5.2x20mm PCB‑Mount Fuse Holder |16A High‑Current Industrial Fuse Block
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PTF/15S pcb mount fuse holder for 5x20mm Fuse Clip
Dimension Drawing
PCB mount fuse holder for 5.2x20mm cartridge fuses is reinforced through‑hole soldered high‑current circuit‑protection component for industrial PCBA. This fuse block adopts glass‑fiber reinforced PBT+GF30 base with PC upper cover, both UL94 V0 flame‑retardant grade, paired with durable tin‑copper alloy terminals. Specially optimized for wave‑soldering process, withstand short‑time high soldering temperature of 230‑240℃ for 3 seconds. Wide operating temperature covers‑40 ℃ to +130 ℃, well‑suited for harsh industrial PCB environment. Widely applied in high‑power power supplies, industrial control boards, power conversion equipment and general‑purpose electronic PCBA.
Core Product Features
- Compatible with standard 5.2 × 20 mm glass / ceramic tubular cartridge fuses for high‑current PCB‑level circuit‑protection
- Electrical rating:16A, 500V(250V) AC, delivers stable high‑current carrying performance for industrial PCB circuits
- Reinforced insulating housing: Base PBT+GF30, upper cover PC, UL94 V0 flame‑retardant grade, enhanced mechanical strength and heat‑resistance
- Tin‑copper alloy terminals, good conductivity and anti‑oxidation for long‑term reliable conduction
- Special wave‑soldering resistance: withstand soldering temperature 230‑240℃ for 3 seconds, fits mass‑production SMT / wave‑soldering workflows
- Wide operating temperature‑40 ℃ ~ +130 ℃, adapts to low‑temperature and high‑temperature industrial working conditions
- Insulation resistance＞100 MΩ(500VDC, 1min); DC withstand voltage up to1500V DC for enhanced dielectric safety
- Through‑hole PCB soldering mounting design, standard pin‑footprint for printed‑circuit‑board layout
- RoHS‑compliant construction, meets global industrial‑electronics environmental‑protection requirements
Different from ordinary unreinforced plastic PCB fuse holders, this PBT+GF30 glass‑fiber reinforced base improves mechanical strength and thermal deformation resistance. Optimized solder‑resistance property avoids housing melting/deformation during wave‑soldering mass‑production, it is preferred solution for high‑current industrial power‑supply PCBA projects.
Full Technical Specifications
| Specification Item | Parameter Value |
|---|---|
| Model | PTF(15S) |
| Compatible Fuse | 5.2 × 20 mm glass / ceramic tubular cartridge fuse |
| Rated Current | 16A |
| Rated Voltage | 500V(250V) AC |
| Housing Material | Base:PBT+GF30; Upper cover:PC, UL94 V0 flame‑retardant |
| Terminal Material | Tin‑copper alloy |
| Soldering Resistance | 230‑240℃ for 3 seconds |
| Operating Temperature Range | ‑40 ℃ ~ +130 ℃ |
| Insulation Resistance | ＞10 MΩ (500 VDC, 1 min) |
| Withstand Voltage | 1500V DC |
| Mounting Method | Through‑hole PCB soldering mount |
Note: Original datasheet does not provide contact resistance parameter.
Selection & Application Guidance
When selecting this reinforced PCB‑mount fuse holder for 5.2×20 mm fuses, confirm fuse dimension, system AC voltage and continuous operating‑current first. Select matching‑rating 5.2x20mm tubular fuses and reserve a 1.25‑1.5× safety margin to avoid over‑heating under continuous‑load. For wave‑soldering mass‑production PCBA, strictly control soldering temperature & dwell‑time within 230‑240℃ /3s specification to prevent housing damage. This wide‑temp variant fits equipment working in low‑temperature or high‑temperature ambient environment. Follow official PCB dimension drawing for pad layout to guarantee soldering reliability and stable electrical performance.
Typical Application Scenarios
- High‑power switching power supplies and industrial power‑supply PCBA circuits
- Industrial control boards and automation equipment control‑circuit boards
- Power converter modules and energy‑storage auxiliary‑circuit boards
- Test instruments and high‑power laboratory power‑supply PCB
- Communication equipment high‑current power‑input protection circuits
- Medium‑power LED power‑drivers and industrial lighting control PCBA
Installation & Maintenance Instructions
1. Select correct‑rating 5.2 × 20 mm glass / ceramic tubular cartridge fuse according to circuit‑protection requirements.
2. Design PCB through‑hole pads strictly follow official dimension drawing to ensure soldering compatibility.
3. Complete wave‑soldering or manual‑soldering; strictly keep soldering condition within 230‑240℃ for max 3 seconds to avoid plastic housing thermal‑damage.
4. Insert tubular fuse fully into holder cavity for reliable electrical contact.
5. Do not operate beyond published rated voltage‑current limits to prevent insulation breakdown and safety hazards.
6. Cut‑off full power supply and discharge circuit before fuse replacement to prevent electric‑shock hazard.
7. Periodically inspect for loose fuse, terminal oxidation or heating signs; replace components promptly when anomalies are found.
Frequently Asked Questions
Q1: What fuse size fits this pcb fuse holder?
A1: It fits standard 5.2 × 20 mm glass and ceramic tubular cartridge fuses for high‑current industrial PCB‑level over‑current‑protection.
Q2: What are its electrical ratings?
A2: Rated 16A, 500V(250V) AC; 1500V DC withstand voltage, insulation resistance＞10 MΩ under 500VDC 1‑min test condition.
Q3: What is housing material feature?
A3: Base adopts glass‑fiber‑reinforced PBT+GF30, upper cover PC material, both UL94 V0 flame‑retardant grade for improved mechanical and thermal‑resistance performance.
Q4: What is soldering‑resistance and temperature range?
A4: Withstands soldering temperature of 230‑240℃ for 3 seconds; operating temperature‑40 ℃ ~ +130 ℃ for wide‑range industrial environment.
Q5: What terminal material is used?
A5: Tin‑copper alloy terminals with good conductivity and anti‑oxidation for long‑term high‑current carrying.
Q6: What mounting style and typical‑applications?
A6: Through‑hole PCB soldering mount; mainly for high‑power power‑supply, industrial control board, power converter and other industrial PCBA over‑current‑protection.
