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Nexperia USA Inc. BZX8450-C8V2VL
- Part No.:
- BZX8450-C8V2VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C8V2VL.pdf
- Description:
- DIODE ZENER 8.2V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,869
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Product details
Overview
BZX8450-C8V2VL from Nexperia is a low-current Zener voltage regulator diode in SOT23 package, designed for precision voltage reference and low-power biasing at 8.2 V nominal regulation voltage with ±5 % tolerance, 80 Ω differential resistance at IZ = 5 mA, and specified test current of 50 μA - ideal for battery-powered sensor nodes and portable microcontroller reset circuits.
For engineers reviewing the BZX8450-C8V2VL datasheet, BZX8450-C8V2VL pinout, BZX8450-C8V2VL application, or BZX8450-C8V2VL equivalent, this page delivers verified electrical parameters, thermal behavior, SOT23 terminal mapping, and real-world use cases for low-current regulation in space-constrained embedded systems.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable 8.2 V output across load variations by conducting reverse current above its breakdown threshold. Its 50 μA test current enables ultra-low quiescent operation, while intentional leakage optimization (per AN90031) reduces switching noise in signal conditioning paths.
Thermal resistance from junction to ambient is 500 K/W on FR4 PCB, limiting continuous power dissipation to 250 mW at Tamb ≤ 25 °C. The cathode-connected thermal path (Rth(j-sp) = 330 K/W) supports localized heat sinking via PCB copper pour under pin 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 8.2 V (min 7.79 V, max 8.61 V at IZ = 50 μA) - defines precise reference point for analog sensing and supply monitoring |
| Differential Resistance | 80 Ω (max at IZ = 5 mA) - determines regulation stiffness against load transients |
| Forward Voltage | 0.9 V (max at IF = 10 mA) - sets forward conduction loss in clamp or protection configurations |
| Total Power Dissipation | 250 mW (at Tamb ≤ 25 °C on FR4 PCB) - constrains maximum steady-state reverse power handling |
| Reverse Current | 0.1 μA (max at VR = 6.2 V) - ensures minimal standby leakage in always-on circuits |
| Temperature Coefficient | +3.2 mV/K (typical) - quantifies voltage drift over temperature for stability-critical references |
| Diode Capacitance | 150 pF (at VR = 0 V, f = 1 MHz) - impacts high-frequency noise filtering and AC coupling performance |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), rated for −55 °C to +150 °C ambient operation and compatible with standard reflow/wave soldering footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased input terminal; connects to lower-potential node in shunt regulation |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating - no PCB trace or component attachment |
| 3 | Cathode (K) | Regulated output node; ties to reference voltage rail and provides thermal conduction path to PCB |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 μA - enables regulation in microamp-level supply rails without loading error |
| Tight voltage tolerance | ±5 % (C-series) - supports accurate threshold detection in ADC reference and comparator circuits |
| Optimized leakage profile | Intentional minor rise per AN90031 - improves transient response and reduces broadband noise in signal chains |
| Compact SMT footprint | SOT23 package - saves board area in wearables, IoT sensors, and multi-rail PMIC supervision |
| Robust thermal rating | 150 °C max junction temperature - sustains reliability in sealed enclosures and thermally dense layouts |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Reset Circuitry |
|---|---|
|
Use Scenario: Stabilizing reference voltage for analog front-end amplifiers in temperature/humidity transmitters operating from coin-cell batteries. IC Role / Device Role / Timing Role: Shunt voltage reference providing 8.2 V bias to op-amp rails and ADC reference inputs. Use Value: 50 μA test current minimizes battery drain while 80 Ω dynamic resistance maintains <0.5 % line regulation across 1–10 kΩ load range. |
Use Scenario: Generating clean, temperature-stable reset threshold for ARM Cortex-M0+ MCUs in smart metering modules. IC Role / Device Role / Timing Role: Zener-based reset supervisor generating logic-level reset pulse when VDD drops below 8.2 V. Use Value: +3.2 mV/K temperature coefficient aligns with MCU VDD droop profile, reducing false resets over −25 °C to +70 °C. |
| Portable Medical Diagnostic Device | Low-Power RF Transceiver Bias |
|
Use Scenario: Supplying regulated bias to photodiode transimpedance amplifier in handheld pulse oximeters. IC Role / Device Role / Timing Role: Low-noise voltage reference establishing DC operating point for analog signal chain. Use Value: Optimized leakage profile per AN90031 suppresses switching artifacts near 100 Hz physiological signals, improving SNR by ≥6 dB. |
Use Scenario: Providing stable gate bias for discrete LNA FETs in sub-GHz ISM band wireless modules powered by Li-SOCl₂ cells. IC Role / Device Role / Timing Role: Precision shunt regulator setting VGS for optimal gain and noise figure in RF front-end stages. Use Value: 150 pF capacitance avoids resonance with matching networks up to 2.4 GHz, preserving impedance control in 50 Ω RF paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5231BS-7-F (Diodes Inc.) | 8.2 V ±5 %, 200 mW Ptot, 100 Ω rdiff at 20 mA - higher test current, higher power rating | Requires ≥20 mA bias; less suitable for sub-100 μA systems but better for higher-current analog rails | Select when circuit can support 20 mA test current and needs margin for transient surges |
| BZX84-C8V2 (Nexperia, standard variant) | Identical electrical specs but marked "F5%" instead of "VL"; same SOT23 package and thermal behavior | No functional difference - VL suffix denotes specific tape-and-reel packaging per customer order code | Choose BZX8450-C8V2VL only when exact ordering code compliance (e.g., OEM BOM lock) is required |
Compared with MMBZ5231BS-7-F, BZX8450-C8V2VL delivers superior low-current regulation fidelity at 50 μA, while BZX84-C8V2 offers identical performance without packaging-specific marking - making the VL variant strictly a logistics identifier, not an electrical upgrade.
Availability
BZX8450-C8V2VL is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, microcontroller reset circuitry, and portable medical diagnostic devices requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX8450-C8V2VL 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
BZX8450 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-sensitive applications where regulation accuracy at microamp bias currents is critical - not general-purpose power regulation.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZX8450-C8V2VL has a nominal Zener voltage of 8.2 V, with guaranteed breakdown occurring between 7.79 V and 8.61 V at 50 μA test current. It is not rated for sustained reverse voltage above its specified VZ range; operation beyond 8.61 V risks exceeding its 250 mW power limit and thermal failure.
Can this Zener diode be used in series or parallel configurations?
Series connection is acceptable for higher reference voltages if matched units are used and thermal coupling is ensured; parallel use is strongly discouraged due to mismatched Zener impedances causing current hogging and thermal runaway - each device must regulate independently on its own branch.
Does the 'VL' suffix indicate a different electrical specification?
No - the 'VL' suffix denotes a specific tape-and-reel packaging configuration per Nexperia's internal ordering system and does not reflect any electrical, thermal, or reliability difference from the base BZX84-C8V2 or BZX8450-C8V2 variants; all share identical datasheet parameters.
How does the 50 μA test current affect circuit design?
Designing around 50 μA means the series resistor must be sized to deliver ≥50 μA across the full expected input voltage range while staying within 250 mW dissipation. For example, with 12 V input and 8.2 V output, RS ≤ (12 − 8.2) V / 50 μA = 76 kΩ - ensuring stable regulation without excessive bias current draw.
BZX8450-C8V2VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8450
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 6.2 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-C8V2VL FAQ
1.How can I place an order for BZX8450-C8V2VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C8V2VL 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-C8V2VL reliable?
The price and inventory of BZX8450-C8V2VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8450-C8V2VL is usually 5 days.
3.What payment methods are accepted for BZX8450-C8V2VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C8V2VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C8V2VL?
BZX8450-C8V2VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C8V2VL 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-C8V2VL?
For technical support, including BZX8450-C8V2VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C8V2VL requirements.
6.How does Aetrix verify that BZX8450-C8V2VL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C8V2VL 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-C8V2VL meets industry standards.
7.What is the process for return or replacement of BZX8450-C8V2VL?
All BZX8450-C8V2VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C8V2VL, 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-C8V2VL part is unused and in its original packaging.
Return procedure for BZX8450-C8V2VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C8V2VL Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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