MMBTA42 Small signal NPN transistor Datasheet - production data Features Miniature SOT-23 plastic package for surface mounting circuits Tape and reel packaging The PNP complementary type is MMBTA92 Applications SOT-23 Video amplifier circuits (rgb cathode current control) Telephone wireline interface (hook switches, dialer circuits) Description Figure 1: Internal schematic diagram The device is manufactured in Epitaxial Planar technology. Table 1: Device summary May 2014 Order code Marking Package Packaging MMBTA42 A42 SOT-23 tape and reel DocID8843 Rev 4 This is information on a product in full production. 1/8 www.st.com Contents MMBTA42 Contents 1 Absolute maximum ratings............................................................. 3 2 Electrical characteristics ................................................................ 4 3 Package mechanical data ............................................................... 5 3.1 4 2/8 SOT-23 mechanical data .................................................................. 5 Revision history .............................................................................. 7 DocID8843 Rev 4 MMBTA42 1 Absolute maximum ratings Absolute maximum ratings (Tcase = 25C unless otherwise specified) Table 2: Absolute maximum rating Symbol Parameter Value Unit VCBO Collector-base voltage (IE = 0) 300 V VCEO Collector-emitter voltage (IB = 0) 300 V VEBO Emitter-base voltage (IC = 0) 6 V IC Collector current 0.5 A ICM Collector peak current (tP < 5ms) 0.6 A Ptot Total dissipation at Tamb = 25C Tstg Storage temperature TJ Max. operating junction temperature 350 mW -65 to 150 C 150 C Table 3: Thermal data Symbol Rthj-amb Parameter Thermal resistance junction-ambient max (1) Value Unit 357.1 C/W Notes: (1) Device mounted on PCB area of 1 cm 2. DocID8843 Rev 4 3/8 Electrical characteristics 2 MMBTA42 Electrical characteristics (Tcase = 25C unless otherwise specified) Table 4: Electrical characteristics Symbol ICBO Parameter Test conditions Typ. Max. Unit 100 Collector cut-off current (IE =0) VCB = 200 V Collector-base breakdown voltage (IE =0) IC = 100 A 300 V Collector-emitter breakdown voltage (IB =0) IC = 1 mA 300 V V(BR)EBO Emitter-base breakdown voltage (IC =0) IC = 100 A 6 V VCE(sat) Collector-emitter saturation voltage IC = 20 mA; IB = 2 mA 0.5 V VBE(sat) Base-emitter saturation voltage IC = 20 mA; IB = 2 mA 0.9 V DC current gain IC = 1 mA, VCE = 10 V 25 IC = 10 mA, VCE = 10 V 40 IC = 30 mA, VCE = 10 V 40 Transition frequency IC = 10 mA, VCE = 20 V f = 100 MHz 50 Collector-base capacitance (IE = 0) VCB = 20 V; f = 1 MHz V(BR)CBO V(BR)CEO hFE fT CCBO (1) Notes: (1) 4/8 Min. Pulse test: pulse duration = 300 s, duty cycle 1.5 % DocID8843 Rev 4 z 3 nC MMBTA42 3 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of (R) (R) ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. (R) ECOPACK is an ST trademark. 3.1 SOT-23 mechanical data Figure 2: SOT-23 mechanical drawing DocID8843 Rev 4 5/8 Package mechanical data MMBTA42 Table 5: SOT-23 mechanical data Dim. mm Min. Typ. A 0.89 1.40 A1 0 0.10 B 0.30 0.51 C 0.085 0.18 D 2.75 3.04 e 0.85 1.05 e1 1.70 2.10 E 1.20 1.75 H 2.10 L 3.00 0.60 S 0.35 0.65 L1 0.25 0.55 a 0 8 Figure 3: SOT-23 recommended footprint Dimensions are in mm. 6/8 Max. DocID8843 Rev 4 MMBTA42 4 Revision history Revision history Table 6: Document revision history Date Revision Changes 06-Jan-2003 2 08-Nov-2007 3 Updated mechanical data. 07-May-2014 4 Updated Section 4: "Package mechanical data". DocID8843 Rev 4 7/8 MMBTA42 Please Read Carefully Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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