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Vishay BZD27B11P-HE3_A08
- Part No.:
- BZD27B11P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B11P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,114
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Product details
Overview
BZD27B11P-HE3_A08 from Vishay Semiconductors is an AEC-Q101 qualified, unidirectional silicon planar Zener diode in DO-219AB (SMF) package, with nominal zener voltage 11 V ±2 % at 50 mA test current, 150 W peak surge power rating (10/1000 μs), and 9.1 V clamping voltage at 9.6 A surge current. It serves as a precision voltage reference and transient overvoltage protector in automotive power rail conditioning.
For engineers reviewing the BZD27B11P-HE3_A08 datasheet, BZD27B11P-HE3_A08 pinout, BZD27B11P-HE3_A08 application, or BZD27B11P-HE3_A08 equivalent, key selection criteria include its ±2 % VZ tolerance, AEC-Q101 qualification, 175 °C max junction temperature, and DO-219AB low-profile SMD footprint compatible with automated reflow assembly.
Technical Context
This device operates as a single-element, unidirectional Zener diode optimized for both voltage regulation and transient suppression. Its electrical behavior is defined by tight 11.0 V nominal breakdown (10.78–11.22 V range), low dynamic impedance of 8.2 Ω at 50 mA, and positive temperature coefficient (+0.05 to +0.10 %/°C) ensuring stable performance across automotive temperature ranges.
The BZD27B11P-HE3_A08 delivers 150 W non-repetitive peak surge power under 10/1000 μs waveform per IEC 60-1, with clamping voltage VC = 15.2 V at IRSM = 9.6 A. Its thermal design supports RthJA = 180 K/W on 3 mm × 3 mm Cu pads and RthJL = 30 K/W, enabling robust operation up to TJ = 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.78–11.22 V at IZT = 50 mA; enables precise 11 V reference with ±2 % tolerance for automotive sensor supply rails |
| Clamping Voltage (VC) | 15.2 V at IRSM = 9.6 A (10/1000 μs); limits transients to safe levels for downstream 12 V system ICs |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs); withstands ISO 7637-2 pulse 1, 2a, 3a/b, and load dump surges without failure |
| Dynamic Impedance (ZZ) | 8.2 Ω typical at 50 mA; ensures minimal voltage deviation under varying load currents in regulation mode |
| Temperature Coefficient (αVZ) | +0.05 to +0.10 %/°C; provides predictable, monotonic VZ drift over -65 to +175 °C operating range |
| Package | DO-219AB (SMF); 2.7 × 3.5 × 0.85 mm low-profile SMD outline with MSL level 1 and 260 °C reflow compatibility |
| AEC-Q101 Qualified | Yes; certified for automotive applications including engine control units, body electronics, and ADAS power domains |
Pinout & Package
DO-219AB (SMF) surface-mount package: 2.7 mm length × 3.5 mm width × 0.85 mm height, cathode-banded end, designed for high-density PCB layouts and wave/reflow soldering. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward bias | Connected to lower-potential node (e.g., ground or return path) in protection configuration |
| Cathode | Zener breakdown terminal during reverse bias | Connected to protected line (e.g., 12 V rail); clamps voltage when exceeding VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables accurate voltage referencing without post-production trimming in automotive ECUs |
| 150 W peak surge power (10/1000 μs) | Meets ISO 7637-2 load dump immunity requirements for 12 V systems without external series impedance |
| AEC-Q101 qualification | Validated for automotive under-hood and chassis applications with extended temperature and reliability testing |
| Low-profile DO-219AB package | Reduces board space vs. SMA/SMB while maintaining thermal performance via 30 K/W junction-to-lead resistance |
| ESD robustness | HBM > 8 kV and MM > 800 V ensure handling survivability and system-level ESD immunity in manufacturing and field use |
Applications
| Automotive Power Rail Protection | Industrial Sensor Reference |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against load dump and alternator surges in engine control modules. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between VIN and GND, clamping spikes above 15.2 V. Use Value: Prevents latch-up or damage to 12 V-rated MCUs by limiting transient energy to <150 W with no external series resistor required. | Use Scenario: Providing stable 11 V reference for analog front-end circuits in industrial pressure and temperature sensors. IC Role / Device Role / Timing Role: Precision Zener voltage reference source with ±2 % tolerance and +0.07 %/°C TC for ADC biasing. Use Value: Maintains reference accuracy across -40 to +125 °C ambient without calibration, reducing system BOM cost. |
| Automotive Lighting Driver Protection | Telecom DC-DC Input Clamp |
Use Scenario: Safeguarding LED driver ICs in headlamp modules from reverse battery and jump-start transients. IC Role / Device Role / Timing Role: Reverse-polarity and overvoltage clamp connected across input terminals of buck controller. Use Value: Absorbs 10/1000 μs surges up to 9.6 A without degradation, extending driver lifetime in harsh vehicle environments. | Use Scenario: Clamping input voltage spikes on 12 V telecom power supplies feeding PoE injectors and base station controllers. IC Role / Device Role / Timing Role: Primary overvoltage protection element on DC input stage before primary-side controller. Use Value: Limits input rail excursions to ≤15.2 V during lightning-induced surges, preventing false shutdowns and MOSFET avalanche. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | TVS diode (not Zener-regulated); higher clamping ratio (VC/VBR ≈ 1.45 vs. 1.38), 600 W PPPM, bidirectional option available | Designed for fast transient suppression only; lacks precision regulation capability and ±2 % VZ tolerance | Select when surge energy exceeds 150 W or bidirectional protection is needed; not suitable for reference applications |
| BZX84-C11 | SOT-23 package; 500 mW Ptot, ±5 % VZ, no AEC-Q101 qualification, 100 W PRSM | Intended for low-power consumer electronics; insufficient surge rating and reliability for automotive use | Acceptable only for non-automotive, low-energy regulation where footprint and cost outweigh performance needs |
Compared with SMBJ11A and BZX84-C11, the BZD27B11P-HE3_A08 uniquely combines AEC-Q101 qualification, ±2 % regulation tolerance, and 150 W surge capability in a low-profile DO-219AB package-making it the only choice for automotive-grade dual-role (regulation + protection) applications requiring long-term stability and high-reliability validation.
Availability
BZD27B11P-HE3_A08 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor signal conditioning, and telecom DC-DC input protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for BZD27B11P-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 automotive-grade Zener regulation and transient suppression, engineered to meet stringent AEC-Q101 stress tests and ISO 7637-2 surge immunity requirements in harsh environments.
FAQ
What is the exact zener voltage tolerance and test condition for BZD27B11P-HE3_A08?
The BZD27B11P-HE3_A08 has a zener voltage range of 10.78 V to 11.22 V (±2 %) measured at a test current IZT of 50 mA and ambient temperature 25 °C. This tolerance is guaranteed per the Vishay BZD27B Series datasheet Rev. 2.1 and applies specifically to the BZD27B11P-HE3_A08 variant with HE3 AEC-Q101 qualification.
Does BZD27B11P-HE3_A08 support reflow soldering, and what is its moisture sensitivity level?
Yes, BZD27B11P-HE3_A08 is fully compatible with lead-free reflow soldering up to a peak temperature of 260 °C and is rated MSL level 1 per J-STD-020. No baking or dry-pack handling is required prior to assembly, simplifying manufacturing for high-volume automotive PCB production.
What is the maximum clamping voltage of BZD27B11P-HE3_A08 under surge conditions?
The BZD27B11P-HE3_A08 exhibits a maximum clamping voltage VC of 15.2 V at a peak surge current IRSM of 9.6 A under the standardized 10/1000 μs waveform. This value is specified in the "Electrical Characteristics" table for protection-mode operation and defines the upper voltage limit imposed on protected circuits during transients.
Is BZD27B11P-HE3_A08 qualified to AEC-Q101, and what does that mean for automotive use?
Yes, BZD27B11P-HE3_A08 carries the HE3 suffix indicating full AEC-Q101 qualification. This certification validates its reliability for automotive applications-including extended temperature cycling (-65 to +175 °C), high-acceleration mechanical shock, and humidity testing-ensuring suitability for under-hood and safety-critical power domains.
How does the thermal performance of BZD27B11P-HE3_A08 compare to standard SOD-123 devices?
BZD27B11P-HE3_A08 uses the DO-219AB (SMF) package with RthJA = 180 K/W on 3 mm × 3 mm Cu pads-comparable to SOD-123F but with superior surge robustness due to larger die and optimized metallization. Its RthJL = 30 K/W enables more efficient heat transfer to the PCB pad than typical SOD-123 variants, supporting higher continuous power dissipation at elevated ambient temperatures.
BZD27B11P-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):
- 9.1V (Max)
- Voltage - Breakdown (Min):
- 10.78V
- Voltage - Clamping (Max) @ Ipp:
- 15.2V
- Current - Peak Pulse (10/1000µs):
- 9.6A
- 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)
BZD27B11P-HE3_A08 FAQ
1.How can I place an order for BZD27B11P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B11P-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 BZD27B11P-HE3_A08 reliable?
The price and inventory of BZD27B11P-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 BZD27B11P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B11P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B11P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B11P-HE3_A08?
BZD27B11P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B11P-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 BZD27B11P-HE3_A08?
For technical support, including BZD27B11P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B11P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B11P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B11P-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 BZD27B11P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B11P-HE3_A08?
All BZD27B11P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B11P-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 BZD27B11P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B11P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B11P-HE3_A08 Tags
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