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onsemi BZX84C5V6ET3G
- Part No.:
- BZX84C5V6ET3G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C5V6ET3G.pdf
- Description:
- DIODE ZENER 5.6V 225MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,860
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Product details
Overview
BZX84C5V6ET3G from onsemi is a 5.6 V, 250 mW surface-mount Zener diode in SOT-23 package, designed for precision voltage regulation and reference applications with ±0.4 V tolerance at 5 mA test current, 40 Ω dynamic impedance, and −2 mV/°C temperature coefficient. It delivers stable clamping in low-power power supply rails and voltage monitoring circuits for portable electronics.
For engineers reviewing the BZX84C5V6ET3G datasheet, pinout, applications, or equivalent options, key selection factors include its 5.6 V nominal Zener voltage, 250 mW power rating on FR-5 board, 1.0 μA reverse leakage at 3.0 V, 200 pF capacitance at 0 V bias, and SOT-23 pin-compatible layout with anode (Pin 1), no connection (Pin 2), and cathode (Pin 3).
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in silicon PN junction, with specified Zener voltage measured under pulsed 5 mA DC test conditions at 25 °C ambient. Its thermal resistance is 500 °C/W on FR-5 board and 417 °C/W on alumina substrate, enabling reliable operation across −65 °C to +150 °C junction temperature range.
The BZX84C5V6ET3G features Class 3 ESD robustness (>16 kV HBM), UL 94 V-0 flammability rating, and Pb-free RoHS-compliant construction. Pin 2 is internally unconnected - not a functional terminal - and polarity is marked by cathode band on the package body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2–6.0 V @ IZT = 5 mA - ensures tight regulation window for 5 V system references |
| Power Dissipation | 250 mW on FR-5 board - supports compact PCB layouts without forced cooling |
| Zener Impedance (ZZT) | 40 Ω @ 5 mA - minimizes output voltage variation under load transients |
| Reverse Leakage (IR) | 1.0 μA @ VR = 3.0 V - enables low-quiescent-current biasing in battery-powered sensors |
| Capacitance (C) | 200 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
| Temp. Coefficient (TC) | −2 mV/°C @ 5 mA - provides predictable drift behavior over industrial temperature range |
| ESD Rating | Class 3 (>16 kV HBM) - withstands handling and assembly electrostatic discharge events |
Pinout & Package
SOT-23 (TO-236) package: 2.90 mm × 1.30 mm × 1.00 mm body, 1.90 mm lead pitch, void-free thermosetting plastic case with corrosion-resistant solderable finish; cathode indicated by band; UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward-biased input terminal; connects to lower-potential node in regulation path |
| 2 | No Connection | Internally unconnected; must remain floating - not used for routing or grounding |
| 3 | Cathode | Zener breakdown output terminal; connects to regulated voltage rail or reference point |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOT-23 packaging | Enables high-density placement on space-constrained PCBs such as smartphone mainboards and wearables |
| 250 mW power rating on FR-5 | Supports continuous regulation in low-power analog front-ends without thermal derating below 25 °C |
| Class 3 ESD protection | Eliminates need for external ESD protection components in handheld device interfaces |
| Pb-free and RoHS compliant | Meets global environmental compliance requirements for consumer and industrial end products |
| Peak pulse power of 225 W | Withstands transient surges per 8 × 20 μs waveform, enhancing reliability in noisy environments |
Applications
| Portable Power Monitoring | USB-C Voltage Clamp |
|---|---|
Use Scenario: Real-time battery voltage sensing in Bluetooth earbuds with 3.0–4.2 V Li-ion supply. IC Role / Device Role / Timing Role: Zener reference for ADC input scaling and overvoltage detection threshold. Use Value: Tight 5.6 V tolerance and low 1.0 μA leakage preserve battery life while ensuring accurate 4.2 V cutoff detection. |
Use Scenario: Overvoltage protection on USB-C CC line during hot-plug events. IC Role / Device Role / Timing Role: Clamping diode limiting CC line voltage to safe level during transient coupling. Use Value: 225 W peak pulse rating absorbs fast ESD transients without degradation, maintaining USB PD handshake integrity. |
| Industrial Sensor Reference | IoT Node Voltage Supervisor |
Use Scenario: Stable 5 V reference for 12-bit SAR ADC measuring 4–20 mA loop current in factory automation. IC Role / Device Role / Timing Role: Precision shunt regulator providing excitation and reference for ratiometric measurement. Use Value: −2 mV/°C TC and 40 Ω ZZT minimize gain error drift across −40 °C to +85 °C operating range. |
Use Scenario: Brown-out detection in LPWAN sensor nodes powered by coin-cell batteries. IC Role / Device Role / Timing Role: Threshold element triggering MCU reset when supply drops below 5.6 V. Use Value: Ultra-low 1.0 μA leakage avoids premature battery depletion while delivering repeatable 5.6 V trip point. |
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 | 5.6 V nominal, 225 mW rating, SOD-123 package, 30 Ω ZZT, −2.5 mV/°C TC | Higher power density but larger footprint; less suitable for ultra-thin mobile PCBs | Prefer when lower dynamic impedance is critical and SOT-23 space constraints are relaxed |
| BZX84-C5V6,115 | 5.6 V nominal, 300 mW rating, SOT-23 package, 40 Ω ZZT, −2 mV/°C TC, non-automotive grade | Same pinout and electrical specs but lacks AEC-Q101 qualification and PPAP support | Acceptable for commercial-grade designs where automotive qualification is not required |
Compared with BZX84C5V6ET3G, MMBZ5232BS-7-F offers lower impedance but requires more board area, while BZX84-C5V6,115 matches form/fit/function for non-automotive use but omits automotive process controls and traceability.
Availability
BZX84C5V6ET3G is available at Aetrix Electronics and suitable for portable power monitoring, USB-C interface protection, industrial sensor reference, IoT node voltage supervision, and high-density PCB voltage regulation requiring stable component supply and full RoHS compliance.
Supply support for BZX84C5V6ET3G 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
onsemi is a global semiconductor supplier focused on energy-efficient electronics, delivering high-performance analog, logic, discrete, and custom devices for automotive, industrial, cloud, and IoT markets.
The BZX84C5V6ET3G belongs to the BZX84CxxxETxG Zener regulator family, engineered for compact, reliable voltage reference and clamping in space- and power-constrained portable and industrial systems.
FAQ
What is the Zener voltage tolerance of BZX84C5V6ET3G at 5 mA test current?
The BZX84C5V6ET3G has a guaranteed Zener voltage range of 5.2 V to 6.0 V when tested at IZT = 5 mA and TA = 25 °C. This ±0.4 V tolerance reflects the device's specification for precision voltage reference applications and is confirmed in the Electrical Characteristics table on page 2 of the official onsemi datasheet.
Does BZX84C5V6ET3G have a functional third pin?
No, Pin 2 of the BZX84C5V6ET3G is explicitly designated "No Connection" in the marking diagram and mechanical outline documentation. It is internally unconnected and must remain un-routed on the PCB - only Pins 1 (Anode) and 3 (Cathode) serve active circuit functions in the BZX84C5V6ET3G.
What is the maximum reverse leakage current for BZX84C5V6ET3G at 3.0 V?
The BZX84C5V6ET3G exhibits a maximum reverse leakage current of 1.0 μA when biased at VR = 3.0 V and measured at TA = 25 °C. This value is specified in the Electrical Characteristics table and directly supports low-power design goals in battery-operated applications.
Can BZX84C5V6ET3G be used in automotive applications?
Yes - the "SZ" prefix variant (e.g., SZBZX84C5V6ET3G) is AEC-Q101 qualified and PPAP capable, but the standard BZX84C5V6ET3G is not automotive-qualified. For automotive use, engineers must select the SZ-prefixed version; the BZX84C5V6ET3G is intended for commercial and industrial applications.
What is the thermal resistance of BZX84C5V6ET3G on FR-5 board?
The BZX84C5V6ET3G has a thermal resistance of 500 °C/W from junction-to-ambient when mounted on FR-5 board, with 250 mW total power dissipation derated above 25 °C at 2.0 mW/°C. This value is critical for thermal design validation in enclosed or high-ambient-temperature environments.
BZX84C5V6ET3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±7%
- Power - Max:
- 225 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
BZX84C5V6ET3G FAQ
1.How can I place an order for BZX84C5V6ET3G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C5V6ET3G 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 BZX84C5V6ET3G reliable?
The price and inventory of BZX84C5V6ET3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C5V6ET3G is usually 5 days.
3.What payment methods are accepted for BZX84C5V6ET3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C5V6ET3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C5V6ET3G?
BZX84C5V6ET3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C5V6ET3G 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 BZX84C5V6ET3G?
For technical support, including BZX84C5V6ET3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C5V6ET3G requirements.
6.How does Aetrix verify that BZX84C5V6ET3G is sourced from the original manufacturer or authorized distributors?
All BZX84C5V6ET3G 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 BZX84C5V6ET3G meets industry standards.
7.What is the process for return or replacement of BZX84C5V6ET3G?
All BZX84C5V6ET3G units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C5V6ET3G, 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 BZX84C5V6ET3G part is unused and in its original packaging.
Return procedure for BZX84C5V6ET3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C5V6ET3G Tags
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