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Nexperia USA Inc. BZX8450-C2V7-QVL
- Part No.:
- BZX8450-C2V7-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C2V7-QVL.pdf
- Description:
- DIODE ZENER 2.7V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,182
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Product details
Overview
BZX8450-C2V7-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 2.7 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-C2V7-Q datasheet, BZX8450-C2V7-Q pinout, BZX8450-C2V7-Q application, or BZX8450-C2V7-Q equivalent, this part is selected for low-power voltage stabilization in battery-powered sensor nodes, automotive ECU reference rails, and low-current analog front-ends where thermal efficiency and AEC-Q101 qualification are critical.
Technical Context
This Zener diode operates with a specified reverse breakdown voltage of 2.565 V to 2.835 V at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and differential resistance ≤600 Ω at IZ = 5 mA. Its low 50 µA test current enables stable regulation under ultra-low bias conditions typical in sleep-mode circuits.
The device integrates an intentionally elevated leakage current (≤1.0 µA at VR = 2.0 V) to improve transient response and reduce high-frequency noise-confirmed in application note AN90031-and is qualified to AEC-Q101 for automotive underhood and cabin applications up to +150 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.565 V to 2.835 V at IZ = 50 µA - ensures tight regulation window for 2.7 V reference rails |
| Tolerance | ±5 % - supports cost-sensitive designs where moderate voltage accuracy suffices |
| Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - enables operation on standard FR4 PCB without heatsinking |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - minimizes conduction loss in series-bias configurations |
| Junction Temperature | −55 °C to +150 °C - validated for extended automotive thermal environments |
| Thermal Resistance Rth(j-a) | 500 K/W - defines derating curve for ambient temperature-dependent power handling |
| Capacitance Cd | 190 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
Pinout & Package
SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, tin-plated leads, compatible with standard reflow and wave soldering footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connects to lower-potential node in reverse-biased Zener configuration; carries forward current during polarity reversal |
| 2 | Not Connected (n.c.) | Internally unconnected terminal - must remain floating; no PCB trace or pad required |
| 3 | Cathode (K) | Connects to higher-potential node; primary current path during Zener breakdown; solder point defines thermal path to PCB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including engine control, lighting, and ADAS modules requiring reliability under thermal cycling and vibration |
| Low 50 µA test current | Enables stable voltage reference in microamp-level standby circuits such as real-time clock backup supplies and IoT sensor sleep modes |
| Optimized leakage profile | Controlled IR ≤1.0 µA at 2.0 V supports faster turn-on and reduced switching noise versus standard Zeners (per AN90031) |
| ±5 % tolerance option | Reduces BOM complexity in non-critical regulation paths while maintaining predictable thermal drift behavior |
| SOT23 footprint compatibility | Allows drop-in replacement in existing 3-pin SMT layouts without redesign; supports automated placement and AOI inspection |
Applications
| Automotive Cabin Sensors | Portable Medical Monitors |
|---|---|
Use Scenario: Voltage reference for analog signal conditioning in seat occupancy, HVAC, or interior lighting sensors. IC Role / Device Role / Timing Role: Provides stable 2.7 V bias to op-amps and ADC input stages in 12 V vehicle electrical systems. Use Value: AEC-Q101 qualification ensures long-term stability across −40 °C to +85 °C cabin temperatures without calibration drift. |
Use Scenario: Low-power voltage reference in wearable ECG or pulse oximeter front-ends powered by coin cells. IC Role / Device Role / Timing Role: Regulates supply to analog sensor interfaces during multi-day battery operation with <10 µA quiescent draw. Use Value: 50 µA test current enables accurate regulation even when system current drops below 100 µA in sleep mode. |
| Industrial PLC Input Modules | Smart Meter Reference Rails |
Use Scenario: Signal level translation and overvoltage clamping for 4–20 mA loop receivers in factory automation controllers. IC Role / Device Role / Timing Role: Acts as shunt regulator and transient suppressor on isolated analog input channels. Use Value: 250 mW power rating accommodates surge events up to 40 W (100 µs), protecting downstream instrumentation amplifiers. |
Use Scenario: Precision voltage reference for metrology-grade ADCs in electricity meters operating on harvested energy. IC Role / Device Role / Timing Role: Supplies stable 2.7 V reference to sigma-delta converters measuring grid voltage/current harmonics. Use Value: −3.5 mV/K temperature coefficient minimizes measurement error across −25 °C to +70 °C field deployment range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C2V7 | Same Zener voltage and SOT23 package but lacks AEC-Q101 qualification and optimized leakage profile | Restricted to commercial-grade consumer or industrial equipment without automotive reliability requirements | Select when AEC-Q101 is not mandated and cost is prioritized over noise performance |
| MMSZ4678T1G | 2.7 V Zener, ±5 %, 500 mW rating, but higher 200 µA test current and no automotive qualification | Higher power handling suits higher-current bias networks but increases quiescent consumption in ultra-low-power designs | Choose only if >250 mW dissipation is required and leakage sensitivity is not critical |
Compared with BZX84-C2V7 and MMSZ4678T1G, the BZX8450-C2V7-Q uniquely combines AEC-Q101 compliance, 50 µA test current, and engineered leakage for noise-sensitive automotive and portable applications-making it irreplaceable where both reliability and low-bias fidelity are mandatory.
Availability
BZX8450-C2V7-Q is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical devices, and industrial PLC input modules requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZX8450-C2V7-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 high-volume, high-reliability discrete and logic devices, serving automotive, industrial, and consumer markets with AEC-Q101-qualified components.
The BZX8450-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for low-current voltage reference and regulation in thermally demanding, safety-conscious applications.
FAQ
What is the maximum reverse voltage before breakdown for BZX8450-C2V7-Q?
The BZX8450-C2V7-Q has a nominal Zener voltage of 2.7 V with a guaranteed range of 2.565 V to 2.835 V at IZ = 50 µA. Breakdown begins within this band; operation above 2.835 V under sustained DC conditions exceeds specification and risks thermal runaway due to its 250 mW power limit.
Can BZX8450-C2V7-Q be used in series with other Zeners for higher reference voltages?
No-this device is not characterized for series operation. Its differential resistance (≤600 Ω) and temperature coefficient (−3.5 mV/K) are specified individually. Series stacking introduces mismatched thermal drift and unpredictable current sharing, violating the datasheet's single-diode operating conditions.
Is the n.c. pin (Pin 2) electrically isolated or internally tied to substrate?
Pin 2 is confirmed as not connected-no internal bond wire or die connection exists. It is fully isolated and must remain unconnected on the PCB. The datasheet explicitly states "n.c." in Table 2 and shows no symbol linkage in the simplified outline graphic.
Does the BZX8450-C2V7-Q meet RoHS and REACH requirements?
Yes-Nexperia confirms full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 for the BZX8450-Q series. Material declarations and substance reports are available via Nexperia's official product portal using the full orderable part number.
BZX8450-C2V7-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):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 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-C2V7-QVL FAQ
1.How can I place an order for BZX8450-C2V7-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C2V7-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-C2V7-QVL reliable?
The price and inventory of BZX8450-C2V7-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-C2V7-QVL is usually 5 days.
3.What payment methods are accepted for BZX8450-C2V7-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C2V7-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C2V7-QVL?
BZX8450-C2V7-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C2V7-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-C2V7-QVL?
For technical support, including BZX8450-C2V7-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C2V7-QVL requirements.
6.How does Aetrix verify that BZX8450-C2V7-QVL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C2V7-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-C2V7-QVL meets industry standards.
7.What is the process for return or replacement of BZX8450-C2V7-QVL?
All BZX8450-C2V7-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C2V7-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-C2V7-QVL part is unused and in its original packaging.
Return procedure for BZX8450-C2V7-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C2V7-QVL Tags
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MM5Z5V1ST1G
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