BD237 (NPN), BD234 (PNP), BD238 (PNP) Preferred Devices Plastic Medium Power Bipolar Transistors Designed for use in 5.0 to 10 W audio amplifiers and drivers utilizing complementary or quasi complementary circuits. Features 2.0 AMPERES POWER TRANSISTORS 25 WATTS * DC Current Gain - * * * http://onsemi.com hFE = 40 (Min) @ IC = 0.15 Adc Epoxy Meets UL 94 V0 @ 0.125 in ESD Ratings: Human Body Model, 3B; >8000 V Machine Model, C; >400 V Pb-Free Packages are Available* IIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIII IIIIIIIIII III IIII IIII III IIIIIIIIII III IIII IIII III IIIIIIIIII III IIII IIII III IIIIIIIIII III IIII IIIIIII IIII III IIIIIIIIII III IIIIIII III IIIIIIIIII III IIIIIII III IIIIIIIIII III IIIIIII III IIIIIIIIII III IIIIIII III III IIIIIII III IIIIIIIIII IIIIIIIIII III IIIIIII III IIIIIIIIII III IIIIIII III IIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIII IIIIIIIIIIII III IIIII III IIIIIIIIIIII III IIIII III IIIIIIIIIIII III IIIII III TO-225 CASE 77 STYLE 1 MAXIMUM RATINGS Symbol BD234 BD237 BD238 Collector-Emitter Voltage VCEO 45 80 Vdc Collector-Base Voltage VCBO 60 100 Vdc Emitter-Base Voltage VEBO 5.0 Vdc IC 2.0 Adc Base Current IB 1.0 Adc Total Device Dissipation @ TC = 25_C PD 25 W TJ, Tstg - 55 to + 150 _C Rating Collector Current Operating and Storage Junction Temperature Range Unit 3 2 1 MARKING DIAGRAM YWW BD23xG BD23x x Y WW G ORDERING INFORMATION THERMAL CHARACTERISTICS Characteristic Thermal Resistance, Junction-to-Case Symbol RqJC Max Unit _C/W 5.0 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. = Device Code = 4, 7 or 8 = Year = Work Week = Pb-Free Package Device BD234 BD234G BD237 BD237G BD238 BD238G Package Shipping TO-225 500 Units / Box TO-225 (Pb-Free) 500 Units / Box TO-225 500 Units / Box TO-225 (Pb-Free) 500 Units / Box TO-225 500 Units / Box TO-225 (Pb-Free) 500 Units / Box Preferred devices are recommended choices for future use and best overall value. *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. (c) Semiconductor Components Industries, LLC, 2005 November, 2005 - Rev. 14 1 Publication Order Number: BD237/D BD237 (NPN), BD234 (PNP), BD238 (PNP) IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIII IIIII IIIIII IIIIIII III IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIII IIIII IIIIII IIIIIII III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIIII IIIIII IIIIIII III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIII III IIIII IIIIII III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIII III IIIII IIIIII III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III III IIIIIIIIIIIIIIIII IIIII IIIIII IIII III IIIIIIIIIIIIIIIII IIIII IIIIII IIIIIII III III ELECTRICAL CHARACTERISTICS (TC = 25_C unless otherwise noted) Characteristic Collector-Emitter Sustaining Voltage (Note 1) (IC = 0.1 Adc, IB = 0) Symbol Type Min Max Unit V(BR)CEO BD237, BD238 BD234 80 45 - - Vdc BD237, BD238 BD234 - - 0.1 0.1 Collector Cutoff Current (VCB = 100 Vdc, IE = 0) (VCB = 60 Vdc, IE = 0) ICBO Emitter Cutoff Current (VBE = 5.0 Vdc, IC = 0) IEBO - - 1.0 hFE1 hFE2 - - 40 25 - Collector-Emitter Saturation Voltage (Note 1) (IC = 1.0 Adc, IB = 0.1 Adc) VCE(sat) - - 0.6 Vdc Base-Emitter On Voltage (Note 1) (IC = 1.0 Adc, VCE = 2.0 Vdc) VBE(on) - - 1.3 Vdc fT - 3.0 - MHz DC Current Gain (IC = 0.15 A, VCE = 2.0 V) (IC = 1.0 A, VCE = 2.0 V) mAdc mAdc - Current-Gain - Bandwidth Product (IC = 250 mAdc, VCE = 10 Vdc, f = 1.0 MHz) - 1. Pulse Test: Pulse Width x 300 ms, Duty Cycle x 2.0%. IC, COLLECTOR CURRENT (AMP) 10 The Safe Operating Area Curves indicate IC-VCE limits below which the device will not enter secondary breakdown. Collector load lines for specific circuits must fall within the applicable Safe Area to avoid causing a catastrophic failure. To insure operation below the maximum TJ, power-temperature derating must be observed for both steady state and pulse power conditions. 100 ms 1 ms 3 5 ms TJ = 150C 1 dc 0.3 0.1 3 1 10 BD236 BD237 30 100 VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS) Figure 1. Active Region Safe Operating Area VCE , COLLECTOR-EMITTER VOLTAGE (VOLTS) 1.0 0.8 IC = 0.1 A 0.25 A 0.5 A 1.0 A 0.6 TJ = 25C 0.4 0.2 0 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10 20 IB, BASE CURRENT (mA) Figure 2. Collector Saturation Region http://onsemi.com 2 30 50 100 200 BD237 (NPN), BD234 (PNP), BD238 (PNP) hFE , DC CURRENT GAIN (NORMALIZED) 1000 700 500 1.5 VCE = 2.0 V VOLTAGE (VOLTS) 300 200 TJ = + 150C 100 70 50 TJ = + 25C 30 20 TJ = - 55C r(t), NORMALIZED EFFECTIVE TRANSIENT THERMAL RESISTANCE 10 2.0 3.0 5.0 1.0 0.7 0.5 D = 0.5 0.3 D = 0.2 10 0.2 D = 0.1 0.1 0.07 0.05 D = 0.05 20 30 0.9 VBE(sat) @ IC/IB = 10 0.6 VBE @ VCE = 2.0 V 0.3 50 100 0 2.0 3.0 5.0 200 300 500 1000 2000 VCE(sat) @ IC/IB = 10 10 20 30 50 100 200 300 500 1000 2000 IC, COLLECTOR CURRENT (mA) IC, COLLECTOR CURRENT (mA) Figure 3. Current Gain Figure 4. "On" Voltages SINGLE PULSE qJC(t) = r(t) qJC qJC = 4.16C/W MAX qJC = 3.5C/W TYP D = 0.01 P(pk) D CURVES APPLY FOR POWER PULSE TRAIN SHOWN READ TIME AT t1 TJ(pk) - TC = P(pk) qJC(t) 0.03 0.02 0.01 0.01 TJ = 25C 1.2 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10 t, TIME or PULSE WIDTH (ms) Figure 5. Thermal Response http://onsemi.com 3 20 30 50 t1 t2 DUTY CYCLE, D = t1/t2 100 200 300 500 1000 BD237 (NPN), BD234 (PNP), BD238 (PNP) PACKAGE DIMENSIONS TO-225 CASE 77-09 ISSUE Z -B- U F Q -A- NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. 077-01 THRU -08 OBSOLETE, NEW STANDARD 077-09. C M 1 2 3 H DIM A B C D F G H J K M Q R S U V K J V G S R 0.25 (0.010) A M M B M D 2 PL 0.25 (0.010) M A M B M INCHES MIN MAX 0.425 0.435 0.295 0.305 0.095 0.105 0.020 0.026 0.115 0.130 0.094 BSC 0.050 0.095 0.015 0.025 0.575 0.655 5_ TYP 0.148 0.158 0.045 0.065 0.025 0.035 0.145 0.155 0.040 --- MILLIMETERS MIN MAX 10.80 11.04 7.50 7.74 2.42 2.66 0.51 0.66 2.93 3.30 2.39 BSC 1.27 2.41 0.39 0.63 14.61 16.63 5 _ TYP 3.76 4.01 1.15 1.65 0.64 0.88 3.69 3.93 1.02 --- STYLE 1: PIN 1. EMITTER 2. COLLECTOR 3. BASE 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 http://onsemi.com 4 ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. BD237/D