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Vishay General Semiconductor - Diodes Division BZX584C22-HG3-08
- Part No.:
- BZX584C22-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX584C22-HG3-08.pdf
- Description:
- DIODE ZENER 22V 200MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:3,698
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Product details
Overview
BZX584C22-HG3-08 from Vishay Semiconductors is a surface-mount, AEC-Q101-qualified Zener diode in SOD-523 package with nominal Zener voltage 22 V, ±5 % tolerance, 5 mA test current, 200 mW power dissipation on FR-4 board, and dynamic resistance ≤55 Ω at IZT. It provides precision voltage regulation in space-constrained automotive and industrial power supply rails.
For engineers reviewing the BZX584C22-HG3-08 datasheet, BZX584C22-HG3-08 pinout, BZX584C22-HG3-08 application, or BZX584C22-HG3-08 equivalent, key selection criteria include Zener voltage stability under pulse load, low leakage (<0.05 µA at 17.6 V), thermal resistance (600 K/W), AEC-Q101 qualification, and SOD-523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a single-element, silicon planar Zener diode optimized for low-current voltage reference and overvoltage protection. Its 22 V nominal breakdown is specified at 5 mA (IZT), with dynamic resistance of 20 Ω typical and ≤55 Ω max, and temperature coefficient of +8 to +10 × 10−4/°C - indicating positive drift above 6 V.
The BZX584C22-HG3-08 uses a monolithic junction structure with metallization designed for stable reverse-bias operation. It is rated for 150 °C maximum junction temperature, MSL level 1 handling, and peak reflow up to 260 °C - confirming suitability for automated SMT assembly in automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.8 V min / 22 V nom / 23.3 V max at 5 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (Ptot) | 200 mW on FR-4 with recommended footprint - sets maximum continuous DC or average pulsed power without derating |
| Dynamic Resistance (ZZ) | ≤55 Ω at 5 mA - determines regulation stiffness and output impedance in feedback or clamp applications |
| Reverse Leakage (IR) | ≤0.05 µA at 17.6 V - ensures minimal quiescent current draw in high-impedance bias networks |
| Temperature Coefficient (αVZ) | +8 to +10 × 10−4/°C - quantifies voltage drift per degree Celsius above 25 °C ambient |
| Junction-to-Ambient RthJA | 600 K/W on FR-4 with recommended footprint - governs thermal rise under steady-state power dissipation |
Pinout & Package
SOD-523 package: ultra-compact 1.3 mm × 0.9 mm × 0.7 mm surface-mount plastic case with cathode band marking; weight 1.32 mg; UL 94 V-0 molding compound; MSL level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node in reverse-bias regulation; forms reference return path |
| Cathode | Zener breakdown terminal / voltage clamp input | Connected to higher-potential rail; clamps voltage to VZ when reverse-biased beyond breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements - enables use in engine control, body electronics, and ADAS power domains |
| ±5 % Zener voltage tolerance | Tighter initial accuracy than standard 10 % Zeners - reduces need for post-production trimming in voltage reference circuits |
| SOD-523 footprint | 0.9 mm × 1.3 mm outline - supports miniaturization in wearables, sensor modules, and compact ECUs |
| Low leakage current | ≤0.05 µA at 80 % VZ - preserves battery life and signal integrity in high-impedance monitoring paths |
Applications
| Automotive Power Rail Clamp | Industrial Sensor Reference |
|---|---|
Use Scenario: Clamping transient spikes on 24 V CAN bus power lines in vehicle body control modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to limit voltage excursions to ≤23.3 V. Use Value: Prevents damage to downstream 24 V-rated transceivers and microcontrollers during load-dump events. | Use Scenario: Providing stable 22 V reference for analog front-end calibration in factory-floor pressure sensors. IC Role / Device Role / Timing Role: Precision shunt reference supplying bias current to op-amp feedback network. Use Value: Enables <±0.5 % full-scale accuracy over −40 to +125 °C due to predictable αVZ and low dynamic resistance. |
| Portable Medical Device Overvoltage Protection | Smart Meter Voltage Supervisor |
Use Scenario: Protecting lithium-ion battery management IC inputs from accidental 28 V adapter surges in handheld diagnostics tools. IC Role / Device Role / Timing Role: Standby-mode Zener clamp activated only during overvoltage fault condition. Use Value: Delivers fail-safe shutdown without consuming >0.1 µA standby current - extends battery runtime by >15 % vs. alternative TVS diodes. | Use Scenario: Monitoring 22 V auxiliary supply in utility smart meters to trigger brownout reset before EEPROM corruption. IC Role / Device Role / Timing Role: Shunt regulator feeding comparator input with temperature-stable threshold voltage. Use Value: Achieves ±1.2 % trip-point accuracy across 10-year field deployment due to AEC-Q101 reliability and low long-term drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C22-G3-08 | Same electrical specs but commercial-grade (non-AEC-Q101); identical SOD-523 package and marking | Approved for industrial/commercial use only; not qualified for automotive temperature cycling or HTRB stress | Select when AEC-Q101 compliance is not required and cost sensitivity outweighs qualification needs |
| MMSZ5247BT1G | 22 V Zener in SOD-123; 500 mW Ptot; ±5 % tolerance; 100 Ω ZZ; no AEC-Q101 rating | Larger footprint (3.5 mm × 1.6 mm) limits high-density layout; higher power enables higher surge handling | Choose when higher power margin is critical and board area permits larger package |
Compared with BZX584C22-HG3-08, the G3 variant trades automotive qualification for lower unit cost in non-automotive systems, while MMSZ5247BT1G offers greater power headroom at the expense of size and qualification - making BZX584C22-HG3-08 optimal for space-constrained AEC-Q101 designs requiring precise 22 V regulation.
Availability
BZX584C22-HG3-08 is available at Aetrix Electronics and suitable for automotive power rail clamping, industrial sensor reference circuits, portable medical device protection, and smart meter voltage supervision requiring stable component supply and AEC-Q101 traceability.
Supply support for BZX584C22-HG3-08 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and performance in harsh environments.
The BZX584C-Series targets space-constrained, high-reliability applications including automotive electronics, industrial automation, and portable instrumentation - delivering precision Zener regulation in the smallest standardized SMD package.
FAQ
What is the Zener voltage tolerance for BZX584C22-HG3-08?
The BZX584C22-HG3-08 has a Zener voltage tolerance of ±5 %, meaning its actual breakdown voltage falls between 20.8 V and 23.3 V when tested at 5 mA. This tighter tolerance enables more accurate voltage references without external trimming and is maintained across the full operating temperature range of −65 °C to +150 °C.
Is BZX584C22-HG3-08 qualified for automotive applications?
Yes, BZX584C22-HG3-08 is AEC-Q101 qualified, confirming it meets stress test requirements for automotive electronics including temperature cycling, high-temperature reverse bias, and accelerated life testing. The "HG3" suffix explicitly denotes this qualification, distinguishing it from the commercial-grade "G3" variant.
What is the maximum power dissipation of BZX584C22-HG3-08 on a standard FR-4 PCB?
The BZX584C22-HG3-08 is rated for 200 mW maximum power dissipation when mounted on an FR-4 board using Vishay's recommended soldering footprint. This value assumes natural convection cooling and accounts for thermal resistance of 600 K/W junction-to-ambient - exceeding this limit risks exceeding the 150 °C maximum junction temperature.
How does the temperature coefficient affect BZX584C22-HG3-08 performance?
The BZX584C22-HG3-08 has a temperature coefficient of +8 to +10 × 10−4/°C, meaning its Zener voltage increases by approximately 17.6 mV to 22 mV per °C rise above 25 °C. This positive drift is typical for Zeners above 6 V and must be factored into reference stability calculations for applications operating across wide temperature ranges.
What packaging format is used for BZX584C22-HG3-08?
BZX584C22-HG3-08 is supplied in 8 mm tape on 7-inch reels containing 8000 units per reel. The SOD-523 package features a cathode band marking and complies with RoHS Directive 2011/65/EU. Moisture sensitivity level is MSL level 1, permitting unlimited floor life before reflow soldering.
BZX584C22-HG3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- BZX584C
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15.4 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZX584C22-HG3-08 FAQ
1.How can I place an order for BZX584C22-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX584C22-HG3-08 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 BZX584C22-HG3-08 reliable?
The price and inventory of BZX584C22-HG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX584C22-HG3-08 is usually 5 days.
3.What payment methods are accepted for BZX584C22-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX584C22-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX584C22-HG3-08?
BZX584C22-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX584C22-HG3-08 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 BZX584C22-HG3-08?
For technical support, including BZX584C22-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX584C22-HG3-08 requirements.
6.How does Aetrix verify that BZX584C22-HG3-08 is sourced from the original manufacturer or authorized distributors?
All BZX584C22-HG3-08 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 BZX584C22-HG3-08 meets industry standards.
7.What is the process for return or replacement of BZX584C22-HG3-08?
All BZX584C22-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with BZX584C22-HG3-08, 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 BZX584C22-HG3-08 part is unused and in its original packaging.
Return procedure for BZX584C22-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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