DISCRETE SEMICONDUCTORS
DATA SHEET
lfpage
M3D121
BAS85
Schottky barrier diode
Product specification
Supersedes data of 1996 Mar 20
1996 Oct 01
Philips Semiconductors
Product specification
Schottky barrier diode
FEATURES
•
Low forward voltage
•
High breakdown voltage
•
Guard ring protected
•
Hermetically-sealed small SMD
package.
APPLICATIONS
•
Ultra high-speed switching
•
Voltage clamping
•
Protection circuits
•
Blocking diodes.
Cathode indicated by a grey band.
MAM190
BAS85
DESCRIPTION
Planar Schottky barrier diode with an
integrated protection ring against
static discharges.
This surface mounted diode is
encapsulated in a hermetically sealed
SOD80C glass SMD package with
tin-plated metal discs at each end. It
is suitable for “automatic placement”
and as such it can withstand
immersion soldering.
handbook, halfpage
k
a
Fig.1 Simplified outline (SOD80C), pin configuration and symbol.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
V
R
I
F
I
F(AV)
I
FRM
I
FSM
T
stg
T
j
T
amb
Note
1. Refer to SOD80 standard mounting conditions.
PARAMETER
continuous reverse voltage
continuous forward current
average forward current
repetitive peak forward current
non-repetitive peak forward current
storage temperature
junction temperature
operating ambient temperature
V
RWM
= 25 V; a = 1.57;
δ
= 0.5;
note 1; Fig.2
t
p
≤
1 s;
δ ≤
0.5
t
p
= 10 ms
CONDITIONS
−
−
−
−
−
−65
−
−65
MIN.
MAX.
30
200
200
300
5
+150
125
+125
V
mA
mA
mA
A
°C
°C
°C
UNIT
1996 Oct 01
2
Philips Semiconductors
Product specification
Schottky barrier diode
ELECTRICAL CHARACTERISTICS
T
amb
= 25
°C
unless otherwise specified.
SYMBOL
V
F
PARAMETER
forward voltage
see Fig.3
I
F
= 0.1 mA
I
F
= 1 mA
I
F
= 10 mA
I
F
= 30 mA
I
F
= 100 mA
I
R
C
d
Note
1. Pulsed test: t
p
= 300
µs; δ
= 0.02.
THERMAL CHARACTERISTICS
SYMBOL
R
th j-a
Note
1. Refer to SOD80 standard mounting conditions.
PARAMETER
thermal resistance from junction to ambient
note 1
CONDITIONS
reverse current
diode capacitance
V
R
= 25 V; note 1; see Fig.4
f = 1 MHz; V
R
= 1 V; see Fig.5
240
320
400
500
800
2.3
10
CONDITIONS
MAX.
BAS85
UNIT
mV
mV
mV
mV
mV
µA
pF
VALUE
320
UNIT
K/W
1996 Oct 01
3
Philips Semiconductors
Product specification
Schottky barrier diode
GRAPHICAL DATA
MRA540
BAS85
MSA892
250
handbook, halfpage
I F(AV)
(mA)
200
10
3
handbook, halfpage
IF
(mA)
10
2
(1) (2) (3)
150
10
100
(1)
(2) (3)
1
50
0
0
50
100
Tamb ( C)
o
150
10
1
0
0.4
0.8
VF (V)
1.2
(1) T
amb
= 125
°C.
(2) T
amb
= 85
°C.
(3) T
amb
= 25
°C.
Fig.3
Fig.2 Derating curve.
Forward current as a function of forward
voltage; typical values.
MGC682
MGC681
10
5
handbook, halfpage
I
R
(nA)
10
4
handbook, halfpage
12
(1)
Cd
(pF)
10
3
(2)
10
2
8
10
4
1
(3)
10
−1
0
0
10
20
VR (V)
30
0
10
20
VR (V)
30
(1) T
amb
= 85
°C.
(2) T
amb
= 25
°C.
(3) T
amb
=
−40 °C.
f = 1 MHz.
Fig.4
Reverse current as a function of reverse
voltage; typical values.
Fig.5
Diode capacitance as a function of reverse
voltage; typical values.
1996 Oct 01
4
Philips Semiconductors
Product specification
Schottky barrier diode
PACKAGE OUTLINE
BAS85
handbook, full pagewidth
1.60
O 1.45
0.3
3.7
3.3
0.3
MBA390 - 2
Dimensions in mm.
Cathode indicated by a grey band.
Fig.6 SOD80C.
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
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.
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
1996 Oct 01
5
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