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Nexperia USA Inc. BZX84-B5V6/DG/B4R
- Part No.:
- BZX84-B5V6/DG/B4R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B5V6/DG/B4R.pdf
- Description:
- DIODE ZENER 5.6V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,711
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Product details
Overview
BZX84-B5V6/DG/B4R from Nexperia is a 5.6 V, 250 mW surface-mount Zener diode in SOT23 package with ±2% tolerance, 800 mV forward voltage at 10 mA, and 100 nA reverse leakage at 1 V. It provides precision voltage regulation in low-power biasing and reference circuits for sensor signal conditioning.
For engineers reviewing the BZX84-B5V6/DG/B4R datasheet, BZX84-B5V6/DG/B4R pinout, BZX84-B5V6/DG/B4R application, or BZX84-B5V6/DG/B4R equivalent, key selection criteria include Zener voltage tolerance, power dissipation limit, temperature coefficient, dynamic impedance, and SOT23 thermal resistance under continuous DC operation.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying current loads from 5 mA to 20 mA. Its 250 mW power rating is derated linearly above 25°C ambient, with a typical temperature coefficient of +2.5 mV/K near 5.6 V.
The device exhibits a dynamic impedance of 40 Ω at 5 mA test current and achieves <100 nA reverse leakage below 1 V, enabling low-error reference generation in battery-powered analog front-ends and ADC voltage references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V ±2% at IZ = 5 mA - ensures tight reference accuracy for 5 V rail monitoring |
| Power Dissipation (Ptot) | 250 mW at Tamb = 25°C - limits maximum continuous current to ~45 mA in ambient air |
| Dynamic Impedance (ZZT) | 40 Ω at IZ = 5 mA - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | <100 nA at VR = 1 V - minimizes error current in high-impedance reference dividers |
| Forward Voltage (VF) | 800 mV at IF = 10 mA - defines conduction threshold when used as ESD clamp in forward bias |
| Temperature Coefficient | +2.5 mV/K near 5.6 V - quantifies drift per degree Celsius in precision reference designs |
Pinout & Package
Package: SOT23 (TO-236AB), 3-terminal plastic case with standard pin assignment: Anode (Pin 1), Cathode (Pin 2), unused terminal (Pin 3) - Pin 3 is internally unconnected and electrically isolated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to lower-potential node; reverse-biased during Zener operation |
| Pin 2 | Cathode | Connected to higher-potential node; voltage reference output point |
| Pin 3 | NC | No internal connection; must remain floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Reduces calibration overhead in factory-trimmed sensor modules |
| Low dynamic impedance (40 Ω) | Maintains <±20 mV output shift over 1–10 mA load current range |
| SOT23 footprint compatibility | Enables drop-in replacement for BZX84-C5V6 and MMBZ5232B in existing layouts |
| 100 nA max reverse leakage | Preserves accuracy in 1 MΩ+ reference divider networks without offset correction |
Applications
| Industrial Sensor Reference | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 5.6 V reference for 12-bit SAR ADC in temperature transmitters. IC Role / Device Role / Timing Role: Precision shunt voltage reference for ratiometric measurement scaling. Use Value: ±2% VZ tolerance eliminates need for post-calibration trimming in field-deployed units. | Use Scenario: Protecting USB 2.0 data lines from 12 V accidental insertion events. IC Role / Device Role / Timing Role: Low-leakage bidirectional ESD clamp (forward-biased anode-cathode path). Use Value: 800 mV VF ensures clamping begins before damage threshold of 3.3 V PHY receivers. |
| Low-Power MCU Reset Circuit | Photodiode Bias Supply |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ microcontrollers in battery-operated IoT nodes. IC Role / Device Role / Timing Role: Zener-based voltage monitor feeding comparator input. Use Value: 250 mW rating supports 5 µA standby current while maintaining 5.6 V accuracy over -40°C to +85°C. | Use Scenario: Supplying reverse bias to silicon photodiodes in optical smoke detectors. IC Role / Device Role / Timing Role: Stable high-impedance bias source with minimal dark current injection. Use Value: <100 nA IR prevents >10 fA dark current error in picoampere-level photocurrent measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6 | ±5% VZ tolerance, same SOT23 package and Ptot | Acceptable where system calibration compensates for initial error | Select when cost sensitivity outweighs absolute reference accuracy requirements |
| MMBZ5232B | 5.6 V nominal, ±5%, 350 mW rating, SOT23 package | Higher power margin enables use in transient-suppression roles | Choose when operating current exceeds 45 mA or ambient exceeds 70°C |
Compared with BZX84-C5V6 and MMBZ5232B, the BZX84-B5V6/DG/B4R delivers tighter initial voltage accuracy at lower power, making it optimal for space-constrained, battery-powered reference designs where calibration is impractical.
Availability
BZX84-B5V6/DG/B4R is available at Aetrix Electronics and suitable for industrial sensor reference, USB port protection, low-power MCU reset circuits, and photodiode bias supply requiring stable component supply across long-lifecycle embedded programs.
Supply support for BZX84-B5V6/DG/B4R 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered for stable voltage reference and low-leakage clamping in compact, thermally efficient SOT23 packages.
FAQ
What is the maximum continuous reverse current for reliable Zener operation?
The BZX84-B5V6/DG/B4R is rated for 250 mW total power dissipation at 25°C ambient. At 5.6 V, this corresponds to a maximum continuous reverse current of approximately 44.6 mA. Derating applies above 25°C per the datasheet's thermal resistance curve (RthJA = 430 K/W), limiting usable current to ~35 mA at 70°C ambient.
Can this Zener diode be used in forward-bias ESD protection?
Yes - with a forward voltage of 800 mV at 10 mA, the BZX84-B5V6/DG/B4R conducts predictably in forward bias and can serve as a low-threshold ESD clamp. Its 100 nA reverse leakage ensures minimal loading on protected lines when inactive, and its SOT23 package supports fast transient response in USB and I²C interfaces.
How does the ±2% tolerance affect ADC reference accuracy?
A ±2% Zener voltage tolerance introduces up to ±112 mV absolute error at 5.6 V. In a ratiometric 12-bit ADC system using this as a reference, that translates to ±45 LSB full-scale error. For sub-10 LSB accuracy, external trimming or digital calibration is required - but the tight tolerance reduces calibration effort versus ±5% alternatives.
Is Pin 3 electrically connected inside the SOT23 package?
No - Pin 3 of the BZX84-B5V6/DG/B4R is internally unconnected (NC) and electrically isolated. It must not be soldered to ground or signal traces unless explicitly required by board-level EMI mitigation design rules. Leaving it floating is the default recommended practice per Nexperia's packaging documentation.
BZX84-B5V6/DG/B4R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- 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:
- ±2%
- Power - Max:
- 250 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:
- TO-236AB
BZX84-B5V6/DG/B4R FAQ
1.How can I place an order for BZX84-B5V6/DG/B4R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B5V6/DG/B4R 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 BZX84-B5V6/DG/B4R reliable?
The price and inventory of BZX84-B5V6/DG/B4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B5V6/DG/B4R is usually 5 days.
3.What payment methods are accepted for BZX84-B5V6/DG/B4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B5V6/DG/B4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B5V6/DG/B4R?
BZX84-B5V6/DG/B4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B5V6/DG/B4R 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 BZX84-B5V6/DG/B4R?
For technical support, including BZX84-B5V6/DG/B4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B5V6/DG/B4R requirements.
6.How does Aetrix verify that BZX84-B5V6/DG/B4R is sourced from the original manufacturer or authorized distributors?
All BZX84-B5V6/DG/B4R 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 BZX84-B5V6/DG/B4R meets industry standards.
7.What is the process for return or replacement of BZX84-B5V6/DG/B4R?
All BZX84-B5V6/DG/B4R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B5V6/DG/B4R, 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 BZX84-B5V6/DG/B4R part is unused and in its original packaging.
Return procedure for BZX84-B5V6/DG/B4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B5V6/DG/B4R Tags
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