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Nexperia USA Inc. BZX8450-C6V2R
- Part No.:
- BZX8450-C6V2R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C6V2R.pdf
- Description:
- DIODE ZENER 6.2V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,490
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Product details
Overview
BZX8450-C6V2R from Nexperia is a low-current Zener voltage regulator diode in SOT23 package, designed for precision biasing and voltage reference in portable electronics. It delivers 6.2 V nominal regulation at 50 µA test current, with ±5 % tolerance, 160 Ω differential resistance at 5 mA, and 0.4 mV/K temperature coefficient - enabling stable operation in battery-powered sensor nodes and low-power microcontroller reset circuits.
For engineers reviewing the BZX8450-C6V2R datasheet, BZX8450-C6V2R pinout, BZX8450-C6V2R application, or BZX8450-C6V2R equivalent, this page provides verified electrical parameters, thermal behavior, SOT23 terminal mapping, and validated alternative parts for low-current voltage reference design.
Technical Context
This Zener diode operates in reverse breakdown mode with specified regulation at IZ = 50 µA - optimized for ultra-low quiescent current systems. Its 160 Ω dynamic impedance at 5 mA ensures minimal output voltage deviation under light load variation.
The device exhibits a positive temperature coefficient of +0.4 mV/K near 6.2 V, reducing thermal drift in ambient-temperature-stable references. Its 110 pF capacitance at 0 V and 1 MHz supports noise-sensitive analog front-ends without requiring additional filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.2 V at IZ = 50 µA - defines precise reference point for low-bias circuits |
| Tolerance | ±5 % - enables cost-effective selection for non-critical voltage clamping |
| Differential Resistance | 160 Ω at IZ = 5 mA - limits output voltage shift to ≤0.8 V per 5 mA load change |
| Temperature Coefficient | +0.4 mV/K - minimizes drift to ~2.5 mV over −40 °C to +85 °C operating range |
| Forward Voltage | ≤0.9 V at IF = 10 mA - ensures low-loss anode-to-cathode conduction during forward bias |
| Max Power Dissipation | 250 mW at Tamb ≤ 25 °C - sets absolute upper limit for continuous DC power handling |
| Reverse Leakage | ≤5.0 µA at VR = 5.0 V - guarantees negligible standby current in high-impedance bias networks |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch) with gull-wing leads and standard FR4 PCB footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connects to lower-potential node; reverse-biased during regulation |
| 2 | Not Connected (n.c.) | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling |
| 3 | Cathode (K) | Connects to higher-potential node; carries regulated output current during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in nanoampere-bias circuits like RTC backup supplies |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - improves switching speed and reduces broadband noise |
| Thermal resistance | Rth(j-sp) = 330 K/W - allows direct thermal path from junction to cathode solder point |
| Capacitance control | Cd = 110 pF at 0 V, 1 MHz - maintains signal integrity in high-frequency reference paths |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
|
Use Scenario: Providing stable 6.2 V reference to op-amp input stages in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Zener voltage reference establishing fixed threshold for analog signal conditioning. Use Value: Enables <1 µA total bias current while maintaining ±10 mV regulation accuracy across −20 °C to +70 °C. |
Use Scenario: Generating clean reset voltage for 3.3 V microcontrollers during brown-out conditions. IC Role / Device Role / Timing Role: Precision shunt regulator defining reset logic threshold independent of supply ripple. Use Value: Delivers <5 µA leakage at 5 V, ensuring reliable reset assertion without loading LDO output. |
| Low-Power ADC Reference | LED Current Setpoint |
|
Use Scenario: Supplying reference voltage to 12-bit SAR ADCs in energy-harvesting IoT endpoints. IC Role / Device Role / Timing Role: Low-noise voltage source for ADC internal reference buffer input. Use Value: 110 pF capacitance and +0.4 mV/K TC minimize code dispersion across temperature and sampling rate. |
Use Scenario: Setting constant current for indicator LEDs in handheld medical devices. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed voltage drop across current-sense resistor. Use Value: 160 Ω dynamic impedance ensures <±2 % LED brightness variation over 0.1–1 mA drive range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2 | Same 6.2 V rating, ±5 % tolerance, but 400 mW Ptot and 200 Ω rdiff at 5 mA | Higher power handling suits moderate-current regulators; less suitable for sub-100 µA bias | Select when >100 µA reference current or >150 °C ambient operation required |
| MMSZ4687 | 6.2 V, ±5 %, 500 mW Ptot, 100 Ω rdiff at 20 mA, SOD-123 package | Larger footprint and higher test current (20 mA) - better for higher-load references | Choose for designs needing lower dynamic impedance at >5 mA or legacy SOD-123 layout compatibility |
Compared with BZX8450-C6V2R, BZX84-C6V2 offers higher power margin but looser regulation at microamp currents, while MMSZ4687 provides lower impedance at higher bias but requires larger board area and consumes more quiescent current.
Availability
BZX8450-C6V2R is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and low-power ADC reference applications requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX8450-C6V2R 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The BZX8450 series belongs to Nexperia's low-current Zener regulator product line, engineered specifically for battery-constrained and space-limited applications where minimal leakage, tight voltage tolerance, and SOT23 scalability are critical.
FAQ
What is the maximum reverse voltage before breakdown for BZX8450-C6V2R?
The device enters controlled Zener breakdown at its nominal 6.2 V rating, with guaranteed regulation between 5.89 V (min) and 6.51 V (max) at IZ = 50 µA. Absolute maximum reverse voltage is not defined - operation above 6.51 V risks exceeding the 250 mW power limit unless current is strictly limited by external series resistance.
Can BZX8450-C6V2R be used in forward conduction mode?
Yes - it conducts as a standard silicon diode with ≤0.9 V forward voltage at 10 mA. However, its primary design purpose is reverse-bias regulation; forward conduction is only specified for protection or dual-role circuit functions, not as a rectifier replacement.
How does the "C" suffix affect performance versus "B" variants?
The "C" suffix denotes ±5 % tolerance and intentional minor leakage optimization (per AN90031) for faster transient response and lower noise. "B" variants offer ±2 % tolerance but higher dynamic impedance - making "C" preferred for low-current, noise-sensitive references.
Is pin 2 truly unconnected, or does it serve a mechanical function?
Pin 2 is electrically unconnected (n.c.) and internally isolated - no bond wire or die connection exists. It serves only as a mechanical anchor for the leadframe and must remain unconnected on the PCB to prevent unintended coupling or thermal shorting.
BZX8450-C6V2R 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):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX8450-C6V2R FAQ
1.How can I place an order for BZX8450-C6V2R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C6V2R 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 BZX8450-C6V2R reliable?
The price and inventory of BZX8450-C6V2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8450-C6V2R is usually 5 days.
3.What payment methods are accepted for BZX8450-C6V2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C6V2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C6V2R?
BZX8450-C6V2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C6V2R 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 BZX8450-C6V2R?
For technical support, including BZX8450-C6V2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C6V2R requirements.
6.How does Aetrix verify that BZX8450-C6V2R is sourced from the original manufacturer or authorized distributors?
All BZX8450-C6V2R 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 BZX8450-C6V2R meets industry standards.
7.What is the process for return or replacement of BZX8450-C6V2R?
All BZX8450-C6V2R units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C6V2R, 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 BZX8450-C6V2R part is unused and in its original packaging.
Return procedure for BZX8450-C6V2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C6V2R Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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