1N4727A~1N4764A

SILICON PLANAR POWER ZENER DIODES

for use in stabilizing and clipping circuits with high power rating.

Absolute Maximum Ratings (Ta = 25 OC)

Parameter Symbol Value Unit Power Dissipation at Tamb = 25OC Ptot Junction Temperature Storage Temperature Range

1)

1

1)

W

O

Tj 200 C

TS - 65 to + 200

O

C

Valid provided that leads at a distance of 8mm from case are kept at ambient temperature.

Characteristics at Tamb = 25 OC

Parameter

Thermal Resistance Junction to Ambient Air Forward Voltage at IF = 200mA

1)

Symbol Min. Max. Unit RthA VF

- 170 1) K/W - 1.2 V Valid provided that leads at a distance of 8mm from case are kept at ambient temperature.

SEMTECH ELECTRONICS LTD.

(Subsidiary of Sino-Tech International Holdings Limited, a company

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

® Dated : 20/02/2006

1N4727A...1N4764A

Zener Voltage Range 3)

Maximum Zener Impedance 1)

Reverse Leakage Maximum

Surge current 4)

Current regulator

current 2) IR at VR at TA = 25 OC

VZ lZT rZJT rZJK at IZK

V mA Ω Ω mA µA V IR mA IZM mA

1N4727A 2.85…3.15 83 10 400 1 150 1 1375 275 1N4728A 3.13…3.47 76 10 400 1 150 1 1375 275 1N4729A 3.42…3.78 69 10 400 1 100 1 1260 252 1N4730A 3.7…4.1 64 9 400 1 100 1 1190 234 1N4731A 4.08…4.52 58 9 400 1 50 1 1070 217 1N4732A 4.46…4.94 53 8 500 1 10 1 970 193 1N4733A 4.84…5.36 49 7 550 1 10 1 890 178 1N4734A 5.32…5.88 45 5 600 1 10 2 810 162 1N4735A 5.89…6.51 41 2 700 1 10 3 730 146 1N4736A 6.46…7.14 37 3.5 700 1 10 4 660 133 1N4737A 7.12…7.88 34 4 700 0.5 10 5 605 121 1N4738A 7.79…8.61 31 4.5 700 0.5 10 6 550 110 1N4739A 8.64…9.56 28 5 700 0.5 10 7 500 100 1N4740A 9.5…10.5 25 7 700 0.2510 7.6 454 91 1N4741A 10.45…11.55 23 8 700 0.255 8.4 414 83 1N4742A 11.4…12.6 21 9 700 0.255 9.1 380 76 1N4743A 12.35…13.65 19 10 700 0.255 9.9 344 69 1N4744A 14.25…15.75 17 14 700 0.255 11.4 304 61 1N4745A 15.2…16.8 15.5 16 700 0.255 12.2 285 57 1N4746A 17.1…18.9 14 20 750 0.255 13.7 250 50 1N4747A 19…21 12.5 22 750 0.255 15.2 225 45 1N4748A 20.9…23.1 11.5 23 750 0.255 16.7 205 41 1N4749A 22.8…25.2 10.5 25 750 0.255 18.2 190 38 1N4750A 25.65…28.35 9.5 35 750 0.255 20.6 170 34 1N4751A 28.5…31.5 8.5 40 10000.255 22.8 150 30 1N4752A 31.35…34.65 7.5 45 10000.255 25.1 135 27 1N4753A 34.2…37.8 7 50 10000.255 27.4 125 25 1N4754A 37.05…40.95 6.5 60 10000.255 29.7 115 23 1N4755A 40.85…45.15 6 70 15000.255 32.7 110 22 1N4756A 44.65…49.35 5.5 80 15000.255 35.8 95 19 1N4757A 48.45…53.55 5 95 15000.255 38.8 90 18 1N4758A 53.2…58.8 4.5 110 20000.255 42.6 80 16 1N4759A 58.9…65.1 4 125 20000.255 47.1 70 14 1N4760A 64.6…71.4 3.7 150 20000.255 51.7 65 13 1N4761A 71.25…78.75 3.3 175 20000.255 56 60 12 1N4762A 77.9…86.1 3 200 30000.255 62.2 55 11 1N4763A 86.45…95.55 2.8 250 30000.255 69.2 50 10 1N4764A 95…105 2.5 350 30000.255 76 45 9 1)

The Zener Impedance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener Current (IZT or IZK) is superimposed on IZT or IZK. Zener Impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. 2)

Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. 3)

Measured under thermal equilibrium and DC test conditions. 4)

The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current IZT. 5)

Tested with pulses tp = 20 ms.

Type

SEMTECH ELECTRONICS LTD.

(Subsidiary of Sino-Tech International Holdings Limited, a company

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

® Dated : 20/02/2006

1N4727A...1N4764A Iz IN4743IN4744Breakdowm characteristicsTj=constant(pulsed)mA100IN4730IN4729IN...oTj=25 CIN4727IN4731IN4732IN473380706050403020100012IN4728IN4734IN4735IN473690IN4737IN4738IN4739IN47403456Vz78910IN47411112 Iz mA50IN4746IN4747IN4748IN4749 IN...oTj=25 CIN4742IN474540IN4750IN4751IN475230IN4753IN4754IN4755IN4757IN476120IN4759IN4760 IN4758 IN4756IN4762IN4763100010203040506070Vz8090IN4764100110120

SEMTECH ELECTRONICS LTD.

(Subsidiary of Sino-Tech International Holdings Limited, a company

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

® Dated : 20/02/2006

1N4727A...1N4764A

Cj, Diode Capacitance (pF)100VR=0VVR=2VVR=5VVR=20VVR=30Vf=1MHzTA=25°C1.0250 Pd. Total Power Dissipation (W)0.80.6RJA Thermal Resistance Junction to Ambient (°C/W)2001500.41000.250000100200051015202530 TA, Ambient TemperatureFig. 1 Power Dissipation vs Ambient Temperature I, Lead Length (mm)Fig. 2 Typical Thermal Resistance vs. Lead LengthDifferential Zener Impedance ( )Ω Iz=1mA2mA5mA10mA20mA1 10001000100101010102030405060110100 Vz, Zener Voltage (V)Fig. 3 Junction Capacitance vs Zener Voltage Vz, Zener Voltage (V)Fig. 4 Typical Zener Impedance vs. Zener Voltage

SEMTECH ELECTRONICS LTD.

(Subsidiary of Sino-Tech International Holdings Limited, a company

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

® Dated : 20/02/2006