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SDM03U40-7 SDM03U40-7 is a 30V 30mA surface mount Schottky barrier diode from Diodes Incorporated. It features low forward voltage drop and low capacitance.
Mfr Part #:

SDM03U40-7

Available from 5 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
SDM03U40-7 is a 30V 30mA surface mount Schottky barrier diode from Diodes Incorporated. It features low forward voltage drop and low capacitance.
Total Stock: 84,986 pcs
$ Price Range: $0.05 - $0.21

SDM03U40-7 Available from 5 distributors

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Non-Authorised

SDM03U40-7 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Capacitance @ Vr, F
Current
IO (Nominal)
Marking Code
Mounting Type
Non-Repetitive Peak Forward Surge Current
Operating Temperature
Packaging / Shipping
Peak Reverse Voltage
Polarity
Power Dissipation
RMS Reverse Voltage
Reverse Breakdown Voltage
Reverse Current
Speed
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Technology
Terminal Finish
Thermal Resistance Junction-to-Ambient
VF (Typical/Maximum @ IF = 1 mA)
Voltage
Weight

SDM03U40-7 Description

Short technical summary and product information.

The SDM03U40-7 is a surface mount Schottky barrier diode manufactured by Diodes Incorporated. It is designed for low power rectification and signal switching applications. The device is rated for an average rectified current of 30 mA and a peak reverse voltage of 40 V. The DC reverse voltage is 30 V, and the RMS reverse voltage is 21 V.

 

Electrical characteristics include a typical forward voltage drop of 290 mV (maximum 370 mV) at 1 mA forward current, reverse leakage current of 0.5 µA maximum at 30 V, and typical total capacitance of 2 pF at 1 V and 1 MHz. The diode can handle a non-repetitive peak forward surge current of 200 mA for 8.3 ms. Power dissipation is 150 mW with a thermal resistance of 667 °C/W junction-to-ambient on standard FR-4 PCB.

 

The device is packaged in a SOD-523 (SC-79) surface mount package, making it suitable for compact designs. It features matte tin terminals, a cathode band polarity indicator, and marking code LK. The operating and storage temperature range is -40°C to +125°C. The part is RoHS3 compliant and MSL Level 1 per J-STD-020A.

SDM03U40-7 Quick Information

Product Type: Schottky Diode
Canonical Name: SDM03U40-7 Schottky Diode 30V 30mA SOD-523
Subcategory: Small Signal Schottky Diode

SDM03U40-7 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1 Unlimited (per J-STD-020A)
REACH Status: REACH Unaffected

SDM03U40-7 Estimated Pricing

Qty Low High
1+ $0.21 $0.21
10+ $0.13 $0.13
100+ $0.08 $0.08
500+ $0.06 $0.06
1,000+ $0.05 $0.05
3,000+ $0.05 $0.05

Estimated market price range - modelled values for guidance only, not live distributor offers.

SDM03U40-7 Features

  • Low forward voltage drop of 290 mV typical.
  • Low capacitance of 2 pF at 1V.
  • Rated for 30 mA average rectified current.
  • Surface mount SOD-523 package.
  • Operates from -40°C to +125°C.

SDM03U40-7 Applications

  • Ideal for low logic level applications.
  • Used in portable battery-powered devices.
  • Suitable for high frequency rectification.
  • Common in DC-DC converter circuits.

SDM03U40-7 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage rating of the SDM03U40-7?

The peak reverse voltage is 40 V and the DC reverse voltage is 30 V.

What is the average rectified current rating?

30 mA.

What is the forward voltage drop at 1 mA?

Typical 290 mV, maximum 370 mV at 1 mA.

What package is the SDM03U40-7 available in?

SOD-523 (SC-79) surface mount package.

What is the reverse leakage current at 30V?

Maximum 0.5 µA at 30 V.

What is the total capacitance of the diode?

Typical 2 pF at 1 V and 1 MHz.

What is the operating temperature range?

-40°C to +125°C.

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