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Vishay General Semiconductor - Diodes Division BZX584C27-HG3-08
- Part No.:
- BZX584C27-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX584C27-HG3-08.pdf
- Description:
- DIODE ZENER 27V 200MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:6,150
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Product details
Overview
BZX584C27-HG3-08 from Vishay Semiconductors is a 27 V ±5 % Zener diode in the SOD-523 package, rated for 200 mW power dissipation on FR-4 board, with 2 mA test current, 0.05 μA reverse leakage at 20.3 V, and 25 Ω dynamic resistance at IZT. It serves as a precision voltage reference or overvoltage clamp in space-constrained automotive and industrial sensor signal conditioning circuits.
For engineers reviewing the BZX584C27-HG3-08 datasheet, BZX584C27-HG3-08 pinout, BZX584C27-HG3-08 application, or BZX584C27-HG3-08 equivalent, key selection criteria include AEC-Q101 qualification, ±5 % VZ tolerance, SOD-523 footprint compatibility, thermal resistance of 600 K/W, and low leakage performance below 0.1 μA.
Technical Context
This device operates as a single-element, silicon planar Zener diode optimized for stable voltage regulation under reverse bias. Its 27 V nominal Zener voltage is specified at 2 mA test current, with temperature coefficient of +8 to +10 × 10−4/°C and dynamic resistance ≤80 Ω at IZT.
The BZX584C27-HG3-08 is AEC-Q101 qualified and RoHS-compliant, fabricated in the ultra-small SOD-523 package (1.3 × 0.9 mm) with UL 94 V-0 molding compound and MSL Level 1 moisture sensitivity. Maximum junction temperature is 150 °C, and storage range spans −65 to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.1 V min., 27 V nom., 28.9 V max. at 2 mA - defines clamping threshold with ±5 % tolerance for stable reference design |
| Power Dissipation (Ptot) | 200 mW on FR-4 with recommended footprint - limits continuous power handling in compact PCB layouts |
| Dynamic Resistance (ZZ) | 25 Ω max. at IZT = 2 mA - determines voltage regulation stiffness under varying load current |
| Reverse Leakage (IR) | 0.05 μA max. at VR = 20.3 V - ensures minimal quiescent current in high-impedance bias networks |
| Temperature Coefficient (αVZ) | +8 to +10 × 10−4/°C - indicates positive drift with temperature, critical for thermal stability in automotive environments |
| Junction-to-Ambient RthJA | 600 K/W - defines thermal rise per watt on standard FR-4, guiding derating above 25 °C ambient |
Pinout & Package
SOD-523 package: 1.3 mm × 0.9 mm × 0.7 mm body, cathode marked with band, anode/cathode terminals only - no internal connections beyond two terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower potential node when used in shunt regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; voltage develops across cathode-to-anode during reverse conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| ±5 % Zener voltage tolerance | Enables tighter voltage margin control vs. ±10 % parts, reducing need for post-production trimming |
| SOD-523 footprint | 1.3 × 0.9 mm outline supports miniaturization in wearables, ECUs, and IoT sensor nodes |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking, simplifying SMT assembly logistics |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Cabin Sensors | Industrial Current Loop Transmitters |
|---|---|
Use Scenario: Voltage reference for analog front-end of HVAC temperature sensors in passenger compartment modules. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 27 V rail for op-amp biasing and ADC reference scaling. Use Value: AEC-Q101 qualification ensures operation across −40 to +125 °C ambient, while ±5 % VZ tolerance maintains sensor accuracy within 0.5 % full-scale error. |
Use Scenario: Overvoltage protection and reference stabilization in 4–20 mA loop-powered field transmitters. IC Role / Device Role / Timing Role: Clamping diode across loop supply input to limit transient surges and stabilize reference voltage for DAC output stage. Use Value: 0.05 μA leakage at 20.3 V prevents loading of high-impedance current-sense resistors, preserving loop compliance voltage margin. |
| Medical Wearable Battery Monitoring | Smart Meter Power Supply Supervision |
Use Scenario: Precision battery voltage monitoring in rechargeable Li-ion wearable health monitors. IC Role / Device Role / Timing Role: Zener-based voltage divider element feeding into microcontroller ADC for state-of-charge estimation. Use Value: Low 25 Ω dynamic resistance minimizes measurement error from source impedance mismatch, improving SOC resolution by ≥1.2 %. |
Use Scenario: Undervoltage lockout (UVLO) and brown-out detection in polyphase smart meter auxiliary power supplies. IC Role / Device Role / Timing Role: Reference element in comparator-based reset circuit triggering at 27 V ±5 % to prevent MCU corruption during AC line sag. Use Value: +8 to +10 × 10−4/°C αVZ enables predictable trip-point shift over −25 to +70 °C operating range, avoiding false resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C27-G3-08 | Same electrical specs but commercial grade (non-AEC-Q101) | Lacks automotive qualification; unsuitable for under-hood or safety-critical modules | Select when cost-sensitive industrial or consumer designs do not require AEC-Q101 validation |
| MMBZ5256BS-7-F | 27 V Zener, SOT-323 package, 350 mW Ptot, ±5 %, but higher leakage (1 μA at 22.8 V) | Larger footprint (2.2 × 1.35 mm), higher thermal resistance, less suitable for ultra-dense layouts | Choose where higher power handling is needed and board area permits larger SOT-323 placement |
Compared with BZX584C27-G3-08 and MMBZ5256BS-7-F, the BZX584C27-HG3-08 uniquely combines AEC-Q101 qualification, SOD-523 miniaturization, and sub-0.1 μA leakage-making it optimal for automotive sensor nodes where space, reliability, and low-power integrity are jointly constrained.
Availability
BZX584C27-HG3-08 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial current loop transmitters, and medical wearable battery monitoring requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for BZX584C27-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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, founded in 1962 and headquartered in Malvern, Pennsylvania, with engineering centers worldwide.
The BZX584C-Series belongs to Vishay's small-signal Zener diode product line, designed specifically for space-constrained, high-reliability voltage reference and overvoltage protection in automotive, industrial, and portable electronics.
FAQ
What is the Zener voltage tolerance for BZX584C27-HG3-08?
The BZX584C27-HG3-08 has a Zener voltage tolerance of ±5 %, meaning its nominal 27 V rating falls between 25.1 V and 28.9 V at 2 mA test current. This tolerance is guaranteed per the Vishay datasheet Rev. 1.9 and applies to all units shipped under this ordering code. The BZX584C27-HG3-08 achieves this tight tolerance through laser trimming during final test.
Is BZX584C27-HG3-08 qualified for automotive applications?
Yes, BZX584C27-HG3-08 is AEC-Q101 qualified, as indicated by the "HG3" suffix in its part number. This certification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD per JESD47. The BZX584C27-HG3-08 is approved for use in automotive cabin modules, body control units, and non-safety-critical ADAS subsystems.
What is the maximum power dissipation of BZX584C27-HG3-08 on a standard PCB?
The BZX584C27-HG3-08 is rated for 200 mW power dissipation when mounted on an FR-4 board using Vishay's recommended soldering footprint. With a 5 mm × 5 mm copper pad, its rating increases to 300 mW. Derating is required above 25 °C ambient, based on its 600 K/W junction-to-ambient thermal resistance. The BZX584C27-HG3-08 must not exceed 150 °C junction temperature under any operating condition.
Does BZX584C27-HG3-08 have a defined cathode marking?
Yes, BZX584C27-HG3-08 uses a cathode band marking on the SOD-523 package, located at one end of the rectangular body. The banded end corresponds to the cathode terminal, while the opposite end is the anode. This marking is visible under 20× magnification and aligns with JEDEC standard SOD-523 orientation. The BZX584C27-HG3-08 cathode band matches the polarity convention used across Vishay's Zener diode portfolio.
What is the reverse leakage current specification for BZX584C27-HG3-08?
The BZX584C27-HG3-08 specifies a maximum reverse leakage current of 0.05 μA at VR = 20.3 V (75 % of nominal Zener voltage), measured at 25 °C ambient. This ultra-low leakage supports high-impedance bias networks and precision reference dividers. The BZX584C27-HG3-08 maintains leakage below 1 μA up to 25.1 V, ensuring stable operation near knee voltage.
BZX584C27-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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.9 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
BZX584C27-HG3-08 FAQ
1.How can I place an order for BZX584C27-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX584C27-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 BZX584C27-HG3-08 reliable?
The price and inventory of BZX584C27-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 BZX584C27-HG3-08 is usually 5 days.
3.What payment methods are accepted for BZX584C27-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX584C27-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX584C27-HG3-08?
BZX584C27-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX584C27-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 BZX584C27-HG3-08?
For technical support, including BZX584C27-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX584C27-HG3-08 requirements.
6.How does Aetrix verify that BZX584C27-HG3-08 is sourced from the original manufacturer or authorized distributors?
All BZX584C27-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 BZX584C27-HG3-08 meets industry standards.
7.What is the process for return or replacement of BZX584C27-HG3-08?
All BZX584C27-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with BZX584C27-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 BZX584C27-HG3-08 part is unused and in its original packaging.
Return procedure for BZX584C27-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX584C27-HG3-08 Tags
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