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Vishay BZD27B4V7P-HE3_A08
- Part No.:
- BZD27B4V7P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B4V7P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,708
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Product details
Overview
BZD27B4V7P-HE3_A08 from Vishay Semiconductors is a surface-mount silicon planar Zener diode with nominal breakdown voltage of 4.7 V ±2 %, 100 mA test current, and 150 W non-repetitive peak surge power rating (10/1000 μs), designed for overvoltage protection in automotive power rails and industrial sensor interfaces.
For engineers reviewing the BZD27B4V7P-HE3_A08 datasheet, BZD27B4V7P-HE3_A08 pinout, BZD27B4V7P-HE3_A08 application, or BZD27B4V7P-HE3_A08 equivalent, key selection criteria include its AEC-Q101 qualification, low dynamic resistance (3 Ω typ. at 100 mA), temperature coefficient (–0.1 %/°C to 0 %/°C), and DO-219AB (SMF) package compatibility.
Technical Context
This unidirectional Zener diode operates as a voltage reference and transient suppressor in clamping configurations. It delivers stable regulation under DC bias and robust surge handling per IEC 60-1 (10/1000 μs waveform), with clamping voltage VC = 10.9 V at IRSM = 13.3 A.
Its thermal design supports junction temperatures up to 175 °C, enabled by RthJA = 180 K/W on 3 mm × 3 mm Cu pads and RthJL = 30 K/W, making it suitable for high-reliability automotive ECUs where ambient temperatures exceed 105 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.61 V min. to 4.79 V max. at IZT = 100 mA - ensures precise 4.7 V regulation tolerance for 5 V rail monitoring |
| Dynamic Resistance (ZZ) | 3 Ω typ. at IZT = 100 mA - minimizes output voltage deviation during load transients |
| Clamping Voltage (VC) | 10.9 V at IRSM = 13.3 A (10/1000 μs) - limits surge-induced stress on downstream 12 V logic ICs |
| Surge Power Rating (PRSM) | 150 W (10/1000 μs) - withstands ISO 7637-2 Pulse 1 & 2a transients in automotive 12 V systems |
| Temperature Coefficient (αVZ) | –0.1 %/°C to 0 %/°C - maintains voltage stability across –65 °C to +175 °C operating range |
| Leakage Current (IR) | 10 μA max. at VR = 3.8 V - ensures low standby power loss in always-on circuits |
| Package | DO-219AB (SMF) - 2.7 mm × 1.9 mm footprint compatible with high-density PCB layouts |
Pinout & Package
DO-219AB (SMF) package: low-profile surface-mount case with cathode marking on top surface; dimensions 2.7 mm × 1.9 mm × 0.85 mm; MSL level 1, reflow-compatible up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node (e.g., ground or return path) in clamping configuration |
| Cathode | Zener breakdown terminal | Connected to protected line (e.g., 5 V supply rail); polarity critical for correct surge clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| ±2 % VZ tolerance | Enables tight voltage margining without external trimming in 5 V system protection |
| ESD robustness | HBM > 8 kV / MM > 800 V - survives handling and board-level ESD events pre-deployment |
| Low profile SMF package | 0.85 mm height enables use in space-constrained modules like battery management ICs |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-humidity, high-temperature automotive environments |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Suppressing load dump and jump-start transients on 12 V vehicle power distribution networks. IC Role / Device Role / Timing Role: Unidirectional Zener clamp placed between 12 V rail and ground, conducting only during overvoltage events. Use Value: Limits peak voltage to ≤10.9 V at 13.3 A surge, protecting downstream CAN transceivers and microcontrollers rated for 16 V absolute maximum. | Use Scenario: Stabilizing reference voltage for 4–20 mA loop-powered pressure transmitters in factory automation. IC Role / Device Role / Timing Role: Precision shunt regulator providing 4.7 V reference to op-amp bias circuitry. Use Value: ±2 % VZ tolerance and –0.1 %/°C TC ensure reference drift < ±15 mV over –40 °C to +105 °C, meeting SIL-2 accuracy requirements. |
| Consumer USB-C Port ESD Clamp | Medical Infusion Pump Power Monitoring |
Use Scenario: Secondary-level ESD protection on VBUS line of USB-C receptacles in portable medical devices. IC Role / Device Role / Timing Role: Fast-response Zener placed after primary TVS, absorbing residual 8 kV HBM energy not diverted upstream. Use Value: Low leakage (10 μA max.) prevents false triggering of USB PD negotiation; DO-219AB footprint fits tight connector keep-out zones. | Use Scenario: Overvoltage detection on 5 V auxiliary supply feeding motor driver ICs in infusion pumps. IC Role / Device Role / Timing Role: Fail-safe monitor diode that triggers shutdown when input exceeds 4.7 V by >10 %. Use Value: Tight 4.61–4.79 V window enables reliable detection of 5.2 V brownout conditions while rejecting normal ripple (±50 mV). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ4.5A | TVS diode (not Zener); 4.5 V standoff, 100 W PPPM, bidirectional | Designed for fast transient suppression (clamping time <1 ns), not precision regulation | Select when surge speed matters more than DC voltage accuracy |
| BZX84-C4V7 | SOT-23 package; ±5 % VZ; 300 mW Ptot; no AEC-Q101 or surge rating | Limited to low-energy consumer applications; unsuitable for automotive transients | Choose only for cost-sensitive, non-automotive 5 V rail stabilization |
Compared with SMBJ4.5A and BZX84-C4V7, BZD27B4V7P-HE3_A08 uniquely combines AEC-Q101 qualification, 150 W surge capability, ±2 % tolerance, and DO-219AB packaging-making it the only option validated for automotive-grade 5 V system protection requiring both precision and ruggedness.
Availability
BZD27B4V7P-HE3_A08 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and medical device power monitoring requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZD27B4V7P-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-stability Zener applications in harsh environments; its design emphasizes AEC-Q101 compliance, low-profile packaging, and precise voltage regulation for next-generation automotive and industrial power systems.
FAQ
What is the Zener voltage tolerance of BZD27B4V7P-HE3_A08?
BZD27B4V7P-HE3_A08 has a Zener voltage tolerance of ±2 %, with a specified range of 4.61 V (min) to 4.79 V (max) at 100 mA test current. This tight tolerance enables accurate voltage clamping and referencing in safety-critical automotive and industrial designs where standard ±5 % Zeners would introduce unacceptable margin error. The value is measured and guaranteed per Vishay's Rev. 2.1 datasheet (Document 85921).
Is BZD27B4V7P-HE3_A08 qualified for automotive applications?
Yes, BZD27B4V7P-HE3_A08 is AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code. It meets rigorous stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock, and is rated for operation from –65 °C to +175 °C. This makes BZD27B4V7P-HE3_A08 suitable for under-hood and transmission-control module applications where reliability under thermal and electrical stress is mandatory.
What package type does BZD27B4V7P-HE3_A08 use?
BZD27B4V7P-HE3_A08 uses the DO-219AB (SMF) package - a low-profile surface-mount case measuring 2.7 mm × 1.9 mm × 0.85 mm. It features a single cathode stripe marking and is compatible with standard SMT reflow profiles (peak 260 °C). This package is distinct from SOD-123 variants and offers superior thermal performance (RthJA = 180 K/W) compared to smaller footprints, supporting higher surge energy dissipation.
What is the maximum clamping voltage of BZD27B4V7P-HE3_A08 during surge events?
The maximum clamping voltage (VC) of BZD27B4V7P-HE3_A08 is 10.9 V at a peak surge current (IRSM) of 13.3 A under the 10/1000 μs waveform per IEC 60-1. This value is measured at TJ = 25 °C and defines the upper voltage limit imposed on protected circuits during standardized automotive transients. It ensures compatibility with 12 V system components rated for ≤16 V absolute maximum ratings.
Does BZD27B4V7P-HE3_A08 have ESD protection capability?
Yes, BZD27B4V7P-HE3_A08 is rated for ESD robustness per AEC-Q101: human body model (HBM) > 8 kV and machine model (MM) > 800 V. These values are verified during qualification testing and reflect the device's ability to survive electrostatic discharge events during handling, assembly, and field operation-critical for automotive modules exposed to dry-climate environments or automated manufacturing lines.
BZD27B4V7P-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):
- 1V (Max)
- Voltage - Breakdown (Min):
- 4.61V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- 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)
BZD27B4V7P-HE3_A08 FAQ
1.How can I place an order for BZD27B4V7P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B4V7P-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 BZD27B4V7P-HE3_A08 reliable?
The price and inventory of BZD27B4V7P-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 BZD27B4V7P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B4V7P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B4V7P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B4V7P-HE3_A08?
BZD27B4V7P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B4V7P-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 BZD27B4V7P-HE3_A08?
For technical support, including BZD27B4V7P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B4V7P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B4V7P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B4V7P-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 BZD27B4V7P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B4V7P-HE3_A08?
All BZD27B4V7P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B4V7P-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 BZD27B4V7P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B4V7P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B4V7P-HE3_A08 Tags
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