High-speed Square Body Fuses

PROSEMI High-speed Square Body Fuses protect devices from over currents that may cause damage to equipment. High speed fuses are reliable, quick reactors tha can redece the amount of short circuit current.

Ideal for applications in power supplies, telecommunications, automotive electronics, and industrial systems, the PROSEMI High-Speed Fuse is designed to handle high inrush currents and protect delicate components without sacrificing performance. Its high breaking capacity and stable operation under extreme conditions make it an essential choice for designs requiring fast, reliable overcurrent protection.

Available in a range of current ratings and configurations, the PROSEMI High-Speed Fuse offers both versatility and superior protection, ensuring your circuits stay safe and operational in demanding environments.

Download Product Files Contact Us For More Info

Features And Benefits

Designed to IEC 60269-4 & UL 248-13
Wide range of ampere ratings
Halogen free, lead free and RoHS compliant
Excellent cycling capability
Low I²t and peak let-through currents
Low watts loss

Product Application

Variable speed drives
Power rectifiers
DC power supplies
Uninterruptible Power Supplies (UPS)
Industrial Power
Power Battery Packs

Model	Interrupting Rating	Voltage Rating (V)	Ampere Rating (A)	Dimension (mm)	Power loss (W)	I²t (A² Sec) Pre-arcing	I²t (A² Sec) Total	Automotive
E5SD-250A-TA	500Vdc@50kA L/R: 2ms	500VDC	250	49x36x24mm	5.5	15200	45600	Yes
E5SD-300A-TA	500Vdc@50kA L/R: 2ms	500VDC	300	49x36x24mm	7.1	20500	67500	Yes
E5SD-350A-TA	500Vdc@50kA L/R: 2ms	500VDC	350	49x36x24mm	7.85	32600	107580	Yes
E5SD-400A-TA	500Vdc@50kA L/R: 2ms	500VDC	400	49x36x24mm	9.8	42250	148000	Yes
HMSD50-450A-T	500Vdc@50kA	500VDC	450	49x36.5x31.5mm	23			Yes
HMSD50-500A-T	500Vdc@50kA	500VDC	500	49x36.5x31.5mm	24.4			Yes
HMSB50-450A-T	500Vdc@20kA	500VDC	450	55x43x47mm	<15			Yes
HMSB50-500A-T	500Vdc@20kA	500VDC	500	55x43x47mm	<18			Yes
HMSB50-630A-T	500Vdc@20kA	500VDC	630	55x43x47mm	<22			Yes
HMSB50-700A-T	500Vdc@20kA	500VDC	700	55x43x47mm	<27			Yes
HMSB75-500A-T	750Vdc@50kA	750VDC	500	55x43x47mm	<20	35000	180000	Yes
HMSB75-550A-T	750Vdc@50kA	750VDC	550	55x43x47mm	<23	49400	238000	Yes
HMSB75-630A-T	750Vdc@50kA	750VDC	630	55x43x47mm	<25	61000	295000	Yes
E7SD-200A-TA	750Vdc @ 20kA 750Vdc@50kA *	750VDC	200	57x36x24mm	33	7560	39300	Yes
E7SD-250A-TA	750Vdc @ 20kA 750Vdc@50kA *	750VDC	250	57x36x24mm	33	7560	39300	Yes
E8SD-150A-TA	800Vdc @ 20kA 800Vdc@50kA *	800VDC	150	57x36x24mm	32	2100	11550	Yes
E8SD-200A-TA	800Vdc @ 20kA 800Vdc@50kA *	800VDC	200	57x36x24mm	40	4100	23300	Yes
E8SD-250A-TA	800Vdc @ 20kA 800Vdc@50kA *	800VDC	250	57x36x24mm	48	8900	50700	Yes
E8SD-315A-TA	800Vdc @ 20kA 800Vdc@50kA *	800VDC	315	57x36x24mm	60	12500	73000	Yes
E8SD-350A-TA	800Vdc @ 20kA 800Vdc@50kA *	800VDC	350	57x36x24mm	65	18500	115000	Yes
E8SD-400A-TA	800Vdc @ 20kA 750Vdc @50kA*	800VDC	400	57x36x24mm	72	26500	172000	Yes
H8SA-100A-TA	800Vdc@50kA	800VDC	100	57x20x25mm	21	990	5120	Yes
H8SA-125A-TA	800Vdc@50kA	800VDC	125	57x20x25mm	23	1650	8910	Yes
H8SA-150A-TA	800Vdc@50kA	800VDC	150	57x20x25mm	25	2750	16500	Yes

PROSEMI TECHNOLOGY

Prosemi Technology, as a leading company in the field of precision current sensing components, is dedicated to providing customers with high-performance and high-reliability solutions. Our precision alloy current-sensing resistors, including SMD chip resistors and shunt resistors, are designed for a variety of applications, helping your products achieve accurate current detection and efficient energy management.

Relevant Cases

Related Categories