Document
1PS76SB21; BAT721 series
Schottky barrier diodes in small packages
Rev. 06 — 21 December 2006
Product data sheet
1. Product profile
1.1 General description
Planar Schottky barrier diodes with an integrated guard ring for stress protection. Encapsulated in small Surface-Mounted Device (SMD) plastic packages.
Table 1. Product overview
Type number
Package
Nexperia
1PS76SB21
SOD323
BAT721
SOT23
BAT721A
SOT23
BAT721C
SOT23
BAT721S
SOT23
JEITA SC-76 -
Configuration
single single dual common anode dual common cathode dual series
1.2 Features
I Low forward voltage I Small SMD plastic packages I Low capacitance
1.3 Applications
I Ultra high-speed switching I Voltage clamping I Line termination I Reverse polarity protection
1.4 Quick reference data
Table 2. Quick reference data Symbol Parameter Per diode IF forward current VR reverse voltage VF forward voltage
[1] Pulse test: tp ≤ 300 µs; δ ≤ 0.02.
Conditions IF = 200 mA
Min Typ Max Unit
- - 200 mA - - 40 V [1] - - 550 mV
Nexperia
1PS76SB21; BAT721 series
Schottky barrier diodes in small packages
2. Pinning information
Table 3. Pinning Pin Description 1PS76SB21 1 cathode 2 anode
BAT721 1 2 3
anode not connected cathode
BAT721A 1 2 3
cathode (diode 1)
cathode (diode 2)
anode (diode 1), anode (diode 2)
BAT721C 1 2 3
anode (diode 1)
anode (diode 2)
cathode (diode 1), cathode (diode 2)
BAT721S 1 2 3
anode (diode 1)
cathode (diode 2)
cathode (diode 1), anode (diode 2)
[1] The marking bar indicates the cathode.
Simplified outline Symbol
[1] 1
2
12 sym001
3 1
12 006aaa144
3
2 n.c. 006aaa436
3
12 006aaa144
1
3 2
006aaa439
33
1
12 006aaa144
2 006aaa438
3
12 006aaa144
1
3 2
006aaa437
1PS76SB21_BAT721_SER_6
Product data sheet
Rev. 06 — 21 December 2006
© Nexperia B.V. 2017. All rights reserved
2 of 11
Nexperia
1PS76SB21; BAT721 series
Schottky barrier diodes in small packages
3. Ordering information
Table 4. Ordering information
Type number Package
Name
Description
1PS76SB21 SC-76
plastic surface-mounted package; 2 leads
BAT721
-
plastic surface-mounted package; 3 leads
BAT721A
BAT721C
BAT721S
4. Marking
Table 5. Marking codes Type number 1PS76SB21 BAT721 BAT721A BAT721C BAT721S
[1] * = -: made in Hong Kong * = p: made in Hong Kong * = t: made in Malaysia * = W: made in China
5. Limiting values
Marking code[1] S1 L7* L8* L9* L0*
Table 6. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
Per diode
VR IF IFSM
Tj Tamb Tstg
reverse voltage forward current non-repetitive peak forward current
junction temperature ambient temperature storage temperature
half sine wave; JEDEC method; tp = 8.3 ms
-
−65 −65
Version SOD323 SOT23
Max Unit
40 V 200 mA 1A
125 +150 +150
°C °C °C
1PS76SB21_BAT721_SER_6
Product data sheet
Rev. 06 — 21 December 2006
© Nexperia B.V. 2017. All rights reserved
3 of 11
Nexperia
1PS76SB21; BAT721 series
Schottky barrier diodes in small packages
6. Thermal.