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GT-BCMN2000L Equivalent & Substitute Parts
Part Overview
The GT-BCMN2000L is a gas discharge tube (GDT) manufactured by Lumex Opto/Components Inc., designed for overvoltage protection applications. This component features a 2000 V DC spark-over voltage rating with 5000 A (5 kA) impulse discharge current capacity in a 2-pole through-hole configuration. The product is currently classified as obsolete, making identification of equivalent substitute components essential for ongoing system maintenance, repair, and redesign efforts where this protection device is specified.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | GT-BCMN2000L |
| Manufacturer | Lumex Opto/Components Inc. |
| Description | Gas Discharge Tube |
| Voltage - DC Spark Over (Nom) | 2000 V |
| Impulse Discharge Current (8/20µs) | 5000 A (5 kA) |
| Number of Poles | 2 |
| Mounting Type | Through Hole |
| Fail Short | No |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute components for the GT-BCMN2000L are identified based on strict electrical and mechanical parameter matching. The critical parameters that determine substitution eligibility are:
Electrical Parameters:
- Voltage - DC Spark Over (Nominal): 2000 V
- Impulse Discharge Current (8/20µs): 5000 A (5 kA)
Mechanical Parameters:
- Number of Poles: 2
- Mounting Type: Through Hole
- Fail Short Characteristic: No
Compliance Parameters:
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
The substitute part CG32.0L from Littelfuse Inc. meets all specified electrical and mechanical requirements, maintaining identical spark-over voltage, discharge current capacity, pole configuration, and mounting methodology. Both components are ROHS3 compliant with MSL rating of 1, ensuring compatibility in regulated applications.
Parameter Comparison
| Parameter | GT-BCMN2000L (Lumex) | CG32.0L (Littelfuse) |
|---|---|---|
| Voltage - DC Spark Over (Nom) | 2000 V | 2000 V |
| Impulse Discharge Current (8/20µs) | 5000 A (5 kA) | 5000 A (5 kA) |
| Number of Poles | 2 | 2 |
| Mounting Type | Through Hole | Through Hole |
| Fail Short | No | No |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The CG32.0L from Littelfuse Inc. is the qualified substitute for the obsolete GT-BCMN2000L. Selection of this substitute is based on the following engineering criteria:
Electrical Equivalence: Both components provide identical 2000 V DC spark-over voltage and 5000 A impulse discharge current capacity, ensuring equivalent overvoltage protection performance in circuit applications.
Mechanical Compatibility: The 2-pole through-hole mounting configuration is identical between both components, allowing direct board-level integration without PCB redesign.
Compliance Alignment: Both components maintain ROHS3 compliance and MSL rating of 1 (unlimited moisture sensitivity), satisfying regulatory requirements for restricted substance use and storage conditions.
Product Status Advantage: The CG32.0L maintains active product status with Littelfuse Inc., ensuring ongoing availability, technical support, and supply chain continuity compared to the obsolete GT-BCMN2000L.
Frequently Asked Questions (FAQ)
Q: Can the CG32.0L be used as a direct replacement for GT-BCMN2000L in existing designs?
A: Yes. The CG32.0L meets all specified electrical parameters (2000 V spark-over, 5000 A discharge current), mechanical configuration (2-pole through-hole), and compliance requirements (ROHS3, MSL 1) required for direct substitution.
Q: What is the difference in packaging between these components?
A: The GT-BCMN2000L is supplied without specified packaging designation, while the CG32.0L is supplied in Tray packaging with an Axial Cylinder package case. Both are through-hole mounted components suitable for PCB assembly.
Q: Why is the GT-BCMN2000L classified as obsolete?
A: The GT-BCMN2000L is no longer in active production by Lumex Opto/Components Inc. The CG32.0L from Littelfuse Inc. provides equivalent electrical and mechanical functionality with active product status and ongoing manufacturer support.
Q: Are there any compliance differences between the two components?
A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 1 (unlimited). Both are classified under EAR99 export control.
Q: What inventory status should be considered when selecting between these components?
A: The GT-BCMN2000L has 1086 pieces in stock as new original inventory. The CG32.0L has 1376 pieces in stock as new original inventory. Component selection should consider both availability and long-term supply continuity, with preference for active-status products.
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