CSL05 TR Equivalent & Substitute Parts

Part Overview

The CSL05 TR is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for surface mount applications in the SOT-23 package. This component provides transient overvoltage protection with a 5V reverse standoff voltage and 12V clamping voltage at peak pulse current. The CSL05 TR is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

CSL05 TR

Central Semiconductor CorpIn Stock: 1094CSL05 TR Datasheet

Current PartRFQ

SM05T1G

onsemiIn Stock: 85226SM05T1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSL05 TR is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff: 5V nominal
• Voltage - Breakdown (Min): 6V or higher
• Current - Peak Pulse (8/20µs): 17A minimum
• Unidirectional configuration with 2 channels
• Zener diode type

Mechanical Compatibility Criteria:

• Package / Case: SOT-23-3 (TO-236-3, SC-59)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

The SM05T1G from onsemi meets all electrical and mechanical substitution criteria. Both devices share identical reverse standoff voltage, peak pulse current rating, package configuration, and moisture sensitivity classification. The SM05T1G is an active product with current manufacturing support and full RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The SM05T1G is the direct functional equivalent for CSL05 TR replacement. Selection is based on the following factors:

Product Status: The CSL05 TR is obsolete with no active manufacturing support. The SM05T1G is an active product with current inventory availability and ongoing manufacturer support.

Regulatory Compliance: The SM05T1G carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for new designs and procurement.

Electrical Performance: Both devices maintain identical reverse standoff voltage (5V) and peak pulse current (17A at 8/20µs). The SM05T1G exhibits lower clamping voltage (9.8V vs. 12V) and reduced peak pulse power (300W vs. 400W), representing improved performance characteristics within the same functional class.

Package Compatibility: Both devices use identical SOT-23-3 (TO-236) surface mount packaging with matching moisture sensitivity classification, ensuring direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can SM05T1G directly replace CSL05 TR on existing PCBs?

A: Yes. Both devices use identical SOT-23-3 package geometry and pinout configuration. No PCB layout modifications are required for physical substitution.

Q: What are the key electrical differences between these parts?

A: The primary difference is clamping voltage: CSL05 TR clamps at 12V maximum while SM05T1G clamps at 9.8V maximum. Both maintain the same 5V reverse standoff voltage and 17A peak pulse current rating. The lower clamping voltage of SM05T1G provides improved transient suppression performance.

Q: Are there any temperature range considerations?

A: The SM05T1G operates across a wider temperature range (-55°C to 150°C) compared to the CSL05 TR (-50°C to 125°C). This extended range provides additional design margin for applications with extreme temperature requirements.

Q: Is the SM05T1G suitable for new designs?

A: Yes. The SM05T1G is an active product with full RoHS3 and REACH compliance, making it appropriate for new product development and long-term procurement planning.

Q: What is the moisture sensitivity classification for both parts?

A: Both the CSL05 TR and SM05T1G carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.