Bourns 2026-26-ALF Gas Discharge Tube Equivalent & Substitute Parts

Part Overview

The Bourns 2026-26-ALF is a Gas Discharge Tube (GDT) rated for 260V DC spark-over voltage with 20kA impulse discharge current capacity in a 3-pole configuration. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The TRIGARD® 2026 series provides reliable overvoltage protection in telecommunications and industrial applications.

Substiute Parts

2026-26-ALF

Bourns Inc.In Stock: 6932026-26-ALF Datasheet

Current PartRFQ

2026-26-A1

Bourns Inc.In Stock: 8762026-26-A1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2026-26-ALF is determined by the following critical parameters:

• Voltage - DC Spark Over (Nominal): 260V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Fail Short characteristic: No
• Package / Case: Cylinder No Lead, 3 Terminal

The substitute part 2026-26-A1 shares the same manufacturer (Bourns Inc.) and base product series (2026), but differs in lead configuration and compliance status. Substitution must account for these variations when evaluating system-level requirements.

Parameter Comparison

Engineering Selection Recommendations

The 2026-26-ALF is obsolete; however, the 2026-26-A1 is currently active. Selection between these parts must consider regulatory compliance requirements:

• The 2026-26-ALF maintains RoHS3 compliance and REACH unaffected status, suitable for applications with strict environmental regulations.
• The 2026-26-A1 is RoHS non-compliant and REACH affected, requiring evaluation against system-level compliance mandates.

Both parts share identical ECCN and HTSUS classifications. Lead configuration differences (0.85MM lead specification for 2026-26-A1 versus user-defined mounting for 2026-26-ALF) must be verified against PCB design and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the 2026-26-A1 directly replace the 2026-26-ALF?

A: Direct replacement depends on electrical parameter confirmation for the 2026-26-A1 and compliance requirements. The 2026-26-A1 specifications for voltage, current, and pole count are not provided in this reference. Lead configuration and mounting type differ between the two parts.

Q: What is the significance of the obsolete status for 2026-26-ALF?

A: Obsolete status indicates the part is no longer manufactured. Active alternatives within the same series should be evaluated for new designs or system updates.

Q: How do RoHS and REACH compliance differences affect substitution?

A: RoHS3 compliance and REACH unaffected status (2026-26-ALF) versus RoHS non-compliant and REACH affected status (2026-26-A1) impact regulatory eligibility. Applications subject to EU environmental directives or customer compliance mandates must account for these differences.

Q: What does the 0.85MM lead specification mean for the 2026-26-A1?

A: The 0.85MM lead specification indicates a standardized lead diameter. This differs from the user-defined mounting type of the 2026-26-ALF and affects PCB footprint compatibility and assembly processes.

Q: Are both parts classified under the same HTSUS code?

A: Yes, both parts share HTSUS code 8536.30.8000, indicating identical tariff classification for import/export purposes.