onsemi 400V 1A, Silicon Junction Diode, 2-Pin DO-41 UF4004

RS Stock No.:
Mfr. Prt No.:
ON Semiconductor

Technical Reference

Legislation and Compliance

RoHS Certificate of Compliance

RS Components
RoHS Certificate of Compliance

EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.

Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.

RS definition of RoHS Compliance:

  • The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
  • and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering

The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:

PBB (Polybrominated Biphenyls)0.1%
PBDE ( Polybrominated Diphenyl Ethers)0.1%
Hexavalent Chromium0.1%
DEHP (Bis (2-Ethylhexl) phthalate)0.1%
BBP (Benzyl butyl phthalate)0.1%
DBP (Dibutyl phthalate)0.1%
DIBP (Diisobutyl phthalate)0.1%

The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".

RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.

Compliant Product Details
RS stock number 7599421
Product description onsemi 400V 1A, Silicon Junction Diode, 2-Pin DO-41 UF4004
Manufacturer / Brand ON Semiconductor
Manufacturer part number UF4004

RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK

Statement of Conformity

RS Components
Statement of Conformity

This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.

Compliant Product Details
RS stock number 7599421
Product description onsemi 400V 1A, Silicon Junction Diode, 2-Pin DO-41 UF4004
Manufacturer / Brand ON Semiconductor
Manufacturer part number UF4004

The foregoing information relates to product sold on, or after, the date shown below.


Date Apr 24, 2024

RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132

Product Details

ON Semi UF4001-UF4007 Fast Rectifiers

The ON Semiconductor UF4001 to UF4007 series are ultra-fast rectifiers within a DO-41 (DO-240AL) plastic package. These 1A glass-passivated junction rectifiers are reliable, general purpose components which can be used for a wide variety of applications.

Features & Benefits:
Low forward voltage drop
High surge current capability
High current capability

What is a glass-passivated junction rectifier?
These devices feature a layer of passivation glass around the diode. A glass-passivated rectifier often enables higher reverse-voltage resistance and can sometimes reduce leakage.

What is the operating junction temperature?
-65°C to +150°C

What are their maximum repetitive reverse voltages?
UF4001 - 50V
UF4002 - 100V
UF4003 - 200V
UF4004 - 400V
UF4005 - 600V
UF4006 - 800V
UF4007 - 1000V


Attribute Value
Brand ON Semiconductor
Peak Reverse Repetitive Voltage 400 V
Number of Elements per Chip 1
Mounting Type Through Hole
Diameter 2.72 mm
Package Type DO-41
Peak Non-Repetitive Forward Surge Current 30 A
Rectifier Type Fast Recovery
Diode Type Silicon Junction
Pin Count 2
Diode Configuration Single
Maximum Forward Voltage Drop 1 V
Maximum Continuous Forward Current 1 A
Diode Technology Silicon Junction
Peak Reverse Recovery Time 50 ns
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