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Nexperia USA Inc. BZX79-B6V2,133
- Part No.:
- BZX79-B6V2,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-B6V2,133.pdf
- Description:
- DIODE ZENER 6.2V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:266
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Product details
Overview
BZX79-B6V2,133 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 40–150 Ω differential resistance and 0.4–3.7 mV/K temperature coefficient. It delivers stable regulation in power supply feedback loops, sensor biasing, and precision analog circuitry.
For engineers reviewing the BZX79-B6V2,133 datasheet, BZX79-B6V2,133 pinout, BZX79-B6V2,133 application, or BZX79-B6V2,133 equivalent, this page provides verified electrical parameters, thermal behavior, reverse leakage at VR = 4 V (≤3 μA), junction-to-ambient thermal resistance (380 K/W), and validated alternatives for voltage reference design.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 6.2 V at IZtest = 5 mA, exhibiting tight ±2% tolerance and low dynamic impedance (typ. 40 Ω). Its temperature coefficient ranges from +0.4 to +3.7 mV/K, enabling predictable drift compensation in mid-voltage references.
Designed for low-power stabilization, it supports continuous forward current up to 250 mA and non-repetitive peak reverse power dissipation of 40 W (100 μs pulse), with thermal resistance from junction to ambient rated at 380 K/W under standard PCB mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.08–6.32 V at IZ = 5 mA - ensures precise 6.2 V regulation within ±2% tolerance for reference stability |
| Differential Resistance (rdif) | 40–150 Ω - determines output impedance and load regulation sensitivity in shunt reference circuits |
| Reverse Current (IR) | ≤3 μA at VR = 4 V - guarantees minimal quiescent power loss and high open-circuit accuracy |
| Total Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C - defines maximum steady-state power handling on standard PCB layout |
| Junction-to-Ambient Rth | 380 K/W - sets thermal rise per watt, critical for derating in enclosed or high-temperature environments |
| Temperature Coefficient (SZ) | +0.4 to +3.7 mV/K - enables predictable voltage drift vs. temperature for compensated designs |
Pinout & Package
Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode indicated by a band. Leads are tinned copper-clad steel; body diameter 1.85 mm, length 4.25 mm, lead spacing 25.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in shunt configuration | Connected to ground or lower potential node when used as voltage reference |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 6.2 V reference relative to anode; marked with band |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter reference accuracy without post-calibration in cost-sensitive analog systems |
| Hermetic glass SOD27 package | Ensures long-term parameter stability and moisture resistance in industrial environments |
| Low 3 μA reverse leakage at 4 V | Minimizes standby current in battery-powered voltage monitors and sensor interfaces |
| 40 W non-repetitive surge capability | Provides transient overvoltage protection in low-energy clamp applications |
Applications
| Power Supply Feedback Reference | Sensor Biasing Circuit |
|---|---|
Use Scenario: Used in the feedback path of linear regulators or switching converter error amplifiers to set output voltage. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt voltage reference. Use Value: Delivers 6.2 V reference with ±2% tolerance and low dynamic impedance, improving output regulation accuracy by ≤0.5% over wider line/load ranges. | Use Scenario: Provides stable bias voltage to bridge sensors, RTDs, or op-amp input stages in measurement front-ends. IC Role / Device Role / Timing Role: Passive voltage reference source for excitation and offset setting. Use Value: Low 3 μA leakage and predictable +2.3 mV/K tempco allow accurate cold-junction compensation and ratiometric scaling in 12-bit+ data acquisition. |
| Overvoltage Clamp Protection | Microcontroller Reset Circuit |
Use Scenario: Placed across sensitive inputs or rails to limit transient spikes below damage thresholds. IC Role / Device Role / Timing Role: Shunt clamping device absorbing energy during ESD or inductive kick events. Use Value: 40 W non-repetitive surge rating and fast 100 μs response enable robust protection without crowbar action or latch-up risk. | Use Scenario: Generates clean, monotonic reset signal for MCUs during power-up or brown-out conditions. IC Role / Device Role / Timing Role: Voltage threshold detector via resistor-divider and comparator input. Use Value: Tight 6.2 V tolerance and low tempco ensure consistent reset assertion across −40 °C to +125 °C, eliminating false resets in automotive ECUs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5234B,115 | Surface-mount SOT-23 package; same 6.2 V ±5%; higher IZSM (10 A vs. 6 A) | Requires PCB rework for SMT assembly; better suited for space-constrained consumer boards | Select for automated assembly where board real estate is limited and ±5% tolerance is acceptable |
| 1N4735A-TAP | Through-hole DO-41; 6.2 V ±5%; higher Ptot (1 W); larger package footprint | Higher power handling but looser tolerance and less stable tempco than BZX79-B6V2 | Select when >500 mW continuous dissipation is required and ±2% accuracy is not critical |
Compared with MMBZ5234B,115 and 1N4735A-TAP, BZX79-B6V2,133 offers superior ±2% tolerance and optimized thermal performance in the compact DO-35 form factor-making it preferred for precision analog references where through-hole reliability and tight regulation are jointly required.
Availability
BZX79-B6V2,133 is available at Aetrix Electronics and suitable for power supply feedback references, sensor biasing circuits, overvoltage clamp protection, and microcontroller reset circuits requiring stable component supply and long-term parametric consistency.
Supply support for BZX79-B6V2,133 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, formed in 2017 from the former NXP Standard Products division, with focus on automotive, industrial, computing, and consumer markets.
The BZX79 series belongs to Nexperia's legacy voltage regulator diode product line, engineered specifically for low-power, high-stability voltage reference and stabilization in cost-sensitive, high-volume applications.
FAQ
What is the maximum continuous power dissipation for BZX79-B6V2,133?
The BZX79-B6V2,133 has a total power dissipation rating of 500 mW at ambient temperature of 50 °C with standard PCB mounting (lead length ≤8 mm). Derating is required above 50 °C at 5.3 mW/°C based on its 380 K/W junction-to-ambient thermal resistance.
Does BZX79-B6V2,133 have a specified Zener test current?
Yes - the nominal Zener voltage of 6.2 V is specified at a test current (IZtest) of 5 mA. Electrical characteristics including differential resistance and temperature coefficient are also measured under this condition, ensuring repeatable validation across production lots.
How is polarity identified on the BZX79-B6V2,133 package?
The cathode is marked by a distinct color band on the glass body of the SOD27 (DO-35) package. When oriented with the band facing left, the left lead is the cathode and the right lead is the anode - consistent with industry-standard axial diode marking conventions.
Can BZX79-B6V2,133 be used in place of a 6.2 V Zener with ±5% tolerance?
Yes, but only where tighter regulation is beneficial. The BZX79-B6V2,133 offers ±2% tolerance versus ±5% for C-series variants, reducing reference uncertainty by more than half. No circuit modification is needed, though its lower dynamic impedance may slightly improve load regulation in shunt configurations.
BZX79-B6V2,133 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-B6V2,133 FAQ
1.How can I place an order for BZX79-B6V2,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-B6V2,133 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-B6V2,133 reliable?
The price and inventory of BZX79-B6V2,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B6V2,133 is usually 5 days.
3.What payment methods are accepted for BZX79-B6V2,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B6V2,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-B6V2,133?
BZX79-B6V2,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-B6V2,133 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-B6V2,133?
For technical support, including BZX79-B6V2,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B6V2,133 requirements.
6.How does Aetrix verify that BZX79-B6V2,133 is sourced from the original manufacturer or authorized distributors?
All BZX79-B6V2,133 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-B6V2,133 meets industry standards.
7.What is the process for return or replacement of BZX79-B6V2,133?
All BZX79-B6V2,133 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B6V2,133, 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-B6V2,133 part is unused and in its original packaging.
Return procedure for BZX79-B6V2,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX79-B6V2,133 Tags
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