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Nexperia USA Inc. BZX8450-C6V2-QR
- Part No.:
- BZX8450-C6V2-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C6V2-QR.pdf
- Description:
- DIODE ZENER 6.2V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,890
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Product details
Overview
BZX8450-C6V2-QR from Nexperia is a low-current Zener voltage regulator diode in SOT23 package, providing 6.2 V nominal regulation at 50 µA test current, with ±5 % tolerance, 160 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive power rail stabilization.
For engineers reviewing the BZX8450-C6V2-QR datasheet, BZX8450-C6V2-QR pinout, BZX8450-C6V2-QR application, or BZX8450-C6V2-QR equivalent, this page delivers verified electrical characteristics, thermal behavior, automotive-grade reliability data, and real-world use context for low-bias voltage reference design.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output by conducting reverse current above its 6.2 V breakdown threshold. Its specified 50 µA test current enables ultra-low quiescent operation in battery-powered sensor nodes and microcontroller reset circuits.
The BZX8450-C6V2-QR exhibits a positive temperature coefficient of +0.4 mV/K and 110 pF junction capacitance at 0 V, supporting noise-sensitive analog front-ends while meeting automotive ambient temperature range (−55 °C to +150 °C) and junction temperature limits (150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.2 V at IZ = 50 µA - defines precise regulation point for low-power bias networks |
| Tolerance | ±5 % - supports cost-optimized designs where tight voltage accuracy is not required |
| Differential Resistance | 160 Ω at IZ = 5 mA - determines load regulation error under varying current draw |
| Forward Voltage | ≤ 0.9 V at IF = 10 mA - ensures minimal drop when used in polarity protection or clamping roles |
| Power Dissipation | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Thermal Resistance | 500 K/W (junction-to-ambient) - informs derating requirements for high-temperature environments |
| Leakage Current | ≤ 1.0 µA at VR = 5 V - guarantees low standby current in always-on monitoring circuits |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), qualified per AEC-Q101 for automotive use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node; reverse-biased during regulation |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no PCB trace or soldering |
| 3 | Cathode (K) | Connected to regulated voltage rail; carries full Zener current during operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in µA-level battery-powered systems without compromising regulation stability |
| Optimized leakage profile | Intentional minor rise in leakage vs. B-series - improves switching speed and reduces noise in signal conditioning paths |
| AEC-Q101 qualification | Qualified for automotive applications - ensures reliability across temperature cycling, humidity, and mechanical shock profiles |
| Small-footprint packaging | SOT23 footprint compatible with high-density PCB layouts - reduces board area versus DO-35 or SOD-123 alternatives |
Applications
| Automotive Cabin Sensor Node | Industrial IoT Edge Controller |
|---|---|
Use Scenario: Low-power temperature/humidity sensor module powered by coin cell or energy harvester. IC Role / Device Role / Timing Role: Zener shunt regulator establishing stable 6.2 V reference for ADC and MCU VREF input. Use Value: Enables <1 µA standby current while maintaining ±5 % reference accuracy over −40 °C to +125 °C ambient. |
Use Scenario: Remote programmable logic controller (PLC) I/O module with isolated 3.3 V supply derived from 12 V bus. IC Role / Device Role / Timing Role: Pre-regulator for LDO input stage, absorbing transient surges and stabilizing input before linear regulation. Use Value: Limits input ripple to <50 mVpp at 100 kHz using 110 pF junction capacitance and 160 Ω dynamic impedance. |
| Medical Wearable Battery Monitor | Consumer Smart Home Hub Power Sequencing |
Use Scenario: Disposable ECG patch with integrated Li-SOCl2 primary cell and fuel gauge IC. IC Role / Device Role / Timing Role: Voltage clamp protecting fuel gauge analog inputs from overvoltage during battery insertion or hot-swap events. Use Value: Withstands 40 W non-repetitive surge (100 µs pulse) while limiting clamped voltage to ≤6.8 V at 5 mA peak current. |
Use Scenario: Multi-rail smart speaker SoC requiring controlled 5 V → 3.3 V → 1.8 V power-up sequence. IC Role / Device Role / Timing Role: Reset supervisor reference element generating accurate POR threshold for sequencer enable signal. Use Value: Delivers ±0.31 V tolerance window (6.2 V ±5 %) with <0.4 mV/K drift - ensuring deterministic startup timing across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2,215 | Same 6.2 V/±5 % spec but non-AEC-Q101; 200 mW Ptot; no intentional leakage optimization | Limited to commercial-grade consumer electronics; unsuitable for under-hood automotive use | Select when AEC-Q101 compliance is unnecessary and cost is primary driver |
| MMSZ5234B-TP | 6.2 V/±5 %, SOD-123 package, 500 mW rating, higher rdiff (200 Ω), no automotive qualification | Higher power handling but larger footprint; lacks optimized leakage/noise behavior | Choose only if board space allows SOD-123 and >250 mW dissipation is required |
Compared with BZX84-C6V2,215 and MMSZ5234B-TP, the BZX8450-C6V2-QR uniquely combines AEC-Q101 qualification, SOT23 miniaturization, and intentional leakage tuning for fast-switching low-noise regulation-making it the sole fit for space-constrained automotive sensor nodes requiring both reliability and signal integrity.
Availability
BZX8450-C6V2-QR is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial IoT edge controllers, and medical wearable power management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8450-C6V2-QR 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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
The BZX8450-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current voltage reference and regulation in harsh-environment automotive subsystems where size, stability, and qualification rigor are critical.
FAQ
What is the maximum continuous reverse power dissipation for BZX8450-C6V2-QR at 70 °C ambient?
At 70 °C ambient, the device's total power dissipation must be derated from 250 mW using its 500 K/W junction-to-ambient thermal resistance. The maximum allowable is 250 mW × (1 − (70 − 25)/500) = 205 mW. This ensures junction temperature remains below 150 °C under steady-state conditions on standard FR4 PCB.
Does BZX8450-C6V2-QR support bidirectional ESD protection?
No. BZX8450-C6V2-QR is a unidirectional Zener diode configured for reverse-biased regulation only. Its anode is not rated for forward conduction beyond 200 mA, and it lacks symmetric clamping capability. For bidirectional ESD protection, dedicated TVS diodes such as PESD5V0S1BA should be used instead.
How does the "C" suffix in BZX8450-C6V2-QR affect its performance versus "B" variants?
The "C" suffix denotes ±5 % tolerance and an intentionally elevated leakage current profile optimized for faster switching and lower noise-distinct from the "B" series' ±2 % tolerance and tighter leakage control. This makes the C variant preferable in dynamic bias networks where response time and spectral purity outweigh absolute voltage precision.
Can BZX8450-C6V2-QR be used in parallel for higher current capability?
No. Zener diodes exhibit negative temperature coefficients and manufacturing spread in VZ, causing current hogging when paralleled. Even matched units will thermally diverge, risking thermal runaway. For higher current regulation, use a single higher-rated Zener or implement active regulation with a transistor-based shunt amplifier.
BZX8450-C6V2-QR 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):
- 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:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX8450-C6V2-QR FAQ
1.How can I place an order for BZX8450-C6V2-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C6V2-QR 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-C6V2-QR reliable?
The price and inventory of BZX8450-C6V2-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8450-C6V2-QR is usually 5 days.
3.What payment methods are accepted for BZX8450-C6V2-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C6V2-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C6V2-QR?
BZX8450-C6V2-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C6V2-QR 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-C6V2-QR?
For technical support, including BZX8450-C6V2-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C6V2-QR requirements.
6.How does Aetrix verify that BZX8450-C6V2-QR is sourced from the original manufacturer or authorized distributors?
All BZX8450-C6V2-QR 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-C6V2-QR meets industry standards.
7.What is the process for return or replacement of BZX8450-C6V2-QR?
All BZX8450-C6V2-QR units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C6V2-QR, 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-C6V2-QR part is unused and in its original packaging.
Return procedure for BZX8450-C6V2-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C6V2-QR Tags
-
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
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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