Bourns 2028-25-CLF Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The Bourns 2028-25-CLF is a 3-pole gas discharge tube (GDT) rated for 250V DC spark-over voltage with 20kA impulse discharge current capacity. This component is designed for through-hole mounting in surge protection and transient suppression applications. The 2028-25-CLF is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

2028-25-CLF

Bourns Inc.In Stock: 11442028-25-CLF Datasheet

Current PartRFQ

2026-25-CLF

Bourns Inc.In Stock: 10572026-25-CLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2028-25-CLF is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 250 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Tolerance: ±20%
• Number of Poles: 3
• Fail Short characteristic: No
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (T-Shape)

The Bourns 2026-25-CLF meets all substitution criteria as a direct functional equivalent. The primary distinction is product status: the 2028 series is obsolete while the 2026 TRIGARD® series remains active in production.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 2026-25-CLF is the direct substitute for the obsolete 2028-25-CLF. Both components share identical electrical specifications, mechanical form factor, and regulatory compliance profiles. The 2026-25-CLF is preferred for new designs and ongoing production due to its active product status and continued manufacturer support. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the 2026-25-CLF be used as a direct replacement for the 2028-25-CLF in existing designs?

A: Yes. The 2026-25-CLF is electrically and mechanically equivalent to the 2028-25-CLF. Both components feature identical 250V DC spark-over voltage, 20kA impulse discharge current, 3-pole configuration, and through-hole axial cylinder package. No circuit modifications are required.

Q: What is the primary reason to transition from the 2028-25-CLF to the 2026-25-CLF?

A: The 2028-25-CLF is classified as obsolete, while the 2026-25-CLF remains in active production. Transitioning to the active part number ensures long-term availability and manufacturer support.

Q: Are there any differences in packaging between these two parts?

A: Both the 2028-25-CLF and 2026-25-CLF use identical through-hole axial cylinder packages with 3 leads in a T-shape configuration. Physical dimensions and lead spacing are equivalent.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the 2028-25-CLF and 2026-25-CLF are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8536.30.8000.