Zetex plc.

Fields New Road, Chadderton, Oldham, OL9-8NP, United Kingdom.

Telephone: (44)161-627 5105 (Sales), (44)161-627 4963 (General Enquiries)

Facsimile: (44)161-627 5467

Zetex GmbH

Zetex Inc.

Zetex (Asia) Ltd.

These are supported by

Streitfeldstraße 19

87 Modular Avenue

3510 Metroplaza, Tower 2

agents and distributors in

D-81673 München

Commack NY11725

Hing Fong Road, Kwai Fong

major countries world-wide

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

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.

Transient Thermal Resistance

Pulse Width

0.1ms

20

60

100

140

180

1ms

10ms 100ms

10s

100s

1s

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)

-40

0.50

0.25

1.0

0.75

0

40

80

120

200

160

SPICE PARAMETERS

*ZETEX ZTX1051A Spice model Last revision 16/12/94

*

.MODEL ZTX1051A NPN IS=1.35E-12 NF=1.0 BF=600 IKF=5.0 VAF=120

+

ISE=0.6E-13 NE=1.25 NR=1.0 BR=150 IKR=3 VAR=15

+

ISC=1.0E-10 NC=1.7 RB=0.1 RE=0.023 RC=0.010

+

CJC=90.36E-12 CJE=547.5E-12 MJC=0.385 MJE=0.357

+

VJC=0.5 VJE=0.741 TF=600E-12 TR=8E-9

*

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.

NPN SILICON PLANAR MEDIUM POWER

HIGH GAIN TRANSISTOR

ISSUE 3 – FEBRUARY 95

FEATURES

* Very Low Saturation Voltage

*High Gain

* Inherently Low Noise

APPLICATIONS

* Emergency Lighting

* Low Noise Audio

ABSOLUTE MAXIMUM RATINGS.

PARAMETER

SYMBOL

VALUE

UNIT

Collector-Base Voltage

150

V

Collector-Emitter Voltage

40

V

Emitter-Base Voltage

5V

Peak Pulse Current

10

A

Continuous Collector Current

4A

Base Current

500

mA

1W

Operating and Storage Temperature

Range

-55 to +200

°C

ZTX1051A

C

B

E

E-Line

TO92 Compatible

ZTX1051A