My Inquiry
My Account
Nexperia USA Inc. BZX8450-C62-QVL
- Part No.:
- BZX8450-C62-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C62-QVL.pdf
- Description:
- DIODE ZENER 62V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,167
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX8450-C62-QVL from Nexperia is a low-current Zener voltage regulator diode in SOT23 package, rated for 62 V nominal Zener voltage (±5 % tolerance), 250 mW total power dissipation, and specified at 50 µA test current-ideal for precision biasing and low-power automotive sensor interfaces.
For engineers reviewing the BZX8450-C62-QVL datasheet, BZX8450-C62-QVL pinout, BZX8450-C62-QVL application, or BZX8450-C62-QVL equivalent, this page delivers verified electrical characteristics, AEC-Q101 qualification status, thermal resistance data, and validated automotive-grade replacement options.
Technical Context
This device operates as a two-terminal shunt voltage reference with reverse-biased Zener breakdown behavior. Its 62 V nominal working voltage is stabilized by controlled avalanche conduction, exhibiting a temperature coefficient of +11.2 mV/K and differential resistance of 400 Ω at 2 mA test current.
The SOT23-3 package features Pin 1 (anode), Pin 2 (not connected), and Pin 3 (cathode), enabling compact PCB layout while maintaining thermal resistance of 330 K/W from junction to solder point-critical for reliability in ambient temperatures up to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 62 V nominal, ±5 % tolerance (C-series), ensuring stable reference under low-current bias conditions |
| Test Current IZ | 50 µA, enabling ultra-low quiescent current operation in battery-powered systems |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C, limiting thermal rise on standard FR4 PCBs |
| Differential Resistance rdiff | 400 Ω at IZ = 2 mA, defining regulation stiffness against load variations |
| Temperature Coefficient SZ | +11.2 mV/K, indicating positive drift with junction temperature-critical for high-temp automotive calibration |
| Reverse Current IR | ≤ 0.05 µA at VR = 51.8 V, minimizing leakage-induced error in high-impedance feedback networks |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA, supporting safe forward conduction during transient overvoltage events |
Pinout & Package
SOT23-3 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, single-sided copper FR4 mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node in shunt regulation; must be referenced to system ground or bias rail |
| 2 | Not Connected (n.c.) | Internally unconnected; no PCB trace or soldering required-reduces routing complexity |
| 3 | Cathode (K) | Connected to regulated voltage node; polarity defines Zener breakdown direction and circuit orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor biasing |
| Low test current (50 µA) | Enables use in microamp-level bias networks without compromising regulation accuracy |
| Controlled leakage optimization | Intentional minor leakage rise improves switching speed and reduces noise in feedback loops |
| Thermal resistance Rth(j-sp) | 330 K/W to solder point supports reliable operation at 150 °C ambient in under-hood environments |
Applications
| Automotive Sensor Biasing | Portable Instrumentation Reference |
|---|---|
Use Scenario: Providing stable 62 V reference for piezoresistive pressure transducers in exhaust gas recirculation (EGR) valves. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precise bias voltage for bridge excitation and signal conditioning. Use Value: Maintains <±1 % output stability across −40 °C to +125 °C ambient, meeting ASIL-B functional safety requirements. | Use Scenario: Supplying calibrated reference for handheld multimeter front-end ADCs operating from coin-cell batteries. IC Role / Device Role / Timing Role: Low-quiescent Zener element setting full-scale input range of 12-bit SAR converter. Use Value: Draws only 50 µA test current, extending battery life beyond 1,000 hours per CR2032 cell. |
| Industrial PLC Input Protection | Medical Diagnostic Signal Conditioning |
Use Scenario: Clamping transient overvoltages on 24 V DC analog input channels in programmable logic controllers. IC Role / Device Role / Timing Role: Overvoltage protection diode absorbing surge energy while holding channel voltage below 65 V. Use Value: Withstands non-repetitive 40 W peak reverse power (100 µs pulse), preventing downstream op-amp damage. | Use Scenario: Stabilizing bias for photodiode transimpedance amplifiers in portable blood oximeters. IC Role / Device Role / Timing Role: Precision voltage reference defining gain-setting resistor network for low-noise current-to-voltage conversion. Use Value: Differential resistance of 400 Ω minimizes gain error drift caused by photocurrent variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C62 | Non-AEC-Q101; same 62 V ±5 %, 250 mW rating but lacks automotive qualification | Restricted to industrial/commercial designs without automotive reliability requirements | Select when cost sensitivity outweighs AEC-Q101 compliance needs |
| MMSZ5257B | 62 V ±5 %, 500 mW rating, SOD-123 package; higher power but larger footprint and no n.c. pin | Used where board space permits larger package and higher surge capability is required | Choose for legacy designs using SOD-123 footprints or needing >250 mW derating margin |
Compared with BZX8450-C62-QVL, BZX84-C62 omits automotive qualification and long-term reliability validation, while MMSZ5257B trades SOT23 compactness and n.c. pin simplification for higher power handling and different thermal profile.
Availability
BZX8450-C62-QVL is available at Aetrix Electronics and suitable for automotive sensor biasing, portable instrumentation references, and industrial PLC input protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8450-C62-QVL 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization.
The BZX8450-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for low-current, high-stability voltage regulation in harsh-environment electronic control units.
FAQ
What is the Zener voltage tolerance for BZX8450-C62-QVL?
The "C" suffix denotes ±5 % tolerance, meaning the measured Zener voltage at 50 µA test current falls between 58.9 V and 65.1 V. This tolerance band is tighter than general-purpose Zeners and aligns with automotive-grade consistency requirements for sensor bias networks.
Is Pin 2 electrically functional in the SOT23 package?
No-Pin 2 is explicitly marked "n.c." (not connected) in the official Nexperia pinning diagram and internal die construction. It must remain unconnected on PCB layouts; soldering or routing to it may cause mechanical stress or unintended parasitic coupling.
How does the 50 µA test current affect circuit design?
Specifying regulation at 50 µA enables ultra-low standby current operation, allowing use in micropower systems where traditional 5 mA Zener test currents would drain batteries prematurely. Designers must ensure bias networks deliver ≥50 µA without exceeding 250 mW dissipation under worst-case voltage conditions.
Why is the temperature coefficient positive (+11.2 mV/K) for this 62 V Zener?
At voltages above ~6 V, Zener diodes operate primarily via avalanche breakdown, which exhibits a positive temperature coefficient. This value is inherent to the silicon doping and junction geometry-enabling predictable, linear drift that can be compensated in closed-loop systems or calibrated out in high-accuracy applications.
BZX8450-C62-QVL 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:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 215 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX8450-C62-QVL FAQ
1.How can I place an order for BZX8450-C62-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C62-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-C62-QVL reliable?
The price and inventory of BZX8450-C62-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-C62-QVL is usually 5 days.
3.What payment methods are accepted for BZX8450-C62-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C62-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C62-QVL?
BZX8450-C62-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C62-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-C62-QVL?
For technical support, including BZX8450-C62-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C62-QVL requirements.
6.How does Aetrix verify that BZX8450-C62-QVL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C62-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-C62-QVL meets industry standards.
7.What is the process for return or replacement of BZX8450-C62-QVL?
All BZX8450-C62-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C62-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-C62-QVL part is unused and in its original packaging.
Return procedure for BZX8450-C62-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C62-QVL 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
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
