DS9503P+T&R by Analog Devices

ESD Protection Diode with Resistors


This DS9503 is an ESD protection device for 1-Wire® interfaces. In contrast to the DS9502, the DS9503 includes two 5Ω isolation resistors on chip. Although 5Ω are negligible during communication, they represent a high impedance relative to the conducting diode during an ESD event. Thus, the diode absorbs the energy while the resistors further isolate and protect the circuit at the other side of the package. If used with circuits that already have a strong ESD-protection at their I/O port, the ESD protection level is raised to more than 27kV (IEC 801-2 Reference model). In case of abnormal ESD hits beyond its maximum ratings the DS9503 will eventually fail "short" thus preventing further damage. During normal operation the DS9503 behaves like a Zener diode. When the voltage exceeds the trigger voltage, the I/V characteristic of the device will "snapback" allowing the same or higher amount of current to flow, but at a significantly lower voltage. As long as a minimum current or voltage is maintained, the device will stay in the "snapback mode." If the voltage or the current falls below the holding voltage or holding current, the device will abruptly change to its normal mode and conduct only a small leakage current.

Where to Buy

Prices starting from US$0.71

Distributor Stock
Logo for Farnell
Farnell
from US$0.71
36,967
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$0.72
37,067
in stock
Buy Now
Logo for element14
element14
from US$0.71
36,967
in stock
Buy Now

Features

Zener characteristic with voltage snap-back to protect against ESD hits
High avalanche voltage, low leakage and low capacitance avoid signal attenuation
Compatible to all 5V logic families
Space-saving, low-inductance TSOC surface-mount package
On-chip 5 ohm resistors for isolation at both anode and cathode terminals
Industrial temperature range

Specifications

Protection Method 7.5V Snap-Back Zener with Two 5 Ohm Resistors
# Channels 1
C (pF) 100
Package/Pins TSOC/6
BudgetaryPrice (See Notes) 0.46


DS9503P+T&R Fuses & Circuit Protection by Analog Devices

DIODE ESD PROTECTION 11.05V 40PF

Status: Unknown
Series: DS950 Series
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Clamping Voltage Vc Max -
Diode Case Style TSOC
No. of Pins 6Pins
Operating Voltage 11.05V
Power Dissipation Pd -
Product Range DS950 Series
Automotive Qualification Standard -
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Diode, Esd Protection, 11.05V, 40Pf | Newark Electronics
DIODE, ESD PROTECTION, 11.05V, 40PF | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS9503P+T&R ?

Additional datasheets, footprints and schematics for DS9503P+T&R are listed on our Part Details page. You can also find images and similar parts to DS9503P+T&R on this page.

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Is the DS9503P+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS9503P+T&R have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for DS9503P+T&R .

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