Jandorf S506 3.15A Time Delay Fuse (2 pack) is a purpose-built solution for electronics that demand dependable protection with a tolerance for brief inrush currents. Designed for reliability in power supplies, motor-start circuits, and other demanding electronic environments, this 5x20 mm glass-tube fuse delivers stable performance where fast fuses would nuisance-trip.
Key specifications at a glance
- Amperage: 3.15 A
- Voltage rating: 250 V
- Type: Time Delay (slow-blow) fuse
- Tube construction: Glass
- Endcaps: Plated brass for durable, low-resistance connections
- Size: 5 mm diameter × 20 mm length (standard 5x20mm form factor)
- Packaging: Carded, 2 pieces per pack
- Brand: Jandorf; Sub Brand: S506
- Certifications: UL Listed, CSA Listed
- Tamper proof: No
Why choose a time-delay fuse? Unlike fast-acting fuses, time-delay (slow-blow) fuses withstand short, high-current surges that occur during normal startup or transient events without interrupting the circuit. This makes them ideal for:
- Power supplies and DC-DC converters that experience brief inrush currents
- Motor and solenoid circuits where startup surge is common
- Electronic devices with capacitive charging phases or transformers
- LED drivers and consumer electronics that may briefly exceed operating current
What makes this Jandorf S506 fuse unique is its thoughtful combination of form, function, and compliance. The 5x20mm glass fuse tube provides excellent visibility of the element, while plated brass endcaps ensure solid contact and durability in retail and field installations. With UL and CSA listings, you get a product that meets mainstream safety standards, giving you confidence in both performance and protection.
Practical usage tips
- Choose the 3.15 A rating when your circuit’s continuous load sits near but below 3 amps, and occasional surges should not trip the fuse. The time-delay characteristic helps handle brief spikes without nuisance trips.
- Verify the circuit’s voltage is within the 250 V rating and confirm the 5x20 mm form factor fits your fuse holder or fuse board.
- Keep the two-fack packaging handy for field replacements or service work, ensuring you have a ready spare that matches the exact spec.
The Jandorf S506 3.15A Time Delay Fuse 2 pk is the pragmatic, performance-focused choice for hobbyists, technicians, and electronics professionals who value reliable protection with inrush tolerance. Whether upgrading an aging power supply or stocking up for routine repairs, this 2-pack delivers consistent results, clear visibility, and certified safety you can trust.
