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Diodes Incorporated BZT52C3V0S-7-F
- Part No.:
- BZT52C3V0S-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C3V0S-7-F.pdf
- Description:
- DIODE ZENER 3V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:15,295
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Product details
Overview
BZT52C3V0S-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 3.0 V zener voltage (2.8–3.2 V range at 5 mA), 200 mW power dissipation, and SOD323 package. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for consumer, industrial, and automotive electronics.
For engineers reviewing the BZT52C3V0S-7-F datasheet, BZT52C3V0S-7-F pinout, BZT52C3V0S-7-F application, or BZT52C3V0S-7-F equivalent, key selection criteria include zener voltage tolerance (±3.3%), dynamic impedance (95 Ω @ 5 mA), reverse leakage (10 µA @ 1.0 V), temperature coefficient (−3.5 to 0 mV/°C), and AEC-Q101 qualification for automotive reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying current loads. Its planar die construction ensures consistent breakdown characteristics and low leakage, while the SOD323 package supports high-density PCB layouts and automated assembly.
The device exhibits a negative temperature coefficient between −3.5 and 0 mV/°C, making it suitable for temperature-compensated references when paired with positive-TC components. It is rated for operation from −65 °C to +150 °C and qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.0 V nominal, 2.8–3.2 V range at 5 mA test current - defines regulation setpoint with ±3.3% tolerance |
| Power Dissipation (PD) | 200 mW - limits maximum continuous power handling on FR-4 board with recommended pad layout |
| Zener Impedance (ZZT) | 95 Ω @ 1 kHz, 5 mA - determines regulation stiffness and output voltage variation under load changes |
| Reverse Leakage (IR) | 10 µA @ 1.0 V - sets minimum off-state current in voltage-clamp or reference applications |
| Temp. Coefficient (αVZ) | −3.5 to 0 mV/°C - enables predictable drift compensation in precision analog circuits |
| Package | SOD323 - 1.3 mm × 1.7 mm surface-mount outline with cathode band polarity marking |
| Qualification | AEC-Q101 qualified - validated for automotive use including thermal cycling, humidity, and mechanical stress |
Pinout & Package
SOD323 package: 2-terminal surface-mount device with molded plastic case (UL 94V-0), matte tin-plated alloy 42 leadframe, and cathode band marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated circuit; used as ground reference in shunt regulator topology |
| Cathode | Reverse breakdown terminal / Zener voltage output node | Connected to higher-potential side; delivers stable 3.0 V relative to anode when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight zener voltage distribution and repeatable dynamic impedance across production lots |
| AEC-Q101 qualification | Validates reliability for automotive infotainment, body control, and sensor interface modules |
| Lead-free & halogen-free "Green" compliance | Meets RoHS 2 (2011/65/EU) and JEDEC J-STD-020 Level 1 moisture sensitivity requirements |
| Small SOD323 footprint | Enables compact designs in space-constrained applications such as wearables and IoT edge nodes |
Applications
| Power Supply Rail Clamp | Low-Voltage Reference Generator |
|---|---|
Use Scenario: Clamping 3.3 V logic supply against transient overvoltage events in microcontroller I/O protection networks. IC Role / Device Role / Timing Role: Shunt voltage limiter placed between VCC and GND to divert surge current and hold rail within safe operating range. Use Value: Prevents latch-up or damage to downstream 3.3 V CMOS devices by limiting excursion to ≤3.2 V during ESD or inductive kick events. | Use Scenario: Providing stable 3.0 V reference for ADC biasing or comparator threshold setting in battery-powered sensors. IC Role / Device Role / Timing Role: Passive voltage reference source delivering fixed potential independent of load current up to 5 mA. Use Value: Enables <1% full-scale error in 10-bit ADC conversions without active regulation, reducing BOM count and quiescent current. |
| Automotive Sensor Biasing | USB Port Overvoltage Protection |
Use Scenario: Biasing NTC thermistors or Hall-effect sensors in engine control units operating across −40 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Temperature-stable voltage source for sensor excitation in harsh automotive environments. Use Value: Maintains <±15 mV drift over full temperature range due to controlled −3.5 to 0 mV/°C coefficient, improving sensor accuracy. | Use Scenario: Protecting USB 2.0 data lines (D+/D−) from >3.3 V faults caused by hot-plug transients or faulty chargers. IC Role / Device Role / Timing Role: Bidirectional clamping diode configured in back-to-back arrangement with matching unit. Use Value: Limits line voltage to 3.2 V peak without signal distortion, preserving 480 Mbps data integrity and meeting USB-IF ESD immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ3V0T1G | Zener voltage 3.0 V (2.8–3.2 V), 500 mW PD, SOD-123 package, −2.5 to +0.5 mV/°C TC | Higher power rating allows greater surge energy absorption but larger footprint | Select when higher transient energy handling is required and board space permits SOD-123 layout |
| BZX384-C3V0 | Zener voltage 3.0 V (2.8–3.2 V), 300 mW PD, SOD-323 package, −3.0 to +0.5 mV/°C TC, non-AEC-Q101 | Lacks automotive qualification; identical footprint but lower reliability assurance for vehicular use | Choose for cost-sensitive industrial or consumer designs where AEC-Q101 is not mandated |
Compared with MMSZ3V0T1G and BZX384-C3V0, BZT52C3V0S-7-F offers the optimal balance of AEC-Q101 qualification, SOD323 size, and tightly controlled −3.5 to 0 mV/°C temperature coefficient-making it preferred for automotive and space-constrained precision reference roles.
Availability
BZT52C3V0S-7-F is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable medical monitors, and industrial PLC I/O modules requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for BZT52C3V0S-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZT52 series belongs to Diodes' broad portfolio of surface-mount Zener diodes engineered for precision voltage regulation and overvoltage protection in automotive, industrial, and consumer applications.
FAQ
What is the maximum reverse current at 1.0 V for BZT52C3V0S-7-F?
The maximum reverse current (IR) is 10 µA at VR = 1.0 V, measured at 25 °C ambient. This low leakage ensures minimal power loss in standby modes and high impedance in off-state reference configurations, supporting ultra-low-power designs such as coin-cell-powered sensors.
Is BZT52C3V0S-7-F suitable for automotive applications?
Yes - it is fully qualified to AEC-Q101 standards, including stress testing for temperature cycling, humidity, and mechanical shock. Its −65 °C to +150 °C operating range and green, lead-free construction meet automotive OEM requirements for under-hood and cabin electronics.
How does the temperature coefficient affect voltage stability?
The temperature coefficient ranges from −3.5 to 0 mV/°C, meaning the zener voltage decreases slightly with rising temperature. In practice, this allows predictable drift compensation when combined with positive-TC resistors or silicon-based references in multi-component voltage references.
What is the thermal resistance from junction to ambient for this device?
The thermal resistance (RθJA) is 625 °C/W when mounted on an FR-4 PCB using Diodes Incorporated's recommended pad layout. This value determines the junction temperature rise under load: at 200 mW dissipation, ΔTJ = 125 °C, requiring derating above 25 °C ambient to stay within the 150 °C max rating.
BZT52C3V0S-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):
- 3 V
- Tolerance:
- ±7%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 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-323
BZT52C3V0S-7-F FAQ
1.How can I place an order for BZT52C3V0S-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C3V0S-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 BZT52C3V0S-7-F reliable?
The price and inventory of BZT52C3V0S-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 BZT52C3V0S-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C3V0S-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C3V0S-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C3V0S-7-F?
BZT52C3V0S-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C3V0S-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 BZT52C3V0S-7-F?
For technical support, including BZT52C3V0S-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C3V0S-7-F requirements.
6.How does Aetrix verify that BZT52C3V0S-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C3V0S-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 BZT52C3V0S-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C3V0S-7-F?
All BZT52C3V0S-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C3V0S-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 BZT52C3V0S-7-F part is unused and in its original packaging.
Return procedure for BZT52C3V0S-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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