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Vishay BZD27B6V8P-HE3_A18
- Part No.:
- BZD27B6V8P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B6V8P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,664
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Product details
Overview
BZD27B6V8P-HE3_A18 from Vishay Semiconductors is a surface-mount silicon planar Zener diode with nominal breakdown voltage of 6.8 V, ±2 % tolerance, 100 mA test current, and 150 W peak surge power rating (10/1000 μs). It operates as a precision voltage reference and transient voltage suppressor in automotive power rail protection circuits.
For engineers reviewing the BZD27B6V8P-HE3_A18 datasheet, BZD27B6V8P-HE3_A18 pinout, BZD27B6V8P-HE3_A18 application, or BZD27B6V8P-HE3_A18 equivalent, key selection criteria include its AEC-Q101 qualification, 175 °C max junction temperature, low dynamic resistance (1 Ω typ.), and DO-219AB (SMF) package compatibility with high-density PCB layouts.
Technical Context
This unidirectional Zener diode functions in reverse-bias regulation mode with a nominal Zener voltage of 6.8 V at 100 mA test current, exhibiting a temperature coefficient of 0 to +0.07 %/°C. Its low leakage current (≤10 μA at VR = 5.6 V) and stable dynamic resistance (1 Ω typical) support accurate voltage clamping under transient conditions.
The device meets JESD201 Class 2 whisker testing and MSL Level 1 per J-STD-020, with peak reflow temperature up to 260 °C. Its 150 W non-repetitive peak surge power (10/1000 μs) and 300 W (100 μs square pulse) enable robust ESD and load-dump protection in automotive ECUs and body control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.66 V min. to 6.94 V max. at IZT = 100 mA - ensures tight regulation within ±2 % for stable reference applications |
| Test Current (IZT) | 100 mA - defines operating point for specified VZ and dynamic resistance |
| Dynamic Resistance (ZZ) | 1 Ω typical - minimizes voltage shift under varying load current, critical for precision regulation |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs) - supports automotive ISO 7637-2 pulse 5a/b load-dump suppression without failure |
| Junction Temperature (TJ) | −65 °C to +175 °C - enables operation in under-hood automotive environments |
| Package | DO-219AB (SMF) - 2.7 × 3.5 mm footprint with low thermal resistance (RthJA = 180 K/W on 3 mm × 3 mm Cu pad) |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including ESD (HBM > 8 kV), temperature cycling, and mechanical shock |
Pinout & Package
DO-219AB (SMF) package: low-profile surface-mount case with cathode band marking; dimensions 2.7 mm × 3.5 mm × 1.08 mm; compatible with standard SOD-123W footprint layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to system ground or lower-potential rail during Zener operation; carries forward current up to 0.2 A (VF ≤ 1.2 V) |
| Cathode | Zener breakdown terminal / Voltage clamp node | Connected to protected line (e.g., 12 V rail); conducts reverse current above 6.8 V to clamp transients |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement in precision voltage reference designs without recalibration |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and chassis systems requiring zero-failure reliability |
| 150 W peak surge power (10/1000 μs) | Meets ISO 7637-2 Pulse 5 requirements for 12 V vehicle electrical systems |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and eliminates bake preconditioning before reflow assembly |
| Low dynamic resistance (1 Ω typ.) | Reduces output voltage deviation under fast transient loads, improving regulator stability |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting microcontroller I/O lines and CAN transceiver power rails from load dump and jump-start surges in 12 V vehicle networks. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor clamping 12 V supply rail to ≤10.9 V during 10/1000 μs transients. Use Value: Prevents latch-up or permanent damage to downstream logic ICs by limiting overvoltage to safe levels defined in ISO 16750-2. | Use Scenario: Safeguarding 24 V DC digital input channels against field-wiring induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Standoff voltage regulator and surge limiter placed between field-side terminals and optocoupler input stage. Use Value: Maintains signal integrity during repetitive 1 kV/μs transients while drawing <10 μA leakage at 20 V, minimizing false triggering. |
| Automotive Infotainment Power Supply | Medical Sensor Signal Conditioning |
Use Scenario: Stabilizing 5 V LDO input rail in head unit power management against battery ripple and alternator noise. IC Role / Device Role / Timing Role: Precision shunt reference providing stable bias for feedback network of switching regulator controller. Use Value: Delivers 6.8 V reference with 0.07 %/°C tempco and 1 Ω ZZ, enabling <1 % output voltage drift across −40 °C to +125 °C ambient. | Use Scenario: Protecting analog front-end amplifiers in portable ECG monitors from ESD events during patient contact. IC Role / Device Role / Timing Role: Low-capacitance (≈2.5 pF at 0 V) Zener clamp on sensor input path to limit voltage to 6.8 V before op-amp input stage. Use Value: Prevents amplifier saturation and input-stage damage while preserving signal bandwidth due to minimal parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Higher PPPM (600 W), larger SMB package (4.5 × 3.9 mm), bidirectional configuration | Designed for higher-energy TVS duty; less suitable for precision regulation due to wider VBR tolerance (±5 %) | Select when surge energy exceeds 150 W but precision voltage reference is not required |
| BZX84-C6V8 | SOT-23 package (3.0 × 1.4 mm), lower PRSM (25 W), ±5 % VZ, no AEC-Q101 qualification | Targeted at commercial-grade consumer electronics; lacks automotive reliability validation and surge robustness | Select only for cost-sensitive, non-automotive applications where 175 °C operation and 150 W surge are unnecessary |
Compared with SMBJ6.8A and BZX84-C6V8, the BZD27B6V8P-HE3_A18 uniquely balances ±2 % voltage accuracy, AEC-Q101 qualification, and 150 W surge capability in a compact DO-219AB package-making it optimal for space-constrained automotive voltage reference and protection nodes where both precision and ruggedness are mandatory.
Availability
BZD27B6V8P-HE3_A18 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and medical sensor interface modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZD27B6V8P-HE3_A18 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 belongs to Vishay's eSMP® Zener platform, engineered specifically for AEC-Q101-compliant automotive voltage regulation and transient suppression in harsh-temperature, high-surge environments.
FAQ
What is the Zener voltage tolerance specification for BZD27B6V8P-HE3_A18?
The BZD27B6V8P-HE3_A18 has a Zener voltage range of 6.66 V to 6.94 V at 100 mA test current, corresponding to a ±2 % tolerance around the nominal 6.8 V value. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of Vishay document 85921 Rev. 2.1 and applies specifically to the BZD27B6V8P-HE3_A18 variant with HE3 suffix indicating AEC-Q101 qualification.
Is BZD27B6V8P-HE3_A18 qualified for automotive applications?
Yes, BZD27B6V8P-HE3_A18 is explicitly AEC-Q101 qualified, as indicated by the "-HE3" ordering code suffix per Vishay's ordering information table. It meets ESD requirements (>8 kV HBM, >800 V MM), JESD201 Class 2 whisker testing, and MSL Level 1, making it suitable for under-hood and chassis applications in passenger vehicles and commercial vehicles.
What is the maximum clamping voltage of BZD27B6V8P-HE3_A18 during a 10/1000 μs surge?
At IRSM = 13.3 A (10/1000 μs waveform), the BZD27B6V8P-HE3_A18 clamps to a maximum voltage of 10.9 V, as specified in the protection diode characteristics table on page 3 of Vishay document 85921. This value is measured at Tamb = 25 °C and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Which package does BZD27B6V8P-HE3_A18 use, and what are its key mechanical dimensions?
BZD27B6V8P-HE3_A18 uses the DO-219AB (SMF) package, with mechanical dimensions of 2.7 mm length × 3.5 mm width × 1.08 mm height, per package drawing S8-V-3915.01-001. The cathode is marked by a band on the top surface, and the device is oriented in tape with cathode facing the sprocket holes, as shown in figure 22670.
Does BZD27B6V8P-HE3_A18 have a specified junction-to-ambient thermal resistance?
Yes, BZD27B6V8P-HE3_A18 has a junction-to-ambient thermal resistance (RthJA) of 180 K/W when mounted on an epoxy-glass PCB with 3 mm × 3 mm copper pads ≥40 μm thick, as stated in the Absolute Maximum Ratings table on page 1 of Vishay document 85921. This value is essential for calculating safe power dissipation limits in real-world board layouts.
BZD27B6V8P-HE3_A18 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):
- 3V (Max)
- Voltage - Breakdown (Min):
- 6.66V
- 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)
BZD27B6V8P-HE3_A18 FAQ
1.How can I place an order for BZD27B6V8P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B6V8P-HE3_A18 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 BZD27B6V8P-HE3_A18 reliable?
The price and inventory of BZD27B6V8P-HE3_A18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27B6V8P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B6V8P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B6V8P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B6V8P-HE3_A18?
BZD27B6V8P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B6V8P-HE3_A18 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 BZD27B6V8P-HE3_A18?
For technical support, including BZD27B6V8P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B6V8P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B6V8P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B6V8P-HE3_A18 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 BZD27B6V8P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B6V8P-HE3_A18?
All BZD27B6V8P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B6V8P-HE3_A18, 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 BZD27B6V8P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B6V8P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B6V8P-HE3_A18 Tags
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