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Diodes Incorporated BZT52C8V2-7
- Part No.:
- BZT52C8V2-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C8V2-7.pdf
- Description:
- DIODE ZENER 8.2V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,127
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Product details
Overview
BZT52C8V2-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 8.2 V zener voltage, 5 mA test current, 15 Ω maximum zener impedance at 5 mA, 0.7 µA maximum reverse current at 6.2 V, and ±5% voltage tolerance. It delivers precise voltage regulation in low-power analog reference and overvoltage protection circuits for industrial sensor interfaces and power supply feedback loops.
For engineers reviewing the BZT52C8V2-7 datasheet, BZT52C8V2-7 pinout, BZT52C8V2-7 application, or BZT52C8V2-7 equivalent, key selection criteria include zener voltage accuracy (±5%), thermal resistance (338 °C/W), SOD123 package compatibility, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics, while the SOD123 package supports automated assembly and provides defined thermal performance on FR-4 PCBs with 1-inch copper pad layout.
The device exhibits a positive temperature coefficient of +3.2 mV/°C near its 8.2 V operating point, enabling predictable drift compensation in temperature-sensitive references. Reverse leakage remains below 0.7 µA at VR = 6.2 V, supporting low-quiescent-current designs in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V nominal, 7.7–8.7 V range at 5 mA - defines regulated output voltage with ±5% tolerance |
| Zener Impedance (ZZT) | 15 Ω max at 5 mA - limits output voltage variation under dynamic load changes |
| Power Dissipation (PD) | 370 mW at TA = +25°C - sets maximum continuous power handling on standard PCB layout |
| Reverse Current (IR) | 0.7 µA max at VR = 6.2 V - ensures minimal leakage in high-impedance bias networks |
| Temperature Coefficient | +3.2 mV/°C - quantifies voltage drift per degree Celsius near nominal operating point |
| Package | SOD123 - surface-mount outline with cathode band polarity marking and 0.010 g mass |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SOD123 package: molded plastic case, UL 94V-0 flammability rating, matte tin-plated alloy 42 leadframe, cathode band marking, 0.010 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated circuit; forms reference ground return path |
| Cathode | Reverse breakdown terminal / Zener voltage output node | Provides stable 8.2 V reference when biased above breakdown; marked by band on package |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable breakdown voltage distribution and tight parametric binning across production lots |
| 500 mW power dissipation @ TL = +75°C | Supports higher ambient operation when mounted on thermally enhanced pads or heatsinks |
| AEC-Q101 qualification | Validates suitability for automotive body electronics, infotainment power rails, and ADAS sensor supplies |
| Lead-free & halogen-free "Green" compliance | Meets RoHS 2 (2011/65/EU) and JEDEC J-STD-020 moisture sensitivity Level 1 requirements |
Applications
| Industrial Sensor Signal Conditioning | Automotive Power Supply Feedback |
|---|---|
Use Scenario: Stabilizing reference voltage for 4–20 mA transmitter ICs in process control transmitters. IC Role / Device Role / Timing Role: Zener diode provides precision 8.2 V shunt reference for op-amp biasing and DAC output scaling. Use Value: ±5% voltage tolerance and <15 Ω impedance ensure <0.1% full-scale error contribution in 12-bit analog signal chains. | Use Scenario: Regulating feedback node in isolated DC-DC converters powering automotive camera modules. IC Role / Device Role / Timing Role: Shunt regulator establishes stable 8.2 V reference for optocoupler-based secondary-side feedback. Use Value: AEC-Q101 qualification and +3.2 mV/°C TC enable reliable operation across -40°C to +125°C ambient ranges. |
| Consumer Device Overvoltage Clamp | Medical Diagnostic Equipment Reference |
Use Scenario: Protecting USB-C port VBUS monitoring circuitry against transient overvoltage events. IC Role / Device Role / Timing Role: Fast-acting clamp limiting input to 8.7 V peak during ESD or surge events. Use Value: 0.7 µA leakage at 6.2 V preserves battery life in always-on monitoring circuits. | Use Scenario: Generating stable bias for low-noise instrumentation amplifiers in portable ECG front-ends. IC Role / Device Role / Timing Role: Low-drift 8.2 V reference source for ADC reference buffer and PGA gain-setting networks. Use Value: Planar die consistency and 338 °C/W RθJA minimize thermal-induced offset drift in compact PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5231BS-7-F | Same 8.2 V nominal, but ±5% tolerance only at 20 mA test current; 30 Ω ZZT vs. 15 Ω | Higher impedance reduces regulation accuracy in low-current feedback paths | Select when cost sensitivity outweighs tight regulation needs and board space allows larger SOT-23 footprint |
| BZX84-C8V2 | Same 8.2 V, ±5%, but rated for 350 mW only; no AEC-Q101 qualification | Not suitable for automotive environments requiring extended temperature reliability validation | Prefer for commercial-grade consumer products where qualification overhead is unnecessary |
Compared with MMBZ5231BS-7-F and BZX84-C8V2, BZT52C8V2-7 offers superior regulation stability (15 Ω ZZT), automotive qualification, and tighter thermal derating behavior-making it optimal for safety-critical or high-precision analog subsystems.
Availability
BZT52C8V2-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive power supply feedback networks, and medical diagnostic equipment requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for BZT52C8V2-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, engineered for medium-current voltage regulation and overvoltage protection in cost-sensitive, high-volume applications requiring AEC-Q101 compliance and green manufacturing standards.
FAQ
What is the maximum power dissipation of BZT52C8V2-7 at +75°C ambient?
The device is rated for 500 mW power dissipation at lead temperature (TL) = +75°C, as specified in the Absolute Maximum Ratings table. This value assumes direct thermal coupling to a heatsink or thermally enhanced PCB pad, not ambient air convection alone.
Does BZT52C8V2-7 have polarity marking, and how is it identified?
Yes - the SOD123 package features a visible cathode band on the body, aligned with the cathode terminal. When viewed from the top with the band on the left, the left pin is cathode and the right pin is anode, per standard SOD123 orientation diagrams in the datasheet.
Is BZT52C8V2-7 suitable for use in automotive applications?
Yes - it is explicitly qualified to AEC-Q101 standards, covering stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing, making it approved for automotive body electronics and powertrain auxiliary circuits.
What is the typical zener voltage drift over temperature for BZT52C8V2-7?
The temperature coefficient is +3.2 mV/°C at the nominal 8.2 V operating point, meaning voltage increases by approximately 3.2 mV per degree Celsius rise in junction temperature - a value confirmed in the Electrical Characteristics table under "Temperature Coefficient @ IZTC".
BZT52C8V2-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52C8V2-7 FAQ
1.How can I place an order for BZT52C8V2-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C8V2-7 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 BZT52C8V2-7 reliable?
The price and inventory of BZT52C8V2-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C8V2-7 is usually 5 days.
3.What payment methods are accepted for BZT52C8V2-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C8V2-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C8V2-7?
BZT52C8V2-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C8V2-7 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 BZT52C8V2-7?
For technical support, including BZT52C8V2-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C8V2-7 requirements.
6.How does Aetrix verify that BZT52C8V2-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C8V2-7 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 BZT52C8V2-7 meets industry standards.
7.What is the process for return or replacement of BZT52C8V2-7?
All BZT52C8V2-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C8V2-7, 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 BZT52C8V2-7 part is unused and in its original packaging.
Return procedure for BZT52C8V2-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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