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Product Detailed Parameters
- Description：DIODE VAR CAP 30V 20MA SOD-323
- Series：-
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR),Cut Tape (CT)
- Capacitance @ Vr, F：2.2pF @ 28V, 1MHz
- Capacitance Ratio：11
- Capacitance Ratio Condition：C1/C28
- Voltage - Peak Reverse (Max)：30 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-76, SOD-323
- Supplier Device Package：PG-SOD323-3D
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Overview
The BB545E7904HTSA1 is a single varactor diode manufactured by Infineon Technologies, designed for surface-mount applications in the SOD-323 package. It features a maximum reverse voltage of 30 V and a minimum capacitance of 1.9 pF at zero bias. The device provides a minimum tuning ratio of 8.2 under test conditions ranging from 1 V to 28 V. It operates within a temperature range of -55 °C to +150 °C and holds AEC-Q100 qualification for automotive reliability.
Feature Summary
- Single-diode configuration optimized for compact circuit layouts
- AEC-Q100 qualified for automotive-grade reliability standards
- High thermal stability supporting operation up to 150 °C
Applications
- UHF-TV tuners
- General-purpose RF tuning circuits
- Frequency modulation modules
Procurement Notes
Verify component authenticity through authorized distributors or official Infineon channels. Confirm the specific suffix HTSA1 matches the required tape-and-reel packaging format. Check current lifecycle status as discontinuation notices may affect long-term availability. Ensure compliance with RoHS directives for the intended market.
Selection Notes
Select this component when a low-capacitance varactor with high tuning ratios is required for UHF frequency bands. The SOD-323 package suits space-constrained designs. Verify that the 30 V reverse voltage rating exceeds the maximum expected tuning voltage in the application circuit to prevent breakdown.
Part Context
This part belongs to the BB535/BB545 series of silicon varactor diodes. While sharing similar electrical characteristics, the BB545 variant typically offers lower minimum capacitance compared to the BB535, making it suitable for higher frequency tuning ranges. Both are widely used in broadcast receiver front-ends.
Replacement Considerations
The BB535E7904HTSA1 is a related model within the same family but exhibits different capacitance values. Cross-reference tools should be used to confirm functional equivalence if substituting. No direct public substitute part numbers are confirmed.
