1N5259B datasheet(3/7 Pages) VISHAY

3 / 7 page

1N5221B to 1N5267B

Document Number 85588

Rev. 1.7, 23-Mar-07

Vishay Semiconductors

www.vishay.com

1) Based on dc-measurement at thermal equilibrium; lead length = 9.5 (3/8 "); thermal resistance of heat sink = 30 K/W

Typical Characteristics

Tamb = 25 °C, unless otherwise specified

1N5265B

185

1400

+ 0.097

0.1

1N5266B

1.8

230

1600

+ 0.097

0.1

1N5267B

1.7

270

1700

+ 0.098

0.1

Partnumber

Nominal Zener

Voltage1)

Test Current

Maximum

Dynamic

Impedance1)

Maximum

Dynamic

Impedance

Typical

Temperature of

Coeffizient

Maximum Reverse Leakage

Current

at IZT, VZ

IZT

ZZT at IZT

ZZK at IZK =

0.25 mA

at IZT

α (%/K)

µA

Figure 1. Thermal Resistance vs. Lead Length

Figure 2. Typical Change of Working Voltage under Operating

Conditions at Tamb = 25 °C

95 9611

100

200

300

400

500

I - Lead Length (mm)

L = constant

100

1000

Z - Z-Voltage (V)

95 9598

j = 25 °C

Z = 5 mA

Figure 3. Typical Change of Working Voltage vs.

Junction Temperature

Figure 4. Total Power Dissipation vs. Ambient Temperature

- 60

120

180

0.8

0.9

1.0

1.1

1.2

1.3

j - Junction Temperature (°C)

240

95 9599

Ztn = VZt/VZ (25 °C)

VZ = 10 x 10

-4/K

8 x 10-4/K

2 x 10-4/K

6 x 10-4/K

4 x 10-4/K

- 4 x 10-4/K

- 2 x 10-4/K

120

160

100

300

400

500

600

amb - Ambient Temperature (°C)

200

95 9602

200

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