The Jandorf MDA 20A Time Delay Fuse 2 pk is a dependable protection solution for electronic circuits that experience brief startup surges. This two‑pack is built for real‑world reliability, combining a ceramic tube with durable plated brass endcaps to handle inrush without compromising circuit safety. UL listed for quality assurance, these fuses are purposefully designed for precision protection in demanding environments.
Designed to tolerate momentary overloads while still interrupting harmful overcurrents, the time‑delay design minimizes nuisance trips in power supplies, motor controllers, and control circuits. If your project includes equipment that starts with a surge or draws a brief higher current, these fuses keep the system running smoothly while still delivering reliable protection when it’s truly needed.
Key features that set this fuse apart
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Current rating: 20 A
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Voltage rating: 250 V
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Time-delay (slow‑blow) operation: tolerates temporary surges without tripping
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Tube construction: Ceramic for robust heat resistance and durability
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Endcap construction: Plated brass for secure, low‑resistance connections
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Size: 1/4 inch diameter, 1-1/4 inch length
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Package: 2‑pack in carded packaging for easy stocking and replacement
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Brand lineage: Jandorf, Sub Brand MDA
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UL listed: Yes (quality and safety verified) • CSA listed: No
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Tamper proof: No
Practical use cases include power supplies, enclosure control panels, and electronic assemblies that require reliable overcurrent protection with surge tolerance. The combination of ceramic tube and brass endcaps provides durable performance in environments where temperature and current spikes are a consideration, while the compact 1/4" x 1-1/4" form factor fits a wide range of fuse holders.
How it compares to standard fast‑acting fuses? Time‑delay fuses like the Jandorf MDA variant protect devices during short, high‑current spikes rather than immediately interrupting at the first hint of overload. This distinction helps prevent unnecessary downtime and component stress in equipment that experiences inrush currents, power‑on surges, or brief startup loads.
Ideal for technicians stocking circuits that require dependable, replaceable protection, this 2‑pack ensures you have ready replacements on hand. When selecting a fuse for your project, verify that the application requires a 20 A, 250 V, time‑delay solution and that the device’s mounting and holder specifications align with the 1/4" x 1-1/4" footprint.
