# SUMMARY:

Device: Rectifier Diode (UM1B – UM10B series)

Key Features:

️· Voltage Ratings: Repetitive Peak Reverse Voltage from 100V to 1000V.
️· Current Ratings: Average Rectified Current of 0.8A.
️· Package: Plastic surface-mounted, 4-lead.
️· Applications: General purpose rectification.

Electrical Characteristics (Typical Values - per Series):

Parameter	UM1B	UM2B	UM4B	UM6B	UM8B	UM10B	Units
VRRM (Peak Reverse Voltage)	100V	200V	400V	600V	800V	1000V	V
VRMS (RMS Voltage)	70V	140V	280V	420V	560V	700V	V
IO (Average Current)	0.8A	0.8A	0.8A	0.8A	0.8A	0.8A	A
IFSM (Peak Surge Current)	25A	25A	25A	25A	25A	25A	A
VF (Forward Voltage) @ 0.4A	1.0V	1.0V	1.0V	1.0V	1.0V	1.0V	V
VF @ 0.8A	1.1V	1.1V	1.1V	1.1V	1.1V	1.1V	V
IR (Reverse Current) @ 25°C	3μA	3μA	3μA	3μA	3μA	3μA	μA
CJ (Junction Capacitance)	13pF	13pF	13pF	13pF	13pF	13pF	pF

Marking: The part number (UM1B, UM2B, etc.) will be marked on the device.

Dimensions: Refer to package outline drawing (included in full datasheet).



Note: This is a summary. Consult the full datasheet for complete specifications and other important information.