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Vishay BZD27B8V2P-HE3_A08
- Part No.:
- BZD27B8V2P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B8V2P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,443
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Product details
Overview
BZD27B8V2P-HE3_A08 from Vishay Semiconductors is an AEC-Q101-qualified, unidirectional silicon planar Zener diode in DO-219AB (SMF) package, with nominal Zener voltage 8.2 V ±2 % at 100 mA test current, 150 W peak surge power rating (10/1000 μs), and low dynamic resistance of 1 Ω (typ.) for precise voltage regulation and transient suppression in automotive and industrial power rails.
For engineers reviewing the BZD27B8V2P-HE3_A08 datasheet, BZD27B8V2P-HE3_A08 pinout, BZD27B8V2P-HE3_A08 application, or BZD27B8V2P-HE3_A08 equivalent, this page delivers verified electrical specs, thermal performance data, surge capability, package dimensions, and real-world use context for ESD-hardened, high-reliability overvoltage protection design.
Technical Context
This Zener diode operates as a precision voltage reference and transient voltage suppressor in unidirectional configuration, leveraging silicon planar construction for stable breakdown characteristics across -65 °C to +175 °C operating range. Its 8.2 V nominal Zener voltage is specified at 100 mA with ±2 % tolerance and temperature coefficient of +0.03 to +0.08 %/°C, enabling predictable clamping behavior under thermal stress.
The device supports both voltage regulation and surge protection roles: it delivers 11.8 V clamping voltage at 12.2 A peak pulse current (10/1000 μs), with 150 W non-repetitive peak surge power dissipation and 2300 mW total power rating at lead temperature of 105 °C - all validated per IEC 60-1 and AEC-Q101 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.04 V (min) to 8.36 V (max) at 100 mA - ensures tight regulation window for 8.2 V nominal rail protection |
| Clamping Voltage (VC) | 11.8 V at 12.2 A (10/1000 μs) - defines maximum voltage seen by protected circuit during surge event |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs waveform) - enables robust handling of automotive load-dump and ISO 7637-2 transients |
| Dynamic Resistance (ZZ) | 1 Ω (typ.) at 100 mA - minimizes voltage deviation under varying load current, critical for stable reference accuracy |
| Junction Temperature (Tj) | 175 °C max - supports operation in under-hood automotive environments and high-ambient industrial settings |
| ESD Rating | > 8 kV HBM, > 800 V MM - meets AEC-Q101 requirements for electrostatic robustness in assembly and field use |
| Package | DO-219AB (SMF), 2.7 × 3.5 × 0.8 mm - ultra-low-profile SMD footprint compatible with automated reflow and wave soldering |
Pinout & Package
DO-219AB (SMF) surface-mount package: cathode-marked anode-cathode configuration with 2-terminal unidirectional polarity; 2.7 mm length × 3.5 mm width × 0.8 mm height; MSL level 1, peak reflow temperature 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward bias; connected to lower-potential node in Zener mode | Provides path for forward conduction (VF ≤ 1.2 V @ 0.2 A); referenced to ground or common return in clamp configuration |
| Cathode | Current exit terminal during forward bias; connected to higher-potential node in Zener mode | Terminal where regulated/clamped voltage appears; marked on top surface; connects to protected line (e.g., 12 V rail) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| 150 W surge rating (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a/b load-dump events without degradation in automotive 12 V systems |
| ±2 % VZ tolerance | Reduces need for post-production trimming and enables tighter system-level voltage margining |
| MSL Level 1 moisture sensitivity | Eliminates bake requirement before reflow, supporting standard SMT assembly without process modification |
| Low dynamic resistance (1 Ω typ.) | Maintains < ±0.1 V output variation across 50–150 mA Zener current range for stable reference generation |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Protecting 12 V supply lines in engine control units against load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between battery rail and downstream regulators. Use Value: Clamps voltage to ≤11.8 V at 12.2 A, preventing damage to 16 V-rated LDOs and microcontrollers while meeting ISO 16750-2 requirements. |
Use Scenario: Stabilizing reference voltage for 4–20 mA current-loop transmitters in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision Zener shunt regulator providing 8.2 V reference for DAC output buffering and current-sense amplifier biasing. Use Value: ±2 % VZ tolerance and 1 Ω dynamic resistance ensure reference drift < 0.5 % over temperature, maintaining 0.1 % analog accuracy. |
| On-Board Charger (OBC) Auxiliary Supply | Telecom DC-DC Converter Feedback |
|
Use Scenario: Regulating auxiliary 8.2 V rail powering gate drivers and isolated communication ICs in EV on-board chargers. IC Role / Device Role / Timing Role: Primary shunt regulator in linear post-regulator stage following wide-input buck converter. Use Value: 175 °C max junction temperature and 2300 mW power rating allow continuous operation at full load in sealed, high-temperature OBC enclosures. |
Use Scenario: Providing stable feedback reference for isolated flyback controllers in telecom power supplies. IC Role / Device Role / Timing Role: Secondary-side Zener reference in optocoupler feedback loop, setting output voltage via TL431-like topology. Use Value: Low leakage (<10 μA at 6.8 V) prevents feedback error accumulation; +0.03 to +0.08 %/°C TC enables <1 % total output variation from -40 to +105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | TVS diode (not Zener); 8.0 V standoff, 12.3 V clamping at 10.1 A; 600 W peak power; bidirectional option available | Designed for fast transient suppression only - lacks precision regulation capability and ±2 % VZ tolerance | Select when primary need is high-energy surge absorption rather than stable DC reference; not suitable for shunt regulation |
| BZX84-C8V2 | SOT-23 Zener; 8.2 V ±5 %, 300 mW Ptot, 20 Ω ZZ; commercial grade only, no AEC-Q101 qualification | Limited to low-power signal-level protection; insufficient for automotive load-dump or industrial surge events | Acceptable for cost-sensitive consumer PCBs with ambient < 85 °C and no automotive qualification requirement |
Compared with SMBJ8.0A and BZX84-C8V2, the BZD27B8V2P-HE3_A08 uniquely combines AEC-Q101 qualification, 150 W surge capability, ±2 % voltage tolerance, and 1 Ω dynamic resistance - making it the only choice for high-reliability 8.2 V regulation and clamping in automotive power systems.
Availability
BZD27B8V2P-HE3_A08 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor signal conditioning, on-board charger auxiliary supplies, and telecom DC-DC converter feedback requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for BZD27B8V2P-HE3_A08 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 BZD27B Series targets high-surge, high-temperature voltage regulation and transient suppression in automotive electronics and harsh-environment industrial controls, emphasizing AEC-Q101 compliance and robust packaging.
FAQ
What is the Zener voltage tolerance of the BZD27B8V2P-HE3_A08?
The BZD27B8V2P-HE3_A08 has a Zener voltage tolerance of ±2 % at 100 mA test current, with a specified range of 8.04 V (min) to 8.36 V (max). This tight tolerance is confirmed in the Vishay BZD27B Series datasheet Rev. 2.1 and enables precise voltage regulation without external trimming. The BZD27B8V2P-HE3_A08 maintains this specification across its qualified operating temperature range.
Is the BZD27B8V2P-HE3_A08 suitable for automotive applications?
Yes, the BZD27B8V2P-HE3_A08 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. It meets JESD201 Class 2 whisker testing, supports 175 °C maximum junction temperature, and delivers 150 W surge power handling per ISO 7637-2 Pulse 5. The "HE3" suffix denotes AEC-Q101 qualification, confirming the BZD27B8V2P-HE3_A08's suitability for engine control, body electronics, and ADAS power domains.
What is the clamping voltage of the BZD27B8V2P-HE3_A08 under surge conditions?
The BZD27B8V2P-HE3_A08 exhibits a clamping voltage of 11.8 V at 12.2 A peak pulse current using the 10/1000 μs waveform, as documented in the Vishay BZD27B Series datasheet Section 3, Table "ELECTRICAL CHARACTERISTICS (protection diodes)". This value defines the maximum voltage imposed on protected circuitry during standardized surge events and is a key parameter for validating system-level overvoltage immunity with the BZD27B8V2P-HE3_A08.
Which package does the BZD27B8V2P-HE3_A08 use, and what are its key mechanical features?
The BZD27B8V2P-HE3_A08 uses the DO-219AB (SMF) package: a low-profile surface-mount case measuring 2.7 mm × 3.5 mm × 0.8 mm, with cathode marking and MSL Level 1 rating. It supports peak reflow temperatures up to 260 °C and is compatible with standard wave and reflow soldering processes. The BZD27B8V2P-HE3_A08's SMF package enables high-density PCB layouts while maintaining thermal performance via 30 K/W junction-to-lead resistance.
How does the BZD27B8V2P-HE3_A08 compare to standard Zener diodes like BZX84-C8V2?
The BZD27B8V2P-HE3_A08 offers significantly higher surge capability (150 W vs. ~0.3 W), tighter voltage tolerance (±2 % vs. ±5 %), lower dynamic resistance (1 Ω vs. ~20 Ω), and AEC-Q101 qualification - unlike the commercial-grade BZX84-C8V2 in SOT-23. These differences make the BZD27B8V2P-HE3_A08 appropriate for automotive and industrial power rails, whereas the BZX84-C8V2 suits low-power signal-level applications. Both share the same nominal 8.2 V Zener voltage, but only the BZD27B8V2P-HE3_A08 supports demanding surge and thermal requirements.
BZD27B8V2P-HE3_A08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- DO-219AB
- Series:
- BZD27B, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.8V (Max)
- Voltage - Breakdown (Min):
- 8.04V
- Voltage - Clamping (Max) @ Ipp:
- 11.8V
- Current - Peak Pulse (10/1000µs):
- 12.2A
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
BZD27B8V2P-HE3_A08 FAQ
1.How can I place an order for BZD27B8V2P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B8V2P-HE3_A08 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 BZD27B8V2P-HE3_A08 reliable?
The price and inventory of BZD27B8V2P-HE3_A08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27B8V2P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B8V2P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B8V2P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B8V2P-HE3_A08?
BZD27B8V2P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B8V2P-HE3_A08 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 BZD27B8V2P-HE3_A08?
For technical support, including BZD27B8V2P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B8V2P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B8V2P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B8V2P-HE3_A08 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 BZD27B8V2P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B8V2P-HE3_A08?
All BZD27B8V2P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B8V2P-HE3_A08, 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 BZD27B8V2P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B8V2P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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