Bourns 2026-30-ALF Gas Discharge Tube Equivalent & Substitute Parts

Part Overview

The Bourns 2026-30-ALF is a Gas Discharge Tube (GDT) from the TRIGARD® 2026 series, designed for surge protection applications requiring 300V DC spark-over voltage with 20kA impulse discharge capability in a 3-pole configuration. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations where this specification remains applicable.

Substiute Parts

2026-30-ALF

Bourns Inc.In Stock: 10272026-30-ALF Datasheet

Current PartRFQ

2026-30-A1

Bourns Inc.In Stock: 7882026-30-A1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2026-30-ALF is determined by the following critical parameters:

• Voltage Rating: DC spark-over voltage must be 300V nominal
• Discharge Current: Impulse discharge current must support 20kA (8/20µs waveform)
• Pole Configuration: 3-pole requirement for circuit topology compatibility
• Fail Mode: Non-shorting characteristic (Fail Short = No)
• Package Type: Cylinder configuration with 3 terminals for mechanical fit

The substitute part 2026-30-A1 shares the base product number (2026) and manufacturer (Bourns Inc.), indicating design lineage within the same product family. However, critical parameter alignment must be verified before substitution.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 2026-30-ALF is obsolete, while 2026-30-A1 is active. Active status indicates ongoing manufacturing and availability.

Compliance Alignment: The main part is RoHS3 compliant and REACH unaffected. The substitute part 2026-30-A1 is RoHS non-compliant and REACH affected. Selection must account for regulatory requirements in the target application region and end-use industry.

Data Limitations: Electrical parameters (voltage rating, discharge current, pole configuration, fail mode) and complete package specifications for 2026-30-A1 are not provided in available documentation. Direct substitution cannot be confirmed without complete technical specification alignment.

Frequently Asked Questions (FAQ)

Q: Can 2026-30-A1 directly replace 2026-30-ALF in existing designs?

A: Direct substitution cannot be confirmed. While both parts share the same manufacturer and base product number (2026), critical electrical parameters for 2026-30-A1 (voltage rating, discharge current, pole count, fail mode) are not specified in available data. Complete technical specifications must be obtained from the manufacturer before substitution.

Q: What are the key differences between these parts?

A: The documented differences are product status (obsolete vs. active), RoHS compliance (RoHS3 compliant vs. non-compliant), and REACH status (unaffected vs. affected). Electrical and mechanical specifications for 2026-30-A1 require manufacturer documentation for comparison.

Q: Does the lead specification (0.85MM LEAD) in 2026-30-A1 affect compatibility?

A: Lead dimensions affect mechanical fit and soldering characteristics. The 0.85MM lead specification for 2026-30-A1 must be evaluated against the original package specification (Cylinder No Lead, 3 Terminal) to determine mechanical compatibility with existing PCB layouts and assembly processes.

Q: Are there compliance concerns with using 2026-30-A1?

A: Yes. 2026-30-A1 is RoHS non-compliant and REACH affected, whereas 2026-30-ALF is RoHS3 compliant and REACH unaffected. Applications subject to RoHS or REACH regulations may not permit substitution with 2026-30-A1. Regulatory requirements for the target market must be evaluated.

Q: Where can I find complete specifications for 2026-30-A1?

A: Complete technical specifications including electrical parameters (voltage, discharge current, pole configuration) and detailed package information must be obtained directly from Bourns Inc. documentation or authorized distributors.