WSM

Epoxy SMD Chip Resistor produced with the Electron-beam welding craft which is performed under vacuum conditions. Normally,Ni or Sn plating on the surface of red copper terminal  helps with soldering and oxidation protection.Coating with heat-resistant epoxy resin,the Epoxy SMD Chip Resistor have an excellent thermal resistance.Long-term stability is a very important parameter of Epoxy SMD Chip Resistor as tight tolerance is meaningless without stability.

Datasheet	MODEL	Image	POWER ( W )	RESISTANCE VALUE RANGE ( mΩ )	TCR （ppm/℃)	TOLERANCE ( % )	Size(mm)
	WSM0805		1W	1~5mΩ	±150	±1%(F) ±5%(J)	L: 2.03mm±0.25 W: 1.27mm±0.25 T:0.4mm±0.15
	WSM1206		2W	1~25mΩ	±25 ±50 ±150	±0.5%(D) ±1%(F) ±5%(J)	L: 3.2mm±0.2 W: 1.65mm±0.2 T: 0.8mm±0.15
	WSM2010		2W	0.5~200mΩ	±25 ±50 ±150	±0.5%(D) ±1%(F) ±5%(J)	L: 5.1mm±0.2 W: 2.5mm±0.2 T: 0.8mm±0.15
	WSM2512		3W	0.5～50mΩ	±25 ±50 ±150	±0.5%(D) ±1%(F) ±5%(J)	L: 6.4mm±0.2 W: 3.2mm±0.2 T: 0.8mm±0.15
	WSM2725		4W	0.2mΩ-3mΩ	±25  ±100	±0.5%(D) ±1%(F) ±5%(J)	L: 6.8mm±0.25 W: 6.5mm±0.25 T: 1.2mm±0.15
	WSM2728		4W	2mΩ-50mΩ	±25 ±50	±0.5%(D) ±1%(F) ±5%(J)	L: 6.8mm±0.2 W: 7.2mm±0.2 T:1.0mm±0.15
	WSM2817		5W	1mΩ-50mΩ	±50 ±75	±0.5%(D) ±1%(F) ±5%(J)	L: 6.8mm±0.2 W: 7.2mm±0.2 T:1.0mm±0.15
	WSMB2512		2W	50mΩ-300mΩ	±50	±0.5%(D) ±1%(F) ±5%(J)	L: 6.4mm±0.2 W: 3.2mm±0.2 T: 0.8mm±0.15
	WSMB4527		4W/6W	1mΩ-300mΩ	±50 ±100	±0.5%(D) ±1%(F) ±5%(J)	L: 11.5mm±0.25 W: 6.6mm±0.25 T:1.0mm±0.15(1-50) T: 1.5mm±0.15(51-300)
	WSMP2512		3W	0.5mΩ-50mΩ	±25 ±50 ±150	±0.5%(D) ±1%(F) ±5%(J)	L:6.4±0.2 W:3.2±0.2 T：0.8±0.15
	WSMP2817		7W	1mΩ-5mΩ	±50	±0.5%(D) ±1%(F) ±5%(J)	L: 6.8mm±0.2 W: 7.2mm±0.2 T:1.0mm±0.15
	WSMP4527		9W	2mΩ-100mΩ	±50	±0.5%(D) ±1%(F) ±5%(J)	L: 11.5mm±0.5 W: 7.2mm±0.5 T: 2.0mm±0.15