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Vishay BZD27B8V2P-HE3_A18
- Part No.:
- BZD27B8V2P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B8V2P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,545
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Product details
Overview
BZD27B8V2P-HE3_A18 from Vishay Semiconductors is an AEC-Q101 qualified, surface-mount silicon planar Zener diode with nominal 8.2 V breakdown voltage (±2 % tolerance), 100 mA test current, and 150 W non-repetitive peak surge power rating in a DO-219AB (SMF) package. It delivers stable voltage regulation and transient overvoltage protection in automotive power rails and industrial DC supply monitoring circuits.
For engineers reviewing the BZD27B8V2P-HE3_A18 datasheet, BZD27B8V2P-HE3_A18 pinout, BZD27B8V2P-HE3_A18 application, or BZD27B8V2P-HE3_A18 equivalent, key selection criteria include its ±2 % VZ tolerance at 100 mA, 11.8 V clamping voltage at 12.2 A surge current, -65 °C to +175 °C operating temperature range, and MSL Level 1 reflow compatibility up to 260 °C.
Technical Context
This unidirectional Zener diode operates in reverse-bias breakdown mode for precision voltage reference and overvoltage clamping. Its low dynamic resistance (2 Ω typical at IZT = 100 mA) and tight ±2 % VZ tolerance support stable regulation under varying load conditions.
Designed for automotive-grade reliability, it meets AEC-Q101 qualification, JESD201 Class 2 whisker testing, and ESD robustness (>8 kV HBM). The device sustains 150 W peak surge power (10/1000 μs waveform) and exhibits a positive temperature coefficient of +0.03 to +0.08 %/°C across its operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ Nominal | 8.2 V - precise regulation point with ±2 % tolerance ensures accurate voltage reference in feedback loops |
| IZT | 100 mA - standardized test current enabling consistent comparison of Zener voltage and dynamic resistance |
| VC @ IRSM | 11.8 V at 12.2 A - clamping voltage during 10/1000 μs surge defines maximum protected circuit voltage |
| PRSM | 150 W - peak surge power handling capacity for transient suppression in automotive load-dump events |
| TJ Max | 175 °C - high junction temperature rating supports operation in under-hood environments |
| αVZ | +0.03 to +0.08 %/°C - predictable positive temperature drift simplifies thermal compensation in precision references |
| Package | DO-219AB (SMF) - low-profile SMD outline with 2.7 × 3.9 mm footprint and MSL Level 1 reflow compatibility |
Pinout & Package
Two-terminal device in DO-219AB (SMF) package: cathode marked with band; anode and cathode terminals enable unidirectional reverse-bias operation. Package dimensions: 2.7 mm × 3.9 mm × 1.08 mm, 15 mg weight, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias connection | Connected to lower-potential side of protected circuit; enables Zener conduction when cathode voltage exceeds VZ |
| Cathode | Input node for voltage clamping | Banded terminal connected to higher-potential rail; sinks surge current during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring long-term reliability |
| ±2 % VZ tolerance | Enables tighter system-level voltage margining without additional calibration in 12 V and 24 V DC systems |
| 150 W peak surge rating | Withstands ISO 7637-2 Pulse 5a load-dump transients without degradation in automotive power supplies |
| MSL Level 1 | Allows unlimited floor life and single-reflow processing at peak 260 °C, reducing manufacturing complexity |
| Low dynamic resistance | 2 Ω typical at 100 mA ensures minimal voltage shift under dynamic load changes in regulation circuits |
Applications
| Automotive Power Rail Protection | Industrial DC Supply Monitoring |
|---|---|
Use Scenario: Protecting microcontroller power inputs against load-dump transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional voltage clamp placed between battery rail and LDO input. Use Value: Limits voltage to ≤11.8 V during 10/1000 μs surges, preventing LDO damage while maintaining system uptime. | Use Scenario: Stabilizing reference voltage for analog-to-digital converters in programmable logic controllers. IC Role / Device Role / Timing Role: Precision Zener shunt regulator providing 8.2 V reference to ADC voltage divider network. Use Value: ±2 % VZ tolerance and +0.03 %/°C TC ensure <0.5 % total reference error over -40 °C to +125 °C operating range. |
| Telecom Line Surge Suppression | Medical Sensor Power Conditioning |
Use Scenario: Clamping induced surges on 48 V PoE-powered Ethernet interfaces. IC Role / Device Role / Timing Role: Primary overvoltage protector on DC input stage before DC-DC converter. Use Value: 150 W PRSM rating absorbs IEEE 802.3bt-compliant surge energy without parameter shift or failure. | Use Scenario: Regulating bias voltage for low-noise instrumentation amplifiers in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-leakage (<10 μA at 6.8 V) Zener reference source for amplifier gain-setting networks. Use Value: 2 Ω dynamic resistance minimizes output impedance variation, preserving signal integrity in sub-mV measurement paths. |
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 with 8.0 V standoff, 13.6 V clamping, 600 W peak power - higher surge capacity but looser voltage tolerance (±5 %) | Preferred for high-energy transient suppression where clamping voltage margin >1.8 V is acceptable | Select when surge energy exceeds 150 W but precision regulation is secondary to robustness |
| BZX84-C8V2 | SOT-23 Zener with 8.2 V nominal, ±5 % tolerance, 300 mW power - smaller package, lower surge rating (40 W), no AEC-Q101 qualification | Suitable for space-constrained consumer electronics where automotive qualification is unnecessary | Choose for cost-sensitive, non-automotive designs requiring only basic voltage reference functionality |
Compared with BZD27B8V2P-HE3_A18, SMBJ8.0A offers superior surge handling but sacrifices voltage accuracy and temperature stability, while BZX84-C8V2 reduces size and cost at the expense of automotive reliability and surge capability.
Availability
BZD27B8V2P-HE3_A18 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply with AEC-Q101 qualification and high surge immunity.
Supply support for BZD27B8V2P-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 demanding industrial and automotive applications.
The BZD27B Series targets automotive-grade voltage regulation and transient protection, designed specifically to meet AEC-Q101 requirements and replace legacy through-hole Zeners in modern SMT power systems.
FAQ
What is the Zener voltage tolerance of BZD27B8V2P-HE3_A18?
The BZD27B8V2P-HE3_A18 has a nominal Zener voltage of 8.2 V with a tight ±2 % tolerance, measured at 100 mA test current. This specification is confirmed in the Vishay BZD27B Series datasheet (Document Number: 85921, Rev. 2.1), ensuring reliable voltage reference performance in precision regulation circuits. The BZD27B8V2P-HE3_A18 maintains this tolerance across its full operating temperature range.
Does BZD27B8V2P-HE3_A18 support lead-free reflow soldering?
Yes, BZD27B8V2P-HE3_A18 is rated for lead-free reflow soldering with a maximum peak temperature of 260 °C and complies with MSL Level 1 per J-STD-020. Its DO-219AB package uses UL 94 V-0 compliant molding compound and is fully compatible with standard SMT assembly processes. The BZD27B8V2P-HE3_A18 has been validated for wave and reflow soldering without parametric shift or mechanical damage.
What is the clamping voltage of BZD27B8V2P-HE3_A18 under surge conditions?
The BZD27B8V2P-HE3_A18 clamps to 11.8 V at a 12.2 A surge current (10/1000 μs waveform), as specified in the "Electrical Characteristics" table for protection-mode operation. This clamping voltage defines the maximum voltage seen by downstream components during transient events. The BZD27B8V2P-HE3_A18 achieves this performance while maintaining its 150 W peak surge power rating and ±2 % VZ accuracy.
Is BZD27B8V2P-HE3_A18 qualified for automotive applications?
Yes, BZD27B8V2P-HE3_A18 is explicitly AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code. It meets JESD201 Class 2 whisker testing, >8 kV HBM ESD rating, and operates from -65 °C to +175 °C - all required for under-hood and powertrain applications. The BZD27B8V2P-HE3_A18 is certified for use in automotive ECUs, body control modules, and ADAS power systems.
What package type does BZD27B8V2P-HE3_A18 use?
BZD27B8V2P-HE3_A18 uses the DO-219AB (SMF) surface-mount package, measuring 2.7 mm × 3.9 mm × 1.08 mm with a 15 mg mass. This low-profile outline is compatible with SOD-123W, SOD-123F, and SOD-123FL footprints. The BZD27B8V2P-HE3_A18 features a cathode band marking and is optimized for automated pick-and-place and reflow assembly.
BZD27B8V2P-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):
- 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_A18 FAQ
1.How can I place an order for BZD27B8V2P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B8V2P-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 BZD27B8V2P-HE3_A18 reliable?
The price and inventory of BZD27B8V2P-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 BZD27B8V2P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B8V2P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B8V2P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B8V2P-HE3_A18?
BZD27B8V2P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B8V2P-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 BZD27B8V2P-HE3_A18?
For technical support, including BZD27B8V2P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B8V2P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B8V2P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B8V2P-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 BZD27B8V2P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B8V2P-HE3_A18?
All BZD27B8V2P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B8V2P-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 BZD27B8V2P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B8V2P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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