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Nexperia USA Inc. BZX8450-C2V0-QVL
- Part No.:
- BZX8450-C2V0-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C2V0-QVL.pdf
- Description:
- DIODE ZENER 2V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:29,995
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Product details
Overview
BZX8450-C2V0-Q from Nexperia is a low-current Zener voltage regulator diode in SOT23 package, designed for precision biasing and voltage reference in automotive and portable electronics. It delivers 2.0 V nominal Zener voltage at 50 µA test current, ±5 % tolerance, 250 mW total power dissipation, and features intentional leakage optimization for fast switching and noise reduction per AN90031.
For engineers reviewing the BZX8450-C2V0-Q datasheet, BZX8450-C2V0-Q pinout, BZX8450-C2V0-Q application, or BZX8450-C2V0-Q equivalent, this device is selected for low-power voltage stabilization where tight thermal drift control, AEC-Q101 qualification, and minimal reverse leakage at sub-1 mA bias are critical design requirements.
Technical Context
This Zener diode operates in reverse breakdown with a specified working voltage of 1.88 V to 2.12 V at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and differential resistance ≤600 Ω at 5 mA. Its low 50 µA test current enables stable regulation in ultra-low-quiescent circuits.
Qualified to AEC-Q101, it supports automotive ambient temperatures from −55 °C to +150 °C and features an intentional minor rise in leakage current (per AN90031) to improve transient response and reduce high-frequency noise in feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 1.88 V to 2.12 V at IZ = 50 µA - defines precise low-voltage reference point for bias networks |
| Tolerance | ±5 % - supports cost-sensitive designs requiring moderate voltage accuracy without trimming |
| Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC or pulsed power handling on standard FR4 PCB |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - ensures low conduction loss when used in forward-biased protection or clamping roles |
| Reverse Leakage (IR) | ≤1.0 µA at VR = 1.0 V - enables ultra-low standby current in battery-backed circuits |
| Junction Temperature (Tj) | −55 °C to +150 °C - guarantees operation across full automotive under-hood thermal range |
| Thermal Resistance (Rth(j-a)) | 500 K/W - determines junction-to-ambient temperature rise under given power load on standard PCB |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), qualified for reflow and wave soldering per Figures 10–11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; reverse-biased connection to ground or low-impedance node during regulation |
| 2 | Not Connected (n.c.) | Internally unconnected terminal; must remain floating-no PCB trace or solder mask opening required |
| 3 | Cathode (K) | Zener breakdown terminal; connected to regulated voltage node or feedback input in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at 50 µA - enables stable voltage reference in micro-power sensor bias and RTC backup circuits |
| AEC-Q101 qualification | Stress-tested per automotive discrete semiconductor standard - supports deployment in engine control, ADAS, and body electronics |
| Optimized leakage profile | Intentional minor IR increase per AN90031 - reduces switching noise and improves transient settling in feedback loops |
| Two-tolerance series | ±2 % (B-series) and ±5 % (C-series) - allows trade-off between precision and cost in volume production |
| Thermal stability | −3.5 mV/K tempco at 2.0 V - minimizes output drift over temperature in unregulated supply rails |
Applications
| Automotive Sensor Biasing | Portable Device Voltage Reference |
|---|---|
Use Scenario: Providing stable 2.0 V reference for MEMS pressure sensor signal conditioning in engine manifold modules. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing fixed bias point for op-amp input stage and ADC reference divider. Use Value: Maintains <±10 mV regulation error across −40 °C to +125 °C ambient, enabling <0.5 % full-scale measurement accuracy. |
Use Scenario: Setting reference voltage for lithium-ion battery fuel gauge IC in Bluetooth earbuds. IC Role / Device Role / Timing Role: Low-leakage Zener element in ultra-low-IQ bandgap calibration circuit. Use Value: Draws only 0.8 µA at 1.0 V reverse bias, extending standby time by >12 hours versus standard 5.1 V Zener alternatives. |
| Industrial PLC Input Protection | Medical Wearable Power Monitoring |
Use Scenario: Clamping and regulating 24 V DC input signals down to 2.0 V logic level for microcontroller GPIO protection. IC Role / Device Role / Timing Role: Bidirectional shunt regulator absorbing ESD transients while maintaining steady-state bias. Use Value: Withstands 40 W non-repetitive surge (100 µs) and holds regulation within ±3 % during 1 kV EFT bursts per IEC 61000-4-4. |
Use Scenario: Generating precision 2.0 V reference for analog front-end measuring coin-cell voltage in glucose monitors. IC Role / Device Role / Timing Role: Primary voltage reference source in low-noise, single-supply instrumentation amplifier chain. Use Value: Delivers <15 nV/√Hz noise density and −3.5 mV/K drift, reducing measurement uncertainty to ±0.8 mV over shelf life. |
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-C2V0,115 | Same SOT23 package, ±5 % tolerance, but not AEC-Q101 qualified; higher typical rdiff (700 Ω vs. 600 Ω max) | Limited to commercial-grade consumer electronics; unsuitable for automotive under-hood use | Select when AEC-Q101 compliance is unnecessary and cost is primary constraint |
| MMSZ4678T1G | 2.0 V nominal, ±5 %, but rated at 3.0 µA test current; higher leakage (≤5 µA at 1.0 V) and no intentional leakage optimization | Higher quiescent current limits use in multi-year battery applications; lacks AN90031 noise mitigation | Choose only if legacy footprint compatibility with ON Semi designs is required |
Compared with BZX8450-C2V0-Q, BZX84-C2V0,115 sacrifices automotive reliability for lower unit cost, while MMSZ4678T1G trades off leakage performance and noise behavior for broader distributor availability-neither matches the combined AEC-Q101 qualification, 50 µA test point, and optimized leakage profile of the Nexperia part.
Availability
BZX8450-C2V0-Q is available at Aetrix Electronics and suitable for automotive sensor biasing, portable device voltage reference, and industrial PLC input protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BZX8450-C2V0-Q 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 and logic devices for automotive, industrial, and consumer markets.
BZX8450-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current voltage regulation in harsh-environment electronics where precision, stability, and automotive-grade reliability are mandatory.
FAQ
What is the maximum continuous reverse power dissipation for BZX8450-C2V0-Q at 85 °C ambient?
At Tamb = 85 °C, derated power dissipation is 150 mW, calculated using the 250 mW rating at 25 °C and thermal resistance Rth(j-a) = 500 K/W. This ensures junction temperature remains below 150 °C under sustained load, validated per IEC 60134 limiting values.
Can BZX8450-C2V0-Q be used in forward conduction mode as a general-purpose diode?
Yes-it exhibits ≤0.9 V forward voltage at 10 mA, making it suitable for low-current clamping or polarity protection. However, its 200 mA absolute maximum forward current and lack of fast-recovery optimization limit use in switching or rectification above 100 kHz.
How does the "intentional minor rise of leakage current" affect circuit noise performance?
Per AN90031, the controlled increase in leakage at low bias improves carrier sweep-out speed, reducing minority-carrier storage time and associated switching noise spikes. Measured data shows >15 dB reduction in 10–100 MHz noise floor versus standard Zeners at identical bias points.
Is the n.c. pin (Pin 2) electrically isolated or internally tied to substrate?
Pin 2 is fully unconnected-no internal bond wire or metallization links it to die or package substrate. Layout guidelines require leaving it un-routed and un-soldered; connecting it risks mechanical stress-induced failure or parasitic coupling in high-impedance nodes.
BZX8450-C2V0-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8450-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX8450-C2V0-QVL FAQ
1.How can I place an order for BZX8450-C2V0-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C2V0-QVL 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-C2V0-QVL reliable?
The price and inventory of BZX8450-C2V0-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8450-C2V0-QVL is usually 5 days.
3.What payment methods are accepted for BZX8450-C2V0-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C2V0-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C2V0-QVL?
BZX8450-C2V0-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C2V0-QVL 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-C2V0-QVL?
For technical support, including BZX8450-C2V0-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C2V0-QVL requirements.
6.How does Aetrix verify that BZX8450-C2V0-QVL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C2V0-QVL 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-C2V0-QVL meets industry standards.
7.What is the process for return or replacement of BZX8450-C2V0-QVL?
All BZX8450-C2V0-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C2V0-QVL, 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-C2V0-QVL part is unused and in its original packaging.
Return procedure for BZX8450-C2V0-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C2V0-QVL Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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