Schottky Barrier Diode Datasheet RB481K / RB481KFH Dimensions (Unit : mm) Low current rectification 2.00.2 Each lead has same dimension 0.25 0.1 0.05 (3) Land size figure (Unit : mm) 0.6 0.150.05 0.9MIN Application 1) Ultra small mold type. 2.10.1 1.250.1 Features 1.6 (2) (UMD4) 0.1Min 00.1 (4) (1) 0.65 0.65 1.3 UMD4 0.7 1.30.1 0.90.1 2) Low VF Structure 3) High reliability ROHM : UMD4 JEDEC : SOT-343 JEITA : SC-82 Construction Taping specifications (Unit : mm) dot (year week factory) 1Pin Mark Silicon epitaxial planar 1.55 0.05 2.00.05 0.30.1 8.0 0.2 2.4 0.1 1.1 0.1 4.00.1 2.20.1 0 0.5 5.5 0.2 2.45 0.1 2.4 0.1 3.5 0.05 1.75 0.1 4.00.1 1.15 0.1 Absolute maximum ratings (Ta = 25C) Parameter Symbol Limits Unit Reverse voltage (repetitive peak) VRM 30 V Reverse voltage (DC) VR 30 V Average rectified forward current (*1) Io 200 mA IFSM 1 A Junction temperature Tj 125 C Storage temperature Tstg 40 to 125 C Forward current surge peak (60Hz1cyc) (*1) (*1) Rating of per diode Electrical characteristics (Ta= 25C) Parameter Forward voltage Reverse current www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. Symbol Min. Typ. Max. Unit Conditions VF1 - - 0.28 V IF=10mA VF2 - - 0.33 V IF=100mA VF3 - - 0.43 V IF=100mA VF4 - - 0.50 V IF=100mA IR - - 30 1/4 A VR=10V 2012.12 - Rev.D Data Sheet RB481K / RB481KFH 100000 1000 Ta = 125C 10000 100 Ta = 125C REVERSE CURRENT : IR(A) FORWARD CURRENT : IF(mA) Ta = 75C 10 Ta = 25C 1 Ta = 25C 0.1 0.01 1000 100 Ta = 75C 10 Ta = 25C 1 0.1 0.001 Ta = 25C 0.01 0 100 200 300 400 0 500 FORWARD VOLTAGE : VF(mV) VF-IF CHARACTERISTICS 10 100 Ta=25C IF=200mA n=10pcs FORWARD VOLTAGE : VF(mV) CAPACITANCE BETWEEN TERMINALS : Ct(pF) 440 10 1 AVE : 421.0mV 430 420 410 400 0 5 10 15 20 REVERSE VOLTAGE : VR(V) VR-Ct CHARACTERISTICS VF DISPERSION MAP 50 20 Ta=25C VR=10V n=30pcs 40 35 30 25 20 AVE : 4.775A 10 18 17 16 14 13 12 11 0 10 IR DISPERSION MAP AVE : 14.33pF 15 5 www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. Ta=25C f=1MHz VR=0V n=10pcs 19 CAPACITANCE BETWEEN TERMINALS : Ct(pF) 45 REVERSE CURRENT : IR(A) 30 450 f = 1MHz 15 20 REVERSE VOLTAGE : VR(V) VR-IR CHARACTERISTICS Ct DISPERSION MAP 2/4 2012.12 - Rev.D Data Sheet RB481K / RB481KFH 20 10 IFSM 8.3ms 8.3ms 8.3ms 15 PEAK SURGE FORWARD CURRENT : IFSM(A) PEAK SURGE FORWARD CURRENT : IFSM(A) IFSM 1cyc. 10 AVE : 5.60A 5 0 1cyc. 5 0 1 10 100 NUMBER OF CYCLES IFSM-CYCLE CHARACTERISTICS IFSM DISPERSION MAP 10 1000 Rth(j-a) TRANSIENT THAERMAL IMPEDANCE : Rth (C/W) IFSM PEAK SURGE FORWARD CURRENT : IFSM(A) time 5 Rth(j-c) 100 Mounted on epoxy board IM=10mA IF=100mA time 1ms 300s 10 0.001 0 1 10 100 TIME : t(ms) IFSM-t CHARACTERISTICS 0.1 10 1000 TIME : t(s) Rth-t CHARACTERISTICS 0.2 0.5 0.4 D = 1/2 REVERSE POWER DISSIPATION : PR (W) FORWARD POWER DISSIPATION : Pf(W) 0.15 Sin(=180) 0.1 DC 0.05 0.3 DC 0.2 D = 1/2 Sin(=180) 0.1 0 0 0 0.1 0.2 0.3 0.4 AVERAGE RECTIFIED FORWARD CURRENT : Io(A) Io-Pf CHARACTERISTICS www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. 0.5 0 10 20 30 REVERSE VOLTAGE : VR(V) VR-PR CHARACTERISTICS 3/4 2012.12 - Rev.D Data Sheet RB481K / RB481KFH 0.5 Io 0A 0V 0V AVERAGE RECTIFIED FORWARD CURRENT : Io(A) T 0.3 VR D=t/T VR=15V Tj=125C D = 1/2 0.2 0.1 VR t 0.4 AVERAGE RECTIFIED FORWARD CURRENT : Io(A) t DC 0.4 Io 0A 0.5 T DC D=t/T VR=15V Tj=125C 0.3 D = 1/2 0.2 Sin(=180) 0.1 Sin(=180) 0 0 0 25 50 75 100 125 0 AMBIENT TEMPERATURE : Ta(C) DERATING CURVE (Io-Ta) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. 25 50 75 100 125 CASE TEMPARATURE : Tc(C) DERATING CURVE (Io-Tc) 4/4 2012.12 - Rev.D Notice Notes 1) The information contained herein is subject to change without notice. 2) Before you use our Products, please contact our sales representative and verify the latest specifications : 3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM. 4) Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information. 6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document. 7) The Products specified in this document are not designed to be radiation tolerant. 8) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. 9) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters. 10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein. 11) ROHM has used reasonable care to ensur the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information. 12) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations. 13) When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act. 14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM. 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