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onsemi SZBZX84C5V6ET1G
- Part No.:
- SZBZX84C5V6ET1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84C5V6ET1G.pdf
- Description:
- DIODE ZENER 5.6V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:25,581
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Product details
Overview
SZBZX84C5V6ET1G 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 serves as a stable shunt regulator in low-power power supply feedback loops, overvoltage protection circuits, and voltage reference stages in portable electronics.
For engineers reviewing the SZBZX84C5V6ET1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 5.6 V nominal Zener voltage, 250 mW power rating on FR-5 board, 40 Ω Zener impedance at 5 mA, Class 3 ESD robustness (>16 kV HBM), and AEC-Q101 qualification for automotive use.
Technical Context
This device operates as a two-terminal shunt regulator, conducting in reverse breakdown to clamp voltage across its terminals. Its Zener voltage is specified at three test currents (1 mA, 5 mA, 20 mA) to support design flexibility under varying load conditions, with leakage current limited to 1.0 µA at 4.0 V reverse bias.
The SOT-23 package features a defined pinout (Pin 1: Anode, Pin 2: No Connection, Pin 3: Cathode), thermally optimized for FR-5 and alumina substrates, and rated for 260°C soldering at 10 seconds. Its −2 mV/°C temperature coefficient ensures minimal drift over −65°C to +150°C junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2–6.0 V at 5 mA - defines regulated output voltage window for feedback or clamping |
| Power Dissipation | 250 mW on FR-5 board - sets maximum continuous power handling in standard PCB layout |
| Zener Impedance (ZZT) | 40 Ω at 5 mA - determines regulation accuracy under load transients |
| Reverse Leakage Current | 1.0 µA at 4.0 V - ensures low quiescent current in standby or high-impedance bias networks |
| Temperature Coefficient | −2 mV/°C at 5 mA - quantifies voltage drift per degree Celsius for thermal stability analysis |
| ESD Rating | Class 3 (>16 kV HBM) - supports robust handling in automated assembly and end-use environments |
| Junction Temp Range | −65°C to +150°C - enables operation in automotive under-hood and industrial ambient conditions |
Pinout & Package
SZBZX84C5V6ET1G is housed in a Pb-free SOT-23 (TO-236) package measuring 2.90 × 1.30 × 1.00 mm, with void-free thermosetting plastic case and UL 94 V-0 flammability rating. Polarity is marked by cathode band on the package body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to lower-potential node in shunt configuration; forms current path into device during reverse breakdown |
| Pin 2 | No Connection | Internally unconnected; must remain floating - no PCB trace or pad required |
| Pin 3 | Cathode | Connected to regulated voltage node; polarity band on package identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| 250 mW FR-5 rating | Enables compact voltage reference design without external heat sinking on standard PCBs |
| 16 kV HBM ESD protection | Eliminates need for external ESD protection in handheld and portable designs |
| Low 40 Ω ZZT | Delivers tight regulation (<±25 mV) under 1 mA load variation in feedback networks |
| Pb-free & RoHS compliant | Meets global environmental compliance requirements for commercial and automotive production |
Applications
| USB Power Delivery Clamp | Automotive Sensor Reference |
|---|---|
Use Scenario: Clamping transient overvoltage on USB 2.0 data lines during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Shunt Zener element placed between D+ and ground to limit line voltage to 5.6 V. Use Value: Prevents damage to USB transceivers by clamping spikes above 5.6 V while drawing <1 µA at normal operating voltage. | Use Scenario: Providing stable 5.6 V reference for analog-to-digital conversion of pressure or temperature sensor outputs in engine control units. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC biasing and ratiometric scaling. Use Value: −2 mV/°C TC and 40 Ω ZZT ensure reference stability within ±15 mV over −40°C to +125°C ambient. |
| Portable Device LDO Feedback | Industrial PLC Input Protection |
Use Scenario: Setting regulated output voltage of a low-dropout linear regulator in Bluetooth earbuds or wearables. IC Role / Device Role / Timing Role: Zener element in resistor divider network feeding LDO error amplifier feedback pin. Use Value: 5.2–6.0 V tolerance and 250 mW rating allow accurate 3.3 V or 5.0 V output setting with minimal board space. | Use Scenario: Protecting 24 V digital input channels in programmable logic controllers against surge and miswiring. IC Role / Device Role / Timing Role: Primary shunt clamp in series with current-limiting resistor on field-side input circuit. Use Value: 225 W peak pulse rating (8×20 µs) absorbs IEC 61000-4-5 Level 3 surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C5V6ET1G | Non-automotive grade; lacks AEC-Q101 qualification and SZ prefix; identical electrical specs and SOT-23 package | Suitable for consumer and industrial applications where automotive qualification is not required | Select when cost sensitivity outweighs automotive compliance needs and supply chain allows non-SZ variants |
| MMSZ5232BT1G | Same 5.6 V nominal Zener voltage but higher 500 mW power rating on FR-4; 30 Ω ZZT; different SOD-123 package | Preferred for higher-power dissipation scenarios or where larger footprint is acceptable | Choose when thermal margin exceeds 250 mW requirement or when SOD-123 layout already exists |
Compared with BZX84C5V6ET1G and MMSZ5232BT1G, SZBZX84C5V6ET1G provides automotive-grade reliability and tighter thermal coefficient control in the smallest SOT-23 footprint, making it optimal for space-constrained AEC-Q101-compliant designs despite its lower power rating.
Availability
SZBZX84C5V6ET1G is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor signal conditioning, and portable medical device power management requiring stable component supply and long-term lifecycle support.
Supply support for SZBZX84C5V6ET1G 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 delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The BZX84CxxxET1G/SZBZX84CxxxET1G series is part of onsemi's discrete Zener portfolio, engineered for high-density surface-mount voltage regulation in space-constrained, high-reliability electronic systems.
FAQ
What is the Zener voltage tolerance of SZBZX84C5V6ET1G at 5 mA test current?
The SZBZX84C5V6ET1G has a Zener voltage range of 5.2 V to 6.0 V at IZT = 5 mA, corresponding to a ±0.4 V absolute tolerance around the nominal 5.6 V rating. This tolerance is confirmed in the Electrical Characteristics table on page 2 of the onsemi datasheet (Rev. 11, August 2024) and defines the guaranteed regulation window under standard test conditions.
Is SZBZX84C5V6ET1G pin-compatible with standard BZX84C5V6 variants?
Yes, SZBZX84C5V6ET1G shares identical SOT-23 pinout (Pin 1: Anode, Pin 2: No Connection, Pin 3: Cathode) and mechanical dimensions with BZX84C5V6ET1G and other members of the BZX84CxxxET1G family. The SZ prefix denotes automotive qualification but does not alter physical or electrical pin compatibility.
What is the maximum reverse leakage current for SZBZX84C5V6ET1G and at what voltage is it specified?
The maximum reverse leakage current for SZBZX84C5V6ET1G is 1.0 µA, specified at a reverse voltage (VR) of 4.0 V. This value is listed in the Electrical Characteristics table on page 2 of the official onsemi datasheet and reflects worst-case leakage under sub-breakdown bias conditions.
Does SZBZX84C5V6ET1G meet automotive reliability standards?
Yes, SZBZX84C5V6ET1G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the "Specification Features" section of the onsemi datasheet. The "SZ" prefix denotes compliance with automotive-specific site and process controls, enabling use in engine control, ADAS, and body electronics applications.
What is the thermal resistance junction-to-ambient for SZBZX84C5V6ET1G on an FR-5 board?
The thermal resistance junction-to-ambient (RJA) for SZBZX84C5V6ET1G is 500 °C/W on FR-5 board, with total power dissipation derated at 2.0 mW/°C above 25°C ambient. This value is provided in the "Maximum Ratings" table on page 1 of the onsemi datasheet and governs safe operating temperature rise under continuous DC loading.
SZBZX84C5V6ET1G 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
SZBZX84C5V6ET1G FAQ
1.How can I place an order for SZBZX84C5V6ET1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84C5V6ET1G 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 SZBZX84C5V6ET1G reliable?
The price and inventory of SZBZX84C5V6ET1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84C5V6ET1G is usually 5 days.
3.What payment methods are accepted for SZBZX84C5V6ET1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84C5V6ET1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84C5V6ET1G?
SZBZX84C5V6ET1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84C5V6ET1G 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 SZBZX84C5V6ET1G?
For technical support, including SZBZX84C5V6ET1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84C5V6ET1G requirements.
6.How does Aetrix verify that SZBZX84C5V6ET1G is sourced from the original manufacturer or authorized distributors?
All SZBZX84C5V6ET1G 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 SZBZX84C5V6ET1G meets industry standards.
7.What is the process for return or replacement of SZBZX84C5V6ET1G?
All SZBZX84C5V6ET1G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84C5V6ET1G, 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 SZBZX84C5V6ET1G part is unused and in its original packaging.
Return procedure for SZBZX84C5V6ET1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZBZX84C5V6ET1G Tags
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