SD1477 RF POWER BIPOLAR TRANSISTORS VHF MOBILE APPLICATIONS FEATURES SUMMARY ■ 175 MHz Figure 1. Package ■ 12.5 VOLTS ■ COMMON EMITTER ■ POUT = 100 W MIN. WITH 6.0 dB GAIN DESCRIPTION The SD1477 is a 12.5 V Class C epitaxial silicon NPN planar transistor designed primarily for VHF FM communications. This device utilizes diffused emitter resistors to withstand extremely high VSWR under rated operating conditions, and is internally input matched to optimize power gain and efficiency over the 136 - 175 MHz band. .500 6L FL (M111) epoxy sealed Figure 2. Pin Connection 1. Collector 2. Base 3. Emitter 4. Emitter Table 1. Order Codes Order Codes Marking Package Packaging SD1477 SD1477 M111 PLASTIC TRAYS REV. 2 June 2004 1/9 SD1477 Table 2. Absolute Maximum Ratings (Tcase = 25°C) Symbol Parameter Value Unit VCBO Collector-Base Voltage 36 V VCEO Collector-Emitter Voltage 18 V VCES Collector-Emitter Voltage 36 V VEBO Emitter-Base Voltage 4.0 V Device Current 20 A Power Dissipation 270 W TJ Junction Temperature +200 °C TSTG Storage Temperature – 65 to +150 °C Value Unit 0.65 °C/W IC PDISS Table 3. Thermal Data Symbol RTH(j-c) Parameter Junction-Case Thermal Resistance ELECTRICAL SPECIFICATIONS (Tcase = 25°C) Table 4. Static Value Symbol Test Conditions Unit Min. Typ. Max. BVCBO IC = 50 mA; IE = 0 mA 36 — — V BVCES IC = 100 mA; VBE = 0 V 36 — — V BVCEO IC = 100 mA; IB = 0 mA 18 — — V BVEBO IE = 10 mA; IC = 0 mA 4.0 — — V ICES VCE = 15 V; IE = 0 mA — — 15 mA hFE VCE = 5 V; IC = 5 A 10 — — — Table 5. Dynamic Value Symbol 2/9 Test Conditions Unit Min. Typ. Max. POUT f = 175 MHz; PIN = 25 W; VCC = 12.5 V 100 — — W GP f = 175 MHz; PIN = 25 W; VCC = 12.5 V 6.0 — — dB COB f = 1 MHz; VCB = 12.5 V — 350 — pF SD1477 TYPICAL PERFORMANCE Figure 3. Power Output vs Frequency Figure 4. Power Output vs Power Input 120 VCC = 12.5 V 120 100 PIN = 25 W PIN = 20 W 100 PIN = 15 W 80 PIN = 10 W 60 VCC = 12.5 V 40 Power Output (watts) Power Output (watts) 136 MHz 175 MHz 80 60 40 20 20 130 140 150 160 170 Frequency (MHz) 180 0 0 5 10 15 20 25 Power Input (Watts) 3/9 SD1477 IMPEDANCE DATA Figure 5. Typical Input Impedance Figure 6. Typical Collector Load Impedance Collector Load Impedance (ohms) VCC = 136 MHz PIN = 20.0 W Source Impedance (ohms) Input Network +2 Zs R +1 0 Jx –1 VCC = 12.5 V PIN = 20 W Output Network +1.0 R ZCL +.5 0 –.5 Jx –1.0 –2 130 140 150 160 170 180 130 190 140 150 160 170 Frequency (MHz) Power Input (Watts) Table 6. Impedance Data 4/9 FREQ. ZIN (Ω) ZCL (Ω) 175 MHz 1.5 – j 0.9 0.5 – j 1.0 180 SD1477 TEST CIRCUIT Figure 7. Test Circuit 5/9 SD1477 Table 7. Test Circuit C1, C2 Arco 462 5 - 80pF C3, C4 Unelco 100pF, 350V C5, C6 Unelco 120pF, 350V C7, C8 Arco 463 9 - 180pF C9, C12 Unelco 1000pF, 350V C10 Erie .15µF, 200V Red Cap C11 25µF, 25V Electrolytic C13 10µF, 25V Electrolytic L1 1 Turn, #12, 1/4" I.D. L2, L3 1/2" 50Ω Stripline (.180" Wide) L4 1/8" Thick Copper Strap 1/4" Wide RCF1 1 1/2 Turns on Ferroxcube VK200/19-B RCF2 4 Turn #16 Enamel, 3/8" I.D., 3/8" Long RCF3 4 Turns #16 Enamel on T50-2 Torroid Board Material 3M-K6098, 1/16" Thick Figure 8. Test Circuit 6/9 SD1477 PACKAGE MECHANICAL Table 8. M111 Mechanical Data Symbol A millimeters Min Typ 3.43 B inches Max Min 4.06 0.150 1.14 Typ Max 0.160 0.045 C 5.33 5.59 0.210 0.220 D 21.21 21.97 0.835 0.865 E 5.08 5.33 0.200 0.210 F 12.45 12.95 0.490 0.510 G 0.08 0.18 0.003 0.007 H 3.18 0.125 I 18.29 18.54 0.720 0.730 J 24.64 24.89 0.970 0.980 K 2.41 2.67 0.095 0.105 L 3.81 4.32 0.150 M 7.11 0.170 0.280 Figure 9. M111 Package Dimensions Note: Drawing is not to scale. 7/9 SD1477 REVISION HISTORY Table 9. Revision History 8/9 Date Revision Description of Changes November-1992 1 First Issue 7-June-2004 2 Stylesheet update. No content change. SD1477 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2004 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 9/9