XT350A Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The XT350A is a 2-pole gas discharge tube (GDT) rated for 350V DC spark-over voltage with through-hole axial cylinder packaging, manufactured by Littelfuse Inc. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Substiute Parts

XT350A

Littelfuse Inc.In Stock: 1045XT350A Datasheet

Current PartRFQ

B88069X0810S102

EPCOS - TDK ElectronicsIn Stock: 2105B88069X0810S102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XT350A is determined by the following critical parameters:

• Voltage - DC Spark Over (Nominal): 350 V (exact match required)
• Number of Poles: 2 (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Axial Cylinder (exact match required)
• Fail Short Characteristic: No (exact match required)

The B88069X0810S102 meets all mandatory substitution criteria. Additional parameters such as impulse discharge current rating and tolerance specifications provide enhanced performance characteristics but do not restrict substitution eligibility when the core electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

The B88069X0810S102 is the designated manufacturer-recommended substitute for the XT350A. Both components maintain ROHS3 compliance and share identical core electrical specifications (350V DC spark-over, 2-pole configuration). The substitute part carries active product status, ensuring continued availability and supply chain stability compared to the obsolete XT350A. Both components are classified under the same HTSUS code (8536.30.8000) and ECCN designation (EAR99), confirming regulatory equivalence for procurement and export purposes.

Frequently Asked Questions (FAQ)

Q: Can the B88069X0810S102 be used as a direct replacement for the XT350A?

A: Yes. Both components share identical voltage ratings (350V DC spark-over), pole configuration (2-pole), mounting type (through-hole), and package form (axial cylinder). The substitute part is manufacturer-recommended and meets all core substitution criteria.

Q: What is the difference between the XT350A and B88069X0810S102?

A: The primary difference is product status: the XT350A is obsolete while the B88069X0810S102 is active. The substitute part specifies an impulse discharge current rating of 5000A (5kA) with ±15% tolerance, whereas the XT350A does not provide this specification. Both maintain identical spark-over voltage and mechanical compatibility.

Q: Are there any packaging differences between these components?

A: Both components use axial cylinder through-hole packaging. The XT350A is supplied in standard packaging, while the B88069X0810S102 is supplied in bulk packaging. Physical dimensions and PCB footprint compatibility remain equivalent.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the XT350A and B88069X0810S102 are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8536.30.8000) classifications.

Q: Why should I transition from the XT350A to the B88069X0810S102?

A: The XT350A is obsolete, creating long-term supply and support risks. The B88069X0810S102 is an active product with confirmed inventory availability and manufacturer support, ensuring reliable component sourcing for current and future production requirements.