ZM4757中文资料

♦These diodes are also available in DO-41 case with the type designation 1N4728 … 1N4764.

MECHANICAL DATA

Case:MELF Glass Case Weight:approx. 0.25 g

MAXIMUM RATINGS

Ratings at 25°C ambient temperature unless otherwise specified.

Dimensions are in inches and (millimeters)

Characteristics at Tamb = 25 °C

SYMBOL

MIN.

TYP .

MAX.

UNIT

Thermal Resistance R thJA ––170(1)°C/W Junction to Ambient Air Forward Voltage V F

–

–

1.2

Volts

at I F = 200 mA

NOTES:

(1) Valid provided that electrodes are kept at ambient temperature

SYMBOL VALUE UNIT

Zener Current (see Table “Characteristics”)Power Dissipation at T amb = 25°C P tot 1.0(1)Watts Junction Temperature T j 150°C Storage Temperature Range

T S

– 65 to +150

°C

12/16/98

ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified.

Type Nominal

Zener

voltage(3)

at

I ZT

V Z(V)

Test

current

I ZT(mA)

Maximum Zener impedance(1)Maximum

reverse leakage current

Z ZT

at I ZT

(Ω)

Z ZK

(Ω)

at

I ZK

(mA)

I R

(µA)

at V R

(V)

Surge

current

at

T A= 25°C

I R(mA)

Maximum

regulator

current(2)

I ZM(mA)

ZM4728 3.37610400 1.0100 1.01380276 ZM4729 3.66910400 1.0100 1.01260252 ZM4730 3.9649400 1.050 1.01190234 ZM4731 4.3589400 1.010 1.01070217 ZM4732 4.7538500 1.010 1.0970193 ZM4733 5.1497550 1.010 1.0890178 ZM4734 5.6455600 1.010 2.0810162 ZM4735 6.2412700 1.010 3.0730146 ZM4736 6.837 3.5700 1.010 4.0660133 ZM47377.534 4.07000.510 5.0605121 ZM47388.231 4.57000.510 6.0550110 ZM47399.128 5.07000.5107.0500100 ZM4740102577000.25107.645491 ZM4741112387000.2558.441483 ZM4742122197000.2559.138076 ZM47431319107000.2559.934469 ZM47441517147000.25511.430461 ZM47451615.5167000.25512.228557 ZM47461814207500.25513.725050 ZM47472012.5227500.25515.222545 ZM47482211.5237500.25516.720541 ZM47492410.5257500.25518.219038 ZM4750279.5357500.25520.617034 ZM4751308.54010000.25522.815030 ZM4752337.54510000.25525.113527 ZM4753367.05010000.25527.412525 ZM475439 6.56010000.25529.711523 ZM475543 6.07015000.25532.711022 ZM475647 5.58015000.25535.89519 ZM475751 5.09515000.25538.89018 ZM475856 4.511020000.25542.68016 ZM475962 4.012520000.25547.17014 ZM476068 3.715020000.25551.76513 ZM476175 3.317520000.25556.06012 ZM476282 3.020030000.25562.25511 ZM476391 2.825030000.25569.25010 ZM4764100 2.535030000.25576.0459

NOTES:

(1) The Zener impedance is derived from the 1KH Z AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current (I ZT or I ZK)

is superimposed on I ZT or I ZK. 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 electrodes at a distance of 10mm from case are kept at ambient temperature

(3) Measured under thermal equilibrium and DC test conditions