Reverse Voltage: 40 to 200 Volts
Forward Current: 3.0 Amp
RoHS Device
Halogen Free
Features
- Metal silicon junction, majority carrier conduction.
- For surface mounted applications.
- Low power loss, high efficiency.
- High forward surge current capability.
- For use in low voltage, high frequency inverters,
free wheeling, and polarity protection applications.
SMD Schottky Barrier Rectifiers
Page 1
REV:A
SS34BF-HF Thru. SS320BF-HF
Comchip Technology CO., LTD.
Company reserves the right to improve product design , functions and reliability without notice.
SP-JB036
Mechanical data
- Case: SMBF
- Terminals: Solderable per MIL-STD-750,
method 2026.
Maximum Ratings and Electrical Characteristics
Notes: 1. Measured at 1 MHz and applied reverse voltage of 4 V D.C
2. P.C.B. mounted with 2.0" X 2.0" (5 X 5 cm) copper pad areas.
Ratings at 25°C ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz resistive or inductive load, for capacitive load, derate by 20%
Maximum DC blocking voltage
Parameter
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum average forward rectified current
40
V
28
V
V
3
A
Units
40
VRRM
VRMS
VDC
IF(AV)
Symbols
60
42
60
100
100
200
200
150
105
150
70 140
Typical junction capacitance (Note 1)
-55 ~ +150
A
V
mA
pF
°C
Peak forward surge current, 8.3ms
single half sine-wave superimposed
on rated load (JEDEC method)
Max instantaneous forward voltage at 3A
Maximum DC reverse current Tj = 25°C
at rated DC reverse voltage Tj =100°C
Operating junction temperature range
IFSM
VF
Cj
Tj
0.55 0.70 0.85
450 400
80
0.3
3
IR
65
Typical thermal resistance (Note 2)
°C/W
RθJA
Tstg
Storage temperature range
-55 ~ +150
°C
SS34BF-HF SS36BF-HF SS310BF-HF SS320BF-HFSS315BF-HF
0.95
0.5
5
Circuit Diagram
Cathode
Anode
SMBF
Dimensions in inches and (millimeter)
0.217(5.50)
0.201(5.10)
0.146(3.70)
0.138(3.50)
0.051(1.30)
0.043(1.10)
0.039(1.00)
0.087(2.20)
0.075(1.90)
0.173(4.40)
0.165(4.20)
Typ
0.010(0.26)
0.007(0.18)
Rating and Characteristic Curves (SS34BF-HF Thru. SS320BF-HF)
SMD Schottky Barrier Rectifiers
Page 2
REV:A
Comchip Technology CO., LTD.
Company reserves the right to improve product design , functions and reliability without notice.
Fig.2 - Typical Reverse Characteristics
Instantaneous Reverse Current, (μA)
Percent of Rated Peak Reverse Voltage, (%)
Fig.4 - Typical Junction Capacitance
Junction Capacitance, (pF)
Reverse Voltage, (V)
Fig.6 - Typical Transient Thermal Impedance
Transient Thermal Impedance, (°C/W）
Pulse Duration, t (sec）
Fig.1 - Forward Current Derating Curve
Average Forward Current, (A)
Case Temperature, (°C)
Fig.3 - Typical Forward Characteristic
Instantaneous Forward Current, (A)
Instantaneous Forward Voltage, (V)
Fig.5 - Maximum Non-Repetitive Peak
Forward Surge Current
Peak Forward Surge Current, (A)
Number of Cycles at 60Hz
0 25 15050 75 100 125
0
0.6
1.2
1.8
2.4
3.0
3.5
0 20 40 60 80 100
0
0
10
1
10
10²
10³
4
10
0.2 1.80.4 0.6 0.8 1.0 1.2 1.4 1.6
0.1
1.0
10
20
1
10 100
30
40
20
50
60
80
90
0.1
1
10 1000.01
10
100
1
8.3ms single half sine wave
(JEDEC Method)
SS310BF-HF
SS315BF-HF~SS320BF-HF
SS34BF-HF
SS36BF-HF
0.1 1 10 100
10
100
500
1000
TJ=25°C
SS310BF-HF~SS320BF-HF
SS34BF-HF~SS36BF-HF
TJ=100°C
TJ=75°C
TJ=25°C
SS34BF-HF~SS36BF-HF
SS310BF-HF~SS320BF-HF
SP-JB036
70