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Diodes Incorporated BZT52C3V6-7-F
- Part No.:
- BZT52C3V6-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C3V6-7-F.pdf
- Description:
- DIODE ZENER 3.6V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,374
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Product details
Overview
BZT52C3V6-7-F from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 3.6 V, ±5.6% tolerance (3.4–3.8 V), 500 mW power dissipation at TL = +75°C, 90 Ω maximum zener impedance at 5 mA test current, and SOD123 package. It provides precise low-voltage regulation in power supply feedback paths, voltage reference circuits, and overvoltage protection for microcontroller I/O rails.
For engineers reviewing the BZT52C3V6-7-F datasheet, BZT52C3V6-7-F pinout, BZT52C3V6-7-F application, or BZT52C3V6-7-F equivalent, key selection criteria include zener voltage accuracy at 5 mA, thermal resistance (RθJA = 338 °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 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 placement and offers 150 °C/W junction-to-lead thermal resistance.
The device is characterized at 5 mA test current (IZT) and exhibits a typical temperature coefficient near −2.0 mV/°C for the 3.6 V grade. Reverse current remains ≤5 µA up to 1.0 V, enabling low-power biasing in precision analog circuits and reliable clamping in ESD-sensitive signal lines.
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 regulated output voltage in shunt regulator or reference applications |
| Power Dissipation (PD) | 500 mW at TL = +75°C - sets maximum continuous power handling on PCB with thermal relief |
| Zener Impedance (ZZT) | 90 Ω max at 1 kHz, 5 mA - determines regulation stiffness and AC ripple rejection capability |
| Reverse Leakage (IR) | ≤5 µA at VR = 1.0 V - ensures minimal quiescent current in low-power standby circuits |
| Temperature Coefficient | −3.5 to 0 mV/°C - indicates voltage drift magnitude over −65°C to +150°C operating range |
| Package | SOD123 - surface-mount outline with cathode band polarity, 0.010 g weight, RoHS/Green compliant |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress-test requirements including HTOL, TC, HAST |
Pinout & Package
Package: SOD123 - molded plastic case, UL 94V-0 rated, matte tin-plated alloy 42 leadframe, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in shunt regulation; forms return path for zener current |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; maintains stable voltage relative to anode during reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight VZ distribution and repeatable breakdown behavior across production lots |
| 500 mW power rating at TL = +75°C | Supports robust operation in thermally constrained PCB layouts without forced cooling |
| AEC-Q101 qualification | Validates suitability for automotive body control modules, infotainment power rails, and ADAS sensor interfaces |
| Halogen- and antimony-free "Green" compound | Meets strict environmental compliance (Br+Cl <1500 ppm, Sb <1000 ppm) for global OEM supply chains |
| Moisture sensitivity Level 1 | Enables direct placement without baking; compatible with standard SMT reflow profiles |
Applications
| USB Port Overvoltage Protection | Microcontroller I/O Clamp Circuit |
|---|---|
Use Scenario: Protecting USB 2.0 data lines (D+/D−) from transient surges exceeding 3.3 V rail. IC Role / Device Role / Timing Role: Zener clamp referenced to ground, conducting excess current when line voltage exceeds 3.6 V. Use Value: Limits voltage excursion to safe levels (<4.0 V) without adding series resistance that degrades signal integrity. |
Use Scenario: Preventing damage to 3.3 V GPIO pins during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp between I/O pin and ground, activated above 3.6 V. Use Value: Provides sub-5 µA leakage at 3.3 V while clamping transients within nanoseconds due to fast junction response. |
| Low-Power Voltage Reference | Feedback Divider in Buck Converter |
Use Scenario: Generating stable 3.6 V reference for ADC biasing or comparator thresholds in battery-powered sensors. IC Role / Device Role / Timing Role: Precision shunt reference operating at 5 mA, stabilized by series resistor. Use Value: Delivers <±2% total error (including tempco and tolerance) over −40°C to +85°C ambient. |
Use Scenario: Setting output voltage of a 3.3 V synchronous buck converter using resistive feedback divider. IC Role / Device Role / Timing Role: Zener replaces top resistor to improve load regulation and reduce divider current dependency. Use Value: Enables tighter output tolerance (±1%) vs. standard resistor divider alone, especially under light-load conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Zener voltage 3.6 V, but SOT-323 package (smaller footprint, higher RθJA = 400 °C/W) | Higher thermal resistance limits power handling in high-ambient environments | Select when board space is critical and power dissipation stays below 250 mW |
| BZX84-C3V6 | Same 3.6 V rating, but SOT-23 package and non-AEC-Q101 qualified | Lacks automotive stress-test validation; not approved for under-hood use | Acceptable for commercial-grade consumer electronics where qualification is not required |
Compared with MMBZ5227BS-7-F and BZX84-C3V6, BZT52C3V6-7-F delivers superior thermal performance in SOD123, AEC-Q101 compliance for automotive systems, and tighter process control for stable regulation in industrial power supplies.
Availability
BZT52C3V6-7-F is available at Aetrix Electronics and suitable for USB interface protection, microcontroller I/O clamping, low-power voltage reference generation, and buck converter feedback circuits requiring stable component supply and long-term manufacturability.
Supply support for BZT52C3V6-7-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 BZT52C series belongs to Diodes' general-purpose Zener diode product line, engineered for cost-effective, high-yield voltage regulation and protection in space-constrained, high-volume applications.
FAQ
What is the maximum reverse current for BZT52C3V6-7-F at 1.0 V?
The maximum reverse current (IR) is 5 µA at VR = 1.0 V and TA = +25°C, as specified in the Electrical Characteristics table. This low leakage enables use in battery-critical applications where standby current must remain below 10 µA.
Is BZT52C3V6-7-F suitable for automotive applications?
Yes - it is explicitly qualified to AEC-Q101 standards, including high-temperature operating life (HTOL), temperature cycling (TC), and humidity testing (HAST). The SOD123 package and Green compound meet automotive OEM material compliance requirements.
How does the SOD123 package affect thermal performance?
The SOD123 package provides RθJA = 338 °C/W on FR-4 with 1-inch copper pad, and RθJL = 150 °C/W. This allows 500 mW dissipation at TL = +75°C, making it more thermally robust than smaller packages like SOT-23 or SOT-323 for same voltage grades.
What is the zener impedance at 1 kHz and how does it impact regulation?
Zener impedance is 90 Ω maximum at 1 kHz and 5 mA test current. Lower impedance improves regulation against load transients - for example, a 10 mA step change causes only ~0.9 V deviation, enabling stable reference performance in precision analog circuits.
BZT52C3V6-7-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):
- 3.6 V
- Tolerance:
- ±6%
- Power - Max:
- 500 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-123
BZT52C3V6-7-F FAQ
1.How can I place an order for BZT52C3V6-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C3V6-7-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 BZT52C3V6-7-F reliable?
The price and inventory of BZT52C3V6-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C3V6-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C3V6-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C3V6-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C3V6-7-F?
BZT52C3V6-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C3V6-7-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 BZT52C3V6-7-F?
For technical support, including BZT52C3V6-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C3V6-7-F requirements.
6.How does Aetrix verify that BZT52C3V6-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C3V6-7-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 BZT52C3V6-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C3V6-7-F?
All BZT52C3V6-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C3V6-7-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 BZT52C3V6-7-F part is unused and in its original packaging.
Return procedure for BZT52C3V6-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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