ST-0800-BLB-STD Equivalent & Substitute Parts

Part Overview

The ST-0800-BLB-STD is a Gas Discharge Tube (GDT) rated at 800V with 2-pole through-hole configuration, manufactured by Bourns Inc. under the Sparctube™ ST-0800 series. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and new design implementations where this specification remains applicable.

Substiute Parts

ST-0800-BLB-STD

Bourns Inc.In Stock: 1046ST-0800-BLB-STD Datasheet

Current PartRFQ

B88069X2140S102

EPCOS - TDK ElectronicsIn Stock: 19947B88069X2140S102 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ST-0800-BLB-STD is determined by the following critical parameters:

• Voltage Rating: 800V DC spark-over voltage is the primary electrical requirement
• Pole Configuration: 2-pole architecture must be maintained for circuit topology compatibility
• Mounting Technology: Through-hole mounting is required for PCB integration
• Physical Form Factor: Axial cylinder package ensures mechanical fit within existing designs
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status must be preserved

The substitute part B88069X2140S102 satisfies all these core requirements while offering enhanced impulse discharge current capability (10kA) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The B88069X2140S102 serves as a direct functional substitute for the obsolete ST-0800-BLB-STD based on electrical and mechanical parameter alignment. Both components maintain identical voltage ratings, pole configuration, mounting methodology, and physical form factor. The substitute part offers the advantage of active product status, ensuring continued availability and supply chain reliability.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements. The tolerance variance (±12% versus ±15%) remains within acceptable engineering margins for gas discharge tube applications where voltage rating stability is the primary design criterion.

Frequently Asked Questions (FAQ)

Q: Can B88069X2140S102 be used as a direct replacement for ST-0800-BLB-STD?

A: Yes. Both components share identical voltage ratings (800V), pole configuration (2-pole), mounting type (through-hole), and package form factor (axial cylinder). The substitute part is electrically and mechanically compatible.

Q: What is the significance of the impulse discharge current specification?

A: The B88069X2140S102 specifies 10kA impulse discharge current (8/20µs), while the ST-0800-BLB-STD does not provide this parameter. This specification indicates the substitute part's surge handling capability and does not affect substitution validity when the original design does not mandate a specific impulse current threshold.

Q: How do the tolerance specifications differ?

A: The ST-0800-BLB-STD carries ±12% tolerance, while B88069X2140S102 carries ±15% tolerance. Both tolerances are acceptable for gas discharge tube applications where the primary design criterion is voltage rating stability. The 3% difference does not impact functional compatibility.

Q: Are there supply chain advantages to using the substitute part?

A: Yes. The B88069X2140S102 maintains active product status with 19,854 units in stock, compared to the obsolete ST-0800-BLB-STD. This ensures long-term availability and reduces procurement risk for ongoing production and maintenance applications.

Q: Do both parts meet current regulatory standards?

A: Yes. Both the ST-0800-BLB-STD and B88069X2140S102 are ROHS3 compliant and REACH unaffected, satisfying current environmental and regulatory requirements.