ST-0600-BLB-STD Gas Discharge Tube Equivalent & Substitute Parts

Part Overview

The ST-0600-BLB-STD is a Gas Discharge Tube (GDT) manufactured by Bourns Inc., rated for 600V DC spark-over voltage with 2-pole through-hole configuration. This component is classified as Obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The Sparctube™ ST-0600 series has been superseded by active product lines that maintain electrical compatibility while offering enhanced performance characteristics.

Substiute Parts

ST-0600-BLB-STD

Bourns Inc.In Stock: 832ST-0600-BLB-STD Datasheet

Current PartRFQ

2027-60-BLF

Bourns Inc.In Stock: 9672027-60-BLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ST-0600-BLB-STD is determined by the following critical electrical and mechanical parameters:

• Voltage Rating: 600 V DC spark-over voltage (nominal)
• Pole Configuration: 2-pole architecture
• Mounting Technology: Through-hole assembly
• Package Form Factor: Axial cylinder configuration
• Fail Mode: Non-shorting characteristic
• Regulatory Compliance: ROHS3 compliance requirement

The substitute part 2027-60-BLF meets all mandatory compatibility criteria. While the substitute exhibits a higher impulse discharge current rating (10 kA versus unspecified for the original) and a wider tolerance band (±15% versus ±12%), these parameters represent enhanced or equivalent performance within the allowed electrical specifications for this product category.

Parameter Comparison

Engineering Selection Recommendations

The 2027-60-BLF is the direct substitute for the obsolete ST-0600-BLB-STD. Both components are manufactured by Bourns Inc. and share identical electrical ratings for voltage and pole configuration. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Both parts maintain ROHS3 compliance and identical export classification (EAR99), supporting regulatory requirements across manufacturing and distribution channels. The substitute's higher impulse discharge current specification (10 kA) and active product status provide enhanced performance margins and manufacturing consistency compared to the obsolete original.

Frequently Asked Questions (FAQ)

Q: Can the 2027-60-BLF directly replace the ST-0600-BLB-STD in existing designs?

A: Yes. Both components share identical voltage ratings (600 V), pole configuration (2-pole), mounting type (through-hole), and package form factor (axial cylinder). The non-shorting fail mode is consistent across both parts.

Q: What is the significance of the different tolerance specifications?

A: The ST-0600-BLB-STD specifies ±12% tolerance, while the 2027-60-BLF specifies ±15%. Both tolerances fall within acceptable ranges for gas discharge tube applications. The wider tolerance of the substitute does not compromise circuit protection function.

Q: Why is the impulse discharge current specified for the substitute but not the original?

A: The 2027-60-BLF datasheet explicitly documents 10 kA impulse discharge current (8/20µs waveform). This specification indicates the substitute's capability to handle transient surge events. The absence of this specification in the original part documentation does not indicate incompatibility.

Q: Are there any packaging or inventory considerations?

A: The ST-0600-BLB-STD is obsolete with 775 pieces available in current inventory. The 2027-60-BLF is active production with 878 pieces in stock. For new designs or long-term production requirements, the active substitute part is recommended.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code (8536.30.8000).