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SD1728 (TH430)
RF & MICROWAVE TRANSISTORS HF SSB APPLICATION
* OPTIMIZED FOR SSB * 30 MHz * 50 V * IMD = -30 dB * GOLD METALLIZATION * COMMON EMITTER * POUT = 250 W PEP WITH 14.5 dB GAIN
M177 epoxy sealed ORDER CODE SD1728 BRANDING TH430
DESCRIPTION The SD1728 is a 50 V epitaxial silicon NPN planar transistor designed primarily for SSB and VHF communications. This device utilizes emitter ballasting for improved ruggedness and reliability.
PIN CONNECTION
4
1
3 1. Collector 2. Emitter
2
3. Base 4. Emitter
ABSOLUTE MAXIMUM RATINGS (TCASE = 25 C)
Symbol VCBO VCEO VEBO IC PDISS Tj TSTG Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Max. Operating Junction Temperature Storage Temperature Parameter Value 110 55 4.0 40 330 200 -65 to +150 Unit V V V A W C C
THERMAL DATA
Rth(j-c) Junction -Case Thermal Resistance 0.4 C/W
July, 1 2003
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ELECTRICAL SPECIFICATION (TCASE = 25 C) STATIC
Symbol BVCES BVCEO BVEBO ICEO ICES hFE IC = 200 mA IC = 200 mA IE = 20 mA VCE = 30 V VCE = 60 V VCE = 6 V Test Conditions VBE = 0 V IB = 0 mA IC = 0 mA IE = 0 mA IE = 0 mA IC = 10 A 15 Min. 110 55 4.0 1.5 10 10 45 Typ. Max. Unit V V V mA mA
DYNAMIC
Symbol POUT GP* IMD* C* COB
*
Test Conditions VCC = 50 V VCC = 50 V VCC = 50 V VCC = 50 V VCB = 50 V ICQ = 150 mA f = 30 MHz
Min. 250 14.5
Typ.
Max.
Unit W dB
ICQ = 150 mA POUT = 250 W PEP ICQ = 150 mA POUT = 250 W PEP ICQ = 150 mA POUT = 250 W PEP f = 1 MHz
-30 37 360
dBc % pF
Two Tone Method; f1 = 30.00 MHz; f2 = 30.001 MHz In Class C: GP Mi n. 13.5 dB, Efficiency 65%@ 30 MHz GP Mi n. 10 dB, Efficiency 57%@ 70 MHz
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TYPICAL PERFORMANCE
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TYPICAL PERFORMANCE (cont'd)
TEST CIRCUIT SSB - CLASS AB - 30 MHz
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TYPICAL PERFORMANCE
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TYPICAL PERFORMANCE (cont'd)
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SD1728 (TH430)
IMPEDANCE DATA (TYPICAL)
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SD1728 (TH430)
BIAS CIRCUIT
MOUNTING CIRCUIT
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SD1728 (TH430) M177 (.550 DIA 4/L N/HERM W/FLG) MECHANICAL DATA
mm Inch MAX 5.97 6.96 22.10 28.96 14.10 0.18 2.74 4.32 7.11 27.43 15.88 28.45 16.13 1.080 0.625 MIN. 0.225 0.265 0.860 1.130 0.545 0.003 0.098 0.150 TYP. MAX 0.235 0.275 0.870 1.140 0.555 0.007 0.108 0.170 0.280 1.120 0.635
DIM.
A B C D E F G H I J K
MIN. 5.72 6.73 21.84 28.70 13.84 0.08 2.49 3.81
TYP.
Controlling Dimension: Inches
1011012D
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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 registered trademark of STMicroelectronics (R) 2003 STMicroelectronics - All Rights Reserved All other names are the property of their respective owners. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com
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