Bourns 2037-35-C Gas Discharge Tube Equivalent & Substitute Parts

Part Overview

The Bourns 2037-35-C 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 ongoing design support and procurement. The 2037-35-B serves as the direct functional equivalent, maintaining identical electrical and mechanical specifications while offering active product status and improved availability.

Substiute Parts

2037-35-C

Bourns Inc.In Stock: 10012037-35-C Datasheet

Current PartRFQ

2037-35-B

Bourns Inc.In Stock: 12002037-35-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2037-35-C with the 2037-35-B is based on strict equivalence across all critical electrical and mechanical parameters. Both parts share identical specifications for voltage rating, impulse discharge current, tolerance band, pole configuration, mounting type, and package form factor. The substitution is valid because the allowed parameters for gas discharge tube selection—voltage class, current capacity, and physical mounting—are fully matched. The primary distinction is product status: the 2037-35-C is obsolete while the 2037-35-B maintains active status, making the latter the recommended procurement choice for new designs and ongoing supply.

Parameter Comparison

Engineering Selection Recommendations

The 2037-35-B is the direct replacement for the 2037-35-C. Both components are RoHS non-compliant and REACH-affected, indicating identical regulatory classification. The 2037-35-B offers the advantage of active product status, ensuring continued manufacturer support and supply chain availability. For applications currently using the 2037-35-C, transition to the 2037-35-B requires no circuit redesign or performance re-evaluation, as all electrical and mechanical parameters remain unchanged. Inventory considerations favor the 2037-35-B, which maintains 1098 units in stock compared to the 949 units available for the obsolete variant.

Frequently Asked Questions (FAQ)

Q: Can the 2037-35-B directly replace the 2037-35-C in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage rating, current capacity, tolerance, pole count, and physical form factor. No circuit modifications are required.

Q: What is the primary reason to transition from 2037-35-C to 2037-35-B?

A: The 2037-35-C is classified as obsolete, while the 2037-35-B maintains active product status. This ensures continued availability, manufacturer support, and long-term supply chain reliability.

Q: Are there any compliance differences between these parts?

A: No. Both parts share identical RoHS and REACH status classifications. Regulatory compliance considerations do not differentiate these components.

Q: Does packaging differ between the two parts?

A: Both parts use identical through-hole axial cylinder packaging. The 2037-35-C is supplied in standard packaging, while the 2037-35-B is supplied in bulk packaging. This distinction does not affect electrical or mechanical compatibility.

Q: What are the critical parameters for gas discharge tube substitution?

A: For the 2037 series, substitution validity depends on matching voltage rating (350V), impulse discharge current (5kA), pole configuration (2-pole), and mounting type (through-hole). All these parameters are identical between the 2037-35-C and 2037-35-B.