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SMD Schottky Barrier Rectifiers
SMD Diodes Specialist
CDBA5817-HF Thru CDBA5819-HF
Reverse Voltage: 20 - 40 Volts Forward Current: 1A or 3 A RoHS Device
Features
Halogen free. Ideal for surface mount applications. Easy pick and place. Plastic package has Underwriters Lab, flamability classification94V-0. Built-in strain relief. Low forward voltage drop.
0.180(4.57) 0.160(4.06)
DO-214AC (SMA)
0.065(1.65) 0.049(1.25)
0.110(2.79) 0.086(2.18)
Mechanical data
Case: JEDEC DO-214AC, molded plastic. Terminals: Solderable per MIL-STD-750, method 2026. Polarity: Color band denotes cathode end. -Approx. weight: 0.056 grams
0.091(2.31) 0.067(1.70)
0.208(5.28) 0.193(4.90)
0.012(0.31) 0.006(0.15)
0.060(1.52) 0.030(0.76)
0.005(0.127) max.
Dimensions in inches and (millimeter)
Maximum Ratings(at TA=25C unless otherwise noted)
Parameter
Max. Repetitive Peak Reverse Voltage Max. DC Bolcking Voltage Max. RMS Voltage Peak Surge Forward Current 8.3ms single half sine-wave suprimposed on rate load (JEDEC method) Max. Average Forward Current Max. Thermal Resistance Storage Temperature Max. Operating Junction Temperature
Symbol CDBA5817-HF
VRRM VDC VRMS 20 20 14
CDBA5818-HF
30 30 21
CDBA5819-HF
40 40 28
Unit
V V V
IFSM
25
A
IO R
JL
1 20 +125 -65 to +150
O
A C/W
O
TSTG Tj
C C
O
Electrical Characteristics (at TA=25C unless otherwise noted)
Parameter
Max. Forward Voltage at 1.0 A at 3.0 A Max. DC Reverse Current at Rated DC Blocking Voltage Ta = 25C Ta = 100C
O O
Symbol CDBA5817-HF
VF 0.45 0.75
CDBA5818-HF
0.550 0.775 0.5 20 65
CDBA5819-HF
0.60 0.90
Unit
V
IR
mA
Typical Junction Capacitance
Cj
pF
REV:A
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Page 1
Comchip Technology CO., LTD.
SMD Schottky Barrier Rectifiers
SMD Diodes Specialist
RATING AND CHARACTERISTIC CURVES (CDBA5817-HF Thru CDBA5819-HF)
Fig. 1 - Forward characteristics
10 1000
Fig. 2 - Reverse characteristics
Tj=125 C
O
Reverse current (mA)
Forward current (A)
100
1.0
10
Tj =25 C
O
0.1
Tj
=2 5
C
O
1
Pulse width 300us 1% duty cycle
0.01 0 0.2 0.4 0.6 0.8 1.0
0.1 0 10 20 30 40 50
Forward voltage (V)
Percent of rated peak reverse voltage (%)
Fig.3 - Capacitance between terminals characteristics
1000
f=1MHz Tj=25C
O
Fig.4 - Current derating curve
1.2
Average forward current(A)
0.1 1 10 100
Junction capacitance(PF)
1.0 0.8 0.6 0.4 0.2 0
0 25 50 75 100
O
100
10
125
150
Reverse voltage (V)
Lead temperature (C)
Fig.5 - Non repetitive peak forward surge current
35
8.3 ms single half sine wave JEDEC mehode
Peak surge forward current(A)
30 25 20 15 10 5 0 1 10 100
Tj =25 C
O
Number of cycles at 60 Hz
REV:A
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Page 2
Comchip Technology CO., LTD.
SMD Schottky Barrier Rectifiers
SMD Diodes Specialist
Reel Taping Specification
P0 P1 d Index hole E T
F B
Polarity
W C
P
A
12 0
o
D2
D1 D
W1
Trailer ....... .......
10 pitches (min)
Device ....... ....... ....... .......
Leader ....... .......
10 pitches (min)
End
Start
Direction of Feed
SYMBOL
A
2.70 (max)
0.106 (max)
B
5.30 (max)
0.209 (max)
C
2.66 (max)
0.105 (max)
d
1.50 0.10
0.059 0.004
D
330
12.99
D1
50.0 MIN.
1.969 MIN.
D2
13.5 1.00
0.531 0.039
SMA (DO-214AC)
(mm) (inch)
SYMBOL
SMA (DO-214AC)
E
1.75 0.10
0.689 0.004
F
5.50 0.05
0.217 0.002
P
4.00 0.10
0.157 0.004
P0
4.00 0.10
0.157 0.004
P1
2.00 0.05
0.079 0.002
W
12.0 0.20
0.472 0.008
W1
18.4 (max)
0.724 (max)
(mm) (inch)
REV:A
QW-JB009
Page 3
Comchip Technology CO., LTD.
SMD Schottky Barrier Rectifiers
SMD Diodes Specialist
Marking Code
Part Number CDBA5817-HF CDBA5818-HF CDBA5819-HF Marking Code 5817 5818 5819
XXXX
xxxx = Product type marking code
Suggested PAD Layout
DO-214AC(SMA) SIZE (mm) A B C D E 3.80 1.60 2.80 5.40 2.20 (inch) 0.150 0.063 0.110 0.213 0.087
D A E
C
B
Standard Package
Qty per Reel Case Type (Pcs)
DO-214AC (SMA)
Reel Size (inch) 13
5000
REV:A
QW-JB009
Page 4
Comchip Technology CO., LTD.

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