BAS21QC-Q

High-voltage switching diode4 May 2021

Product data sheet

1. General description
High-voltage switching diode, encapsulated in an ultra small DFN1412D-3 (SOT8009, JEDEC
MO340-CA) leadless Surface-Mounted Device (SMD) plastic package with side-wettable flanks.

2. Features and benefits
•
•
•
•
•
•
•
•

High switching speed: trr ≤ 50 ns
Low leakage current
High reverse voltage: VR ≤ 200 V
Low capacitance: Cd ≤ 5 pF
Leadless ultra small SMD plastic package
Low package height of 0.5 mm
Suitable for Automatic Optical Inspection (AOI) of solder joint
Qualified according to AEC-Q101 and recommended for use in automotive applications

3. Applications••••

High-speed switching
General-purpose switching
Voltage clamping
Reverse polarity protection

4. Quick reference data
Table 1. Quick reference data
SymbolParameter

Conditions

IF

forward current

Tj = 25 °C

VRreverse voltage

VFforward voltage

VRRM

Min

Typ

Max

Unit

-

-

250

mA

-

-

200

V

-

-

1.25

V

repetitive peak reverse Tj = 25 °C
voltage

-

-

250

V

IR

reverse current

VR = 200 V; Tj = 25 °C

-

-

100

nA

trr

reverse recovery timeIF = 30 mA; IR = 30 mA; RL = 100 Ω;
IR(meas) = 3 mA; Tamb = 25 °C

-

-

50

ns

[1]

IF = 200 mA; Tj = 25 °C[1]

Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided 70 μm copper, tin-plated and standard footprint.

BAS21QC-Q

Nexperia

High-voltage switching diode5. Pinning information
Table 2. Pinning information
Pin
SymbolDescription
1

A

anode

2

n.c.

not connected

3

K

cathodeSimplified outline
1

Graphic symbol
2

A
K

3
n.c.

Bottom view

DFN1412D-3 (SOT8009)

aaa-021941

6. Ordering information
Table 3. Ordering information
Type number
Package
BAS21QC-Q

Name

Description

Version

DFN1412D-3

plastic, leadless ultra small outline package with sidewettable flanks (SWF); 3 terminals; 0.8 mm pitch; 1.4 mm
x 1.2 mm x 0.48 mm body

SOT8009

7. Marking
Table 4. Marking codes
Type number

Marking code

BAS21QC-Q

9Q

BAS21QC-Q

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High-voltage switching diode8. Limiting values
Table 5. Limiting values
In accordance with the Absolute Maximum Rating Sytem (IEC 60134)
SymbolParameter

Conditions

Min

Max

Unit

VRRM

repetitive peak reverse
voltageTj = 25 °C

-

250

V

VR

reverse voltage

-

200

V

IF

forward current

-

250

mA

IFSM

non-repetitive peak
forward current

tp = 1 µs; square wave; Tj(init) = 25 °C

-

9

A

tp = 100 µs; square wave; Tj(init) = 25 °C

-

3

A

tp = 10 ms; square wave; Tj(init) = 25 °C

-

1.7

A

-

625

mA

[1]

-

440

mW

[2]

-

750

mW

[1]

IFRM

repetitive peak forward
current

tp ≤ 1 ms; δ ≤ 0.25

Ptot

total power dissipation

Tamb ≤ 25 °C

Tj

junction temperature

-

150

°C

Tamb

ambient temperature

-55

150

°C

Tstg

storage temperature

-65

150

°C

[1]
[2]

Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided 70 μm copper, tin-plated and standard footprint.
2
Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided 70 μm copper, tin-plated and mounting pad for cathode 1 cm .

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BAS21QC-Q

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High-voltage switching diode9. Thermal characteristics
Table 6. Thermal characteristics
SymbolParameter
Rth(j-a)[1][2]

Conditions

thermal resistance from In free air
junction to ambient

Min

Typ

Max

Unit

[1]

-

-

285

K/W

[2]

-

-

160

K/W

Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided 70 μm copper, tin-plated and standard footprint.
2
Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided 70 μm copper, tin-plated and mounting pad for cathode 1 cm .
aaa-031951

103
Zth(j-a)(K/W)

duty cycle = 1
0.75

102

0.33
0.20

0.50
0.25
0.10

10

0.05
0.02
0.01
0

1
10-5

10-4

10-3

10-2

10-1

1

10

102

tp (s)

103

FR4 PCB, single-sided 70 µm copper, standard footprint
Fig. 1.

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
aaa-031952

103
Zth(j-a)(K/W)
duty cycle = 1
102 0.75
0.33
0.20

0.50
0.25
0.10

10

0.05
0.02
0.01

1
10-5

0

10-4

10-3

10-2

FR4 PCB, single-sided 70 µm copper, 1 cm
Fig. 2.

10-1

1

2

10

102

tp (s)

103

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values

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BAS21QC-Q

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High-voltage switching diode10. Characteristics
Table 7. Characteristics
SymbolParameter

Conditions

Min

Typ

Max

Unit

VF

IF = 100 mA; Tj = 25 °C

-

-

1

V

IF = 200 mA; Tj = 25 °C

-

-

1.25

V

VR = 200 V; Tj = 25 °C

-

-

100

nA

forward voltageIRreverse current

VR = 200 V; Tj = 150 °C

-

-

100

µA

Cd

diode capacitance

VR = 0 V; f = 1 MHz; Tamb = 25 °C

-

-

5

pF

trr

reverse recovery timeIF = 30 mA; IR = 30 mA; RL = 100 Ω;
IR(meas) = 3 mA; Tamb = 25 °C

-

-

50

ns

aaa-032145

600
IF
(mA)

aaa-032146

102
IR
(µA)
10

(1)

(2)

1

400

10-1
(3)

10-2
(2)

200

(1)

10-3

(3)
(4)

10-4
0

0

0.4

0.8

1.2

VF (V)

10-5

1.6(1) Tj = 150° C(2) Tj = 85° C(3) Tj = 25° C(4) Tj = -40° C
Fig. 3.

Product data sheet

0

50

100

150

200

VR (V)

250(1) Tj = 150° C(2) Tj = 85° C(3) Tj = 25° C(4) Tj = -40° C

Forward current as a function of forward
voltage; typical values

BAS21QC-Q(4)

Fig. 4.

Reverse current as a function of reverse
voltage; typical values

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BAS21QC-Q

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High-voltage switching diodeaaa-028237

1
IF
(A)

Cd
(pF)

10-1

0.8

10-2

0.6

(1) (2) (3) (4)

10-3

10-4

0

0.25

0.50

0.75

0.4

1.00

1.25

0.2

1.50 1.75
VF (V)(1) Tj = 150° C(2) Tj = 85° C(3) Tj = 25° C(4) Tj = -40° C
Fig. 5.

mbg4471.0

Product data sheet

2

4

6

VR (V)

8

f = 1 MHz
Tj = 25 °C.
Fig. 6.

Forward current as a function of forward
voltage; typical values; (logarithmic scale)

BAS21QC-Q

0

Diode capacitance as a function of reverse
voltage; typical values.

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High-voltage switching diode11. Test informationtr
D.U.T.
RS = 50 Ω
V = VR + IF × RS

IF

tp

10 %

t
+ IF

SAMPLING
OSCILLOSCOPE

trrt

Ri = 50 Ω
mga881

VR

(1)

90 %
input signal

output signal(1) IR = 3 mA
Fig. 7.

Reverse recovery time test circuit and waveforms

Quality information
This product has been qualified in accordance with the Automotive Electronics Council (AEC)
standard Q101 - Stress test qualification for discrete semiconductors, and is suitable for use inautomotive applications.

BAS21QC-Q

Product data sheet

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BAS21QC-Q

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High-voltage switching diode12. Package outline
DFN1412D-3: plastic, leadless ultra small outline package with side-wettable flanks (SWF);
3 terminals; 0.8 mm pitch; 1.4 mm x 1.2 mm x 0.48 mm body

SOT8009

A1

C

X

Seating planedetail X

y C

pin 1
index area
(1)

(1)

(2)

B

v
w

b
(2x)
y1 C

(4x)

C A B
C

e
1

2

L (2x)K (2x)

e1

E

e2

E1

Gx45°
3

u C
(1)

(2x)

(1)

D

A

D1

A
u C

T (4x)

(2x)

0

1 mm
scale

Dimensions (mm are the original dimensions)
Unit
mm

A

A1

b

D

D1

E

E1

e

e1

e2

G

K

L

T

max 0.50
nom 0.47
min 0.44

0.04

0.30
0.25
0.22

1.4

1.25
1.20
1.17

1.2

0.55
0.50
0.47

0.8 0.71 0.26

0.09
(ref)

0.35 0.22
0.30 0.16
0.25 0.27 0.10

u

v

w

0.05

0.1 0.05 0.05 0.05

Note
1. Side Wettable Flank, protrusion max. 0.02 mm.
2. Visible depend upon used manufacturing technology.
Dimension A and T are including plating thickness.
Outlineversion
SOT8009

Fig. 8.

y1

sot8009_po

References
IEC

y

JEDEC

JEITA

Europeanprojection

Issue date
19-12-06
20-12-13

MO-340CA

Package outline DFN1412D-3 (SOT8009)

BAS21QC-Q

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High-voltage switching diode13. Soldering
Footprint information for reflow soldering of DFN1412D-3 package

SOT8009

1.7
0.5

0.3

0.4

0.4

0.3
0.8

0.65 0.55 0.45

0.3

0.4

0.4
2.0

0.6

0.7

0.95 0.85 0.75

0.25

0.25

1.2
1.3
1.4
recommended stencil thickness: 0.1 mm

occupied area

solder resist

solder landsolder paste

Dimensions in mm
Issue dateFig. 9.

20-03-23

sot8009_fr

Reflow soldering footprint for DFN1412D-3 (SOT8009)

BAS21QC-Q

Product data sheet

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BAS21QC-Q

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High-voltage switching diode14. Revision history
Table 8. Revision history
Data sheet ID
Release date

Data sheet status

Change notice

Supersedes

BAS21QC-Q v.2

20210504

Product data sheet-

BAS21QC-Q v.1

Modifications:•

BAS21QC-Q v.1

20210221

BAS21QC-Q

Product data sheet

Features and benefits: added recommendation for automotive applications
Product data sheet-

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BAS21QC-Q

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High-voltage switching diodeequipment, nor in applications where failure or malfunction of an Nexperia
product can reasonably be expected to result in personal injury, death orsevere property or environmental damage. Nexperia and its suppliers accept
no liability for inclusion and/or use of Nexperia products in such equipment orapplications and therefore such inclusion and/or use is at the customer's own
risk.

15. Legal information
Data sheet status
Document status[1][2]

Product
status [3]Definition

Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of thisdocument, and as such is not complete, exhaustive or legally binding.

Objective [short]data sheet

Development

This document contains data fromthe objective specification for
product development.

Preliminary [short]data sheet

Qualification

This document contains data fromthe preliminary specification.

Applications — Applications that are described herein for any of theseproducts are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
without further testing or modification.

Product [short]data sheet

Production

This document contains the productspecification.

[1]
[2]
[3]

Please consult the most recently issued document before initiating orcompleting a design.
The term 'short data sheet' is explained in section "Definitions".
The product status of device(s) described in this document may havechanged since this document was published and may differ in case ofmultiple devices. The latest product status information is available on
the internet at https://www.nexperia.com.

Definitions
Draft — The document is a draft version only. The content is still underinternal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any representations or
warranties as to the accuracy or completeness of information included hereinand shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheetwith the same product type number(s) and title. A short data sheet isintended for quick reference only and should not be relied upon to containdetailed and full information. For detailed and full information see the relevant
full data sheet, which is available on request via the local Nexperia sales
office. In case of any inconsistency or conflict with the short data sheet, thefull data sheet shall prevail.
Product specification — The information and data provided in a Productdata sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement bevalid in which the Nexperia product is deemed to offer functions and qualities
beyond those described in the Product data sheet.

Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, Nexperia 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 theconsequences of use of such information. Nexperia takes no responsibility
for the content in this document if provided by an information source outsideof Nexperia.
In no event shall Nexperia be liable for any indirect, incidental, punitive,
special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removalor replacement of any products or rework charges) whether or not suchdamages are based on tort (including negligence), warranty, breach ofcontract or any other legal theory.

Customers are responsible for the design and operation of their applications
and products using Nexperia products, and Nexperia accepts no liability forany assistance with applications or customer product design. It is customer’ssole responsibility to determine whether the Nexperia product is suitableand fit for the customer’s applications and products planned, as well as
for the planned application and use of customer’s third party customer(s).
Customers should provide appropriate design and operating safeguards tominimize the risks associated with their applications and products.
Nexperia does not accept any liability related to any default, damage, costs
or problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party
customer(s). Customer is responsible for doing all necessary testing for thecustomer’s applications and products using Nexperia products in order toavoid a default of the applications and the products or of the application or
use by customer’s third party customer(s). Nexperia does not accept any
liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or theCharacteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — Nexperia products are
sold subject to the general terms and conditions of commercial sale, as
published at http://www.nexperia.com/profile/terms, unless otherwise agreed
in a valid written individual agreement. In case an individual agreement isconcluded only the terms and conditions of the respective agreement shallapply. Nexperia hereby expressly objects to applying the customer’s generalterms and conditions with regard to the purchase of Nexperia products bycustomer.
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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.
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Translations — A non-English (translated) version of a document is forreference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.

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Notwithstanding any damages that customer might incur for any reason
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for the products described herein shall be limited in accordance with theTerms and conditions of commercial sale of Nexperia.
Right to make changes — Nexperia 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 in automotive applications — This Nexperia producthas been qualified for use in automotive applications. Unless otherwise
agreed in writing, the product is not designed, authorized or warranted tobe suitable for use in life support, life-critical or safety-critical systems or

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High-voltage switching diodeContents
1. General description...................................................... 1
2. Features and benefits.................................................. 1
3. Applications.................................................................. 1
4. Quick reference data....................................................1
5. Pinning information......................................................2
6. Ordering information....................................................2
7. Marking.......................................................................... 2
8. Limiting values............................................................. 3
9. Thermal characteristics............................................... 4
10. Characteristics............................................................ 5
11. Test information.......................................................... 7
12. Package outline.......................................................... 8
13. Soldering..................................................................... 9
14. Revision history........................................................10
15. Legal information......................................................11© Nexperia B.V. 2021. All rights reserved

For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 4 May 2021

BAS21QC-Q

Product data sheet

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