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SS22, SS24 Surface Mount Schottky Power Rectifier
SMB Power Surface Mount Package
These devices employ the Schottky Barrier principle in a metal-to-silicon power rectifier. Features epitaxial construction with oxide passivation and metal overlay contact. Ideally suited for low voltage, high frequency switching power supplies; free wheeling diodes and polarity protection diodes.
Features http://onsemi.com
* * * * * * * * * * * * *
Compact Package with J-Bend Leads Ideal for Automated Handling Highly Stable Oxide Passivated Junction Guardring for Over-Voltage Protection Low Forward Voltage Drop Pb-Free Package is Available
SCHOTTKY BARRIER RECTIFIER 2 AMPERES 20, 40 VOLTS
Mechanical Characteristics
Case: Molded Epoxy Epoxy Meets UL 94 V-0 @ 0.125 in Weight: 95 mg (approximately) Cathode Polarity Band Lead and Mounting Surface Temperature for Soldering Purposes: 260C Max. for 10 Seconds Available in 12 mm Tape, 2500 Units per 13 in Reel, Add "T3" Suffix to Part Number Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable ESD Ratings: Machine Model = C ESD Ratings: Human Body Model = 3B
SMB CASE 403A PLASTIC
MARKING DIAGRAM
AYWW SS2xG G
SS2x = Specific Device Code x = 2 or 4 A = Assembly Location Y = Year WW = Work Week G = Pb-Free Package (Note: Microdot may be in either location)
ORDERING INFORMATION
Device SS22T3 SS24T3 SS24T3G Package SMB SMB SMB (Pb-Free) Shipping 2500/Tape & Reel 2500/Tape & Reel 2500/Tape & Reel
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
(c) Semiconductor Components Industries, LLC, 2005
1
July, 2005 - Rev. 2
Publication Order Number: SS24/D
SS22, SS24
MAXIMUM RATINGS
Rating Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Average Rectified Forward Current (At Rated VR, TL = 100C) Peak Repetitive Forward Current (At Rated VR, Square Wave, 100 kHz, TC = 105C) Non-Repetitive Peak Surge Current (Surge Applied at Rated Load Conditions Halfwave, Single Phase, 60 Hz) Storage/Operating Case Temperature Operating Junction Temperature Voltage Rate of Change (Rated VR, TJ = 25C) Symbol VRRM VRWM VR IO IFRM Value Unit V 20 40 2.0 3.0 A A
SS22 SS24
IFSM Tstg, TC TJ dv/dt
75 -55 to +150 -55 to +125 10,000
A C C V/ms
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.
THERMAL CHARACTERISTICS
Characteristic Thermal Resistance, Junction-to-Lead (Note 1) Thermal Resistance, Junction-to-Ambient (Note 2) Symbol RqJL RqJA Value 24 80 Unit C/W
ELECTRICAL CHARACTERISTICS
Maximum Instantaneous Forward Voltage (Note 3) see Figure 2 Maximum Instantaneous Reverse Current (Note 3) see Figure 4 vF (iF = 2.0 A) IR (VR = 40 V) TJ = 25C 0.50 TJ = 25C 0.4 TJ = 125C 0.46 TJ = 100C 5.7 mA V
1. Mounted with minimum recommended pad size, PC Board FR4. 2. 1 inch square pad size (1 x 0.5 inch for each lead) on FR4 board. 3. Pulse Test: Pulse Width 250 ms, Duty Cycle 2.0%.
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SS22, SS24
i F, INSTANTANEOUS FORWARD CURRENT (AMPS) IF, INSTANTANEOUS FORWARD CURRENT (AMPS) 100 100
10
10
TJ = 125C 1.0 100C -40 C 0.1 0.1 0.3 0.5
25C
TJ = 125C 1.0 100C 25C 0.1 0.1 0.3 0.5 0.7 0.9 VF, MAXIMUM INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
0.7
0.9
vF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
Figure 1. Typical Forward Voltage
Figure 2. Maximum Forward Voltage
10E-3
IR , MAXIMUM REVERSE CURRENT (AMPS)
100E-3 IR , REVERSE CURRENT (AMPS)
100E-3 10E-3 1.0E-3
TJ = 125C
TJ = 125C
1.0E-3
100C
100C
100E-6
100E-6 25C 10E-6 1.0E-6
10E-6
25C
1.0E-6
0
10
20
30
40
0
10
20
30
40
VR, REVERSE VOLTAGE (VOLTS)
VR, REVERSE VOLTAGE (VOLTS)
Figure 3. Typical Reverse Current
Figure 4. Maximum Reverse Current
dc 2.0 SQUARE WAVE 1.5 1.0 Ipk/Io = p Ipk/Io = 5.0 Ipk/Io = 10 0.5 0 25 45 65 85 Ipk/Io = 20
FREQ = 20 kHz
PFO , AVERAGE POWER DISSIPATION (WATTS)
IO , AVERAGE FORWARD CURRENT (AMPS)
2.5
1.2 dc 1.0 0.8 0.6 0.4 0.2 0 0 0.5 1.0 1.5 2.0 2.5 IO, AVERAGE FORWARD CURRENT (AMPS) SQUARE WAVE Ipk/Io = p Ipk/Io = 5.0 Ipk/Io = 10 Ipk/Io = 20
105
125
TL, LEAD TEMPERATURE (C)
Figure 5. Current Derating
Figure 6. Forward Power Dissipation
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SS22, SS24
TJ , DERATED OPERATING TEMPERATURE ( C) 1000 TJ = 25C C, CAPACITANCE (pF) 125 115 43C/W 105 95 85 75 65 63C/W 80C/W Rtja = 24C/W
100
93C/W
10 0 5.0 10 15 20 25 30 35 40 VR, REVERSE VOLTAGE (VOLTS)
0
5.0
10
15
20
25
30
35
40
VR, DC REVERSE VOLTAGE (VOLTS)
Figure 7. Capacitance
Figure 8. Typical Operating Temperature Derating*
R T, TRANSIENT THERMAL RESISTANCE (NORMALIZED)
* Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any reverse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating TJ may be calculated from the equation: TJ = TJmax - r(t)(Pf + Pr) where r(t) = thermal impedance under given conditions, Pf = forward power dissipation, and Pr = reverse power dissipation This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = TJmax - r(t)Pr, where r(t) = Rthja. For other power applications further calculations must be performed.
1.0E+00 50% 20% 10% 5.0% 2.0% 1.0% Rtjl(t) = Rtjl*r(t)
1.0E-01
1.0E-02
1.0E-03
1.0E-04 0.00001 0.0001 0.001 0.01 0.1 t, TIME (s) 1.0 10 100 1000
R T, TRANSIENT THERMAL RESISTANCE (NORMALIZED)
Figure 9. Thermal Response -- Junction to Case
50% 20% 10% 5.0% 2.0%
1.0E+00
1.0E-01
1.0E-02
1.0E-03
1.0%
Rtjl(t) = Rtjl*r(t)
1.0E-04 0.00001 0.0001 0.001 0.01 0.1 t, TIME (s) 1.0 10 100 1000
Figure 10. Thermal Response -- Junction to Ambient http://onsemi.com
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SS22, SS24
PACKAGE DIMENSIONS
SMB CASE 403A-03 ISSUE E
HE E
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. DIM A A1 b c D E HE L L1 MIN 1.90 0.05 1.96 0.15 3.30 4.06 5.21 0.76 MILLIMETERS NOM MAX 2.13 2.41 0.10 0.15 2.03 2.11 0.23 0.30 3.56 3.81 4.32 4.57 5.44 5.59 1.02 1.27 0.51 REF MIN 0.075 0.002 0.077 0.006 0.130 0.160 0.205 0.030 INCHES NOM 0.084 0.004 0.080 0.009 0.140 0.170 0.214 0.040 0.020 REF MAX 0.095 0.006 0.083 0.012 0.150 0.180 0.220 0.050
b
D
A
L
L1
c
A1
SOLDERING FOOTPRINT*
2.261 0.089
2.743 0.108
2.159 0.085
SCALE 8:1
mm inches
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
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SS22, SS24
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT: N. American Technical Support: 800-282-9855 Toll Free Literature Distribution Center for ON Semiconductor USA/Canada P.O. Box 61312, Phoenix, Arizona 85082-1312 USA Phone: 480-829-7710 or 800-344-3860 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Fax: 480-829-7709 or 800-344-3867 Toll Free USA/Canada Phone: 81-3-5773-3850 Email: orderlit@onsemi.com ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative.
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SS24/D

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