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Diodes Incorporated BZX84C5V6TA
- Part No.:
- BZX84C5V6TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C5V6TA.pdf
- Description:
- DIODE ZENER 5.6V 350MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,608
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Product details
Overview
BZX84C5V6TA from Diodes Incorporated is a 350mW surface-mount Zener diode with a nominal zener voltage of 5.6V (±0.4V tolerance), 40Ω dynamic impedance at 5mA test current, and −2.0mV/°C temperature coefficient. It operates in reverse-bias regulation mode for voltage reference and overvoltage protection in low-power analog circuits, such as sensor biasing and microcontroller reset supervision.
For engineers reviewing the BZX84C5V6TA datasheet, BZX84C5V6TA pinout, BZX84C5V6TA application, or BZX84C5V6TA equivalent, key selection criteria include zener voltage accuracy at 5mA, thermal resistance (357°C/W), SOT23 package compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode uses planar die construction to ensure stable breakdown characteristics and low leakage across temperature. Its 5.6V nominal zener voltage is specified at 5mA test current (IZT), with a maximum zener impedance of 40Ω at that condition and 400Ω at knee current (1mA).
The device exhibits a negative temperature coefficient of −2.0mV/°C, enabling predictable drift compensation in precision references. It is rated for operation from −65°C to +150°C and features matte tin–plated alloy 42 leads compatible with standard reflow profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6V nominal, 5.2–6.0V range at 5mA - defines stable regulation point for 5V system rails |
| Power Dissipation | 350mW at TA = 25°C - supports continuous operation in compact SOT23 footprint without forced cooling |
| Zener Impedance (ZZT) | 40Ω max at IZT = 5mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 1.0µA max at VR = 2.0V - guarantees low quiescent current in battery-powered voltage monitors |
| Temperature Coefficient | −2.0mV/°C - enables predictable voltage drift correction in temperature-sensitive references |
| Thermal Resistance (RθJA) | 357°C/W - determines junction temperature rise under 350mW dissipation on standard FR-4 PCB |
Pinout & Package
Package: SOT23 - ultra-small surface-mount plastic case (2.4mm × 1.3mm × 1.0mm), UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground | Connected to circuit ground or lower-potential node during zener regulation |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Provides stable 5.6V reference when reverse-biased above breakdown threshold |
| NC / Dummy (Pin 3) | Non-connected internal leadframe extension | Structural support only; electrically isolated and must not be connected |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable breakdown voltage and long-term stability under thermal cycling |
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules and body controllers |
| Lead-free & halogen-free | Complies with RoHS 3 (2015/863/EU) and Diodes Inc.'s "Green" definition (<900ppm Br/Cl) |
| SOT23 tape-and-reel packaging | Enables high-speed pick-and-place assembly with 3,000-unit reels (standard grade) |
Applications
| Microcontroller Reset Circuit | Sensor Bias Reference |
|---|---|
Use Scenario: Provides clean, temperature-compensated reset signal to ARM Cortex-M0+ MCU during power-up and brown-out events. IC Role / Device Role / Timing Role: Zener diode acts as precision voltage threshold detector feeding into an external supervisor IC or comparator input. Use Value: −2.0mV/°C TC and 5.6V nominal value align closely with 5V rail monitoring requirements, minimizing external component count. |
Use Scenario: Supplies stable excitation voltage to resistive temperature detectors (RTDs) in industrial process transmitters. IC Role / Device Role / Timing Role: Functions as low-drift, low-noise voltage reference source for ratiometric measurement front-ends. Use Value: 40Ω dynamic impedance ensures <10mV output shift under 250µA load variation, preserving measurement linearity. |
| USB Port Overvoltage Clamp | Low-Power IoT Node Voltage Monitor |
Use Scenario: Clamps transient surges on USB VBUS line to protect downstream USB-C PD controller ICs. IC Role / Device Role / Timing Role: Fast-acting shunt regulator limiting peak voltage to ≤6.0V during ESD or hot-swap events. Use Value: 350mW rating sustains 100ns 1kV ESD pulses per IEC 61000-4-2 without degradation. |
Use Scenario: Monitors coin-cell battery voltage in BLE beacon nodes to trigger low-battery alerts before cutoff. IC Role / Device Role / Timing Role: Reverse-biased Zener provides known reference for ADC-based battery telemetry. Use Value: 1.0µA max leakage at 2V ensures <1nA additional drain on CR2032 cells, extending shelf life by >6 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5232BS-7-F | Same 5.6V nominal, but 225mW rating and 30Ω ZZT @ 20mA - higher test current, lower impedance | Requires higher bias current; less suitable for µA-level leakage-critical designs | Select when tighter regulation under higher load is needed and thermal margin allows |
| 1SMA5917BT3G | 5.6V nominal, 1.5W rating, DO-214AC package - 10× higher power, larger footprint | Designed for surge clamping, not precision reference; unsuitable for space-constrained PCBs | Choose only for high-energy transient suppression where SOT23 thermal limits are exceeded |
Compared with MMBZ5232BS-7-F and 1SMA5917BT3G, BZX84C5V6TA offers optimal balance of low-leakage performance, SOT23 size, and AEC-Q101 qualification - making it preferred for automotive and portable embedded voltage reference use cases.
Availability
BZX84C5V6TA is available at Aetrix Electronics and suitable for microcontroller reset circuits, sensor bias references, USB port overvoltage clamps, and low-power IoT node voltage monitors requiring stable component supply across automotive, industrial, and consumer production programs.
Supply support for BZX84C5V6TA 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 and manufacturing operations across Asia and the Americas.
This part belongs to the BZX84C series of precision Zener diodes, engineered for stable voltage regulation in space-constrained, high-reliability applications including automotive ECUs and industrial sensors.
FAQ
What is the maximum reverse voltage (VR) this Zener can withstand before breakdown?
The BZX84C5V6TA has a specified maximum reverse current (IR) of 1.0µA at VR = 2.0V. Breakdown occurs at its nominal zener voltage of 5.6V; applying ≥6.0V continuously exceeds its guaranteed operating range and risks parametric shift. The absolute maximum rating for non-destructive reverse voltage is not defined - operation must remain within the 5.2–6.0V regulation band at rated current.
Is BZX84C5V6TA suitable for use in automotive applications?
Yes - BZX84C5V6TA is qualified to AEC-Q101 standards, confirming reliability for automotive under-hood and cabin applications. Its −65°C to +150°C operating range, lead-free/halogen-free construction, and SOT23 package meet stringent automotive PCB assembly and lifetime requirements, including engine control units and ADAS sensor modules.
How does the −2.0mV/°C temperature coefficient affect circuit performance?
The negative temperature coefficient means the zener voltage decreases by 2.0mV per degree Celsius rise. At 85°C ambient, the 5.6V nominal value drops ~120mV - a 2.1% shift. This is fully characterized and predictable, allowing compensation in reference designs; it does not indicate instability but reflects inherent silicon physics in this Zener voltage range.
Can this Zener replace a 5.1V or 6.2V variant in an existing design?
No - BZX84C5V6TA is not a drop-in replacement for BZX84C5V1 or BZX84C6V2 due to distinct zener voltage, impedance, and temperature coefficient values. Substituting alters regulation threshold, load regulation error, and thermal drift behavior. Redesign validation is required, especially in precision references or reset circuits with tight voltage margins.
BZX84C5V6TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C5V6TA FAQ
1.How can I place an order for BZX84C5V6TA through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C5V6TA 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 BZX84C5V6TA reliable?
The price and inventory of BZX84C5V6TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C5V6TA is usually 5 days.
3.What payment methods are accepted for BZX84C5V6TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C5V6TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C5V6TA?
BZX84C5V6TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C5V6TA 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 BZX84C5V6TA?
For technical support, including BZX84C5V6TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C5V6TA requirements.
6.How does Aetrix verify that BZX84C5V6TA is sourced from the original manufacturer or authorized distributors?
All BZX84C5V6TA 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 BZX84C5V6TA meets industry standards.
7.What is the process for return or replacement of BZX84C5V6TA?
All BZX84C5V6TA units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C5V6TA, 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 BZX84C5V6TA part is unused and in its original packaging.
Return procedure for BZX84C5V6TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C5V6TA Tags
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