What is the SS34 used for?

It is commonly used in power management, DC-DC converters, and polarity protection circuits where low forward voltage drop is required.

What are the key specifications of the SS34?

It features a 40V maximum reverse voltage, 3A average forward current, and a maximum forward voltage drop of 0.55V at 3A.

What should engineers review before using the SS34?

Engineers should verify the thermal resistance (RθJA = 70°C/W) and ensure the PCB copper pad areas are sufficient for heat dissipation.

What is the sourcing status of the SS34?

The SS34 is an active component with high availability in the market, making it a low-risk choice for new designs.

SS34 Datasheet, Alternatives & Specs | Microdiode Semiconductor (Shenzhen) Co., Ltd.

AI summary

The MDD SS34 is a reliable 40V, 3A Schottky barrier rectifier in an SMA package, ideal for high-efficiency power management and general-purpose rectification.

Best for

Power supplies
DC-DC conversion
Battery charging circuits

Avoid if

High-temperature environments exceeding 125°C
Applications requiring ultra-low leakage current

Check before use

Thermal dissipation requirements
Peak surge current limits

Key specifications

Max Reverse Voltage: 40 V
Max Forward Current: 3 A
Forward Voltage: 0.55 V
Package: SMA (DO-214AC)

Compliance & Environment

RoHS: ROHS3 Compliant
REACH: REACH Unaffected
MSL: 1 (Unlimited)
ECCN: EAR99
HTSUS: 8542.39.0001

Application

Power ManagementConsumer Electronics

Datasheet

a1c880cb812c8cde1a909f19b1d39da5_2210101800_ZHIDE-SS34_C5161898.pdf

800 KB

Datasheet AI

CAD Models

EDA symbol, PCB footprint, and 3D model for this component. Supported tools include Altium, KiCad, Eagle, and more.

EDA Symbol

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PCB Footprint

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3D Model

STEP file for mechanical design

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Alternative components

Part	Details	Match
SS34AYangzhou Yangjie Electronic Technology Co.,Ltd	A potential pin-compatible alternative with the same 40V/3A rating and SMA package. Verify forward voltage.	Needs validation

Design and risk insights

Questions & answers

The SS34 is a surface-mount Schottky barrier rectifier designed for high-efficiency, low-power-loss applications.

SS36MDD	Offers a higher voltage rating (60V) in the same SMA package, but has a higher forward voltage (Vf).	Needs validation
SS56MDD	An electrical upgrade with higher 60V/5A ratings in the same SMA package. Check thermal performance.	Needs validation
SS34BMDD	Functionally equivalent with a 40V/3A rating, but in a different (SMB) package requiring a board redesign.	Needs validation

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the SS34?+×

What is the SS34 used for?+×

What are the key specifications of the SS34?+×

What should engineers review before using the SS34?+×

What is the sourcing status of the SS34?+×