Key Specifications

The UM50125/50129 ESD protection diode is designed to replace multilayer varistors (MLVs) in portable instrumentation, notebook computers, digital power meter, digital camera and communication systems. They feature large cross-sectional area junctions for conducting high transient currents, offer desirable electrical characteristics for board level protection, such as fast response time, lower operating voltage, lower clamping voltage and no device degradation when compared to MLVs. The UM50125/50129 ESD protection diode protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The UM50125 is available in SOD523 package and the UM50129 is available in DFN2 1.0×0.6 (compatible with SOD923 & SOD882) packages, both with working voltages of 12 volt. It gives designer the flexibility to protect one unidirectional line in applications where arrays are not practical. Additionally, it may be “sprinkled” around the board in applications where board space is at a premium. It may be used to meet the ESD immunity requirements of IEC 61000-4-2, ±30kV air, ±30kV contact discharge.

 

- Transient Protection for Data Lines to

  IEC 61000-4-2 (ESD): ±30kV (Air), ±30kV (Contact)

- Small Package for Use in Portable Electronics

- Suitable Replacement for MLV’s in ESD Protection Applications

- Protect One I/O or Power Line

- Low Clamping Voltage

- Stand-off Voltage: 12V

- Low Leakage Current

- Solid-State Silicon-Avalanche Technology

 

- Cell Phone Handsets and Accessories

- Notebooks, Desktops and Servers

- Portable Instrumentation and Accessories

- Digital Power Meter

- Digital Cameras

- Communication Systems

 

(T=25°C, Device for 12.0V Reverse Stand-off Voltage)

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Reverse Stand-Off Voltage	VRWM				12	V
Reverse Breakdown Voltage	VBR	IT=1mA	16		18	V
Reverse Leakage Current	IR	VRWM=12V, T=25°C			0.5	μA
Clamping Voltage	VC	IPP=5.9A, tP=8/20μs			23	V
Junction Capacitance	CJ	VR=0V, f=1MHz		20	30	pF

  

Part Number	Working Voltage	Packaging Type	Channel	Marking Code	Shipping Qty
UM50129	12.0V	DFN2 1.0×0.6	1	EA	5000pcs/7Inch Tape & Reel