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Nexperia USA Inc. BZX8450-C22-QVL
- Part No.:
- BZX8450-C22-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C22-QVL.pdf
- Description:
- DIODE ZENER 22V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,023
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Product details
Overview
BZX8450-C22-QVL 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 a nominal 22 V regulation at 50 µA test current, with ±5 % tolerance, 250 mW total power dissipation, and qualified AEC-Q101 reliability for under-hood applications.
For engineers reviewing the BZX8450-C22-QVL datasheet, BZX8450-C22-QVL pinout, BZX8450-C22-QVL application, or BZX8450-C22-QVL equivalent, this page provides verified electrical parameters, thermal behavior, automotive qualification status, and real-world use context for low-power voltage stabilization in constrained PCB layouts.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable reverse-biased voltage across its cathode-anode terminals when reverse current exceeds knee threshold. Its 22 V nominal Zener voltage is specified at IZ = 50 µA, enabling ultra-low standby bias in battery-sensitive systems.
Differential resistance is 250 Ω max at IZ = 5 mA, and temperature coefficient is +0.05 mV/K - indicating minimal drift over ambient range (−55 °C to +150 °C). The intentional minor leakage rise improves switching speed and noise performance per AN90031.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 20.9 V to 23.1 V at IZ = 50 µA - defines tight regulation window for 22 V reference circuits |
| Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - limits continuous operation in unheatsinked SOT23 footprints |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - ensures low loss during forward conduction in protection or clamping roles |
| Differential Resistance rdiff | ≤ 250 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current IR | ≤ 0.05 µA at VR = 17.6 V - confirms low leakage below breakdown, critical for battery drain control |
| Junction Temperature Tj | −55 °C to +150 °C - supports operation in automotive engine compartments and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive discrete semiconductor stress testing including HTGB, HTRB, and ESD |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), optimized for automated assembly and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connected to lower-potential node in shunt regulation configuration |
| 2 | Not Connected (n.c.) | Internally isolated terminal - must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 3 | Cathode (K) | Regulated voltage output node; connects to supply rail being stabilized in reverse-bias operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at IZ = 50 µA - enables stable regulation in micro-power sensor bias and IoT wake-up circuits |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients and broadband noise in feedback paths |
| AEC-Q101 qualification | Qualified for automotive Grade 1 (−40 °C to +125 °C ambient) and extended junction range - supports under-hood ECUs |
| ±5 % voltage tolerance | Tighter than standard Zeners - reduces need for post-production trimming in cost-sensitive consumer and industrial designs |
| SOT23 footprint compatibility | Standard 3-pin SOT23 land pattern - allows drop-in replacement of legacy regulators without layout redesign |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 22 V reference for LIN bus transceiver bias and microcontroller reset circuitry in door module ECUs. IC Role / Device Role / Timing Role: Shunt voltage reference regulating local 22 V rail derived from vehicle battery via LDO pre-regulator. Use Value: AEC-Q101 qualification ensures long-term stability under thermal cycling and vibration; low 50 µA test current minimizes quiescent drain during sleep mode. |
Use Scenario: Biasing precision op-amp input stages in 4–20 mA loop-powered pressure transmitters operating from 24 V supply. IC Role / Device Role / Timing Role: Zener-based reference generator setting gain and offset calibration points in analog front-end. Use Value: 250 Ω differential resistance enables <1 % load regulation error across 100 µA–1 mA bias range; ±5 % tolerance eliminates need for external trimming resistors. |
| Portable Medical Monitoring Device | Smart Home Smoke Detector Power Management |
Use Scenario: Supplying regulated 22 V to piezoelectric buzzer driver IC in battery-operated pulse oximeter with 10-year shelf life requirement. IC Role / Device Role / Timing Role: Low-leakage voltage clamp stabilizing boost converter feedback node during standby. Use Value: ≤0.05 µA reverse current at 17.6 V prevents measurable battery depletion over 10 years; SOT23 size fits compact wearable form factor. |
Use Scenario: Generating stable reference for CO sensor heater control circuit in lithium-thionyl chloride–powered smoke alarms. IC Role / Device Role / Timing Role: Precision shunt regulator defining heater current setpoint in constant-current source topology. Use Value: +0.05 mV/K temperature coefficient ensures <±0.1 V drift over −20 °C to +60 °C operating range; AEC-Q101 robustness extends field lifetime beyond 15 years. |
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-C22 | Non-AEC-Q101; same VZ range but ±5 % tolerance only at IZ = 5 mA (not 50 µA); higher rdiff (300 Ω) | Lacks automotive qualification; unsuitable for safety-critical or extended-temperature deployments | Select only for cost-sensitive consumer products where AEC-Q101 and low-current spec are not required |
| MMSZ5247B | 22 V nominal, ±5 % at IZ = 20 mA; 500 mW Ptot; no AEC-Q101; SOD-123 package (larger footprint) | Higher power rating but incompatible with space-constrained SOT23 layouts; no low-IZ optimization | Choose when higher power handling is needed and board area permits SOD-123; avoid for battery-critical or automotive use |
Compared with BZX84-C22 and MMSZ5247B, the BZX8450-C22-QVL uniquely combines AEC-Q101 qualification, 50 µA test current specification, and SOT23 footprint - making it the only option for automotive-grade, ultra-low-quiescent, space-constrained 22 V reference design.
Availability
BZX8450-C22-QVL is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, portable medical monitoring devices, and smart home smoke detector power management requiring stable component supply across extended temperature ranges and long lifecycle commitments.
Supply support for BZX8450-C22-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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components and advanced packaging.
The BZX8450-Q series belongs to Nexperia's automotive-grade Zener regulator product line, engineered specifically for low-current, high-stability voltage reference in harsh-environment electronics where AEC-Q101 compliance and micro-power operation are mandatory.
FAQ
What is the maximum reverse voltage before breakdown for BZX8450-C22-QVL?
The device exhibits sharp Zener breakdown at 20.9 V minimum and 23.1 V maximum when tested at 50 µA. Below 20.9 V, reverse current remains ≤0.05 µA - confirming reliable non-conducting behavior in pre-breakdown bias conditions used for voltage sensing and clamping.
Can BZX8450-C22-QVL be used in series or parallel configurations?
Series connection is valid for higher-voltage references (e.g., two units for ~44 V), provided matching VZ tolerances and thermal coupling are managed. Parallel use is not recommended due to mismatched rdiff causing current hogging; single-device operation is preferred for stability and predictability.
Does the 'QVL' suffix indicate tape-and-reel packaging?
Yes - 'QVL' denotes 3,000-unit tape-and-reel packaging per IEC 60286-3 standard, with SOT23-compatible carrier tape pitch of 4 mm and embossed pocket depth optimized for high-speed pick-and-place placement in automotive manufacturing lines.
How does the 'C' in BZX8450-C22-QVL differ from 'B' variants?
The 'C' denotes ±5 % voltage tolerance at IZ = 50 µA, whereas 'B' variants offer tighter ±2 % tolerance. For BZX8450-C22-QVL, this means 20.9–23.1 V regulation band - balancing cost efficiency and performance for applications where absolute precision is secondary to low-leakage stability.
BZX8450-C22-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:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.7 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-C22-QVL FAQ
1.How can I place an order for BZX8450-C22-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C22-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-C22-QVL reliable?
The price and inventory of BZX8450-C22-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-C22-QVL is usually 5 days.
3.What payment methods are accepted for BZX8450-C22-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C22-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C22-QVL?
BZX8450-C22-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C22-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-C22-QVL?
For technical support, including BZX8450-C22-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C22-QVL requirements.
6.How does Aetrix verify that BZX8450-C22-QVL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C22-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-C22-QVL meets industry standards.
7.What is the process for return or replacement of BZX8450-C22-QVL?
All BZX8450-C22-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C22-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-C22-QVL part is unused and in its original packaging.
Return procedure for BZX8450-C22-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C22-QVL Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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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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