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Vishay BZD27B180P-HE3_A18
- Part No.:
- BZD27B180P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B180P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,586
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Product details
Overview
BZD27B180P-HE3_A18 from Vishay Semiconductors is a surface-mount, AEC-Q101 qualified Zener diode optimized for high-voltage transient voltage suppression and precision voltage regulation in automotive and industrial power rails. It delivers a nominal Zener voltage of 180 V with ±2 % tolerance at 5 mA test current, 150 W peak surge power rating (10/1000 μs), and low dynamic resistance of 400 Ω - enabling stable clamping in overvoltage protection circuits for DC-link monitoring and battery management systems.
For engineers reviewing the BZD27B180P-HE3_A18 datasheet, BZD27B180P-HE3_A18 pinout, BZD27B180P-HE3_A18 application, or BZD27B180P-HE3_A18 equivalent, key selection criteria include its 180 V Zener voltage, 150 W surge capability, DO-219AB (SMF) package, AEC-Q101 qualification, and 0.6 %/°C temperature coefficient - critical for high-reliability automotive ECU and ADAS power rail protection designs.
Technical Context
This unidirectional Zener diode operates as a voltage reference and transient suppressor in reverse-biased configuration. Its design integrates silicon planar junction technology with low-leakage construction, achieving 1 μA maximum reverse current at 150 V and 130 V clamping voltage at 5 A peak pulse current (10/1000 μs waveform).
The device features MSL level 1 moisture sensitivity, JESD 201 Class 2 whisker resistance, and wave/reflow solder compatibility. Its thermal resistance of 180 K/W (junction-to-ambient, mounted on 3 mm × 3 mm Cu pads) supports sustained operation up to 175 °C junction temperature in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 176.4 V to 183.6 V (±2 % tolerance at IZT = 5 mA; ensures precise voltage clamping in 180 V rail protection) |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs waveform; sustains automotive load-dump transients without failure) |
| Clamping Voltage (VC) | 242 V at IRSM = 5 A (defines maximum voltage seen by protected circuit during surge) |
| Dynamic Resistance (ZZ) | 400 Ω (typical at IZT = 5 mA; low impedance improves regulation stability under varying current) |
| Temperature Coefficient (αVZ) | +0.09 %/°C to +0.13 %/°C (positive drift enables predictable voltage shift across -65 °C to +175 °C operating range) |
| Junction Temperature (Tj) | 175 °C max (supports under-hood automotive deployment without derating in thermally constrained enclosures) |
| Package | DO-219AB (SMF); 2.7 mm × 1.7 mm footprint with 0.85 mm height - enables high-density placement on space-constrained PCBs) |
Pinout & Package
Two-terminal SMD device in DO-219AB (SMF) package. Cathode marked by band on top surface; anode and cathode terminals are non-polarized in layout but functionally asymmetric - cathode connects to higher-potential node during clamping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in reverse-bias configuration | Connected to ground or low-voltage reference; carries surge current return path during transient events |
| Cathode | High-side connection in reverse-bias configuration | Connected to protected line (e.g., 180 V DC bus); defines clamping threshold and absorbs energy during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, battery monitoring, and ADAS power supplies |
| MSL Level 1 handling | Zero bake requirement before reflow; compatible with standard SMT assembly lines without moisture preconditioning |
| 150 W surge rating (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a load-dump surges common in 24 V/48 V vehicle electrical systems |
| Low leakage current | ≤1 μA at 150 V reverse bias minimizes standby power loss in always-on automotive modules |
| Positive temperature coefficient | Enables parallel operation without thermal runaway when multiple devices protect same rail |
Applications
| Automotive Load-Dump Protection | Industrial DC-Link Overvoltage Clamp |
|---|---|
Use Scenario: Protecting 180 V battery management system (BMS) front-end from ISO 7637-2 Pulse 5a transients during alternator load dump. IC Role / Device Role / Timing Role: Unidirectional Zener clamp placed across DC-link input to limit voltage excursion to ≤242 V during 10/1000 μs surges. Use Value: Prevents damage to downstream SiC MOSFET drivers and isolated ADCs by limiting peak rail voltage within safe operating area. | Use Scenario: Safeguarding 180 V intermediate bus in industrial servo drive against regeneration-induced overvoltage spikes. IC Role / Device Role / Timing Role: Standby Zener regulator that activates only during >180 V excursions, absorbing energy via controlled avalanche breakdown. Use Value: Eliminates need for active crowbar circuitry while maintaining <1 μA quiescent leakage during normal 170–180 V operation. |
| High-Voltage Sensor Reference | Telecom Power Supply Regulation |
Use Scenario: Providing stable 180 V reference for isolated voltage sensing in HV EV charger feedback loops. IC Role / Device Role / Timing Role: Precision Zener element in resistive divider network, delivering ±2 % voltage accuracy across -40 °C to +125 °C. Use Value: Enables accurate state-of-charge calculation without calibration drift due to its +0.09 %/°C tempco and 0.1 % long-term stability. | Use Scenario: Regulating auxiliary 180 V supply in telecom rectifier modules subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage protector placed before DC-DC converter input stage to prevent latch-up during 10/1000 μs transients. Use Value: Achieves 150 W surge dissipation in 2.7 mm × 1.7 mm footprint - reducing board area vs. TVS arrays while meeting GR-1089-CORE requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A-E3/52 | TVS diode with 180 V standoff, 200 W peak power, bidirectional configuration | Designed for fast transient suppression (clamping time <1 ns); lacks precision Zener regulation capability | Select for faster response to ESD/lightning; avoid where DC voltage reference stability is required |
| BZD27C180P-HE3_A18 | Same family, ±5 % VZ tolerance (vs. ±2 %), identical package and surge rating | Lower cost variant for non-critical voltage references where tighter regulation not needed | Use when 180 V ±5 % clamping is acceptable and AEC-Q101 compliance remains mandatory |
Compared with BZD27B180P-HE3_A18, SMBJ180A-E3/52 offers superior transient response but no DC regulation; BZD27C180P-HE3_A18 trades 2.5× looser voltage tolerance for cost reduction while retaining AEC-Q101 and surge performance - making it suitable for less sensitive protection zones.
Availability
BZD27B180P-HE3_A18 is available at Aetrix Electronics and suitable for automotive power management, industrial DC-link protection, and high-voltage sensor reference applications requiring stable component supply, AEC-Q101 qualification, and 150 W surge resilience.
Supply support for BZD27B180P-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 targets high-voltage Zener regulation and surge suppression in harsh-environment applications, with design emphasis on AEC-Q101 compliance, low-profile packaging, and stable parametric performance across extended temperature ranges.
FAQ
What is the Zener voltage tolerance of BZD27B180P-HE3_A18?
The BZD27B180P-HE3_A18 has a Zener voltage tolerance of ±2 %, specified as 176.4 V minimum to 183.6 V maximum at 5 mA test current. This tight tolerance ensures consistent clamping behavior across production lots and supports precision voltage reference use cases in automotive BMS and industrial power monitoring where regulation accuracy directly impacts system safety margins.
Is BZD27B180P-HE3_A18 suitable for automotive applications?
Yes, BZD27B180P-HE3_A18 is AEC-Q101 qualified and rated for operation from -65 °C to +175 °C junction temperature. Its MSL Level 1 rating, JESD 201 Class 2 whisker resistance, and 8 kV HBM ESD capability make it suitable for under-hood ECUs, battery disconnect units, and ADAS domain controllers where reliability under thermal and mechanical stress is mandatory.
What is the maximum clamping voltage of BZD27B180P-HE3_A18 during a surge event?
The BZD27B180P-HE3_A18 clamps to a maximum of 242 V at 5 A peak pulse current (10/1000 μs waveform). This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during standardized surge events - critical for ensuring downstream components remain within their absolute maximum ratings.
Which package does BZD27B180P-HE3_A18 use, and what are its dimensions?
BZD27B180P-HE3_A18 uses the DO-219AB (SMF) package: 2.7 mm × 1.7 mm body size with 0.85 mm maximum height and 0.35 mm lead pitch. The cathode is marked by a band on the top surface. This low-profile SMD outline enables high-density placement in space-constrained automotive and industrial PCBs while maintaining robust thermal performance.
How does the temperature coefficient affect BZD27B180P-HE3_A18 performance?
The BZD27B180P-HE3_A18 exhibits a positive temperature coefficient of +0.09 %/°C to +0.13 %/°C, meaning its Zener voltage increases predictably with rising junction temperature. This behavior allows stable parallel operation without thermal runaway and supports accurate voltage referencing across wide ambient ranges - especially valuable in engine compartment and industrial motor drive environments.
BZD27B180P-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):
- 150V (Max)
- Voltage - Breakdown (Min):
- 176.4V
- Voltage - Clamping (Max) @ Ipp:
- 242V
- Current - Peak Pulse (10/1000µs):
- 600mA
- 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)
BZD27B180P-HE3_A18 FAQ
1.How can I place an order for BZD27B180P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B180P-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 BZD27B180P-HE3_A18 reliable?
The price and inventory of BZD27B180P-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 BZD27B180P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B180P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B180P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B180P-HE3_A18?
BZD27B180P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B180P-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 BZD27B180P-HE3_A18?
For technical support, including BZD27B180P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B180P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B180P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B180P-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 BZD27B180P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B180P-HE3_A18?
All BZD27B180P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B180P-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 BZD27B180P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B180P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B180P-HE3_A18 Tags
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