BC857AT, BT, CT 45V PNP SMALL SIGNAL TRANSISTOR IN SOT523 Features Mechanical Data BVCEO > -45V IC = -100mA Collector Current Epitaxial Planar Die Construction Ultra-Small Surface Mount Package Complementary NPN Type: BC847AT, BT, CT Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. "Green" Device (Note 3) Qualified to AEC-Q101 Standards for High Reliability Case: SOT523 Case Material: Molded Plastic. Green Molding Compound. UL Flammability Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020 Terminals: Finish - Matte Tin Plated Leads. Solderable per MIL-STD-202, Method 208 Weight: 0.002 grams (Approximate) C SOT523 B E Top View Pin-Out Top View Device Symbol Ordering Information (Note 4) Product Compliance Marking Reel Size (inches) Tape Width (mm) Quantity per Reel BC857AT-7-F AEC-Q101 3V 7 8 3,000 BC857BT-7-F AEC-Q101 3W 7 8 3,000 BC857CT-7-F AEC-Q101 3G 7 8 3,000 Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated's definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/. XX YM K2N Date Code Key Year 2018 Code F Month Code 2019 G Jan 1 2020 H Feb 2 BC857AT, BT, CT Document number: DS30275 Rev. 10 - 2 Mar 3 2021 I Apr 4 YM Marking Information 2022 J May 5 XX = Product Type Marking Code YM = Date Code Marking Y or Y = Year (ex: F = 2018) M or M = Month (ex: 9 = September) 2023 K Jun 6 1 of 6 www.diodes.com 2024 L Jul 7 2025 M Aug 8 2026 N Sep 9 Oct O 2027 O Nov N 2028 P Dec D July 2018 (c) Diodes Incorporated BC857AT, BT, CT Absolute Maximum Ratings (@TA = +25C, unless otherwise specified.) Characteristic Symbol VCBO VCEO VEBO IC Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Value -50 -45 -6 -100 Unit V V V mA Value 150 833 -55 to +150 Unit mW C/W C Thermal Characteristics (@TA = +25C, unless otherwise specified.) Characteristic Power Dissipation (Note 5) Thermal Resistance, Junction to Ambient (Note 5) Operating and Storage Temperature Range Symbol PD RJA TJ, TSTG ESD Ratings (Note 6) Characteristic Electrostatic Discharge - Human Body Model Electrostatic Discharge - Machine Model Notes: Symbol Value Unit JEDEC Class ESD HBM ESD MM 4,000 400 V V 3A C 5. For a device mounted with the collector lead on minimum recommended pad layout 1oz copper that is on a single-sided 1.6mm FR-4 PCB; device is measured under still air conditions whilst operating in a steady-state. 6. Refer to JEDEC specification JESD22-A114 and JESD22-A115. Thermal Characteristics and Derating Information 100 P(pk), PEAK TRANSIENT POWER (W) PD, POWER DISSIPATION (mW) 250 200 150 100 50 0 0 25 50 75 100 125 150 175 (C) TA, AMBIENT TEMPERATURE ( ) Fig. 1, Max Power Dissipation vs. Ambient Temperature BC857AT, BT, CT Document number: DS30275 Rev. 10 - 2 200 2 of 6 www.diodes.com 80 Single Pulse R (t) = r(t) * R JA RJA JA(t) = r(t) * R JA 470 /W RRJA= =470/W JA 60 TJ - TA = P * RJA(t) Duty Cycle, D = t1/t2 40 20 0 0.0001 0.001 0.01 0.1 1 10 100 1,000 t1, PULSE DURATION TIME (s) Fig. 2 Single Pulse Maximum Power Dissipation July 2018 (c) Diodes Incorporated BC857AT, BT, CT Thermal Characteristics and Derating Information (Cont.) r(t), TRANSIENT THERMAL RESISTANCE 1 D = 0.7 D = 0.5 D = 0.3 0.1 D = 0.1 D = 0.9 D = 0.05 (t)==r(t) r(t)* *RRJA RRJA (t) JA JA RJA = 470 /W RJA = 470/W D = 0.02 0.01 D = 0.01 P(pk) D = 0.005 t2 TJ - TA = P * R JA(t) Duty Cycle, D = t1/t2 D = Single Pulse 0.001 0.0001 0.001 t1 0.01 0.1 1 t1, PULSE DURATION TIME (s) Fig. 3 Transient Thermal Response 10 100 1,000 Electrical Characteristics (@TA = +25C, unless otherwise specified.) Characteristic OFF CHARACTERISTICS (Note 7) Collector-Base Breakdown Voltage Collector-Emitter Breakdown Voltage Emitter-Base Breakdown Voltage ON CHARACTERISTICS (Note 7) Symbol Min Typ Max Unit BVCBO BVCEO BVEBO -50 -45 -6 V V V 125 220 420 290 520 250 475 800 hFE Collector-Emitter Saturation Voltage VCE(SAT) -- -- -- -300 -650 mV Base-Emitter Saturation Voltage VBE(SAT) -- -700 -900 -- -- mV Base-Emitter Voltage VBE(ON) -600 -- -- -- -- -- -- -750 -820 -15 -4 DC Current Gain Current Gain A B C -- -- mV nA A Collector-Emitter Cutoff Current ICBO SMALL SIGNAL CHARACTERISTICS Output Capacitance COBO -- 4.5 pF Current Gain-Bandwidth Product fT 100 MHz Noise Figure NF 10 dB Note: Test Condition IC = -100A, IE = 0 IC = -1mA, IB = 0 IE = -100A, IC = 0 VCE = -5V, IC = -2mA IC = -10mA, IB = -0.5mA IC = -100mA, IB = -5mA IC = -10mA, IB = -0.5mA IC = -100mA, IB = -5mA VCE = -5V, IC = -2mA VCE = -5V, IC = -10mA VCB = -30V VCB = -30V, TA = +150C VCB = -10V, f = 1MHz VCE = -5V, IC = -10mA, f = 100MHz IC = -0.2mA, VCE = -5V, RS = 2k, f = 1MHz, BW = 200Hz 7. Measured under pulsed conditions. Pulse width 300s. Duty cycle 2%. BC857AT, BT, CT Document number: DS30275 Rev. 10 - 2 3 of 6 www.diodes.com July 2018 (c) Diodes Incorporated BC857AT, BT, CT Typical Electrical Characteristics (@TA = +25C, unless otherwise specified.) 1,000 TAT=A=150 150 C IC IB = 10 VCE = 5V 0.4 hFE, DC CURRENT GAIN VCE(SAT), COLLECTOR TO EMITTER SATURATION VOLTAGE (V) 0.5 0.3 T AT=A=25 25C 0.2 TA = T150 A=150C 100 TTA=25 C A = 25 = -50 TTAA=-50 C 10 0.1 TTA=-50 C A = -50 0 0.1 1,000 10 1 100 IC, COLLECTOR CURRENT (mA) Fig. 2, Collector Emitter Saturation Voltage vs. Collector Current 1 1 10 100 1,000 IC, COLLECTOR CURRENT (mA) Fig. 3, DC Current Gain vs. Collector Current ft, GAIN BANDWIDTH PRODUCT (MHz) 1,000 VCE = 5V 100 10 10 100 IC, COLLECTOR CURRENT (mA) Fig. 4, Gain Bandwidth Product vs. Collector Current 1 BC857AT, BT, CT Document number: DS30275 Rev. 10 - 2 4 of 6 www.diodes.com July 2018 (c) Diodes Incorporated BC857AT, BT, CT Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. SOT523 E SOT523 Dim Min Max Typ A 0.60 0.80 0.75 A1 0.00 0.10 0.05 A3 0.45 0.65 0.50 b 0.15 0.30 0.22 c 0.10 0.20 0.12 D 1.50 1.70 1.60 E 1.45 1.75 1.60 E1 0.75 0.85 0.80 e 0.50 BSC e1 0.90 1.10 1.00 L 0.20 0.40 0.33 a 0 8 -All Dimensions in mm E1 b e1 D A2 A3 c A1 a e L Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. SOT523 Y1 C Y X1 BC857AT, BT, CT Document number: DS30275 Rev. 10 - 2 Dimensions C X X1 Y Y1 Value 1.29 0.40 0.70 0.51 1.80 X 5 of 6 www.diodes.com July 2018 (c) Diodes Incorporated BC857AT, BT, CT IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright (c) 2018, Diodes Incorporated www.diodes.com BC857AT, BT, CT Document number: DS30275 Rev. 10 - 2 6 of 6 www.diodes.com July 2018 (c) Diodes Incorporated