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Diodes Incorporated BZT52C8V2SQ-7-F
- Part No.:
- BZT52C8V2SQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C8V2SQ-7-F.pdf
- Description:
- DIODE ZENER 8.2V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,985
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Product details
Overview
BZT52C8V2SQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 8.2 V breakdown voltage at 5 mA, 15 Ω dynamic impedance at test current, and 200 mW power dissipation in SOD323 package. It provides precision voltage regulation for low-power biasing, reference, and overvoltage protection circuits in automotive and industrial control modules.
For engineers reviewing the BZT52C8V2SQ-7-F datasheet, BZT52C8V2SQ-7-F pinout, BZT52C8V2SQ-7-F application, or BZT52C8V2SQ-7-F equivalent, key selection criteria include Zener voltage tolerance (±6.1%), temperature coefficient (+3.2 mV/°C), reverse leakage (<0.5 µA at 6.2 V), cathode-band polarity marking, and AEC-Q101 qualification for automotive use.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its planar die construction ensures consistent Zener characteristics, while the SOD323 package supports high-density PCB layouts and automated reflow assembly.
The device exhibits a positive temperature coefficient of +3.2 mV/°C above 6 V, enabling predictable drift compensation in reference designs. With 15 Ω Zener impedance at 5 mA and <0.5 µA reverse current at 6.2 V, it delivers tight regulation for low-current analog sensing and microcontroller reset supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V nominal, 7.7–8.7 V range at IZT = 5 mA - defines regulated output voltage tolerance |
| Power Dissipation (PD) | 200 mW - limits continuous operating current to ~24 mA at 8.2 V |
| Zener Impedance (ZZT) | 15 Ω at f = 1 kHz, IZT = 5 mA - determines regulation stiffness under load transients |
| Reverse Leakage (IR) | <0.5 µA at VR = 6.2 V - ensures minimal quiescent current in standby bias networks |
| Temperature Coefficient | +3.2 mV/°C - enables predictable voltage drift correction in temperature-critical references |
| Package | SOD323 - 1.3 mm × 1.7 mm footprint with 0.3 mm lead pitch, compatible with IPC-7351B standard |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including HTOL, TCT, and ESD HBM ≥2 kV |
Pinout & Package
SOD323 package: 2-terminal surface-mount device with cathode band marking on one end; total weight 0.0049 g; UL 94V-0 rated molded plastic case; matte tin-plated alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail in shunt regulator configuration |
| Cathode | Reverse breakdown terminal / regulated output node | Connected to input supply via current-limiting resistor; delivers stable 8.2 V to load |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and low parametric spread across production lots |
| AEC-Q101 qualification | Validates suitability for automotive body electronics, infotainment power rails, and ADAS sensor biasing |
| Halogen- and antimony-free "Green" material | Meets JESD22-A112 and IEC 61249-2-21 standards for environmentally compliant manufacturing |
| Moisture sensitivity Level 1 | Eliminates bake requirements prior to reflow, reducing assembly cost and process complexity |
Applications
| Automotive Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 8.2 V reference to analog front-end of pressure or temperature sensors in engine control units. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise bias point for sensor signal conditioning amplifiers. Use Value: Maintains ±1% reference stability over −40°C to +125°C, ensuring sensor accuracy meets ISO 26262 ASIL-B requirements. | Use Scenario: Generating clean, temperature-stable reset threshold for 3.3 V or 5 V microcontrollers in telematics modules. IC Role / Device Role / Timing Role: Zener-based voltage detector triggering POR (power-on reset) logic when supply exceeds 8.2 V. Use Value: Low 0.5 µA leakage prevents battery drain during deep sleep; AEC-Q101 rating ensures reset integrity across vehicle lifecycle. |
| Industrial Power Supply Monitoring | USB-C Port Overvoltage Protection |
Use Scenario: Monitoring 12 V rail in programmable logic controller (PLC) power supplies to detect overvoltage faults. IC Role / Device Role / Timing Role: Clamping element in comparator-based OVLO (overvoltage lockout) circuit with hysteresis. Use Value: 15 Ω Zener impedance enables fast response to transient surges; SOD323 footprint allows placement near input connectors. | Use Scenario: Protecting USB-C port data lines and CC pins from accidental 12 V adapter misconnection. IC Role / Device Role / Timing Role: Standby shunt clamp absorbing fault energy before TVS activation in multi-stage protection schemes. Use Value: 8.2 V breakdown voltage sits between USB-C VCONN (up to 5 V) and common fault levels, preventing false triggering while clamping early. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5238BT1G | 8.2 V nominal, 500 mW PD, SOD-123 package, ±5% tolerance | Higher power handling but larger footprint; not AEC-Q101 qualified | Select for non-automotive, higher-current biasing where thermal margin >200 mW is required |
| BZX384-C8V2 | 8.2 V nominal, 300 mW PD, SOD-323 package, ±5% tolerance, no AEC-Q101 | Same footprint but lacks automotive qualification and has higher leakage (≤3 µA @ 6.2 V) | Acceptable for commercial-grade instrumentation where AEC-Q101 is not mandated |
Compared with MMSZ5238BT1G and BZX384-C8V2, BZT52C8V2SQ-7-F offers tighter voltage tolerance (±6.1% vs. ±5%), lower leakage, and AEC-Q101 validation-making it the preferred choice for automotive reset and sensor reference where long-term reliability and specification compliance are mandatory.
Availability
BZT52C8V2SQ-7-F is available at Aetrix Electronics and suitable for automotive sensor biasing, microcontroller reset circuits, industrial power monitoring, and USB-C overvoltage protection requiring stable component supply and full traceability.
Supply support for BZT52C8V2SQ-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, serving automotive, industrial, computing, and consumer markets with high-reliability components since 1960.
The BZT52C series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, designed specifically for precision voltage reference and overvoltage protection in harsh-environment automotive electronics.
FAQ
What is the maximum continuous Zener current for BZT52C8V2SQ-7-F at 25°C?
The device is rated for 200 mW power dissipation. At its nominal 8.2 V Zener voltage, this corresponds to a maximum continuous Zener current of approximately 24.4 mA (200 mW ÷ 8.2 V). Derating applies above 25°C per the published power derating curve.
Is BZT52C8V2SQ-7-F suitable for use in a 12 V automotive system's overvoltage detection circuit?
Yes. With an 8.2 V breakdown voltage and AEC-Q101 qualification, it functions reliably as a shunt reference in comparator-based OVLO circuits monitoring 12 V systems. Its +3.2 mV/°C temperature coefficient allows predictable threshold shift across −40°C to +125°C.
How does the SOD323 package affect PCB layout and thermal performance?
The SOD323 package measures 1.3 mm × 1.7 mm with 0.3 mm lead pitch, enabling high-density routing. Thermal resistance junction-to-ambient is 625°C/W on FR-4 with recommended pad layout, limiting usable power at elevated ambient temperatures unless board-level copper area is increased.
Does BZT52C8V2SQ-7-F have a specified capacitance value for high-frequency noise filtering?
No specific capacitance is listed in the datasheet for BZT52C8V2SQ-7-F. However, Figure 4 shows typical total capacitance for 8.2 V Zeners is ~15 pF at 1 V reverse bias. This makes it suitable for low-speed voltage reference use but not for RF bypass or high-frequency filtering.
BZT52C8V2SQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±6.1%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZT52C8V2SQ-7-F FAQ
1.How can I place an order for BZT52C8V2SQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C8V2SQ-7-F 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 BZT52C8V2SQ-7-F reliable?
The price and inventory of BZT52C8V2SQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C8V2SQ-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C8V2SQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C8V2SQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C8V2SQ-7-F?
BZT52C8V2SQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C8V2SQ-7-F 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 BZT52C8V2SQ-7-F?
For technical support, including BZT52C8V2SQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C8V2SQ-7-F requirements.
6.How does Aetrix verify that BZT52C8V2SQ-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C8V2SQ-7-F 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 BZT52C8V2SQ-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C8V2SQ-7-F?
All BZT52C8V2SQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C8V2SQ-7-F, 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 BZT52C8V2SQ-7-F part is unused and in its original packaging.
Return procedure for BZT52C8V2SQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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