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Vishay BZD27B82P-HE3_A18
- Part No.:
- BZD27B82P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B82P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
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Product details
Overview
BZD27B82P-HE3_A18 from Vishay Semiconductors is a surface-mount, AEC-Q101-qualified Zener diode with nominal breakdown voltage of 82 V, ±2 % tolerance, 10 mA test current, and 110 V clamping voltage at 1.3 A surge current - used for overvoltage protection in automotive power rails and industrial DC bus monitoring.
For engineers reviewing the BZD27B82P-HE3_A18 datasheet, BZD27B82P-HE3_A18 pinout, BZD27B82P-HE3_A18 application, or BZD27B82P-HE3_A18 equivalent, key selection criteria include its 150 W peak surge power rating (10/1000 μs), 0.08 to 0.13 %/°C temperature coefficient, SOD-123W-compatible DO-219AB package, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This unidirectional Zener diode operates as a precision voltage clamp in reverse-bias mode, with dynamic impedance of 30 Ω at 10 mA and low leakage current ≤5 μA at 68 V. Its thermal resistance is 30 K/W junction-to-lead and 180 K/W junction-to-ambient on 3 mm × 3 mm Cu pads.
The device meets JESD201 Class 2 whisker test, MSL Level 1 per J-STD-020 (peak reflow 260 °C), and AEC-Q101 stress requirements - enabling robust operation in automotive environments up to 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 80.36 V min. to 83.64 V max. at 10 mA - ensures stable 82 V regulation with tight ±2 % tolerance for precision reference and protection. |
| Clamping Voltage (VC) | 110 V at IRSM = 1.3 A (10/1000 μs) - defines maximum transient voltage seen by protected circuit during surge events. |
| Peak Surge Power (PRSM) | 150 W - supports high-energy transients common in 12 V/24 V automotive systems without failure. |
| Temperature Coefficient (αVZ) | 0.08 %/°C min. to 0.13 %/°C max. - enables predictable voltage drift across -65 °C to +175 °C operating range. |
| Junction Temperature (Tj) | 175 °C max. - allows continuous operation in under-hood environments where ambient exceeds 125 °C. |
| Package | DO-219AB (SOD-123W-compatible) - low-profile 2.7 × 3.9 mm surface-mount outline with cathode marking and MSL Level 1 handling. |
| ESD Rating | HBM > 8 kV, MM > 800 V - provides robust electrostatic discharge immunity during assembly and field operation. |
Pinout & Package
DO-219AB (SMF) package: 2-terminal, unidirectional, cathode-marked surface-mount device. Dimensions: 2.7 mm × 3.9 mm × 1.08 mm (L × W × H); footprint requires 1.3 mm × 1.3 mm pad spacing with 1.4 mm cathode-side extension.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to lower-potential side of protected circuit; establishes reference for Zener breakdown voltage. |
| Cathode | Zener breakdown terminal / clamping output | Connected to protected line; conducts during overvoltage to clamp voltage at VC = 110 V (1.3 A). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS power domains. |
| Low-profile DO-219AB package | Enables high-density PCB layouts while maintaining thermal performance via 30 K/W RthJL. |
| 150 W 10/1000 μs surge rating | Withstands ISO 7637-2 Pulse 1/2/5a transients without degradation in 24 V truck/bus systems. |
| ±2 % VZ tolerance | Reduces need for post-production trimming in voltage reference and feedback-sensing circuits. |
| MSL Level 1 moisture sensitivity | Eliminates bake requirement before reflow, supporting standard SMT assembly lines without process changes. |
Applications
| Automotive Power Rail Protection | Industrial DC Bus Monitoring |
|---|---|
Use Scenario: Protecting microcontroller I/O and sensor interfaces from load-dump transients in 24 V commercial vehicle systems. IC Role / Device Role / Timing Role: Unidirectional voltage clamp placed between supply rail and ground, activated within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤110 V during 10/1000 μs pulses up to 150 W, preventing latch-up or permanent damage to downstream ICs. |
Use Scenario: Safeguarding programmable logic controllers (PLCs) against switching surges on 48 V industrial DC distribution buses. IC Role / Device Role / Timing Role: Standby overvoltage protector connected in parallel with bus capacitor, conducting only during fault conditions. Use Value: Maintains system uptime by absorbing repetitive 100 μs–1 ms surges without derating, thanks to 175 °C Tj rating and low thermal resistance. |
| Telecom Power Supply Clamp | Renewable Energy Inverter Gate Drive Protection |
Use Scenario: Clamping secondary-side bias rails in telecom AC/DC converters subject to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response Zener element shunting transient energy to ground before it reaches isolated DC-DC controller ICs. Use Value: Achieves <10 ns response time and 110 V clamping level, meeting IEC 61000-4-5 Level 4 immunity requirements. |
Use Scenario: Protecting high-side gate drivers in solar string inverters from Miller-induced voltage spikes during IGBT turn-off. IC Role / Device Role / Timing Role: Snubber-connected Zener referenced to driver ground, clamping gate-emitter voltage to safe levels. Use Value: Prevents false turn-on and gate oxide breakdown using precise 82 V threshold and 30 Ω dynamic impedance for minimal overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ82A-E3/52 (Vishay) | TVS diode, 82 V standoff, 100 W peak power, bidirectional configuration available | Designed for faster transient suppression (lower clamping ratio) but lacks precision Zener regulation | Select when surge speed and clamping ratio matter more than DC regulation accuracy |
| BZX84-C82LT1G (ON Semiconductor) | SOT-23 package, ±5 % tolerance, 350 mW PD, no AEC-Q101 qualification | Intended for low-power signal-level protection, not automotive power rail duty | Choose only for cost-sensitive consumer-grade 82 V references where AEC-Q101 and surge rating are unnecessary |
Compared with SMBJ82A-E3/52, BZD27B82P-HE3_A18 offers tighter voltage tolerance and AEC-Q101 qualification but slower transient response; versus BZX84-C82LT1G, it delivers 430× higher surge power and automotive-grade reliability at the cost of larger footprint and higher unit price.
Availability
BZD27B82P-HE3_A18 is available at Aetrix Electronics and suitable for automotive power management, industrial DC bus protection, and telecom surge suppression requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZD27B82P-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-surge, high-temperature Zener protection in automotive and industrial power systems - designed specifically to replace older through-hole Zeners while meeting AEC-Q101 and JESD201 requirements.
FAQ
What is the maximum clamping voltage of the BZD27B82P-HE3_A18 during a 10/1000 μs surge event?
The BZD27B82P-HE3_A18 clamps to 110 V at a peak reverse current of 1.3 A under 10/1000 μs waveform conditions, as specified in the Vishay datasheet revision 2.1. This value defines the upper voltage limit imposed on protected circuitry during standardized surge testing and is measured with junction temperature stabilized at 25 °C prior to pulse application. The BZD27B82P-HE3_A18 maintains this clamping performance across its full operating temperature range due to its controlled temperature coefficient.
Is the BZD27B82P-HE3_A18 qualified for automotive applications?
Yes, the BZD27B82P-HE3_A18 carries AEC-Q101 qualification, confirmed by Vishay's documentation and marked by the "-HE3" suffix denoting RoHS-compliant, AEC-Q101-qualified grade. It passes stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - making it suitable for under-hood and chassis-mounted automotive modules. The BZD27B82P-HE3_A18 also meets JESD201 Class 2 whisker testing and MSL Level 1 reflow compatibility.
What package does the BZD27B82P-HE3_A18 use, and how does it compare to SOD-123W?
The BZD27B82P-HE3_A18 uses the DO-219AB (SMF) package, which Vishay explicitly states is compatible with SOD-123W, SOD-123F, and SOD-123FL outlines. Its dimensions are 2.7 mm × 3.9 mm × 1.08 mm, matching SOD-123W's length and width but with slightly greater height and optimized thermal pad layout. The BZD27B82P-HE3_A18's RthJA of 180 K/W on 3 mm × 3 mm Cu pads reflects this mechanical compatibility while delivering superior surge capability over standard SOD-123W Zeners.
What is the Zener voltage tolerance and test current for the BZD27B82P-HE3_A18?
The BZD27B82P-HE3_A18 has a nominal Zener voltage of 82 V with a guaranteed tolerance of ±2 %, yielding a range of 80.36 V to 83.64 V at the specified test current of 10 mA (IZT1). This tight tolerance is maintained across the full operating temperature range and is verified per AEC-Q101 test conditions. The BZD27B82P-HE3_A18's dynamic impedance of 30 Ω at 10 mA further ensures stable regulation under varying load conditions.
Does the BZD27B82P-HE3_A18 support wave and reflow soldering?
Yes, the BZD27B82P-HE3_A18 is fully compatible with both wave and reflow soldering processes. It meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, eliminating the need for pre-baking. Its DO-219AB package is qualified for lead-free reflow profiles and exhibits no degradation in electrical parameters after standard IPC-J-STD-020-compliant thermal cycling. The BZD27B82P-HE3_A18's construction ensures reliable intermetallic formation and mechanical integrity under repeated thermal stress.
BZD27B82P-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):
- 68V (Max)
- Voltage - Breakdown (Min):
- 80.36V
- Voltage - Clamping (Max) @ Ipp:
- 110V
- Current - Peak Pulse (10/1000µs):
- 1.3A
- 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)
BZD27B82P-HE3_A18 FAQ
1.How can I place an order for BZD27B82P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B82P-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 BZD27B82P-HE3_A18 reliable?
The price and inventory of BZD27B82P-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 BZD27B82P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B82P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B82P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B82P-HE3_A18?
BZD27B82P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B82P-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 BZD27B82P-HE3_A18?
For technical support, including BZD27B82P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B82P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B82P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B82P-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 BZD27B82P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B82P-HE3_A18?
All BZD27B82P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B82P-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 BZD27B82P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B82P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B82P-HE3_A18 Tags
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