PCB Mount Fuse Socket | BLX-A 5x20mm 6.3A 250V AC/DC
BLX-A 5x20mm PCB mount fuse socket with PA66 UL94 V0 flame retardant housing & tin-plated brass contacts, 6.3A 250V AC/DC, through-hole design for circuit board overcurrent protection.
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The PCB mount fuse socket BLX-A series is a 5x20mm through-hole fuse base manufactured by EssFuse (Dongguan Gongfu Electronic). This PCB mount fuse socket adopts high-temperature flame retardant housing with tin-plated brass contacts, designed for reliable installation of 5x20mm cartridge fuses on printed circuit boards. With stable electrical performance and compact structure, this PCB mount fuse socket is widely used in power supply modules, industrial control boards and consumer electronic circuits.
Key Features of PCB Mount Fuse Socket BLX-A
- Compatible with standard 5x20mm cartridge fuses
- Rated voltage: 250V AC/DC; maximum current: 6.3A
- Housing material: PA66, UL-94 V0 flame retardant grade
- Contact material: Brass with tin plating for excellent conductivity
- Through-hole PCB mounting design for stable soldering connection
- Operating temperature range: -25℃ to +125℃
- Compact structure, suitable for dense circuit board layout
This 5x20mm fuse socket provides reliable electrical connection and easy fuse replacement for PCB-level overcurrent protection. Its flame retardant housing ensures safe operation in various electronic and industrial control scenarios.
Main Electrical Specifications
| Item | Parameter |
|---|---|
| Model | BLX-A PCB Fuse Holder |
| Compatible Fuse Size | 5 x 20mm cartridge fuse |
| Rated Voltage | 250V AC / 250V DC |
| Maximum Rated Current | 6.3A |
| Housing Material | PA66, UL-94 V0 flame retardant |
| Contact Material | Brass, tin-plated |
| Mounting Type | Through-hole PCB mount |
| Operating Temperature | -25 ℃ ~ +125 ℃ |
Mechanical Dimensions
| Dimension Item | Value (mm) | Tolerance |
|---|---|---|
| Total Length | 55.5 | ±1.0 |
| Pin Pitch | 22.3 | ±0.2 / ±0.5 |
| Body Width | 13.4 | ±0.3 |
| Pin Diameter | 1.31 | ±0.1 |
| Fuse Cavity Inner Diameter | 6.55 | ±0.2 |
| Body Height | 10.25 | ±0.2 / ±0.3 |
Application Scenarios of PCB Mount Fuse Socket
- Power supply modules and AC/DC adapter circuits
- Industrial control circuit boards and instrumentation
- Consumer electronics and household appliance control boards
- Communication equipment and network devices
- LED lighting driver circuits
- Automotive electronic control units
Installation & Usage Notes
1. Select the matching 5x20mm cartridge fuse according to circuit protection requirements before installation.
2. The socket is designed for through-hole soldering on PCB; ensure proper soldering quality for stable electrical connection.
3. Do not use the socket beyond its rated voltage and current range.
4. When replacing the fuse, disconnect the power supply first to avoid electric shock or circuit damage.
5. Store in a dry and dust-free environment to prevent contact oxidation.
Frequently Asked Questions
Q1: What size of fuse does this PCB mount fuse socket match?
A1: It is compatible with standard 5x20mm cartridge fuses.
Q2: What are the rated voltage and current of BLX-A fuse socket?
A2: Rated voltage is 250V AC/DC, maximum rated current is 6.3A.
Q3: What material is the socket housing made of?
A3: The housing is made of PA66 engineering plastic with UL-94 V0 flame retardant grade.
Q4: What is the contact material?
A4: The contacts are made of brass with tin plating for excellent electrical conductivity and corrosion resistance.
Q5: What is the operating temperature range?
A5: Normal operating temperature range is -25℃ to +125℃.
Q6: What mounting method does it use?
A6: It adopts through-hole PCB mounting design, suitable for wave soldering or manual soldering on printed circuit boards.
