SEMTECH ELECTRONICS LTD.

(Subsidiary of Semtech International Holdings Limited, a company

listed on the Hong Kong Stock Exchange, Stock Code: 724)

®

Dated : 05/11/2005

RD2.0E~RD200E

- 40

- 32

- 24

- 16

- 8

24

0.06

Vz - ZENER VOLTAGE - V

0

4

812

16

- 0.02

- 0.06

- 0.08

- 0.04

0.02

0

0.04

20

24 28 32 36

40 44

RD2.0E to RD39E

mV/ C

8

0

16

ZENER VOLTAGE TEMPERATURE

COEFFICIENT vs.ZENER VOLTAGE

TYP.

0.1

0.08

%/ C

32

40

0.09

60

Vz - ZENER VOLTAGE - V

0

40

50

0.07

0.06

0.05

0

70

80

90

110

100

120

RD34E to RD120E

mV/ C

ZENER VOLTAGE TEMPERATURE

COEFFICIENT vs.ZENER VOLTAGE

0.1

TYP.

%/ C

100

0

20

40

60

80

120

200

0.11

130

0

120

0.08

0.06

0.07

0.09

0

0.10

Vz - ZENER VOLTAGE - V

150

140

160 170 180 190

RD130E to RD200E

mV/ C

ZENER VOLTAGE TEMPERATURE

COEFFICIENT vs.ZENER VOLTAGE

0.1

0.12

TYP.

%/ C

0

140

100

120

160

180

200

220

t - Pulse Width - s

SURGE REVERSE POWER RATINGS

1

1

100

10

10

Ta=25 C

1000

1m

100

10m

100m