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Vishay BZD27B150P-HE3_A18
- Part No.:
- BZD27B150P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B150P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,464
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Product details
Overview
BZD27B150P-HE3_A18 from Vishay Semiconductors is a surface-mount, AEC-Q101 qualified Zener diode with nominal breakdown voltage of 150 V, ±2 % tolerance, 5 mA test current, 201 V clamping voltage at 120 A surge, and 150 W peak surge power rating (10/1000 μs). It serves as overvoltage protection in automotive power supply rails and high-voltage DC bus monitoring circuits.
For engineers reviewing the BZD27B150P-HE3_A18 datasheet, BZD27B150P-HE3_A18 pinout, BZD27B150P-HE3_A18 application, or BZD27B150P-HE3_A18 equivalent, key selection criteria include its 150 V Zener voltage, 150 W surge rating, DO-219AB (SMF) package, AEC-Q101 qualification, and 0.73 %/°C temperature coefficient - critical for stable clamping in under-hood automotive environments.
Technical Context
This unidirectional Zener diode operates in reverse-biased avalanche mode to regulate or clamp voltage transients. Its design integrates low dynamic impedance (130 Ω typical at 5 mA) and tight voltage tolerance (±2 %) to ensure precise threshold behavior during ESD and load-dump events.
Rated for junction temperatures up to 175 °C and qualified per AEC-Q101, it supports automotive-grade reliability with MSL level 1 moisture sensitivity, JESD 201 Class 2 whisker resistance, and wave/reflow solder compatibility - enabling direct integration into engine control units and battery management systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 147.0–153.0 V (nominal 150 V, ±2 % tolerance ensures accurate clamping in 12 V/24 V/48 V automotive systems) |
| Test Current (IZT) | 5 mA (standard bias point for specifying VZ; enables stable regulation under low-power standby conditions) |
| Clamping Voltage (VC) | 201 V at IRSM = 120 A (10/1000 μs pulse; defines maximum voltage seen by protected circuit during surge) |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs waveform; sustains automotive load-dump transients without failure) |
| Temperature Coefficient (αVZ) | +0.09 to +0.13 %/°C (positive drift improves stability at elevated under-hood temperatures) |
| Junction-to-Ambient Thermal Resistance | 180 K/W (on 3 mm × 3 mm Cu pad; determines thermal derating in compact PCB layouts) |
| Package | DO-219AB (SMF); 2.7 × 3.5 × 0.85 mm footprint; compatible with SOD-123W outline for layout reuse |
Pinout & Package
DO-219AB (SMF) surface-mount package: cathode-marked anode-cathode configuration, low-profile 2.7 mm width, 3.5 mm length, and 0.85 mm height. Designed for automated placement and reflow soldering with MSL level 1 handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or lower-potential rail | Provides reference node for reverse-bias clamping operation; must be routed with low-inductance path to minimize overshoot |
| Cathode | Current exit terminal in forward bias; connected to protected line or higher-potential rail | Accepts transient energy during overvoltage events; marking band identifies this terminal on top surface |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS, and battery systems - guarantees reliability under thermal cycling, mechanical shock, and humidity stress |
| 150 W peak surge rating (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a load-dump surges in 24 V vehicle architectures without degradation |
| ±2 % Zener voltage tolerance | Enables precise overvoltage threshold setting without post-production calibration in safety-critical power monitors |
| MSL level 1, 260 °C peak reflow | Eliminates bake-out requirements and supports standard lead-free assembly processes in high-volume automotive manufacturing |
| 0.73 %/°C temperature coefficient | Compensates for ambient rise in under-hood environments, maintaining clamping accuracy across -65 °C to +175 °C operating range |
Applications
| Automotive Load-Dump Protection | High-Voltage DC Bus Monitoring |
|---|---|
Use Scenario: Protecting microcontrollers and sensors in alternator-regulated 24 V systems during sudden battery disconnection. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between battery rail and protected IC input. Use Value: Clamps to 201 V at 120 A, limiting stress on downstream 200 V-rated components during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding analog front-ends in industrial motor drives with 300–400 V DC link voltages. IC Role / Device Role / Timing Role: Standby Zener clamp that activates only during overvoltage faults, not during normal operation. Use Value: Provides fail-safe shutdown trigger at precisely 150 V with ±2 % tolerance, avoiding nuisance trips near nominal bus voltage. |
| On-Board Charger (OBC) Input Stage | EV Battery Management System (BMS) Cell Monitoring |
Use Scenario: Transient suppression on AC/DC converter input stage exposed to grid surges and switching noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp on rectified input before bulk capacitor and PFC controller. Use Value: Absorbs 150 W surges with 180 K/W thermal resistance, enabling compact heatsink-free layout in space-constrained OBC modules. | Use Scenario: Voltage reference stabilization for isolated cell voltage measurement circuits in 800 V battery packs. IC Role / Device Role / Timing Role: Precision Zener reference source with low dynamic impedance (130 Ω) for ADC bias networks. Use Value: Delivers 150 V reference with <0.13 %/°C drift, reducing temperature-induced measurement error in multi-cell string monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52 | TVS diode (not Zener); 150 V standoff, 243 V clamping at 100 A; higher capacitance (150 pF) | Designed for fast ESD/transient suppression; lacks precision regulation capability | Select when primary need is sub-ns response to ESD, not stable DC voltage reference |
| BZD27C150P-HE3_A18 | Same package and Zener voltage but ±5 % tolerance (vs. ±2 %); higher leakage at VR | Lower-cost alternative where tighter voltage tolerance is non-critical | Choose for cost-sensitive industrial controls where 142.5–157.5 V clamping range is acceptable |
Compared with SMBJ150A-E3/52 and BZD27C150P-HE3_A18, the BZD27B150P-HE3_A18 uniquely combines AEC-Q101 qualification, ±2 % VZ tolerance, and 150 W surge rating - making it the only option suitable for automotive-grade precision clamping where both reliability and voltage accuracy are mandatory.
Availability
BZD27B150P-HE3_A18 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and EV charging infrastructure requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for BZD27B150P-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 portfolio, engineered specifically for AEC-Q101-compliant overvoltage protection in harsh-environment automotive power systems.
FAQ
What is the Zener voltage tolerance of BZD27B150P-HE3_A18?
The BZD27B150P-HE3_A18 has a Zener voltage tolerance of ±2 %, specified as 147.0 V minimum to 153.0 V maximum at 5 mA test current. This tight tolerance ensures predictable clamping behavior in automotive voltage rails where precise overvoltage thresholds are required for system-level fault detection and protection logic in the BZD27B150P-HE3_A18.
Is BZD27B150P-HE3_A18 qualified for automotive use?
Yes, BZD27B150P-HE3_A18 is AEC-Q101 qualified and rated for operation from -65 °C to +175 °C. It meets JESD 201 Class 2 whisker testing, MSL level 1 handling, and 8 kV HBM ESD immunity - confirming its suitability for under-hood and powertrain applications where the BZD27B150P-HE3_A18 is deployed.
What is the clamping voltage of BZD27B150P-HE3_A18 during a surge event?
The BZD27B150P-HE3_A18 clamps to 201 V at a peak surge current of 120 A using the 10/1000 μs waveform. This value is measured per IEC 60-1 and defines the maximum voltage imposed on protected circuitry during standardized load-dump transients - a key parameter for validating system robustness with the BZD27B150P-HE3_A18.
Which package does BZD27B150P-HE3_A18 use, and what are its dimensions?
BZD27B150P-HE3_A18 uses the DO-219AB (SMF) package: 2.7 mm width, 3.5 mm length, and 0.85 mm height, with cathode marking on the top surface. Its footprint matches SOD-123W outlines, enabling layout reuse in space-constrained automotive PCBs where the BZD27B150P-HE3_A18 is integrated.
How does the temperature coefficient affect BZD27B150P-HE3_A18 performance?
The BZD27B150P-HE3_A18 has a positive temperature coefficient of +0.09 to +0.13 %/°C, meaning its Zener voltage increases slightly with rising junction temperature. This characteristic improves clamping margin at high ambient temperatures common in automotive engine compartments, ensuring consistent protection performance across the full -65 °C to +175 °C range of the BZD27B150P-HE3_A18.
BZD27B150P-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):
- 120V (Max)
- Voltage - Breakdown (Min):
- 147V
- Voltage - Clamping (Max) @ Ipp:
- 201V
- Current - Peak Pulse (10/1000µs):
- 730mA
- 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)
BZD27B150P-HE3_A18 FAQ
1.How can I place an order for BZD27B150P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B150P-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 BZD27B150P-HE3_A18 reliable?
The price and inventory of BZD27B150P-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 BZD27B150P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B150P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B150P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B150P-HE3_A18?
BZD27B150P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B150P-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 BZD27B150P-HE3_A18?
For technical support, including BZD27B150P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B150P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B150P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B150P-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 BZD27B150P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B150P-HE3_A18?
All BZD27B150P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B150P-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 BZD27B150P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B150P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B150P-HE3_A18 Tags
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Diodes Incorporated
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