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DISCRETE SEMICONDUCTORS
DATA SHEET
BAS321 General purpose diode
Product data sheet Supersedes data of 1999 Feb 09 2004 Jan 26
NXP Semiconductors
Product data sheet
General purpose diode
FEATURES * Small plastic SMD package * Switching speed: max. 50 ns * General application * Continuous reverse voltage: max. 200 V * Repetitive peak reverse voltage: max. 250 V * Repetitive peak forward current: max. 625 mA.
handbook, halfpage
BAS321
PINNING PIN 1 2 DESCRIPTION cathode anode
1
2
APPLICATIONS * General purpose switching in e.g. surface mounted circuits. DESCRIPTION The BAS321 is a general purpose diode fabricated in planar technology and encapsulated in a plastic SOD323 package. ORDERING INFORMATION TYPE NUMBER BAS321 PACKAGE NAME - DESCRIPTION plastic surface mounted package; 2 leads VERSION SOD323
Marking code: A7 The marking bar indicates the cathode.
MAM406
Fig.1 Simplified outline (SOD323) and symbol.
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL VRRM VR IF IFRM IFSM PARAMETER repetitive peak reverse voltage continuous reverse voltage continuous forward current repetitive peak forward current non-repetitive peak forward current see Fig.2; note 1 tp < 0.5 ms; 0.25 square wave; Tj = 25 C prior to surge; see Fig.4 t = 1 s t = 100 s t = 10 ms Ptot Tstg Tj Note 1. Device mounted on an FR4 printed circuit-board. total power dissipation storage temperature junction temperature Tamb = 25 C; note 1 - - - - -65 - 9 3 1.7 300 +150 150 A A A mW C C CONDITIONS - - - - MIN. MAX. 250 200 250 625 V V mA mA UNIT
2004 Jan 26
2
NXP Semiconductors
Product data sheet
General purpose diode
CHARACTERISTICS Tj = 25 C unless otherwise specified. SYMBOL VF PARAMETER forward voltage see Fig.3 IF = 100 mA IF = 200 mA IR reverse current see Fig.5 VR = 200 V VR = 200 V; Tj = 150 C Cd trr diode capacitance reverse recovery time f = 1 MHz; VR = 0; see Fig.6 when switched from IF = 30 mA to IR = 30 mA; RL = 100 ; measured at IR = 3 mA; see Fig.8 100 100 2 50 1 1.25 CONDITIONS
BAS321
MAX. V V
UNIT
nA A pF ns
THERMAL CHARACTERISTICS SYMBOL Rth(j-s) Rth(j-a) Notes 1. Soldering point of cathode tab. 2. Device mounted on an FR4 printed circuit board. PARAMETER thermal resistance from junction to soldering point thermal resistance from junction to ambient note 2 CONDITIONS Ts = 90C; note 1 VALUE 130 366 UNIT K/W K/W
2004 Jan 26
3
NXP Semiconductors
Product data sheet
General purpose diode
GRAPHICAL DATA
MBK927
BAS321
handbook, halfpage
300
handbook, halfpage
600
MBG384
IF (mA) 200
IF (mA)
(1) (2) (3)
400
100
200
0 0 50 100 150 200 Tamb (C)
0
0
1
VF (V)
2
Device mounted on an FR4 printed-circuit board.
(1) Tj = 150 C; typical values. (2) Tj = 25 C; typical values. (3) Tj = 25 C; maximum values.
Fig.2
Maximum permissible continuous forward current as a function of ambient temperature.
Fig.3
Forward current as a function of forward voltage.
102 handbook, full pagewidth IFSM (A)
MBG703
10
1
10-1 1
Based on square wave currents. Tj = 25 C prior to surge.
10
102
103
tp (s)
104
Fig.4 Maximum permissible non-repetitive peak forward current as a function of pulse duration.
2004 Jan 26
4
NXP Semiconductors
Product data sheet
General purpose diode
BAS321
102 handbook, halfpage IR (A) 10
MBG381
handbook, halfpage
1.0
MBG447
Cd (pF) 0.8
1
(1)
(2)
0.6
10
1
0.4
10 2 0 100 Tj (oC) 200
0.2 0 2 4 6 VR (V) 8
(1) VR = VRmax; maximum values. (2) VR = VRmax; typical values.
f = 1 MHz; Tj = 25 C.
Fig.5
Reverse current as a function of junction temperature.
Fig.6
Diode capacitance as a function of reverse voltage; typical values.
handbook, halfpage
300
MBK926
VR (V) 200
100
0 0 50 100 150 200 Tamb (C)
Fig.7
Maximum permissible continuous reverse voltage as a function of the ambient temperature.
2004 Jan 26
5
NXP Semiconductors
Product data sheet
General purpose diode
BAS321
handbook, full pagewidth
tr D.U.T. 10% SAMPLING OSCILLOSCOPE R i = 50 VR 90%
tp t
RS = 50 V = VR I F x R S
IF
IF
t rr t
(1)
MGA881
input signal
output signal
(1) IR = 3 mA Input signal: reverse pulse rise time tr = 0.6 ns; reverse voltage pulse duration tp = 100 ns; duty factor = 0.05; Oscilloscope: rise time tr = 0.35 ns; Circuit capacitance C 1 pF (oscilloscope input + parasitic capacitance)
Fig.8 Reverse recovery time and waveforms.
2004 Jan 26
6
NXP Semiconductors
Product data sheet
General purpose diode
PACKAGE OUTLINE
BAS321
Plastic surface-mounted package; 2 leads
SOD323
D
A
E
X
HD
v
M
A
Q
1
2
bp A
A1
(1)
c Lp detail X
0
1 scale
2 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A 1.1 0.8 A1 max 0.05 bp 0.40 0.25 c 0.25 0.10 D 1.8 1.6 E 1.35 1.15 HD 2.7 2.3 Lp 0.45 0.15 Q 0.25 0.15 v 0.2
Note 1. The marking bar indicates the cathode OUTLINE VERSION SOD323 REFERENCES IEC JEDEC JEITA SC-76 EUROPEAN PROJECTION ISSUE DATE 03-12-17 06-03-16
2004 Jan 26
7
NXP Semiconductors
Product data sheet
General purpose diode
DATA SHEET STATUS DOCUMENT STATUS(1) Objective data sheet Preliminary data sheet Product data sheet Notes 1. Please consult the most recently issued document before initiating or completing a design. PRODUCT STATUS(2) Development Qualification Production DEFINITION
BAS321
This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
2. The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. DISCLAIMERS General Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions 2004 Jan 26 8 above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export control This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. Quick reference data The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding.
NXP Semiconductors
Customer notification This data sheet was changed to reflect the new company name NXP Semiconductors, including new legal definitions and disclaimers. No changes were made to the technical content, except for package outline drawings which were updated to the latest version.
Contact information For additional information please visit: http://www.nxp.com For sales offices addresses send e-mail to: salesaddresses@nxp.com
(c) NXP B.V. 2009 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.
Printed in The Netherlands R76/02/pp9 Date of release: 2004 Jan 26 Document order number: 9397 750 12589

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