www.DataSheet4U.com
® ®
. . . . . Engineered solutions for the transient environment
PMMAD SERIES
STEERING DIODE (RAI...
www.DataSheet4U.com
® ®
. . . . . Engineered solutions for the transient environment
PMMAD SERIES
STEERING DIODE (RAIL CLAMP) ARRA Y
APPLICATIONS
q q q q q High Frequency Data Lines RS-232 & RS-422 Interface Networks 10 Base T Networks LAN/ WAN Computer I/O Ports
IEC 1000-4 COMPATIBLE
SO-14 PACKAGE
FEATURES
q q q q q q IEC 1000-4-2, -4 & -5 Industry Requirements Designed for Rail Clamp Protection ESD Protection > 40 kilovolts Working
Voltage > 50 Volts UL 94V-0 Flammability Classification Available in Standard SO-14 Surface Mount Package
RAIL CLAMP CIRCUIT
+
I/O Port
GND or (-)
DESCRIPTION
This series is designed with discrete diodes for complete isolation. Each diode can be individually tested according to the electrical characteristics. For transient
voltage protection, two diodes are configured in series with the anode of one connect to the cathode of the other diode (See Rail Clamp Circuit).
SEE DIAGRAMS ON FOLLOWING PAGE.
MAXIMUM RATINGS @ 25°C Ambient Temperature (unless specified)
IPP - Peak Pulse Current - % of IPP
FIGURE 1 PULSE WAVE FORM
tf Peak Value IPP 100 TEST WAVEFORM PARAMETERS tf = 8 µs td = 20µs
Continuous Power Dissipation Operating & Storage Temperature Continuous Forward Current
500mW -65° to +150 °C 400mA
MECHANICAL CHARACTERISTICS
Package Packaging Approximate Weight Device Markings Miscellaneous Molded SO-14 Surface Mount Package Tube or 16mm Tape per EIA 481 0.15 grams Logo & Part Number
50
e-t td = t IPP/ 2
0
Pin No. 1 Indicated by...