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1

REV.02 20110725

DATA SHEET

U F1AS THRU UF1MS

SURFACE MOUNT REVERSE VOLTAGE - 50 to 1000 Volts

ULTRA FAST RECTIFIERS FORWARD CURRENT - 1.0 Ampere

FEATURES

• • Glass passivated chip

• • Ultra fast switching for high efficiency

• • For surface mounted applications

• • Low forward voltage drop and high current capability

• • Low reverse leakage current

• • Plastic material has UL flammability classification 94V-0

High temperature soldering : 260

• •

• • Pb free product at available : 99% Sn above meet RoHS environment

substance directive request

MECHANICAL DATA

• • Case : Molded plastic

• • Polarity : Indicated by cathode band

• • Weight :0.01 grams

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25

• • ambient temperature unless otherwise specified.

Single phase, half wave, 60Hz, resistive or inductive load.

For capacitive load, derate current by 20%

CHARACTERISTICS

SYMBOL

UF1AS

UF1BS

UF1DS

UF1GS

UF1JS

UF1KS

UF1MS

UNIT

Maximum Recurrent Peak Reverse V oltage

50

100

200

400

600

800

1000

V

Maximum RMS Voltage

35

70

140

280

420

560

700

V

Maximum DC Blocking Voltage

50

100

200

400

600

800

1000

V

Maximum Average For ward

Rectified Current

@TL =75

1.0

A

Peak Forward Surge Current

8.3ms single ha lf sine- wave

super imposed on rated load (JEDEC METHOD)

30

A

Maxi mum f orward Voltage at 1.0A DC

1.0

1.3

1.5

1.7

V

Maxi mum DC Reverse Cur rent

@TJ =25

at Rated DC Blocking Voltage

@TJ =100

5

100

uA

Maximum Reverse Recovery Time (Note 1)

50

75

ns

Typical Junction

Capacitance (Note 2)

20

10

pF

Typical Thermal Resistance (Note 3 )

R

θJL

30

Operating Temperature Range

-55 to +150

Storage Temperature Range

-55 to +150

2.Measured at 1.0MHz and applied reverse voltage of 4.0V DC.

3.Thermal Resistance junction to Lead.

SOD-123S

0.014(0.35)

MIN

0.112(2.85)

0.047(1.20)

0.100(2.55)

MAX

0.152(3.85)

0.140(3.55)

Unit:inch(mm)

MARKING CODE

U1

U2

U3

U4

U5

U6

U7

: Halogen Free

: Pb Free

SEMICONDUCTOR

°C

°C

°C/W

°C

°C

°C