BA479G, BA479S
www.vishay.com
Vishay Semiconductors
RF PIN Diodes - Single in DO-35 (DO-204AH)
FEATURES
• Wide frequency range 10 MHz to 1 GHz
• AEC-Q101 qualified
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
APPLICATIONS
• Current controlled
attenuators
HF
resistance
in
adjustable
DESIGN SUPPORT TOOLS
click logo to get started
Models
Available
MECHANICAL DATA
Case:
DO-35 (DO-204AH)
Weight:
approx. 125 mg
Cathode band color:
black
Packaging codes/options:
TR/10K per 13" reel (52 mm tape), 50K/box
TAP/10K per ammopack (52 mm tape), 50K/box
PARTS TABLE
PART
BA479G
BA479S
TYPE
DIFFERENTIATION
V
R
= 30 V, z
r
> 5 k
V
R
= 30 V, z
r
> 9 k
ORDERING CODE
BA479G-TR or BA479G-TAP
BA479S-TR or BA479S-TAP
TYPE MARKING
BA479G
BA479S
CIRCUIT
CONFIGURATION
Single
Single
REMARKS
Tape and reel/ammopack
Tape and reel/ammopack
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PART
Reverse voltage
Forward continuous current
TEST CONDITION
SYMBOL
V
R
I
F
VALUE
30
50
UNIT
V
mA
THERMAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Thermal resistance junction to ambient air
Junction temperature
Storage temperature range
TEST CONDITION
l = 4 mm, T
L
= constant
SYMBOL
R
thJA
T
j
T
stg
VALUE
350
125
-55 to +150
UNIT
K/W
°C
°C
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Forward voltage
Reverse current
Diode capacitance
Differential forward resistance
Reverse impedance
Minority carrier lifetime
TEST CONDITION
I
F
= 20 mA
V
R
= 30 V
f = 100 MHz, V
R
= 0 V
f = 100 MHz, I
F
= 1.5 mA
f = 100 MHz, V
R
= 0 V
I
F
= 10 mA, I
R
= 10 mA
BA479G
BA479S
PART
SYMBOL
V
F
I
R
C
D
r
f
z
r
z
r
5
9
4
MIN.
TYP.
MAX.
1
0.05
0.5
50
UNIT
V
μA
pF
k
k
μs
Rev. 1.9, 27-Apr-17
Document Number: 85527
1
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
BA479G, BA479S
www.vishay.com
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
100
Vishay Semiconductors
a - Typical Cross Modulation Distortion (dB)
20
Π
- Circuit
with
10 dB Attenuation
V
0
= 40 dBmV
f
1
= 100 MHz
unmodulated
- 20
I
F
- Forward Current (mA)
10
0
T
amb
= 25 °C
1
- 40
- 60
- 80
0
20
40
60
80
f
2
, modulated
with
200 kHz, m = 100 % (MHz)
Scattering Limit
0.1
0.01
0
95 9735
0.4
0.8
1.2
1.6
2.0
V
F
- Forward
Voltage
(V)
95 9733
Fig. 1 -
Forward Current vs. Forward Voltage
Fig. 3 - Typ. Cross Modulation Distortion vs. Frequency f
2
r
f
- Differential Forward Resistance (Ω)
10 000
1000
100
f > 20 MHz
T
j
= 25 °C
10
1
0.001
0.01
0.1
1
10
95 9734
I
F
- Forward Current (mA)
Fig. 2 -
Differential Forward Resistance vs. Forward Current
PACKAGE DIMENSIONS
in millimeters (inches):
DO-35 (DO-204AH)
Cathode Identification
Ø 0.6 max. [0.024]
Ø 0.4 min. [0.015]
1.7 [0.067]
26 min. [1.024]
3.9 max. [0.154]
3.1 min. [0.120]
26 min. [1.024]
Rev. 6 - Date: 19. December 2011
Document no.: SB-V-3906.04-031(4)
94 9366
Rev. 1.9, 27-Apr-17
Document Number: 85527
2
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
1.3 [0.050]
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
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or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
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