Toshiba TOSHIBA Diode Silicon Epitaxial Planar Type 1SV328 Data Sheet
Summary
Discover this high-performance varactor diode, engineered for reliable VCO function in UHF band radio applications and compact tuners. This comprehensive manual provides critical technical data, including capacitance ratios and low series resistance metrics, guiding its use across diverse general electronics systems. It is essential reading for engineers designing consumer equipment, industrial controls, or communication systems who require optimal performance from small-footprint semiconductor components.
Page 1 Text Content
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1SV328
TOSHIBA Diode Silicon Epitaxial Planar Type
1SV328
VCO for UHF Band Radio
Unit: mm
High capacitance ratio: C1 V/C4 V = 2.8 (typ.) Low series resistance: rs = 0.55 Ω (typ.) Useful for small size tuner.
Maximum Ratings (Ta 25°C)
Characteristics Symbol Rating Unit
Reverse voltage VR 10 V Junction temperature Tj 125 °C Storage temperature range Tstg 55~125 °C
JEDEC ― JEITA ― TOSHIBA 1-1E1A
Weight: 0.004 g (typ.)
Electrical Characteristics (Ta 25°C)
Characteristics Symbol Test Condition Min Typ. Max Unit
Reverse voltage VR IR 1 A 10 V Reverse current IR VR 10 V 3 n A Capacitance C1 V VR 1 V, f 1 MHz 5.7 6.7 p F Capacitance C4 V VR 4 V, f 1 MHz 1.85 2.45 p F Capacitance ratio C1 V/C4 V 2.7 2.8 Series resistance rs VR 1 V, f 470 MHz 0.55 0.7
Note: Signal level when capacitance is measured: Vsig 100 m Vrms
Marking
Page Summary Contents For Toshiba TOSHIBA Diode Silicon Epitaxial Planar Type 1SV328 Data Sheet
Manual Details
| Brand | Toshiba |
|---|---|
| Pages | 4 |
| File Size | 90.77 KB |
| Published | June 04, 2026 |
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Frequently Asked Questions
What are the acceptable operating temperature ranges?
The junction temperature range must be within 125°C, and the storage temperature range is -55 to 125°C.
How is the capacitance ratio calculated or what is its typical value?
The capacitance ratio (C/C) is defined as the ratio C@2V, f=1MHz to C@4V, f=1MHz, with a typical value of 2.8.
What types of high-reliability equipment should not use this product?
It must not be used in 'Unintended Usage' devices like medical instruments or atomic energy control systems.