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Nexperia USA Inc. BZX79-B6V2,143
- Part No.:
- BZX79-B6V2,143
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-B6V2,143.pdf
- Description:
- DIODE ZENER 6.2V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:3,180
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Product details
Overview
BZX79-B6V2,143 from Nexperia is a ±2% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, designed for low-power voltage reference and stabilization at 6.2 V nominal with 5 mA test current, 40–150 Ω differential resistance, and <3 μA reverse leakage at 4 V. It delivers stable regulation in compact analog power rails and sensor bias networks.
For engineers reviewing the BZX79-B6V2,143 datasheet, BZX79-B6V2,143 pinout, BZX79-B6V2,143 application, or BZX79-B6V2,143 equivalent, this part supports precision low-current references where thermal coefficient (0.4–2.3 mV/K), junction capacitance (≤200 pF), and non-repetitive surge capability (6 A peak reverse current) are critical selection criteria.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 6.2 V at IZ = 5 mA, exhibiting a typical temperature coefficient of +2.3 mV/K - indicating positive drift with rising temperature - and a differential resistance of 40 Ω (typ.) to 150 Ω (max.), ensuring predictable regulation under varying load conditions.
Its hermetic SOD27 glass package provides reliable long-term stability and low leakage (<3 μA at VR = 4 V), while its 500 mW total power dissipation rating at Tamb = 50 °C and 40 W non-repetitive peak reverse power handling (tp = 100 μs) support transient-tolerant reference designs in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.08–6.32 V at IZ = 5 mA; ensures tight ±2% regulation window for precision biasing |
| Differential Resistance rdif | 40–150 Ω; defines output impedance and load regulation sensitivity |
| Reverse Leakage IR | ≤3 μA at VR = 4 V; minimizes quiescent current loss in battery-powered references |
| Power Dissipation Ptot | 500 mW at Tamb = 50 °C; sets maximum continuous DC power in standard PCB mounting |
| Non-repetitive Peak Current IZSM | 6.0 A at tp = 100 μs; enables transient overvoltage clamping without failure |
| Temperature Coefficient SZ | +0.4 to +3.7 mV/K; indicates predictable positive VZ drift with junction temperature rise |
| Junction Capacitance Cd | ≤200 pF at f = 1 MHz, VR = 0 V; limits high-frequency noise coupling in reference nodes |
Pinout & Package
The BZX79-B6V2,143 is a two-terminal axial-leaded Zener diode in the SOD27 (DO-35) hermetically sealed glass package. The cathode is marked by a band on the glass body; the anode is the unmarked lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased Zener terminal | Connected to higher potential node; conducts when reverse voltage exceeds 6.2 V |
| Anode (unbanded end) | Reference ground return | Provides low-impedance path for Zener current; establishes regulated voltage at cathode |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter system-level voltage reference accuracy without post-calibration |
| Hermetic glass SOD27 package | Guarantees long-term parameter stability and moisture resistance in harsh environments |
| Low 3 μA reverse leakage at 4 V | Reduces standby current in always-on sensor bias and low-power MCU reference circuits |
| 40 Ω typical differential resistance | Delivers superior line/load regulation vs. ±5% Zener variants in feedback-sensitive applications |
| +2.3 mV/K typical tempco | Allows predictable compensation in temperature-stable reference designs using matched components |
Applications
| Industrial Sensor Biasing | Microcontroller Voltage Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode acting as a shunt voltage reference, regulating bias voltage independent of supply ripple. Use Value: ±2% tolerance and low tempco ensure <0.5% full-scale error across –40°C to +85°C operating range. | Use Scenario: Supplying precise 6.2 V reference to ADC voltage reference pin in low-cost 8-bit microcontrollers. IC Role / Device Role / Timing Role: Passive shunt regulator establishing clean, low-noise reference rail for analog-to-digital conversion. Use Value: 40 Ω rdif and <3 μA leakage minimize reference droop and quantization error under varying ADC input loading. |
| Overvoltage Protection Clamp | Low-Power LED Current Regulation |
Use Scenario: Clamping transient surges on 5 V logic rails in industrial HMI panels exposed to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Fast-acting Zener clamp absorbing short-duration spikes up to 40 W (100 μs). Use Value: 6 A non-repetitive peak current rating protects downstream logic without requiring series current limiting. | Use Scenario: Setting constant current for indicator LEDs in battery-powered handheld instruments with 7–12 V supply rails. IC Role / Device Role / Timing Role: Shunt regulator diverting excess current around LED to maintain fixed forward voltage drop. Use Value: Stable 6.2 V regulation enables ±2% LED brightness consistency across supply voltage variation and temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX79-C6V2,113 | ±5% tolerance (5.8–6.6 V), higher max rdif (30–80 Ω), 2 μA IR at 4 V | Lower cost; acceptable where system calibration compensates for wider VZ spread | Select for cost-sensitive consumer applications where ±2% is not required |
| MMBZ5234B,215 | SOT-23 surface-mount package, same ±2% tolerance, 150 mW Ptot, 100 Ω rdif | Enables high-density PCB layouts but requires reflow-compatible assembly and lacks hermetic sealing | Select when board space is constrained and automated SMT assembly is used |
Compared with BZX79-C6V2,113 and MMBZ5234B,215, the BZX79-B6V2,143 offers superior long-term stability via hermetic packaging and tighter regulation for analog-critical roles, while trading off size and assembly compatibility for reliability in industrial and sensor-grade designs.
Availability
BZX79-B6V2,143 is available at Aetrix Electronics and suitable for industrial sensor biasing, microcontroller voltage reference, and overvoltage protection clamping requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for BZX79-B6V2,143 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 semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-reliability diodes, MOSFETs, and logic devices for automotive and industrial markets.
The BZX79 series belongs to Nexperia's legacy Zener voltage regulator portfolio, engineered specifically for low-power, high-stability voltage reference and clamping in cost-sensitive yet reliability-critical applications.
FAQ
What is the maximum continuous power dissipation for BZX79-B6V2,143?
The BZX79-B6V2,143 has a maximum total power dissipation of 500 mW when mounted on a PCB at ambient temperature ≤50 °C with leads ≤8 mm. At higher ambient temperatures or with longer leads, derating applies per the Rth j-a = 380 K/W thermal resistance specification.
Does BZX79-B6V2,143 have a specified forward voltage?
Yes - the forward voltage is specified as ≤0.9 V at IF = 10 mA. This value reflects the diode's silicon junction behavior in forward conduction and is relevant for polarity-check circuits or reverse-polarity protection configurations where forward bias may occur.
Can BZX79-B6V2,143 be used in surface-mount designs?
No - it uses an axial-leaded SOD27 (DO-35) glass package intended for through-hole mounting. For surface-mount equivalents, consider the MMBZ5234B (SOT-23) or BZX84-B6V2 (SOT-23), which share the same ±2% tolerance and 6.2 V rating but differ in package, thermal performance, and surge capability.
What is the significance of the 'B' suffix in BZX79-B6V2?
The 'B' denotes the ±2% Zener voltage tolerance grade within the BZX79 family. This distinguishes it from 'C'-grade parts (≈±5% tolerance) and ensures tighter regulation for applications demanding higher reference accuracy without trimming or calibration.
BZX79-B6V2,143 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):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 4 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-B6V2,143 FAQ
1.How can I place an order for BZX79-B6V2,143 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-B6V2,143 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-B6V2,143 reliable?
The price and inventory of BZX79-B6V2,143 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B6V2,143 is usually 5 days.
3.What payment methods are accepted for BZX79-B6V2,143?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B6V2,143 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-B6V2,143?
BZX79-B6V2,143 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-B6V2,143 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-B6V2,143?
For technical support, including BZX79-B6V2,143 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B6V2,143 requirements.
6.How does Aetrix verify that BZX79-B6V2,143 is sourced from the original manufacturer or authorized distributors?
All BZX79-B6V2,143 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-B6V2,143 meets industry standards.
7.What is the process for return or replacement of BZX79-B6V2,143?
All BZX79-B6V2,143 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B6V2,143, 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-B6V2,143 part is unused and in its original packaging.
Return procedure for BZX79-B6V2,143:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX79-B6V2,143 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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