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Schottky Barrier Rectifier
COMCHIP
SMD Diodes Specialist
SR502-G Thru. SR508-G
Forward current: 5.0A Reverse voltage: 20 to 80V RoHS Device
Features
-Fast switching. -Low forward voltage, high current capability. -Low power loss, high efficiency. -High current surge capability. -High temperature soldering guaranteed: 250 OC/10 seconds, 0.375” (9.5mm) lead length at 5lbs (2.3kg) tension.
1.0(25.4) min. 0.052(1.30) 0.048(1.20)
DO-27
0.375(9.50) 0.335(8.50)
Mechanical Data
-Case: transfer molded plastic. -Epoxy: UL94V-0 rate flame retardant.
0.220(5.60) 0.197(5.00)
1.0(25.4) min.
-Polarity: color band denoted cathode end. -Lead: plastic axial lead, solderable per MIL-STD202E, method 208C. -Mounting position: any. -Weight: 0.042 ounce, 1.19 gram.
Dimensions in inches and (millimeter)
Maximum Ratings and Electrical Characteristics
At Ta=25 C unless otherwise noted. Single phase, half wave, 60Hz, resistive or inductive loaded. For capacitive load, derate current by 20% .
O
Parameter
Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward TL=60 OC (SR502-G ~ SR504-G) rectified current, 0.375” O TL=80 C (SR505-G ~ SR508-G) (9.5mm) lead length at Peak forward surge current, 8.3ms single half sinewave, superimposed on rated load (JEDEC method) Maximum instantaneous forward voltage at I F =5.0A Maximum DC reverse current at rated DC blocking voltage (Note 1) Typical junction capacitance (Note 2) Typical thermal resistance (Note 3) Operating junction temperature range Storage temperature range T A =25 OC T A =100 OC
Symbol SR502 SR503 SR504 SR505 SR506 SR508
-G
20 14 20
-G
-G
40 28 40
-G
50 35 50
-G
60 42 60
-G
80 57 80
Unit
V V V
V RRM V RMS V DC
30 21 30
I AV
5.0
A
I FSM VF IR 0.57
150
A 0.70 0.80 V mA
5.0 50 550 25 -65 ~ +125 -65 ~ +150 -65 ~ +150 450
O
CJ RθJA TJ T STG
pF C/W
O
C C
O
Note: 1. Test pulse: 300μS pulse width, 1% duty cycle. 2. Measured at 1MHz and applied reverse voltage of 4.0V. 3. Thermal resistance from junction to ambient P.C.B. mounted with 0.375" (9.5mm) lead length with 2.5"×2.5"(63.5×63.5mm) copper pads. QW-BB017
REV:A
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Schottky Barrier Rectifier
RATING AND CHARACTERISTIC CURVES (SR502-G Thru. SR508-G)
Fig.1 Typical Forward Current Derating Curve
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COMCHIP
SMD Diodes Specialist
Fig.2 Maximum Non-Repetitive Peak Forward Surge Current
I FSM , Peak Forward Surge Current (A)
8.3ms single half sine-wave (JEDEC method)
I AV , Average Forward Current (A)
5
150
4
SR 50 2-
SR 50 5G ~S
100
3
G ~S R5 04
R5 08 -G
2
-G
50
1
Single phase, half wave 60Hz Inductive or resistive load 0.375" (9.5mm) lead length
1 Cycle
0 0 25 50 75 100 125 150 175
0 1 10 100
T L , Lead Temperature ( OC)
Number of Cycles at 60Hz
I F , Instantaneous Forward Current (A)
100
SR502-G~SR504-G SR505-G~SR508-G
I R , Instantaneous Reverse Voltage (mA)
Fig.3 Typical Instantaneous Forward Characteristics
Fig.4 Typical Reverse Characteristics
SR502-G~SR504-G
1.0
SR505-G~SR508-G
T J =125 O
10
0.1
T J =75 C
O
1
0.01
0.1
T J =25 OC Pulse width=300μs 1% duty cycle
T J =25 OC
0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
0.001 0 20 40 60 80 100 120 140
V F , Instantaneous Forward Voltage (V)
Percent of Rated Peak Reverse Voltage (%)
Fig.5 Typical Junction Capacitance
10000
C J , Junction Capacitance (pF)
T J =25 C f=1MHz V sig =50mV
O
SR502-G~SR504-G SR505-G~SR508-G
1000
100 0.1
1
10
100
V R , Reverse Voltage (V)
REV:A
QW-BB017
Page 2
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