SGS Thomson Microelectronics BZW50-82B, BZW50-47, BZW50-39B, BZW50-39, BZW50-33B Datasheet

®

BZW50-10,B/180,B

TRANSIL

FEATURES

PEAK PULSE POWER : 5000 W (10/1000µs)

■

STAND-OFF VOLTAGE RANGE :

■

From 10V to 180V

UNI AND BIDIRECTIONAL TYPES

■

LOW CLAMPING FACTOR

■

FAST RESPONSE TIME

■

UL RECOGNIZED

■

DESCRIPTION

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

amb

= 25°C)

Symbol Parameter Value Unit

R6

TM

P

I

FSM

T

T

PP

P

stg

T

L

Peak pulse power dissipation (see note 1) Tj initial = T
Power dissipation on infinite heatsink T
Non repetitive surge peak forward current

for unidirectional types
Storage temperature range

Maximum junction temperature

j

Maximum lead temperature for soldering during 10s at 5mm

= 75°C

amb

tp = 10ms
Tj initial = T

amb

amb

5000 W

6.5 W

500 A

-65to+175
175

230 °C

from case

Note 1 :For a surge greater than the maximum values, the diode will fail in short-circuit.

THERMAL RESISTANCES

Symbol Parameter Value Unit

R

th (j-l)

R

th (j-a)

February 2003- Ed : 4A

Junction to leads
Junction to ambient on printed circuit. L

lead

=10mm

15 °C/W
65 °C/W

°C
°C

1/5

BZW50-10,B/180,B

ELECTRICAL CHARACTERISTICS (T

Symbol Parameter

V

V
V

I

I

αT

RM
BR

CL

RM

PP

V

Stand-off voltage
Breakdown voltage

Clamping voltage

Leakage current @ V
Peak pulse current
Voltage temperature coefficient
Forward voltage drop

F

Types IRM@V

RM

amb

RM

= 25°C)

VBR@I

R

VVCLV

VCL@I

BR

PP

I

I

F

V

RM

I

RM

I

PP

VCL@I

V

F

PP

αTC

max min max max max typ

note2 10/1000µs 8/20µs note3 note4

-4

Unidirectional Bidirectional µAVVmAVAVA10
BZW50-10 BZW50-10B
BZW50-12 BZW50-12B
BZW50-15 BZW50-15B
BZW50-18 BZW50-18B
BZW50-22 BZW50-22B
BZW50-27 BZW50-27B
BZW50-33 BZW50-33B
BZW50-39 BZW50-39B
BZW50-47 BZW50-47B
BZW50-56 BZW50-56B
BZW50-68 BZW50-68B
BZW50-82 BZW50-82B
BZW50-100 BZW50-100B
BZW50-120 BZW50-120B
BZW50-150 BZW50-150B
BZW50-180 BZW50-180B

5 10 11.1 1 18.8 266 23.4 2564 7.8 24000
5 12 13.3 1 22 227 28 2143 8.4 18500
5 15 16.6 1 26.9 186 35 1714 8.8 13500
5 18 20 1 32.2 155 41.5 1446 9.2 11500
5 22 24.4 1 39.4 127 51 1177 9.6 8500
5 27 30 1 48.3 103 62 968 9.8 7000
5 33 36.6 1 59 85 76 789 10 5750
5 39 43.3 1 69.4 72 90 667 10.1 4800
5 47 52 1 83.2 60.1 108 556 10.3 4100
5 56 62.2 1 99.6 50 129 465 10.4 3400
5 68 75.6 1 121 41 157 382 10.5 3000
5 82 91 1 145 34 189 317 10.6 2600
5 100 111 1 179 28 228 263 10.7 2300
5 120 133 1 215 23 274 219 10.8 1900
5 150 166 1 269 19 343 175 10.8 1700
5 180 200 1 322 16 410 146 10.8 1500

/°C pF

V

%I

PP

100

50

0

Note 2 : Pulse test: tp<50ms.
Note 3 : ∆VBR= αT*(T
Note 4 : VR= 0 V, F = 1 MHz. For bidirectional types,

capacitance value is divided by 2.

10 s

PULSE WAVEFORM 10/1000 s

1000 s

- 25)*VBR(25°C)

amb

2/5

Fig. 1: Peak pulse power dissipation versus initial
junction temperature (printed circuit board).

t

Fig. 2 : Peak pulse power versus exponential pulse duration.

Pp (W)

p

1E7

1E6

1E5

1E4

1E3

1E2

0.001 0.01 0.1 1 10 100

BZW50-10,B/180,B

Tj initial = 25øC

tp (ms ) EXPO.

°

Fig. 3 : Clamping voltage versus peak pulse current.

Exponential waveform t

=20µs________

p

= 1 ms—————-

t

p

= 10 ms...............

t

p

Note : The curves of the figure 3 are specified for a junction temperature of 25°C before surge.
The given results may be extrapolated for other junction temperatures by using the following formula :
∆V

= αT* (T

BR

-25) * VBR(25°C).

amb

For intermediate voltages, extrapolate the given results.

3/5

BZW50-10,B/180,B

Fig. 4a : Capacitance versus reverse applied

voltage for unidirectional types (typical values).

Fig. 5 : Peak forward voltage drop versus peak
forward current (typical values for unidirectional
types).

Note : Multiply by 2 for units with VBR> 220V.

Fig. 4b : Capacitance versus reverse applied

voltage for bidirectional types (typical values).

Fig. 6 : Transient thermal impedance junc­tion-ambient versus pulse duration (For FR4 PC
Board with L

= 10mm).

lead

Fig. 7 : Relative variation of leakage current
versus junction temperature.

4/5

ORDER CODE

5000W

BZW50-10,B/180,B

BZW 50 10 B RL-

PACKAGING:
' ' = Ammopack tape
'RL' = Tape & reel

STAND-OFFVOLTAGE

MARKING : Logo, Date Code, Type Code, Cathode Band (for unidirectional types only).

PACKAGE MECHANICAL DATA

R6 (Plastic)

B

∅D

∅C

AB

REF.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 8.6 9.1 0.338 0.358
B 25.4 1

∅ C 8.6 9.1 0.338 0.358
∅ D 1.2 1.3 0.047 0.051

No suffix: unidirectional

DIMENSIONS

BIDIRECTIONAL

Packaging : standard packaging is tape and reel.

Weight = 2.048 g.

Informationfurnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of
useof such information nor for any infringement of patents or other rights of third parties which may result from its use. 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.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written
approval of STMicroelectronics.

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© 2003 STMicroelectronics - Printed in Italy - All rights reserved.

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