TCDT1100 Equivalent & Substitute Parts

Part Overview

The TCDT1100 is an optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. It provides 5000Vrms isolation with a single channel in a 6-DIP package. The device is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

TCDT1100

Vishay Semiconductor Opto DivisionIn Stock: 17310TCDT1100 Datasheet

Current PartRFQ

CNY17-1-060E

Broadcom LimitedIn Stock: 20950CNY17-1-060E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TCDT1100 is determined by the following critical parameters:

• Voltage isolation rating: 5000Vrms minimum
• Number of channels: 1 channel
• Package type: 6-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Current transfer ratio minimum: 40% @ 10mA
• Output configuration: Transistor output
• Vce saturation: 300mV maximum
• RoHS3 compliance

The CNY17-1-060E from Broadcom Limited meets these substitution criteria. Both devices share identical isolation voltage, channel count, package geometry, and mounting configuration. The CNY17-1-060E maintains the required current transfer ratio and saturation characteristics while offering enhanced performance specifications in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

The CNY17-1-060E is the manufacturer-recommended substitute for the obsolete TCDT1100. Both devices are ROHS3 compliant and maintain identical isolation voltage and saturation characteristics. The CNY17-1-060E is currently in active production status, ensuring long-term availability and supply chain continuity.

The CNY17-1-060E offers enhanced electrical performance with higher maximum output voltage (70V vs. 32V) and increased output current capability (150mA vs. 50mA). The addition of base output on the transistor provides additional design flexibility. The operating temperature range of the CNY17-1-060E extends to -55°C minimum, matching the TCDT1100 lower limit, though the upper limit is 100°C compared to 110°C.

For applications requiring the full -55°C to 110°C temperature range of the original TCDT1100, thermal performance validation is necessary when transitioning to the CNY17-1-060E.

Frequently Asked Questions (FAQ)

Q: Can the CNY17-1-060E directly replace the TCDT1100 in existing designs?

A: The CNY17-1-060E shares the same 6-DIP package, isolation voltage, and saturation characteristics as the TCDT1100. Pin-to-pin compatibility exists for standard optoisolator applications. The addition of base output on the CNY17-1-060E does not affect basic functionality in designs using only the collector output.

Q: What are the key differences between these devices?

A: The CNY17-1-060E provides higher output voltage capability (70V vs. 32V) and increased output current (150mA vs. 50mA). It includes a base connection for additional circuit design options. The CNY17-1-060E is in active production, whereas the TCDT1100 is obsolete.

Q: Are both devices RoHS compliant?

A: Both the TCDT1100 and CNY17-1-060E are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the operating temperature consideration?

A: The TCDT1100 operates from -55°C to 110°C. The CNY17-1-060E operates from -55°C to 100°C. Applications requiring operation above 100°C require thermal analysis of the CNY17-1-060E performance.

Q: Are there other CNY17 variants available?

A: The CNY17-1-060E is part of the CNY17 family, which includes variants CNY17-1, CNY17-2, CNY17-1X001, CNY17-5X, and CNY17-5. Selection among these variants depends on specific isolation voltage, channel count, and output configuration requirements for your application.