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Diodes Incorporated BZT52C8V2-7-F
- Part No.:
- BZT52C8V2-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C8V2-7-F.pdf
- Description:
- DIODE ZENER 8.2V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:14,150
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Product details
Overview
BZT52C8V2-7-F 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 leakage at 6.2 V, and ±5% voltage tolerance. It provides precision voltage regulation in low-power analog signal conditioning and power rail clamping circuits.
For engineers reviewing the BZT52C8V2-7-F datasheet, BZT52C8V2-7-F pinout, BZT52C8V2-7-F application, or BZT52C8V2-7-F equivalent, key selection criteria include zener voltage accuracy, dynamic impedance at operating current, thermal resistance (338 °C/W), and SOD123 package compatibility with automated PCB assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics and low leakage across production lots.
The device is rated for 370 mW power dissipation at +25°C ambient and derates linearly above +75°C case temperature, with junction-to-ambient thermal resistance of 338 °C/W on FR-4 PCB. It exhibits a positive temperature coefficient of +3.2 mV/°C near 8.2 V, enabling predictable drift compensation in bias networks.
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 window for reference or clamp function |
| Zener Impedance (ZZT) | 15 Ω max at 5 mA - determines output voltage stability under small-signal current variation |
| Reverse Leakage (IR) | 0.7 µA max at 6.2 V - limits error current in high-impedance bias/reference nodes |
| Power Dissipation (PD) | 370 mW at +25°C ambient - sets maximum continuous power handling on standard FR-4 layout |
| Thermal Resistance (RθJA) | 338 °C/W - quantifies junction temperature rise per watt on typical PCB pad; critical for thermal design margin |
| Temperature Coefficient | +3.2 mV/°C - enables predictable voltage drift correction in temperature-sensitive references |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking, 0.010 g mass, UL 94V-0 flammability rating, and matte tin-plated alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in regulation/clamp configuration; forms reference ground return path |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; polarity marked by band; carries full zener current during operation |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight process control for repeatable zener voltage distribution and low parametric spread |
| 500 mW peak pulse power capability | Supports transient overvoltage clamping without degradation during short-duration surges |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| SOD123 footprint compatibility | Enables drop-in replacement in legacy designs using industry-standard 1.55 mm × 2.65 mm land pattern |
Applications
| Power Supply Rail Clamp | ADC Reference Stabilizer |
|---|---|
Use Scenario: Clamping 12 V supply rail against transient spikes in automotive body control modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator to limit voltage excursion to safe levels for downstream logic ICs. Use Value: Prevents latch-up or damage to 5 V LDOs and microcontrollers during load-dump events up to 100 ms duration. |
Use Scenario: Providing stable 8.2 V reference for 12-bit SAR ADC in industrial sensor front-end. IC Role / Device Role / Timing Role: Low-noise voltage reference source for ADC VREF input, minimizing code-width variation. Use Value: Enables ±0.5 LSB INL performance by limiting reference drift to <±10 mV over 0–70°C ambient range. |
| Microcontroller Reset Circuit | Op-Amp Bias Network |
Use Scenario: Generating precise reset threshold for 3.3 V MCU in battery-powered IoT node. IC Role / Device Role / Timing Role: Zener-based comparator input reference defining brown-out detection level. Use Value: Delivers 2.8 V ±2% reset point with <1 µA quiescent current, extending battery life beyond 5 years. |
Use Scenario: Setting common-mode voltage for rail-to-rail op-amp driving 4–20 mA transmitter. IC Role / Device Role / Timing Role: Precision DC bias generator for op-amp input stage in current-loop interface. Use Value: Maintains 8.2 V bias within ±0.1% over temperature, ensuring loop accuracy better than 0.1% FSR. |
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 350 mW PD, 25 Ω ZZT, and SOT-23 package | Higher thermal resistance (400 °C/W) limits power handling on compact layouts | Select when board space is constrained and peak power <200 mW; verify thermal margin with copper pour |
| BZX84-C8V2 | 8.2 V nominal, 250 mW PD, 20 Ω ZZT, SOT-23 package, non-AEC-Q101 | Lacks automotive qualification and has higher leakage (1.0 µA @ 6.2 V) | Acceptable for commercial-grade consumer electronics where AEC-Q101 is not required |
Compared with MMBZ5231BS-7-F and BZX84-C8V2, BZT52C8V2-7-F offers superior thermal performance (338 °C/W vs ≥400 °C/W), tighter impedance (15 Ω vs ≥20 Ω), and guaranteed automotive qualification-making it optimal for thermally demanding or safety-critical applications.
Availability
BZT52C8V2-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, battery-powered IoT devices, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for BZT52C8V2-7-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, specializing in high-reliability components for automotive, industrial, and computing markets.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, designed specifically for cost-effective, high-volume voltage regulation and protection in space-constrained surface-mount applications.
FAQ
What is the maximum continuous power dissipation for BZT52C8V2-7-F at +75°C ambient?
At +75°C ambient, BZT52C8V2-7-F is rated for 500 mW power dissipation per its absolute maximum ratings table. This reflects the device's thermal design margin when mounted on a heatsink or high-copper PCB, distinct from its 370 mW rating at +25°C ambient on standard FR-4.
Does BZT52C8V2-7-F have a specified capacitance value?
No capacitance specification is provided in the official DS18004 datasheet for BZT52C8V2-7-F. The family's typical total capacitance ranges from ~10 pF to 100 pF depending on zener voltage, but no measured or guaranteed value is published for this specific part number.
Can BZT52C8V2-7-F be used in series to achieve higher regulated voltage?
Yes-multiple BZT52C8V2-7-F diodes may be connected in series to sum their zener voltages, provided current-limiting resistors are sized to ensure each device receives ≥5 mA and stays within its 370 mW power limit. Total voltage tolerance accumulates linearly (±5% per device).
Is the SOD123 package of BZT52C8V2-7-F compatible with reflow soldering per J-STD-020?
Yes-the SOD123 package is qualified for moisture sensitivity level 1 per J-STD-020, meaning it can withstand standard Pb-free reflow profiles (peak 260°C) without baking, provided storage conditions meet humidity requirements prior to assembly.
BZT52C8V2-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-F FAQ
1.How can I place an order for BZT52C8V2-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C8V2-7-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 BZT52C8V2-7-F reliable?
The price and inventory of BZT52C8V2-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C8V2-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C8V2-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C8V2-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C8V2-7-F?
BZT52C8V2-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C8V2-7-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 BZT52C8V2-7-F?
For technical support, including BZT52C8V2-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C8V2-7-F requirements.
6.How does Aetrix verify that BZT52C8V2-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C8V2-7-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 BZT52C8V2-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C8V2-7-F?
All BZT52C8V2-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C8V2-7-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 BZT52C8V2-7-F part is unused and in its original packaging.
Return procedure for BZT52C8V2-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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