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Diodes Incorporated BZT52C3V6S-7
- Part No.:
- BZT52C3V6S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C3V6S-7.pdf
- Description:
- DIODE ZENER 3.6V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,850
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Product details
Overview
BZT52C3V6S-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 3.6 V zener voltage (±0.2 V tolerance at 5 mA), 200 mW power dissipation, 90 Ω zener impedance at test current, and SOD323 package. It provides precision voltage regulation in low-power biasing, reference, and overvoltage protection circuits for consumer and industrial power management systems.
For engineers reviewing the BZT52C3V6S-7 datasheet, BZT52C3V6S-7 pinout, BZT52C3V6S-7 application, or BZT52C3V6S-7 equivalent, key selection criteria include zener voltage accuracy at 5 mA, thermal resistance (625 °C/W), reverse leakage (<5 µA at 1.0 V), temperature coefficient (−3.5 to 0 mV/°C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode with a tightly controlled 3.6 V nominal regulation point, specified at IZT = 5 mA. Its planar die construction and SOD323 package enable stable performance across −65 °C to +150 °C ambient operating range and support automated SMT assembly.
The device exhibits low dynamic impedance (90 Ω at 1 kHz) and minimal temperature drift (−3.5 to 0 mV/°C), making it suitable for precision voltage references where load and thermal variations must be minimized without active compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.6 V nominal, 3.4–3.8 V range at 5 mA - defines stable regulation threshold for clamping or reference use |
| Power Dissipation (PD) | 200 mW - limits maximum continuous power handling on standard FR-4 PCB with recommended pad layout |
| Zener Impedance (ZZT) | 90 Ω at 1 kHz, 5 mA - determines output voltage stability under varying load current |
| Reverse Leakage (IR) | <5 µA at VR = 1.0 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Thermal Resistance (RθJA) | 625 °C/W - indicates junction-to-ambient heat transfer efficiency under natural convection |
| Operating Temperature | −65 °C to +150 °C - supports deployment in extended-temperature automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SOD323 - ultra-compact surface-mount plastic case (1.30 mm × 1.70 mm × 0.90 mm), matte tin-plated alloy 42 leadframe, cathode band polarity marking, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-bias regulation; forms reference ground return path |
| Cathode | Zener breakdown terminal / voltage clamp input | Connected to higher-potential rail; clamps voltage to 3.6 V when reverse biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables tight VZ tolerance (±5.6%) and repeatable breakdown characteristics across production lots |
| AEC-Q101 qualification | Validates suitability for automotive power rails, engine control sensors, and infotainment supply monitoring |
| SOD323 footprint | Reduces PCB area by >50% vs. SOD123; compatible with high-density routing and fine-pitch reflow profiles |
| Lead-free & halogen-free | Meets RoHS 2 (2011/65/EU) and JEDEC J-STD-020 Level 1 requirements for green manufacturing compliance |
Applications
| USB Port Overvoltage Protection | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Clamps transient surges on 5 V USB VBUS line to prevent damage to downstream USB PHY ICs during hot-plug or ESD events. IC Role / Device Role: Passive voltage clamp placed between VBUS and GND, conducting only above 3.6 V. Use Value: Limits peak voltage to ≤3.8 V with <5 µA leakage at 1 V, preserving signal integrity while consuming zero active power. | Use Scenario: Generates clean, temperature-stable reset threshold for 3.3 V microcontrollers requiring brown-out detection below 2.9 V. IC Role / Device Role: Zener-based reference in RC reset generator, setting precise trip point via resistor divider. Use Value: Delivers ±0.2 V regulation window and −3.5 to 0 mV/°C TC, enabling reliable reset assertion across −40 °C to +85 °C. |
| Low-Power Sensor Biasing | Industrial Analog Signal Conditioning |
Use Scenario: Provides stable 3.6 V excitation voltage for resistive bridge sensors (e.g., pressure transducers) in battery-powered IoT nodes. IC Role / Device Role: Low-current voltage reference source drawing <10 µA total quiescent current. Use Value: Maintains regulation within ±1.7% over 5 mA load step and −65 °C to +150 °C, extending battery life without trimming. | Use Scenario: Stabilizes reference node in 12-bit ADC front-end for 4–20 mA loop-powered transmitters operating in harsh factory environments. IC Role / Device Role: Precision shunt regulator supplying clean analog reference to op-amp gain stages. Use Value: Achieves 90 Ω dynamic impedance and 625 °C/W RθJA, minimizing reference drift under 100 mW internal dissipation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4685-7-F | Zener voltage 3.6 V (same nominal), but wider tolerance (3.42–3.78 V); 350 mW PD; SOD123 package | Larger footprint; higher power rating suits higher-current clamping but increases board area | Select when higher surge energy absorption is required and SOD123 layout is already established |
| BZX384-C3V6,115 | Zener voltage 3.6 V (same nominal), tighter tolerance (3.42–3.78 V); 300 mW PD; SOD323 package; no AEC-Q101 qualification | Same footprint and thermal profile, but lacks automotive reliability validation | Select for cost-sensitive commercial designs where AEC-Q101 is not mandated |
Compared with MMSZ4685-7-F and BZX384-C3V6,115, the BZT52C3V6S-7 uniquely combines AEC-Q101 qualification, SOD323 compactness, and tight 3.4–3.8 V regulation window-making it optimal for space-constrained automotive and industrial applications demanding proven reliability.
Availability
BZT52C3V6S-7 is available at Aetrix Electronics and suitable for USB port protection, microcontroller reset generation, and low-power sensor biasing requiring stable component supply and long-term lifecycle support.
Supply support for BZT52C3V6S-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 integrated circuits, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZT52C series belongs to Diodes' precision Zener diode product line, engineered specifically for voltage regulation, reference, and overvoltage protection in automotive, industrial, and consumer power management systems.
FAQ
What is the maximum reverse current specification for BZT52C3V6S-7 at 1.0 V?
The maximum reverse current (IR) is 5 µA at VR = 1.0 V, measured at 25 °C ambient. This low leakage ensures minimal power loss in high-impedance bias networks and preserves accuracy in precision reference applications where current draw must remain below 10 µA.
Is BZT52C3V6S-7 suitable for automotive applications?
Yes-BZT52C3V6S-7 is qualified to AEC-Q101 standards, including stress tests for temperature cycling, high-temperature reverse bias, and electrostatic discharge. Its −65 °C to +150 °C operating range and SOD323 package meet requirements for engine control units, body electronics, and ADAS power rail monitoring.
How does the temperature coefficient affect regulation accuracy over temperature?
The temperature coefficient ranges from −3.5 to 0 mV/°C, meaning output voltage may decrease up to 0.35 V over a 100 °C span. For applications requiring <1% regulation stability, this drift must be accounted for in circuit design-e.g., using feedback compensation or selecting tighter-tolerance variants like BZT52C3V6-7-F (if available).
What is the recommended PCB pad layout for SOD323 mounting?
Diodes Incorporated specifies a pad layout with X = 0.590 mm, X1 = 2.700 mm, Y = 0.450 mm for SOD323. This geometry ensures proper solder fillet formation, thermal relief, and mechanical stability during reflow. Full dimensions and land pattern files are published at diodes.com/package-outlines.html and must be used to avoid tombstoning or thermal delamination.
BZT52C3V6S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±6%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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
BZT52C3V6S-7 FAQ
1.How can I place an order for BZT52C3V6S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C3V6S-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 BZT52C3V6S-7 reliable?
The price and inventory of BZT52C3V6S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C3V6S-7 is usually 5 days.
3.What payment methods are accepted for BZT52C3V6S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C3V6S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C3V6S-7?
BZT52C3V6S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C3V6S-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 BZT52C3V6S-7?
For technical support, including BZT52C3V6S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C3V6S-7 requirements.
6.How does Aetrix verify that BZT52C3V6S-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C3V6S-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 BZT52C3V6S-7 meets industry standards.
7.What is the process for return or replacement of BZT52C3V6S-7?
All BZT52C3V6S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C3V6S-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 BZT52C3V6S-7 part is unused and in its original packaging.
Return procedure for BZT52C3V6S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C3V6S-7 Tags
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