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Vishay General Semiconductor - Diodes Division BZX584C33-HG3-08
- Part No.:
- BZX584C33-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX584C33-HG3-08.pdf
- Description:
- DIODE ZENER 33V 200MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,528
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Product details
Overview
BZX584C33-HG3-08 from Vishay Semiconductors is a 33 V ±5 % Zener diode in the SOD-523 package, rated for 200 mW power dissipation on FR-4 board with recommended footprint, 2 mA test current, and 0.05 μA reverse leakage at 24.8 V. It serves as a precision voltage reference or overvoltage clamp in space-constrained automotive and industrial circuits.
For engineers reviewing the BZX584C33-HG3-08 datasheet, BZX584C33-HG3-08 pinout, BZX584C33-HG3-08 application, or BZX584C33-HG3-08 equivalent, key selection criteria include Zener voltage tolerance (±5 %), AEC-Q101 qualification, thermal resistance (600 K/W), dynamic impedance (35 Ω max at 2 mA), and temperature coefficient (+8 to +10 × 10⁻⁴/°C).
Technical Context
This device operates as a single-element, silicon planar Zener diode optimized for stable voltage regulation under low-current conditions. Its design targets low-leakage clamping and reference functions where tight voltage tolerance and high reliability are required.
The BZX584C33-HG3-08 features AEC-Q101 qualification, RoHS compliance, and MSL Level 1 moisture sensitivity-enabling use in reflow-soldered automotive modules without baking. Its 33 V nominal Zener voltage is specified at 2 mA with ±5 % tolerance and exhibits a positive temperature coefficient of +8 to +10 × 10⁻⁴/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V nominal, 31–35 V range at 2 mA - defines clamping threshold in protection circuits |
| Power Dissipation (Ptot) | 200 mW on FR-4 with recommended footprint - limits continuous energy handling in PCB-mounted designs |
| Dynamic Impedance (ZZ) | 35 Ω max at IZT = 2 mA - determines regulation stiffness under load variation |
| Reverse Leakage (IR) | 0.05 μA max at VR = 24.8 V - ensures minimal standby current in battery-sensitive systems |
| Temperature Coefficient (αVZ) | +8 to +10 × 10⁻⁴/°C - indicates predictable upward drift with temperature, critical for thermal compensation |
| Package | SOD-523 (1.7 × 0.9 × 0.7 mm) - enables placement in <1.0 mm² board area for ultra-dense layouts |
Pinout & Package
SOD-523 surface-mount package: cathode-marked anode-cathode configuration, 2-terminal device with no internal connections beyond the two leads. Dimensions: 1.7 mm length × 0.9 mm width × 0.7 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward bias; reference ground node in Zener operation | Connected to lower-potential side of circuit; establishes polarity for reverse-bias regulation |
| Cathode | Current exit point during forward bias; Zener voltage output node in reverse bias | Marked terminal; connected to higher-potential rail to enable clamping at 33 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47 |
| ±5 % Zener voltage tolerance | Enables tighter system-level voltage margining without external trimming components |
| MSL Level 1 rating | Permits standard reflow soldering without pre-baking, reducing manufacturing complexity |
| UL 94 V-0 molding compound | Ensures flame-retardant behavior in safety-critical enclosures and high-density assemblies |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping transient spikes on LIN bus lines exposed to load dump or inductive switching. IC Role / Device Role / Timing Role: Voltage clamp protecting transceiver IC inputs from >40 V surges. Use Value: Prevents damage to 5 V-tolerant LIN PHY while maintaining signal integrity via low dynamic impedance (35 Ω max). | Use Scenario: Providing stable 33 V reference for 16-bit ADC biasing in pressure sensor front-ends. IC Role / Device Role / Timing Role: Precision shunt reference supplying regulated bias current to op-amp input stage. Use Value: Enables <±0.5 % full-scale error over -40 °C to +125 °C due to tight VZ tolerance and predictable αVZ. |
| Consumer Power Adapter Feedback Loop | Medical Portable Diagnostic Device |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters with optocoupler feedback. IC Role / Device Role / Timing Role: Zener reference setting regulation threshold for TL431-like control loop. Use Value: Delivers stable 33 V reference with <0.05 μA leakage, minimizing standby power loss in energy-efficient adapters. | Use Scenario: Overvoltage protection for lithium-ion battery monitoring ICs in handheld ultrasound units. IC Role / Device Role / Timing Role: Clamp limiting supply rail to 35 V maximum during hot-plug or charger fault events. Use Value: Guarantees fail-safe shutdown before battery management IC damage, supported by AEC-Q101 qualification and 150 °C Tj rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C33-G3-08 | Same electrical specs but commercial-grade (non-AEC-Q101); identical SOD-523 package and marking | Lacks automotive qualification; suitable only for non-automotive industrial or consumer use | Select when AEC-Q101 is not required and cost optimization is prioritized |
| MMBZ5262BS-7-F | 33 V Zener, SOT-323 package (2.2 × 1.35 × 1.1 mm), ±5 % tolerance, 200 mW rating, but not AEC-Q101 qualified | Larger footprint and different thermal resistance (RthJA ≈ 450 K/W); requires layout change | Choose only if SOD-523 assembly capability is unavailable and AEC-Q101 is not mandated |
Compared with BZX584C33-G3-08 and MMBZ5262BS-7-F, the BZX584C33-HG3-08 uniquely combines AEC-Q101 qualification, SOD-523 miniaturization, and guaranteed 33 V ±5 % regulation-making it the sole option for space-limited automotive modules requiring production-grade reliability.
Availability
BZX584C33-HG3-08 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and portable medical diagnostics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX584C33-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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The BZX584C-Series was developed to deliver AEC-Q101-qualified Zener diodes in the smallest standard package (SOD-523) for voltage reference and transient suppression in next-generation ECUs and compact sensor nodes.
FAQ
What is the Zener voltage tolerance for BZX584C33-HG3-08?
The BZX584C33-HG3-08 has a Zener voltage tolerance of ±5 %, meaning its actual breakdown voltage falls between 31 V and 35 V when measured at the specified test current of 2 mA. This tolerance is guaranteed across the full operating temperature range and supports precise voltage clamping without additional calibration in BZX584C33-HG3-08-based designs.
Is BZX584C33-HG3-08 qualified for automotive applications?
Yes, BZX584C33-HG3-08 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS subsystems. The qualification covers stress tests such as high-temperature reverse bias, temperature cycling, and electrostatic discharge-ensuring robustness in harsh vehicle environments for the BZX584C33-HG3-08.
What is the maximum power dissipation of BZX584C33-HG3-08 on a standard FR-4 PCB?
The BZX584C33-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 ambient temperature of 25 °C and accounts for thermal resistance junction-to-ambient of 600 K/W. Exceeding this limit risks exceeding the 150 °C maximum junction temperature of the BZX584C33-HG3-08.
Does BZX584C33-HG3-08 have a specified temperature coefficient?
Yes, the BZX584C33-HG3-08 has a temperature coefficient of Zener voltage (αVZ) ranging from +8 × 10⁻⁴/°C to +10 × 10⁻⁴/°C at 2 mA test current. This positive coefficient means its Zener voltage increases predictably with rising temperature, enabling accurate thermal modeling in BZX584C33-HG3-08-based reference circuits.
What packaging format is used for BZX584C33-HG3-08?
BZX584C33-HG3-08 is supplied in an 8 mm tape-on-7-inch reel containing 8000 units, compatible with standard high-speed pick-and-place equipment. The device uses the SOD-523 plastic package with UL 94 V-0 flammability rating and MSL Level 1 moisture sensitivity-allowing direct placement without baking prior to reflow for the BZX584C33-HG3-08.
BZX584C33-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):
- 33 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 35 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 23.1 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
BZX584C33-HG3-08 FAQ
1.How can I place an order for BZX584C33-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX584C33-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 BZX584C33-HG3-08 reliable?
The price and inventory of BZX584C33-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 BZX584C33-HG3-08 is usually 5 days.
3.What payment methods are accepted for BZX584C33-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX584C33-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX584C33-HG3-08?
BZX584C33-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX584C33-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 BZX584C33-HG3-08?
For technical support, including BZX584C33-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX584C33-HG3-08 requirements.
6.How does Aetrix verify that BZX584C33-HG3-08 is sourced from the original manufacturer or authorized distributors?
All BZX584C33-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 BZX584C33-HG3-08 meets industry standards.
7.What is the process for return or replacement of BZX584C33-HG3-08?
All BZX584C33-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with BZX584C33-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 BZX584C33-HG3-08 part is unused and in its original packaging.
Return procedure for BZX584C33-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX584C33-HG3-08 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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