Infineon Technologies BBY5502WH6327XTSA1
- Part No.:
- BBY5502WH6327XTSA1
- Manufacturer:
- Infineon Technologies
- Package:
- SC-80
- Datasheet:
-
BBY5502WH6327XTSA1.pdf
- Description:
- DIODE TUNING 16V 20MA SCD80
- Quantity:
- Payment:

- Shipping:

Inventory:6,278
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Product details
Overview
BBY5502WH6327XTSA1 from Infineon Technologies is a hyperabrupt silicon tuning diode in SC79 package, optimized for VCOs in mobile communications. It delivers 17.5–19.6 pF capacitance at 1 V reverse bias, <0.4 Ω series resistance at 470 MHz, and 2–3× capacitance ratio (CT₂/CT₁₀), enabling precise low-voltage frequency tuning in compact RF front-ends.
For engineers reviewing the BBY5502WH6327XTSA1 datasheet, BBY5502WH6327XTSA1 pinout, BBY5502WH6327XTSA1 application, or BBY5502WH6327XTSA1 equivalent, key selection criteria include its hyperabrupt C–V profile, sub-0.4 Ω RF series resistance, ±1% capacitance temperature stability at 1–10 V, and RoHS-compliant SC79 leadless package for high-density SMT layouts.
Technical Context
This tuning diode uses a hyperabrupt junction profile to achieve near-linear voltage-to-capacitance response over 1–10 V, critical for wideband VCO linearity. Its low series resistance (0.15–0.4 Ω typ./max at 470 MHz) minimizes phase noise degradation in oscillator tank circuits.
Designed specifically for mobile handset VCOs, it operates across –55 °C to +150 °C with <±1% capacitance drift over –30 °C to +70 °C at 1–10 V bias, and maintains IR ≤3 nA at VR = 15 V and ≤100 nA at 85 °C - ensuring stable tuning under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance @ 1 V | 17.5–19.6 pF - sets low-end VCO frequency and tank Q at minimum bias |
| Capacitance @ 10 V | 5.5–6.5 pF - defines high-frequency limit and tuning range span |
| Capacitance Ratio CT₂/CT₁₀ | 2.0–3.0 - enables ≥1.5:1 octave tuning bandwidth in LC oscillators |
| Series Resistance rS | 0.15–0.4 Ω @ 470 MHz - preserves tank circuit Q >100 at UHF frequencies |
| Reverse Voltage VR | 16 V max - supports headroom for transient suppression in battery-powered RF stages |
| Reverse Current IR | ≤3 nA @ 15 V, 25 °C - ensures minimal leakage-induced VCO drift |
| Operating Temp | –55 °C to +150 °C - qualified for automotive infotainment and industrial radio modules |
Pinout & Package
SC79 (SOD-523) single-anode, cathode-marked surface-mount package: 1.3 mm × 0.7 mm × 0.5 mm, 0.2 mm pitch, no leads, cathode indicated by white bar marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC bias input / RF AC ground | Connected to tuning voltage source; RF return path via low-inductance PCB trace |
| Cathode | RF signal node / tank connection | Directly interfaces with LC resonator; marking side identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Hyperabrupt junction profile | Enables linearized C–V slope for reduced VCO gain (Kvco) variation across tuning range |
| Low series resistance | Preserves resonator Q-factor above 400 MHz, directly limiting phase noise floor |
| Narrow capacitance spread | ±0.5 pF typical unit-to-unit variation at 1 V - reduces factory calibration effort |
| Low-voltage tuning capability | Full 3:1 capacitance range achieved below 10 V - compatible with 3.3 V/5 V supply rails |
| Pb-free RoHS compliance | Meets JEDEC J-STD-020 reflow profiles up to 260 °C peak, supporting lead-free assembly |
Applications
| Mobile Handset VCOs | ISM Band Transceivers |
|---|---|
Use Scenario: Tuning element in 800–2200 MHz voltage-controlled oscillators for LTE/WCDMA handsets. IC Role / Device Role / Timing Role: Varactor diode controlling resonant frequency of integrated LC tank in monolithic VCO ICs. Use Value: Hyperabrupt C–V linearity reduces Kvco drift to <10 MHz/V, easing PLL loop filter design and lock-time consistency. | Use Scenario: Frequency tuning in 915 MHz and 2.4 GHz ISM-band transceiver front-ends for smart meters and wireless sensors. IC Role / Device Role / Timing Role: Bias-controlled reactance in Colpitts oscillator topology for channel-hopping radios. Use Value: Sub-0.4 Ω rS maintains tank Q >80 at 2.4 GHz, enabling –120 dBc/Hz phase noise at 100 kHz offset. |
| Automotive Telematics Radios | Portable GPS Front-Ends |
Use Scenario: Local oscillator tuning in A-GPS/GNSS receivers embedded in vehicle infotainment systems. IC Role / Device Role / Timing Role: Temperature-stable varactor in L-band (1.575 GHz) VCOs operating from –40 °C to +105 °C ambient. Use Value: ±1% C drift over –30 °C to +70 °C eliminates need for digital compensation in cost-sensitive OEM designs. | Use Scenario: Compact VCO tuning in handheld GPS modules where board space limits discrete component count. IC Role / Device Role / Timing Role: Miniaturized tuning element replacing larger SOD-323 varactors without sacrificing C-range or Q. Use Value: SC79 footprint (1.3 × 0.7 mm) saves >40% PCB area vs. SOD-323 while maintaining identical electrical specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar tuning diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BBY55-02W | Same die, identical C–V curve and rS; differs only in packaging (SCD80 vs SC79) and reel quantity | SCD80 has 0.8 mm width vs SC79's 0.7 mm - impacts placement accuracy in ultra-fine-pitch layouts | Select BBY55-02W only when legacy SCD80 tooling or tape width compatibility is required |
| BAT54CW | Standard Schottky diode; no hyperabrupt profile - CT ratio <1.5×, rS >1.2 Ω at 470 MHz | Not suitable for VCO tuning; limited to low-frequency bias or ESD clamping roles | Avoid BAT54CW for any oscillator tuning function - insufficient C-range and excessive loss |
Compared with BBY55-02W, BBY5502WH6327XTSA1 offers tighter placement tolerance and higher density layout compatibility; versus BAT54CW, it provides 3× wider usable capacitance range and >3× lower RF loss - making it the sole viable choice for UHF VCO design.
Availability
BBY5502WH6327XTSA1 is available at Aetrix Electronics and suitable for mobile handset VCOs, ISM-band transceivers, and automotive telematics radios requiring stable component supply, tight capacitance matching, and high-reliability RF performance.
Supply support for BBY5502WH6327XTSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor leader specializing in power management, RF, and automotive ICs, with core expertise in silicon-based RF components and high-volume automotive qualification.
BBY5502WH6327XTSA1 belongs to Infineon's BBY55 hyperabrupt tuning diode family, engineered for low-voltage, high-linearity frequency synthesis in battery-powered mobile and wireless infrastructure equipment.
FAQ
What is the maximum reverse voltage rating for BBY5502WH6327XTSA1?
The absolute maximum reverse voltage is 16 V at TA = 25 °C. Operation above this level risks junction breakdown and irreversible capacitance shift. Derating is recommended above 85 °C ambient, where VR must not exceed 12 V per Infineon's reliability guidelines for sustained lifetime performance.
Does BBY5502WH6327XTSA1 require DC blocking capacitors in VCO tank circuits?
No - the device is designed for direct DC bias injection into the RF tank. Its anode serves as the bias node while the cathode connects to the resonant circuit; proper RF choke isolation on the anode line eliminates need for series blocking caps, preserving tank Q and layout simplicity.
How does temperature affect capacitance stability in BBY5502WH6327XTSA1?
Capacitance drift is specified as ±1% over –30 °C to +70 °C at 1 V, 2 V, 6 V, and 10 V bias points. At extremes (–55 °C or +150 °C), drift reaches ±4%, but full-rated operation remains valid - critical for automotive under-hood and industrial outdoor deployments.
Can BBY5502WH6327XTSA1 be used in place of BBY55-03W?
No - BBY55-03W uses SOD323 package with 1.8 nH series inductance and higher capacitance (22–24 pF @ 1 V). BBY5502WH6327XTSA1's SC79 package has 0.6 nH LS and lower C-range; substituting would detune oscillator center frequency and degrade phase noise due to mismatched rS and C–V slope.
BBY5502WH6327XTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Capacitance @ Vr, F:
- 6.5pF @ 10V, 1MHz
- Capacitance Ratio:
- 3.0
- Capacitance Ratio Condition:
- C2/C10
- Voltage - Peak Reverse (Max):
- 16 V
- Diode Type:
- Single
- Q @ Vr, F:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SCD-80
BBY5502WH6327XTSA1 FAQ
1.How can I place an order for BBY5502WH6327XTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BBY5502WH6327XTSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BBY5502WH6327XTSA1 reliable?
The price and inventory of BBY5502WH6327XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BBY5502WH6327XTSA1 is usually 5 days.
3.What payment methods are accepted for BBY5502WH6327XTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BBY5502WH6327XTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BBY5502WH6327XTSA1?
BBY5502WH6327XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BBY5502WH6327XTSA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BBY5502WH6327XTSA1?
For technical support, including BBY5502WH6327XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BBY5502WH6327XTSA1 requirements.
6.How does Aetrix verify that BBY5502WH6327XTSA1 is sourced from the original manufacturer or authorized distributors?
All BBY5502WH6327XTSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BBY5502WH6327XTSA1 meets industry standards.
7.What is the process for return or replacement of BBY5502WH6327XTSA1?
All BBY5502WH6327XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BBY5502WH6327XTSA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BBY5502WH6327XTSA1 part is unused and in its original packaging.
Return procedure for BBY5502WH6327XTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BBY5502WH6327XTSA1 Tags

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BBY5702VH6327XTSA1
Infineon Technologies

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BBY5602VH6327XTSA1
Infineon Technologies

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SMV1405-040LF
Skyworks Solutions Inc.

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BBY6502VH6327XTSA1
Infineon Technologies

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BBY6602VH6327XTSA1
Infineon Technologies

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BBY5802VH6327XTSA1
Infineon Technologies
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BB175X
NXP USA Inc.

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SMV1430-040LF
Skyworks Solutions Inc.

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SMV1273-079LF
Skyworks Solutions Inc.

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SMV1255-079LF
Skyworks Solutions Inc.

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SMV1213-079LF
Skyworks Solutions Inc.

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SMV1247-079LF
Skyworks Solutions Inc.
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