NXP Semiconductors
Quadruple bidirectional ESD transient
voltage suppressor
THERMAL CHARACTERISTICS
Product data sheet
BZA408B
SYMBOL
R th j-s
PARAMETER
thermal resistance from junction to soldering point
CONDITIONS
one or more diodes loaded
VALUE
340
UNIT
K/W
ELECTRICAL CHARACTERISTICS
T j = 25 ° C unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
Per diode (pin 2 and / or 5 connected to ground)
V RWM
working reverse voltage
?
5
V
V R
V ZSM
I R
reverse voltage
non-repetitive peak reverse voltage
reverse current
I test = 5 mA
t p = 1 ms; I ZSM = 2 A
V R = V RWM
5.5
?
?
?
10
100
V
V
nA
C d
diode capacitance
see Fig.3
V R = 0; f = 1 MHz
V R = 5 V; f = 1 MHz
?
?
75
55
pF
pF
α ch (p to p)
pin to pin channel separation
note 1; see Fig.4
70
?
dB
Note
1. α ch (p to p) is measured as follows: a ? 7 dBs sinewave of 400 Hz is connected to e.g. pin 6 and a ? 7 dBs sinewave of
1 kHz to pin 1. The 1 kHz signal of pin 1 is measured on pin 6 by means of a spectrum analyser with an input
impedance of 1 M ? . So α ch (p to p) equals the 1 kHz level on pin 1 minus the 1 kHz level on pin 6. For the 400 Hz
signal the same measurement is done in the opposite way.
1998 Oct 15
3
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