SMAJ85A-TR STMicroelectronics, SMAJ85A-TR Datasheet

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SMAJ85A-TR

Manufacturer Part Number
SMAJ85A-TR
Description
Manufacturer
STMicroelectronics
Datasheet

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Part Number:
SMAJ85A-TR
Manufacturer:
STMicroe
Quantity:
88 000
FEATURES
DESCRIPTION
The SMAJ series are TRANSIL
specifically for protecting sensitive equipment
against transient overvoltages. The SMA package
allows save spacing on high density printed circuit
boards.
Transil diodes provide high overvoltage protection
by clamping action. Their instantaneous response
to transient overvoltages makes them particularly
suited to protect voltage sensitive devices such
as MOS Technology and low voltage supplied
IC’s.
ABSOLUTE MAXIMUM RATINGS (T
Note 1 : For a surge greater than the maximum values, the diode will fail in short-circuit.
THERMAL RESISTANCES
September 1998 Ed: 5A
From 5V to 188V.
PEAK PULSE POWER : 400 W (10/1000 s)
STAND OFF VOLTAGE RANGE :
UNI AND BIDIRECTIONAL TYPES
LOW CLAMPING FACTOR
FAST RESPONSE TIME
JEDEC REGISTERED PACKAGE OUTLINE
Symbol
Symbol
R
R
I
P
T
th (j-a)
FSM
th (j-l)
T
T
P
stg
PP
L
j
®
Peak pulse power dissipation (see note 1)
Power dissipation on infinite heatsink
Non repetitive surge peak forward
current for unidirectional types
Storage temperature range
Maximum junction temperature
Maximum lead temperature for soldering during 10 s.
Junction to leads
Junction to ambient on printed circuit on recommended pad
layout
TM
diodes designed
amb
Parameter
Parameter
= 25°C)
Tj initial = T
T
tp = 10ms
Tj initial = T
amb = 50
SMAJ188A-TR,CA-TR
SMAJ5.0A-TR,CA-TR
(JEDEC D0214 AC)
C
amb
amb
SMA
- 65 to + 175
Value
Value
400
150
260
120
3.3
40
30
TRANSIL
Unit
Unit
C/W
C/W
W
W
A
C
C
C
TM
1/5

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SMAJ85A-TR Summary of contents

Page 1

FEATURES PEAK PULSE POWER : 400 W (10/1000 s) STAND OFF VOLTAGE RANGE : From 5V to 188V. UNI AND BIDIRECTIONAL TYPES LOW CLAMPING FACTOR FAST RESPONSE TIME JEDEC REGISTERED PACKAGE OUTLINE DESCRIPTION The SMAJ series are TRANSIL specifically ...

Page 2

... SMAJ28A-TR CG SMAJ28CA-TR SMAJ30A-TR CK SMAJ30CA-TR SMAJ33A-TR CM SMAJ33CA-TR SMAJ40A-TR DUZ SMAJ40CA-TR SMAJ43A-TR EUA SMAJ43CA-TR SMAJ48A-TR CX SMAJ48CA-TR SMAJ58A-TR EUF SMAJ58CA-TR SMAJ70A-TR EUI SMAJ70CA-TR SMAJ85A-TR EUL SMAJ85CA-TR SMAJ100A-TR EUN SMAJ100CA-TR SMAJ130A-TR EUQ SMAJ130CA-TR SMAJ154A-TR EUT SMAJ154CA-TR SMAJ170A-TR SR SMAJ170CA-TR SMAJ188A-TR EUV SMAJ188CA- 100 PULSE WAVEFORM 10/1000 s ...

Page 3

Fig 1: Peak power dissipation versus initial junction temperature. Ppp[Tj initial]/Ppp[Tj initial=25°C] 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Tj initial(°C) 0 100 Fig 3: Clamping voltage versus peak pulse current (Tj ...

Page 4

SMAJxxxA-TR, CA-TR Fig 5: Peak forward voltage drop versus peak forward current (typical values). I (A) FM 10.00 1.00 Tj=125°C Tj=25°C 0. 0.01 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 Fig 7: Thermal resistance ...

Page 5

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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