Equivalent & Substitute Parts for Bourns 2037-35-CLF

Part Overview

The Bourns 2037-35-CLF is a Gas Discharge Tube (GDT) rated for 350V DC spark-over voltage with 5000A (5kA) impulse discharge current capacity in a 2-pole through-hole configuration. This component is classified as obsolete, necessitating identification of active equivalent parts for continued system design and procurement. The 2037-35-CLF maintains ROHS3 compliance and is suitable for overvoltage protection applications requiring axial cylinder package geometry.

Substiute Parts

2037-35-CLF

Bourns Inc.In Stock: 10472037-35-CLF Datasheet

Current PartRFQ

2037-35-BLF

Bourns Inc.In Stock: 53962037-35-BLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 2037-35-BLF qualifies as a direct substitute for the 2037-35-CLF based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Voltage - DC Spark Over (Nominal): 350 V
• Impulse Discharge Current (8/20µs): 5000A (5kA)
• Tolerance: ±15%
• Number of Poles: 2
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder
• Fail Short characteristic: No

The primary distinction between these parts is product status and packaging configuration. The 2037-35-CLF is obsolete with tape-and-reel packaging, while the 2037-35-BLF is active with bulk packaging.

Parameter Comparison

Engineering Selection Recommendations

The 2037-35-BLF is the direct functional equivalent for the obsolete 2037-35-CLF. Both parts share identical electrical specifications (350V DC spark-over, 5kA impulse discharge current) and mechanical configuration (2-pole, through-hole, axial cylinder package). The 2037-35-BLF maintains active product status and full ROHS3 compliance, making it suitable for new designs and procurement requiring replacement of the obsolete 2037-35-CLF. Packaging differences (bulk versus tape-and-reel) do not affect electrical or mechanical compatibility and are determined by procurement volume and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the 2037-35-BLF directly replace the 2037-35-CLF in existing designs?

A: Yes. Both parts are electrically and mechanically identical, with matching 350V DC spark-over voltage, 5kA impulse discharge current, 2-pole configuration, and through-hole axial cylinder package. The 2037-35-BLF is the active equivalent.

Q: What is the difference between CLF and BLF packaging designations?

A: CLF indicates tape-and-reel packaging, while BLF indicates bulk packaging. Both contain the same Gas Discharge Tube component. Selection depends on assembly process requirements and order quantities.

Q: Are there any compliance differences between these parts?

A: No. Both the 2037-35-CLF and 2037-35-BLF maintain identical ROHS3 compliance status and are REACH Unaffected.

Q: Why is the 2037-35-CLF listed as obsolete?

A: Product obsolescence is determined by manufacturer lifecycle decisions. The 2037-35-BLF remains in active production with identical specifications, providing continuity for applications requiring this GDT specification.

Q: Are the electrical characteristics guaranteed to be identical between these parts?

A: Yes. Both parts share identical nominal specifications: 350V DC spark-over voltage, 5000A (5kA) impulse discharge current at 8/20µs, ±15% tolerance, and 2-pole configuration.