Aviation Glass Cartridge Fuse BGDC 12X37 |
High-Visibility Overcurrent Protection for Critical Circuits
Product Overview
The YM Aviation Glass Cartridge Fuse BGDC 12X37 is a precision-engineered, fast-acting protection device designed for sensitive electronics and control circuits in aerospace, drone, and transportation systems. Featuring a durable glass tube that allows for immediate visual inspection of the fuse element, this 12mm x 37mm cartridge fuse provides reliable protection for circuits up to 150A. It is engineered to work in tandem with critical control components like PCB Signal Relays and Solid State Relays, safeguarding them from damaging overcurrent conditions. As part of YM's comprehensive protection lineup, which also includes robust Military Metal Relays, this fuse offers a transparent, maintenance-friendly solution for system integrators.
Core Advantage: Instant visual fault indication combined with military-grade reliability and precise, fast-acting trip characteristics to protect sensitive aviation and industrial electronics.
Technical Specifications
- Model: BGDC 12X37 (12mm Diameter x 37mm Length)
- Standard Current Ratings (In): 60A, 80A, 100A, 150A (Other ratings available on request)
- Construction:
- Body: High-strength, heat-resistant glass tube.
- End Caps: Brass or copper alloy, plated for optimal conductivity and corrosion resistance.
- Fuse Element: Precision-calibrated metal wire or ribbon sealed within an inert atmosphere.
- Electrical Characteristics:
- Voltage Rating: Typically rated for 32V DC or 250V AC systems, compatible with common aviation (28V DC) and industrial control voltages.
- Breaking Capacity: High interrupting rating suitable for protecting downstream Industrial Power Relays and control boards.
- Time-Current Characteristic: Fast-acting (F) type, designed to clear faults rapidly to protect sensitive components.
- Performance & Durability:
- Contact Resistance: Extremely low initial resistance ensures minimal voltage drop under normal load.
- Vibration & Shock Resistant: Constructed to maintain integrity in high-vibration environments common in aviation and rail.
- Temperature Range: Stable operation across a wide ambient temperature range.
Product Features & Advantages
- Instant Visual Status Check: The clear glass body allows maintenance personnel to instantly identify a blown fuse without instrumentation, dramatically reducing troubleshooting time.
- Military-Grade Construction: Designed and manufactured to meet the rigorous environmental and performance standards required for military and aerospace applications, complementing systems using our Military Metal Relays.
- Fast-Acting Protection: Precisely calibrated element provides rapid response to overcurrent events, limiting let-through energy and protecting delicate electronics like PCB Board Relays and avionics.
- High-Purity Element & Sealing: The fuse element is made from high-purity materials and sealed in a controlled atmosphere to prevent oxidation and ensure consistent performance over time.
- Robust End Caps: Solid brass end caps with precision knurling ensure excellent contact in standard fuse holders and resist deformation during installation.
- Wide Compatibility: The 12x37mm (AGU/AGC style) form factor is an industry standard, ensuring compatibility with a vast range of existing fuse holders and panels.
Our Manufacturing Advantage: YM leverages its 18+ years of precision electrical component manufacturing, including expertise in Metal Sealing for relays, to ensure the BGDC fuse's internal seal integrity and consistent calibration, batch after batch.
How to Select and Install the BGDC 12X37 Fuse
- Circuit Analysis: Determine the normal operating current, potential intrush currents (e.g., from motors or capacitive loads), and the system voltage of the circuit to be protected.
- Fuse Selection: Select a fuse with a current rating slightly above the normal continuous load (typically 125-135%), considering ambient temperature. Choose the fast-acting "F" characteristic for electronic protection.
- Holder Compatibility Check: Ensure the fuse holder or clip is designed for 12mm x 37mm glass cartridge fuses and can handle the selected current rating.
- Safe Installation: With power OFF, insert the fuse firmly into the holder, ensuring full contact at both ends. Avoid overtightening in screw-type holders.
- Verification & Labeling: After installation, label the circuit with the fuse rating. Power on the system and monitor initially for normal operation. The clear glass allows for easy post-installation visual verification.
Application Scenarios
The BGDC 12X37 fuse is ideal for protecting lower-current but critical circuits across demanding industries:
- Aircraft Avionics & Instrumentation: Protects power feeds to flight displays, communication radios, navigation systems, and sensor suites.
- Drone (UAV) Electronic Speed Controllers (ESCs) & Payloads: Safeguards the power input to flight controllers, gimbals, and camera systems from faults.
- Railway Passenger Car Systems: Used in protection circuits for interior lighting, passenger information displays, door control systems, and HVAC control units.
- Industrial Control Panels: Protects PLC power supplies, I/O modules, solenoid valves, and control circuits often populated with Automotive Relays or PCB Signal Relays.
- Telecommunications & Server Racks: Provides branch circuit protection for sensitive telecom equipment and data center hardware.
- New Energy Systems: Can be applied in the control and monitoring circuits of New Energy Relay panels for solar inverters or battery management systems.
Value for Buyers: Prevents costly damage to sensitive electronic components, enables rapid fault isolation and system restoration, reduces maintenance labor time through visual diagnostics, and ensures compliance with circuit protection standards in safety-critical applications.
Customization Options
YM offers tailored solutions to meet specific project needs for the BGDC 12X37 fuse:
- Custom Current Ratings: Precision calibration for non-standard current values within the size constraints.
- Time-Delay (Slow-Blow) Variants: For circuits with high intrush currents, such as those containing certain motors or transformers.
- Special End Cap Plating: Tin, silver, or gold plating to meet specific corrosion resistance or conductivity requirements.
- Labeling and Packaging: Custom printing on the glass body or end caps, and specialized packaging for automated handling
- Testing & Documentation: Provision of specific test reports, lot traceability, or compliance documentation for OEM integration.
Our extensive OEM/ODM experience, demonstrated in custom Flash Relay and Automotive Relay projects, ensures we can deliver a fuse solution tailored to your precise specifications.
Production & Quality Assurance Process
Every BGDC 12X37 fuse is manufactured through a controlled, multi-stage process:
- Element Fabrication & Calibration: The fuse element is precisely formed from calibrated wire/ribbon to achieve the exact current-time characteristic.
- Glass Tube Preparation: High-strength glass tubes are cut to exact length and cleaned.
- Assembly & Sealing: The element is attached to end caps, inserted into the glass tube, and the assembly is hermetically sealed in a controlled atmosphere—a process that benefits from our expertise in Metal Sealing Relay technology.
- Electrical Testing: 100% of fuses undergo resistance testing. Samples from each batch are subjected to rigorous high-current trip testing to verify time-current curves.
- Visual & Dimensional Inspection: Automated or manual inspection for glass integrity, end cap alignment, and overall dimensions.
- Final Marking & Packaging: Laser or ink marking of ratings, followed by anti-static and protective packaging.
This stringent end-to-end control guarantees the reliability expected from a YM component, whether it's a Solid State Relay or a protective fuse.
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