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Diodes Incorporated BZT52C3V6-13
- Part No.:
- BZT52C3V6-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C3V6-13.pdf
- Description:
- DIODE ZENER 3.6V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,075
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Product details
Overview
BZT52C3V6-13 from Diodes Incorporated is a surface-mount 3.6 V Zener diode in SOD123 package, rated for 500 mW peak power dissipation at TL = +75°C and 370 mW at TA = +25°C, with 90 Ω typical Zener impedance at 5 mA test current, used for voltage regulation and overvoltage protection in low-power analog and digital supply rails.
For engineers reviewing the BZT52C3V6-13 datasheet, BZT52C3V6-13 pinout, BZT52C3V6-13 application, or BZT52C3V6-13 equivalent, key selection criteria include nominal Zener voltage tolerance (±5.6%), temperature coefficient (–3.5 mV/°C), reverse leakage (≤5 µA @ 1.0 V), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics and low dynamic impedance across the 5 mA test current.
The device exhibits a negative temperature coefficient of –3.5 mV/°C, indicating decreasing Zener voltage with rising junction temperature - critical for thermal stability analysis in precision biasing networks and feedback loops.
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 window in shunt regulator designs |
| Power Dissipation (PD) | 370 mW at +25°C ambient - sets maximum continuous power handling on standard FR-4 PCB with 1-inch copper pad |
| Zener Impedance (ZZT) | 90 Ω max at 1 kHz, 5 mA - determines AC ripple rejection capability in voltage reference circuits |
| Reverse Leakage (IR) | ≤5 µA at VR = 1.0 V - ensures minimal quiescent current draw in standby or low-power modes |
| Temperature Coefficient | –3.5 mV/°C - quantifies voltage drift per degree Celsius, essential for thermal error budgeting |
| Package | SOD123 - surface-mount outline with cathode band marking, compatible with automated pick-and-place and reflow |
Pinout & Package
Two-terminal SOD123 package: anode and cathode marked by molded cathode band on body. No internal leads; terminals are matte tin-plated alloy 42 leads solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail; forms return path during reverse breakdown |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input supply or voltage node requiring clamping; maintains ~3.6 V relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Green, halogen-free construction | Meets <900 ppm Br/Cl and <1000 ppm Sb; supports RoHS 2 and environmental compliance programs |
| Planar die technology | Delivers tight Zener voltage distribution and repeatable impedance performance across production lots |
| 100% surge tested | Withstands repetitive 1 A, 8/20 µs transient pulses - suitable for IEC 61000-4-5 level 3 immunity designs |
Applications
| USB Port Overvoltage Protection | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Clamps transient surges on USB VBUS line during hot-plug or ESD events. IC Role / Device Role: Shunt voltage limiter protecting downstream USB PHY and power management ICs. Use Value: Limits VBUS to ≤3.8 V during fault, preventing damage to 3.3 V tolerant interface logic without adding series resistance. |
Use Scenario: Generates clean, temperature-stable reset threshold for 3.3 V microcontrollers. IC Role / Device Role: Precision voltage reference for RC-based reset generator or supervisor IC input. Use Value: Provides ±5.6% VZ tolerance and –3.5 mV/°C TC, enabling reliable reset assertion across –40°C to +125°C. |
| Low-Power Sensor Biasing | Industrial I/O Signal Conditioning |
Use Scenario: Supplies stable bias voltage to analog sensor front-ends (e.g., thermistor bridges, op-amp references). IC Role / Device Role: Low-noise, low-current Zener reference replacing higher-power alternatives. Use Value: Draws only ≤5 µA at 1.0 V reverse bias, minimizing loading on high-impedance sensor nodes. |
Use Scenario: Protects 4–20 mA transmitter inputs against field-wiring transients and polarity reversal. IC Role / Device Role: Bidirectional clamping element (with series resistor) limiting input voltage swing. Use Value: Withstands 370 mW continuous dissipation and 500 mW short-term pulse, meeting IEC 61000-4-4 level 4 robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Same 3.6 V nominal, but SOT-23 package; 350 mW PD at +25°C; ZZT = 100 Ω max | Higher board density possible, but lower thermal mass reduces pulse energy handling | Select when footprint size is constrained and transient energy is limited to <10 mJ |
| BZX84-C3V6 | 3.6 V Zener in SOT-23; 300 mW PD; ZZT = 100 Ω; no AEC-Q101 qualification | Lacks automotive qualification and has higher thermal resistance (RθJA = 375 °C/W) | Acceptable for commercial-grade consumer products where AEC-Q101 is not required |
Compared with MMBZ5227BS-7-F and BZX84-C3V6, BZT52C3V6-13 offers superior thermal performance (RθJA = 338 °C/W), higher pulse power rating (500 mW), and formal AEC-Q101 qualification - making it preferred for automotive and industrial environments demanding long-term reliability under thermal stress.
Availability
BZT52C3V6-13 is available at Aetrix Electronics and suitable for USB port protection, microcontroller reset generation, low-power sensor biasing, and industrial I/O signal conditioning requiring stable component supply and automotive-grade traceability.
Supply support for BZT52C3V6-13 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 targets cost-sensitive, high-volume applications needing robust, standardized Zener regulation - designed for compatibility with automated assembly and compliance with AEC-Q101 and RoHS requirements.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C3V6-13?
The nominal Zener voltage is 3.6 V, with a guaranteed range of 3.4 V to 3.8 V at 5 mA test current. Breakdown begins near the lower limit (3.4 V), and full regulation occurs within this band. It is not rated for sustained operation above 3.8 V in reverse bias without exceeding power limits.
Can BZT52C3V6-13 be used in place of a 3.3 V Zener diode?
No - its specified Zener voltage range (3.4–3.8 V) does not overlap with the 3.1–3.5 V range of BZT52C3V3. Substituting it for a 3.3 V part would raise regulated voltage by up to 0.5 V, potentially violating IC input voltage tolerances or bias point requirements.
Is the SOD123 package lead-free and RoHS compliant?
Yes - BZT52C3V6-13 uses matte tin finish over alloy 42 leadframe, is fully lead-free, and complies with EU Directive 2011/65/EU (RoHS 2). It is also halogen- and antimony-free per Diodes Incorporated's "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb).
How does temperature affect the Zener voltage of BZT52C3V6-13?
It has a temperature coefficient of –3.5 mV/°C, meaning its Zener voltage decreases by approximately 3.5 mV for every 1°C rise in junction temperature. At +125°C, VZ drops ~350 mV from its +25°C value - a key factor in high-temperature bias network design.
BZT52C3V6-13 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):
- 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
BZT52C3V6-13 FAQ
1.How can I place an order for BZT52C3V6-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C3V6-13 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 BZT52C3V6-13 reliable?
The price and inventory of BZT52C3V6-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C3V6-13 is usually 5 days.
3.What payment methods are accepted for BZT52C3V6-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C3V6-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C3V6-13?
BZT52C3V6-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C3V6-13 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 BZT52C3V6-13?
For technical support, including BZT52C3V6-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C3V6-13 requirements.
6.How does Aetrix verify that BZT52C3V6-13 is sourced from the original manufacturer or authorized distributors?
All BZT52C3V6-13 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 BZT52C3V6-13 meets industry standards.
7.What is the process for return or replacement of BZT52C3V6-13?
All BZT52C3V6-13 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C3V6-13, 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 BZT52C3V6-13 part is unused and in its original packaging.
Return procedure for BZT52C3V6-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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