Datasheet BAT74 Datasheet (Philips)

DISCRETE SEMICONDUCTORS

DATA SH EET

M3D071

BAT74

Schottky barrier double diode

Product specification
Supersedes data of March 1991

1996 Mar 19

Philips Semiconductors Product specification

Schottky barrier double diode BAT74

FEATURES

• Low forward voltage

• Guard ring protected

• Small SMD package.

APPLICATIONS

• Ultra high-speed switching

• Voltage clamping

• Protection circuits

• Blocking diodes.

DESCRIPTION

Planar Schottky barrier double diode.
Two separate dies encapsulated in a
SOT143 small plastic SMD package.

PINNING

PIN DESCRIPTION

21

)

1

)

2

)

2

)

1

4

3

1

2

MAM194

1 cathode (k
2 cathode (k
3 anode (a
4 anode (a

handbook, halfpage

Marking code: L41.

43

Top view

Fig.1 Simplified outline (SOT143), pin configuration and symbol.

1996 Mar 19 2

Philips Semiconductors Product specification

Schottky barrier double diode BAT74

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

Per diode

V
I

F

I

FRM

I

FSM

P
T
T
T

R

tot
stg
j
amb

continuous reverse voltage
continuous forward current −

repetitive peak forward current tp≤ 1s;δ≤0.5
non-repetitive peak forward current tp< 10 ms 600 mA
total power dissipation
storage temperature
junction temperature
operating ambient temperature

Double diode operation

V

I

F

I

FRM

R

continuous reverse voltage

continuous forward current −
repetitive peak forward current tp≤ 1s;δ≤0.5

≤ 25 °C; see Fig.2

T

amb

series connection −

−

−

−

−65

−

−65

−

−

30 V
200 mA
300 mA

230 mW
+150 °C
125 °C
+125 °C

30 V
60 V

(1)

110

mA

200 mA

Note

1. If both diodes are in forward operation at the same moment, total device current is max. 110 mA. If one diode is in
reverse and the other in forward operation at the same moment, total device current is max. 200 mA.

1996 Mar 19 3

Philips Semiconductors Product specification

Schottky barrier double diode BAT74

ELECTRICAL CHARACTERISTICS

T

=25°C unless otherwise specified.

amb

SYMBOL PARAMETER CONDITIONS MAX. UNIT

Per diode

V

F

I

R

t

rr

C

d

forward voltage see Fig.3

= 0.1 mA

I

F

I

= 1 mA; note 1

F

I

=10mA

F

I

=30mA

F

I

= 100 mA

F

reverse current VR= 25 V; note 2; see Fig.4
reverse recovery time when switched from IF= 10 mA to

IR= 10 mA; RL= 100 Ω;
measured at IR= 1 mA; see Fig.6

diode capacitance f = 1 MHz; VR= 1 V; see Fig.5

240 mV
320 mV
400 mV
500 mV
800 mV
2

µA

5ns

10 pF

Notes

1. Temperature coefficient of forward voltage −0.6%/K.

2. Pulsed test: t

= 300µs; δ = 0.02.

p

THERMAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th j-a

thermal resistance from junction to ambient note 1 500 K/W

Note

1. Refer to SOT143 standard mounting conditions .

1996 Mar 19 4

Philips Semiconductors Product specification

Schottky barrier double diode BAT74

GRAPHICAL DATA

P

tot

(mW)

300

200

100

0

Fig.2 Power derating curve.

T

amb

o

( C)

MSA894

3

10

handbook, halfpage

I

F

(3)(2)(1)

MSA892

(mA)

2

10

10

= 125°C.
=85°C.
=25°C.

(3)(2)(1)

VF (V)

1.20.80.40

1

1

150750

10

(1) T
(2) T
(3) T

amb
amb
amb

Fig.3 Forward current as a function of forward

voltage; typical values.

MSA893

(1)

(2)

I

(µA)

3

10

R

2

10

10

1

1

10

0102030

(1) T
(2) T
(3) T

amb
amb
amb

= 125°C.
=85°C.
=25°C.

(3)

V (V)

R

Fig.4 Reverse current as a function of reverse

voltage; typical values.

15

C

d

MSA891

(pF)

10

5

0

0102030

f =1 MHz; T

amb

=25°C.

V (V)

R

Fig.5 Diode capacitance as a function of reverse

voltage; typical values.

1996 Mar 19 5

Philips Semiconductors Product specification

Schottky barrier double diode BAT74

andbook, halfpage

I

F

dI

F

dt

t

10%

Q

r

90%

I

R

t

f

MRC129 - 1

Fig.6 Reverse recovery definitions.

1996 Mar 19 6

Philips Semiconductors Product specification

Schottky barrier double diode BAT74

PACKAGE OUTLINE

handbook, full pagewidth

Dimensions in mm.

DEFINITIONS

10

max

3.0

0.150

30

max

0.090

0.1

max

max

o

o

10

0.88

0.75

0.60

o

1.1

max

2.8

1.9

43

1

2

0

0.1

TOP VIEW

0.48

1.7

0

0.1

B

A

1.4

1.2

M0.1 AB

2.5

max

0.2

MBC845

M

AB

Fig.7 SOT143.

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

1996 Mar 19 7