Transient Thermal Resistance
Pulse Width
0.1ms
Transiant Thermal Resistance ( C/W)
20
60
100
140
180
1ms 10ms 100ms 10s 100s1s
160
120
80
40
0
D=1(D.C)
D=0.2
D=0.1
D=0.05
D=0.5
t1
tp
D=t1
tp
Single Pulse
Derating curve
T
-Temperature (°C)
Ma
x
Pow
e
r
D
is
sipa
t
i
on
-
(W
att
s
)
-40
0.50
0.25
1.0
0.75
0
40 80
120 200160
Am
bi
ent t
e
m
pe
rature
Zetex plc.
Fields New Road, Chadderton, Oldham, OL9-8NP, United Kingdom.
Telephone: (44)161 622 4422 (Sales), (44)161 622 4444 (General Enquiries)
Fax: (44)161 622 4420
Zetex GmbH Zetex Inc. Zetex (Asia) Ltd. These are supported by
Streitfeldstraße 19 47 Mall Drive, Unit 4 3510 Metroplaza, Tower 2 agents and distributors in
D-81673 München Commack NY 11725 Hing Fong Road, major countries world-wide
Germany USA Kwai Fong, Hong Kong
Zetex plc 1997
Telefon: (49) 89 45 49 49 0 Telephone: (516) 543-7100 Telephone:(852) 26100 611
Fax: (49) 89 45 49 49 49 Fax: (516) 864-7630 Fax: (852) 24250 494 Internet:http://www.zetex.com
This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied
or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating to the products or
services concerned. The Company reserves the right to alter without notice the specification, design, price or conditions of supply of
any product or service.
*ZETEX ZTX1151 Spice model Last revision 12/12/96
*
.MODEL ZTX1151 PNP IS =1.7e-12 NF =1.004 ISE=1.02e-13 NE =1.55 BF =562
+ VAF=26.01 IKF=3.5 NR =.97 ISC= 1.5e-13 NC =1.3
+ BR =38 VAR=2.41 IKR=0.3 RE =25.37e-3 RB =250e-3
+ RC =25e-3 CJE=440e-12 CJC=160e-12 VJC=1.058
+ MJC= 0.5678 TF =0.8e-9 TR =55.5e-9
*
*
©1995 ZETEX PLC
The copyright in this model and the design embodied belong to Zetex PLC (“Zetex”). It is
supplied free of charge by Zetex for the purpose of research and design and may be used or
copied intact (including this notice) for that purpose only. All other rights are reserved. The
model is believed accurate but no condition or warranty as to its merchantability or fitness for
purpose is given and no liability in respect of any use is accepted by Zetex PLC, its
distributors or agents.
ZTX1151A
