inventory availability (2172 units) compared to LTV-355T-C (718 units).

Q: Can these parts be mixed in the same production batch?

A: Yes, provided your assembly process can accommodate both standard and Tape & Reel packaging formats. However, using a single packaging format throughout a production run is recommended for process consistency and supply chain efficiency.

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