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Nexperia USA Inc. BZX79-C5V6,143
- Part No.:
- BZX79-C5V6,143
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-C5V6,143.pdf
- Description:
- DIODE ZENER 5.6V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:6,291
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Product details
Overview
BZX79-C5V6,143 from Nexperia is a ±5% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 5.6 V nominal Zener voltage at 5 mA test current, 500 mW total power dissipation at 50 °C ambient, and 1 μA maximum reverse leakage at 2 V reverse bias. It serves as a low-power voltage reference or stabilization element in linear power supplies, sensor biasing circuits, and overvoltage protection clamps.
For engineers reviewing the BZX79-C5V6,143 datasheet, BZX79-C5V6,143 pinout, BZX79-C5V6,143 application, or BZX79-C5V6,143 equivalent, this page delivers verified electrical parameters, thermal behavior, differential resistance, temperature coefficient, and real-world use context - all critical for precision analog design, low-cost voltage referencing, and legacy circuit replacement.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified nominal Zener voltage of 5.49 V to 5.71 V at IZ = 5 mA, exhibiting a typical differential resistance of 80 Ω and a positive temperature coefficient of −2.0 to +1.2 mV/K. Its junction-to-ambient thermal resistance is 380 K/W under standard PCB mounting conditions.
Designed for stable DC voltage regulation in low-current (<250 mA forward, <6 A non-repetitive surge) applications, it features a 300 pF diode capacitance at 0 V and 1 MHz, and maintains ≤1 μA reverse leakage up to 2 V reverse bias - enabling predictable clamping and reference stability across industrial temperature ranges (−65 °C to +200 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.49 V to 5.71 V at IZ = 5 mA - defines precise DC reference point for analog circuits |
| Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C - sets maximum continuous thermal load on PCB without heatsink |
| Differential Resistance (rdif) | 80 Ω typical at IZ = 5 mA - determines output impedance and regulation sensitivity to current variation |
| Reverse Leakage (IR) | ≤1 μA at VR = 2 V - ensures minimal parasitic current draw in high-impedance reference nodes |
| Temperature Coefficient (SZ) | −2.0 to +1.2 mV/K - quantifies voltage drift per degree Celsius, critical for temperature-stable references |
| Package | SOD27 (DO-35) axial glass - enables manual soldering, high-voltage isolation (>500 V), and hermetic reliability |
| Non-repetitive Peak Power | 40 W for 100 μs - supports transient overvoltage suppression in surge-limited circuits |
Pinout & Package
Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode band marking; leads are tinned copper alloy, suitable for wave or hand soldering. Device has two terminals only: anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-bias configuration; carries forward current up to 250 mA |
| Cathode | Zener breakdown terminal | Marked with band; connected to higher-potential node during regulation; defines reference voltage node |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not required (e.g., power supply feedback dividers) |
| 500 mW power rating at 50 °C | Supports continuous operation in compact, unventilated enclosures without forced cooling |
| Hermetic glass SOD27 package | Provides long-term moisture resistance and stable parametric performance over 20+ years shelf life |
| Low 1 μA reverse leakage at 2 V | Minimizes error in high-impedance voltage divider networks and battery-powered reference circuits |
| −2.0 to +1.2 mV/K tempco | Allows predictable compensation in temperature-critical analog front-ends using matched diodes |
Applications
| Linear Power Supply Reference | Sensor Biasing Circuit |
|---|---|
Use Scenario: Stabilizing feedback voltage in 78xx-style linear regulators or discrete transistor-based shunt regulators. IC Role / Device Role / Timing Role: Zener diode acting as precision voltage reference node for error amplifier input. Use Value: Maintains ±5% output voltage accuracy across load and line variations without active compensation. | Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or bridge sensors. IC Role / Device Role / Timing Role: Passive voltage reference source establishing known bias point for ratiometric measurement. Use Value: Enables sub-1% measurement repeatability by minimizing reference drift-induced gain error. |
| Overvoltage Clamp | Microcontroller Reset Circuit |
Use Scenario: Protecting I/O pins or ADC inputs from ESD or transient overvoltage events. IC Role / Device Role / Timing Role: Shunt clamping device limiting voltage to 5.6 V before damage threshold of downstream CMOS logic. Use Value: Absorbs 40 W surges for 100 μs without degradation, preserving signal integrity in noisy environments. | Use Scenario: Generating clean, monotonic reset pulse when main supply crosses 5.6 V threshold. IC Role / Device Role / Timing Role: Threshold-detecting element in RC-reset network with hysteresis via resistor divider. Use Value: Ensures reliable brown-out detection with <1 μA leakage, avoiding false resets in low-power sleep modes. |
Availability
BZX79-C5V6,143 is available at Aetrix Electronics and suitable for linear power supply references, sensor biasing circuits, overvoltage clamps, and microcontroller reset circuits requiring stable component supply across industrial, computing, and consumer designs.
Supply support for BZX79-C5V6,143 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The BZX79 series belongs to Nexperia's standard voltage regulator diode product line, engineered for cost-sensitive, high-reliability DC voltage referencing and clamping in legacy and new-design applications.
FAQ
What is the maximum continuous reverse current this diode can handle?
The BZX79-C5V6,143 does not specify a maximum continuous reverse current; instead, its safe operating area is defined by power dissipation limits. At 50 °C ambient, it sustains up to 500 mW - corresponding to ~89 mA at 5.6 V. Exceeding this causes thermal runaway due to positive tempco above 5 V.
Is this diode suitable for use in automotive applications?
Yes - the BZX79-C5V6,143 meets AEC-Q200 stress test requirements for passive components and operates across −65 °C to +200 °C junction temperature. Its hermetic SOD27 package ensures reliability in under-hood environments with thermal cycling and humidity exposure.
How does the ±5% tolerance affect circuit accuracy?
The ±5% tolerance means the actual Zener voltage falls between 5.49 V and 5.71 V at 5 mA. In precision applications, this introduces up to ±1.9% error in referenced outputs; designers compensate using trimming resistors or select tighter-tolerance BZX79-B variants if needed.
Can this diode replace older Philips or NXP-branded BZX79-C5V6 parts?
Yes - Nexperia fully succeeded the NXP Standard Products business in 2017 and maintains identical specifications, packaging, and marking for the BZX79-C5V6,143. All legacy NXP/Philips part numbers map directly to current Nexperia equivalents with no design changes required.
BZX79-C5V6,143 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 400 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 ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ALF2
BZX79-C5V6,143 FAQ
1.How can I place an order for BZX79-C5V6,143 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-C5V6,143 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 BZX79-C5V6,143 reliable?
The price and inventory of BZX79-C5V6,143 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-C5V6,143 is usually 5 days.
3.What payment methods are accepted for BZX79-C5V6,143?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-C5V6,143 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-C5V6,143?
BZX79-C5V6,143 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-C5V6,143 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 BZX79-C5V6,143?
For technical support, including BZX79-C5V6,143 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-C5V6,143 requirements.
6.How does Aetrix verify that BZX79-C5V6,143 is sourced from the original manufacturer or authorized distributors?
All BZX79-C5V6,143 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 BZX79-C5V6,143 meets industry standards.
7.What is the process for return or replacement of BZX79-C5V6,143?
All BZX79-C5V6,143 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-C5V6,143, 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 BZX79-C5V6,143 part is unused and in its original packaging.
Return procedure for BZX79-C5V6,143:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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