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Vishay General Semiconductor - Diodes Division BZD27B4V7P-HE3-08
- Part No.:
- BZD27B4V7P-HE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B4V7P-HE3-08.pdf
- Description:
- DIODE ZENER 4.7V 800MW DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,918
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Product details
Overview
BZD27B4V7P-HE3-08 from Vishay Semiconductors is a surface-mount, AEC-Q101-qualified Zener diode with nominal breakdown voltage of 4.7 V, ±2 % tolerance, 100 mA test current, and 150 W peak surge power rating (10/1000 μs waveform). It operates as a precision voltage reference and transient voltage suppressor in automotive power rail protection circuits.
For engineers reviewing the BZD27B4V7P-HE3-08 datasheet, BZD27B4V7P-HE3-08 pinout, BZD27B4V7P-HE3-08 application, or BZD27B4V7P-HE3-08 equivalent, key selection criteria include its 4.7 V Zener voltage tolerance, low dynamic resistance (3 Ω typ.), negative temperature coefficient (–0.10 to 0.00 %/°C), AEC-Q101 qualification, and DO-219AB (SMF) package compatibility.
Technical Context
This unidirectional Zener diode uses silicon planar technology for stable voltage regulation under DC bias and transient clamping during surge events. Its design supports both voltage reference and overvoltage protection roles, with specified clamping voltage of 10.9 V at 13.3 A (10/1000 μs pulse).
It features low leakage current (≤10 μA at VR = 3.8 V), meets MSL level 1 per J-STD-020 (peak reflow ≤260 °C), and passes JESD 201 Class 2 whisker testing. The device is rated for junction temperatures up to 175 °C and storage from –65 °C to +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.61 V min. / 4.7 V nom. / 4.79 V max. - tight ±2 % tolerance enables accurate 4.7 V reference or clamp threshold |
| Test Current (IZT) | 100 mA - standard operating point for specifying VZ, dynamic resistance, and temperature coefficient |
| Dynamic Resistance (ZZ) | 3 Ω typ. / 7 Ω max. - low impedance ensures minimal voltage deviation under load current changes |
| Clamping Voltage (VC) | 10.9 V at IRSM = 13.3 A (10/1000 μs) - defines maximum voltage seen by protected circuit during surge |
| Peak Surge Power (PRSM) | 150 W - sustains high-energy transients without failure, critical for automotive load-dump immunity |
| Temperature Coefficient (αVZ) | –0.10 %/°C min. / 0.00 %/°C max. - near-zero drift improves stability across –65 °C to +175 °C operating range |
| Reverse Leakage (IR) | ≤10 μA at VR = 3.8 V - low standby current minimizes power loss in always-on systems |
Pinout & Package
Package: DO-219AB (SMF), low-profile surface-mount case with cathode marking on top surface; dimensions 2.7 × 3.5 × 0.85 mm (L × W × H); compatible with standard SOD-123W footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener operation | Enables standard polarity connection for reverse-biased regulation or clamping |
| Cathode | Current exit terminal in forward bias; connected to higher-potential node in Zener operation | Marked side on package; must be biased positive relative to anode for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring reliability under thermal cycling and vibration |
| 150 W peak surge rating (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a load-dump surges without degradation in automotive 12 V systems |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing |
| Low dynamic resistance (3 Ω typ.) | Minimizes output voltage variation under varying load currents, improving regulation accuracy |
| Junction temperature rating (175 °C) | Supports placement near high-heat sources (e.g., power MOSFETs, DC-DC converters) without derating |
Applications
| Automotive Power Rail Protection | Industrial Sensor Reference Supply |
|---|---|
|
Use Scenario: Protecting microcontroller I/O lines and CAN transceivers from load-dump and jump-start transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between supply rail and ground, conducting only during overvoltage events. Use Value: Clamps to ≤10.9 V at 13.3 A, preventing damage to downstream 5 V logic while maintaining AEC-Q101 compliance. |
Use Scenario: Providing stable 4.7 V reference for analog-to-digital conversion in industrial pressure and temperature sensors. IC Role / Device Role / Timing Role: Precision Zener voltage reference sourcing regulated bias for op-amp and ADC reference inputs. Use Value: ±2 % VZ tolerance and –0.10 to 0.00 %/°C αVZ ensure <±0.5 % total error over –40 °C to +125 °C operating range. |
| Consumer USB Port ESD Clamp | Telecom Line Interface Protection |
|
Use Scenario: Secondary-level ESD protection on USB 2.0 data lines (D+/D–) in portable audio devices and docking stations. IC Role / Device Role / Timing Role: Low-capacitance Zener clamp shunting fast transients (<1 ns rise time) to ground before reaching USB PHY. Use Value: 10 μA max. leakage at 3.8 V avoids signal integrity issues; DO-219AB package fits tight 0.5 mm pitch layouts. |
Use Scenario: Overvoltage protection on 48 V phantom-powered analog telephone line interfaces in VoIP gateways. IC Role / Device Role / Timing Role: Standby Zener regulator holding line voltage within safe limits during lightning-induced surges. Use Value: 150 W PRSM rating handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω); 175 °C TJ rating supports sealed enclosure operation. |
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 | 4.5 V standoff, 100 W PPPM, larger SMB package (4.5 × 3.9 mm) | Lower surge rating; not AEC-Q101 qualified; intended for general-purpose TVS use | Select when cost or legacy footprint drives choice, but verify 4.5 V vs. 4.7 V threshold impact on system margin |
| BZX84-C4V7 | 4.7 V, ±5 % tolerance, SOT-23 package, 300 mW Ptot, no surge rating | Limited to low-energy clamping; unsuitable for automotive load-dump or industrial surge standards | Use only in non-safety-critical, low-power consumer applications where 150 W surge capability is unnecessary |
Compared with SMBJ4.5A and BZX84-C4V7, the BZD27B4V7P-HE3-08 delivers tighter voltage tolerance, higher surge robustness, and automotive-grade qualification-making it the sole option among the three suitable for AEC-Q101-compliant 12 V rail protection.
Availability
BZD27B4V7P-HE3-08 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor reference supplies, and telecom line interface protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for BZD27B4V7P-HE3-08 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 BZD27B Series targets high-surge, high-temperature applications demanding AEC-Q101 qualification and precise Zener regulation-designed specifically for automotive power rail protection and industrial voltage reference needs.
FAQ
What is the Zener voltage tolerance of the BZD27B4V7P-HE3-08?
The BZD27B4V7P-HE3-08 has a Zener voltage tolerance of ±2 %, with a nominal value of 4.7 V, minimum of 4.61 V, and maximum of 4.79 V at 100 mA test current. This tight tolerance is confirmed in the Vishay datasheet (Document No. 85921, Rev. 2.1) and enables precise voltage regulation in reference and protection circuits where accuracy is critical.
Is the BZD27B4V7P-HE3-08 qualified for automotive applications?
Yes, the BZD27B4V7P-HE3-08 is AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code. It meets the stress test requirements for automotive discrete semiconductors, including temperature cycling, humidity bias, and mechanical shock-making it suitable for engine control, body electronics, and ADAS subsystems.
What is the clamping voltage of the BZD27B4V7P-HE3-08 during a surge event?
The BZD27B4V7P-HE3-08 clamps to 10.9 V at a peak surge current of 13.3 A under the 10/1000 μs waveform (IEC 61000-4-5), as specified in the Vishay datasheet Table on page 3. This clamping voltage defines the maximum voltage imposed on protected circuitry during standardized surge tests.
Which package does the BZD27B4V7P-HE3-08 use, and what are its key dimensions?
The BZD27B4V7P-HE3-08 uses the DO-219AB (SMF) package: 2.7 mm length × 3.5 mm width × 0.85 mm height, with cathode marking on the top surface. Its footprint matches SOD-123W and is optimized for high-density PCB layouts while supporting wave and reflow soldering per J-STD-020 MSL Level 1.
Does the BZD27B4V7P-HE3-08 have a specified temperature coefficient?
Yes, the BZD27B4V7P-HE3-08 has a temperature coefficient (αVZ) ranging from –0.10 %/°C to 0.00 %/°C at 100 mA, indicating near-zero drift across temperature. This value is measured per JESD211 and ensures stable regulation performance from –65 °C to +175 °C, critical for under-hood automotive environments.
BZD27B4V7P-HE3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- BZD27B
- Package/Case:
- DO-219AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- -
- Power - Max:
- 800 mW
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
BZD27B4V7P-HE3-08 FAQ
1.How can I place an order for BZD27B4V7P-HE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B4V7P-HE3-08 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 BZD27B4V7P-HE3-08 reliable?
The price and inventory of BZD27B4V7P-HE3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27B4V7P-HE3-08 is usually 5 days.
3.What payment methods are accepted for BZD27B4V7P-HE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B4V7P-HE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B4V7P-HE3-08?
BZD27B4V7P-HE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B4V7P-HE3-08 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 BZD27B4V7P-HE3-08?
For technical support, including BZD27B4V7P-HE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B4V7P-HE3-08 requirements.
6.How does Aetrix verify that BZD27B4V7P-HE3-08 is sourced from the original manufacturer or authorized distributors?
All BZD27B4V7P-HE3-08 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 BZD27B4V7P-HE3-08 meets industry standards.
7.What is the process for return or replacement of BZD27B4V7P-HE3-08?
All BZD27B4V7P-HE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B4V7P-HE3-08, 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 BZD27B4V7P-HE3-08 part is unused and in its original packaging.
Return procedure for BZD27B4V7P-HE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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