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BAT18
Silicon planar diode
Rev. 02 -- 31 August 2004 Product data sheet
1. Product profile
1.1 General description
Planar high performance band-switching diode in a small rectangular SOT23 SMD plastic package.
1.2 Features
s s s s Continuous reverse voltage: max. 35 V Continuous forward current: max. 100 mA Low diode capacitance: max. 1.0 pF Low diode forward resistance: max. 0.7 .
1.3 Applications
s Band switching.
2. Pinning information
Table 1: Pin 1 2 3 Pinning Description anode not connected cathode
3
1 3
Simplified outline
Symbol
2
sym044
1
2
3. Ordering information
Table 2: Ordering information Package Name BAT18 Description plastic surface mounted package; 3 leads Version SOT23 Type number
Philips Semiconductors
BAT18
Silicon planar diode
4. Marking
Table 3: BAT18
[1] * = p: made in Hong Kong * = t: made in Malaysia * = W: made in China.
Marking Marking code [1] 10*
Type number
5. Limiting values
Table 4: Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VR IF Tstg Tj Parameter continuous reverse voltage continuous forward current storage temperature junction temperature Conditions Min -55 Max 35 100 +125 125 Unit V mA C C
6. Thermal characteristics
Table 5: Thermal characteristics Tj = 25 C unless otherwise specified. Symbol Rth(j-tp) Rth(j-a)
[1]
Parameter thermal resistance from junction to tie-point thermal resistance from junction to ambient
Conditions
[1]
Typ 330 500
Unit K/W K/W
Device mounted on a FR4 printed-circuit board.
7. Characteristics
Table 6: VF IR Electrical characteristics Conditions IF = 100 mA; see Figure 1 see Figure 2 VR = 20 V VR = 20 V; Tj = 60 C Cd rD diode capacitance VR = 20 V; f = 1 MHz; see Figure 3 diode forward resistance IF = 5 mA; f = 200 MHz; see Figure 4 0.8 0.5 100 1 1.0 0.7 nA A pF Min Typ Max Unit 1.2 V forward voltage reverse current Symbol Parameter
9397 750 13385
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 31 August 2004
2 of 7
Philips Semiconductors
BAT18
Silicon planar diode
100 IF (mA) 80
001aab165
(1)
(2)
(3)
105 IR (nA) 104
001aab166
(1)
103 60 102 40 10 20
(2)
1 10-1 0.7 1.1 VF (V) 1.5 0 40 80 120 Tj (C) 160
0 0.3
(1) Tj = 60 C; typical values. (2) Tj = 25 C; typical values. (3) Tj = 25 C; maximum values.
VR = 20 V. (1) maximum values. (2) typical values.
Fig 1. Forward current as a function of forward voltage.
001aab167
Fig 2. Reverse current as a function of junction temperature.
001aab168
1.5 Cd (pF) 1.3
2
rD ()
1.1 1 0.9
0.7
0.5 10-1
1
10 VR (V)
102
0 1 10 IF (mA) 102
f = 1 MHz; Tj = 25 C.
f = 200 MHz; Tj = 25 C.
Fig 3. Diode capacitance as a function of reverse voltage; typical values.
Fig 4. Diode forward resistance as a function of forward current; typical values.
9397 750 13385
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 31 August 2004
3 of 7
Philips Semiconductors
BAT18
Silicon planar diode
8. Package outline
Plastic surface mounted package; 3 leads SOT23
D
B
E
A
X
HE
vMA
3
Q A A1
1
e1 e bp
2
wMB detail X Lp
c
0
1 scale
2 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A 1.1 0.9 A1 max. 0.1 bp 0.48 0.38 c 0.15 0.09 D 3.0 2.8 E 1.4 1.2 e 1.9 e1 0.95 HE 2.5 2.1 Lp 0.45 0.15 Q 0.55 0.45 v 0.2 w 0.1
OUTLINE VERSION SOT23
REFERENCES IEC JEDEC TO-236AB EIAJ
EUROPEAN PROJECTION
ISSUE DATE 97-02-28 99-09-13
Fig 5. Package outline.
9397 750 13385 (c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 31 August 2004
4 of 7
Philips Semiconductors
BAT18
Silicon planar diode
9. Revision history
Table 7: BAT18_2 Modifications: Revision history Release date 20040831 Data sheet status Product data sheet Change notice Doc. number 9397 750 13385 Supersedes BAT18_1 Document ID
* *
The format of this data sheet has been redesigned to comply with the new presentation and information standard of Philips Semiconductors. Table 3: marking code changed. Product specification not applicable -
BAT18_1
19960313
9397 750 13385
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 31 August 2004
5 of 7
Philips Semiconductors
BAT18
Silicon planar diode
10. Data sheet status
Level I II Data sheet status [1] Objective data Preliminary data Product status [2] [3] Development Qualification Definition This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN).
III
Product data
Production
[1] [2] [3]
Please consult the most recently issued data sheet before initiating or completing a design. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
11. Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). 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 -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
12. Disclaimers
Life support -- 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 Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes in the products - including circuits, standard cells, and/or software - described or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
13. Contact information
For additional information, please visit: http://www.semiconductors.philips.com For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com
9397 750 13385
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 31 August 2004
6 of 7
Philips Semiconductors
BAT18
Silicon planar diode
14. Contents
1 1.1 1.2 1.3 2 3 4 5 6 7 8 9 10 11 12 13 Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . General description. . . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . Pinning information . . . . . . . . . . . . . . . . . . . . . . Ordering information . . . . . . . . . . . . . . . . . . . . . Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . Thermal characteristics. . . . . . . . . . . . . . . . . . . Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . Package outline . . . . . . . . . . . . . . . . . . . . . . . . . Revision history . . . . . . . . . . . . . . . . . . . . . . . . . Data sheet status . . . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact information . . . . . . . . . . . . . . . . . . . . . 1 1 1 1 1 1 2 2 2 2 4 5 6 6 6 6
(c) Koninklijke Philips Electronics N.V. 2004
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: 31 August 2004 Document number: 9397 750 13385
Published in The Netherlands

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