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Vishay BZD27B36P-HE3_A08
- Part No.:
- BZD27B36P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B36P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,695
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Product details
Overview
BZD27B36P-HE3_A08 from Vishay Semiconductors is a surface-mount silicon planar Zener diode rated for 36 V nominal breakdown voltage (±2 % tolerance), 10 mA test current, and 150 W non-repetitive peak surge power (10/1000 μs waveform), designed for overvoltage protection in automotive power rails and industrial DC supply monitoring circuits.
For engineers reviewing the BZD27B36P-HE3_A08 datasheet, BZD27B36P-HE3_A08 pinout, BZD27B36P-HE3_A08 application, or BZD27B36P-HE3_A08 equivalent, key selection criteria include its AEC-Q101 qualification, low dynamic resistance (27 Ω at 10 mA), temperature coefficient (+0.06 to +0.11 %/°C), and DO-219AB (SMF) package compatibility with high-density PCB layouts.
Technical Context
This unidirectional Zener diode operates as a precision voltage reference and transient voltage suppressor in clamping configurations. It delivers stable regulation under DC bias and robust surge handling per IEC 60-1 (10/1000 μs), with clamping voltage VC = 48.4 V at IRSM = 3 A.
Its thermal design supports junction temperatures up to 175 °C, enabled by RthJA = 180 K/W on 3 mm × 3 mm Cu pads and RthJL = 30 K/W, while meeting MSL level 1 (260 °C peak reflow) and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 35.28 V min. / 36 V nom. / 36.72 V max. - tight ±2 % tolerance enables accurate voltage thresholding in safety-critical monitoring |
| Test Current | 10 mA - defines operating point for specified VZ and dynamic resistance |
| Dynamic Resistance | 27 Ω max. at 10 mA - ensures minimal voltage deviation under load variation |
| Clamping Voltage | 48.4 V at 3 A (10/1000 μs) - limits transient overvoltage to safe levels during surge events |
| Surge Power Rating | 150 W (10/1000 μs) - sustains high-energy transients without failure in automotive load-dump scenarios |
| Temperature Coefficient | +0.06 to +0.11 %/°C - positive drift allows predictable voltage shift across -65 to +175 °C operating range |
| Package | DO-219AB (SMF) - low-profile SMD footprint (2.7 × 1.2 × 0.8 mm) compatible with automated assembly and space-constrained designs |
Pinout & Package
DO-219AB (SMF) package: 2-terminal surface-mount device with cathode band marking; dimensions 2.7 mm × 1.2 mm × 0.8 mm; MSL level 1; RoHS-compliant; AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under forward bias | Connected to lower-potential node in clamping configuration; VF ≤ 1.2 V at 0.2 A ensures low forward loss |
| Cathode | Zener breakdown terminal | Connected to higher-potential node; defines regulated voltage reference point and surge current path to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring reliability under thermal cycling and vibration |
| Low-profile SMF package | Enables placement adjacent to ICs and connectors in compact ECUs without height interference or solder bridging risk |
| 150 W surge rating (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a load-dump transients in 12 V systems without derating or external series impedance |
| MSL Level 1 rating | Allows single-pass reflow at 260 °C peak without baking, reducing manufacturing complexity and cost |
| ±2 % VZ tolerance | Eliminates need for post-assembly calibration in voltage-monitoring circuits for battery management and power sequencing |
Applications
| Automotive Power Rail Protection | Industrial DC Supply Monitoring |
|---|---|
Use Scenario: Protecting microcontroller I/O and sensor interfaces from load-dump transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional Zener clamp connected between supply rail and ground, conducting only during overvoltage events. Use Value: Limits voltage to ≤48.4 V during 10/1000 μs surges, preventing latch-up or permanent damage to downstream logic devices. | Use Scenario: Monitoring output stability of switch-mode power supplies in programmable logic controllers. IC Role / Device Role / Timing Role: Precision voltage reference element in comparator-based overvoltage detection circuitry. Use Value: ±2 % VZ tolerance and +0.06 %/°C TC ensure trip-point accuracy remains within 0.7 V over -40 to +125 °C ambient range. |
| Telecom Line Interface Protection | Renewable Energy Charge Controller |
Use Scenario: Safeguarding Ethernet PHY transceivers against induced surges on PoE-powered equipment. IC Role / Device Role / Timing Role: Secondary clamping device placed after primary TVS, absorbing residual energy below 50 V threshold. Use Value: 27 Ω dynamic resistance minimizes clamping overshoot during fast-rising transients, preserving signal integrity. | Use Scenario: Regulating gate drive voltage for MOSFETs in solar charge controllers operating in desert environments. IC Role / Device Role / Timing Role: Stable voltage reference for analog feedback loop controlling buck converter duty cycle. Use Value: 175 °C max. junction temperature and +0.11 %/°C TC allow reliable operation at sustained 85 °C board temperature without drift-induced regulation error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/52 | TVS diode (not Zener); 36 V standoff, 58.1 V clamping at 10.3 A; 600 W peak power | Designed for faster transient suppression (sub-nanosecond response); less precise DC regulation | Select when surge energy exceeds 150 W or sub-100 ns rise time protection is required; not suitable as voltage reference |
| BZX84-C36LT1G | SOT-23 Zener; 36 V nominal, ±5 % tolerance; 300 mW power; 50 Ω dynamic resistance | Limited to low-power signal-level protection; no AEC-Q101 or surge rating | Select for cost-sensitive consumer electronics where automotive qualification and 150 W surge immunity are unnecessary |
Compared with SMBJ36A-E3/52 and BZX84-C36LT1G, the BZD27B36P-HE3_A08 uniquely balances precision DC regulation (±2 %, 27 Ω), high-energy surge handling (150 W), and automotive qualification-making it optimal for safety-critical power rail supervision where both accuracy and ruggedness are mandatory.
Availability
BZD27B36P-HE3_A08 is available at Aetrix Electronics and suitable for automotive ECU design, industrial power supply validation, and renewable energy system prototyping requiring stable component supply and long-term lifecycle support.
Supply support for BZD27B36P-HE3_A08 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 power systems where precision, surge resilience, and long-term stability are non-negotiable.
FAQ
What is the maximum clamping voltage of the BZD27B36P-HE3_A08 during a 10/1000 μs surge event?
The BZD27B36P-HE3_A08 exhibits a maximum clamping voltage (VC) of 48.4 V at a peak reverse current (IRSM) of 3 A under 10/1000 μs waveform conditions, as specified in the Vishay datasheet revision 2.1. This value ensures effective suppression of load-dump transients while maintaining safe margin below typical 50 V IC absolute maximum ratings. The BZD27B36P-HE3_A08 achieves this performance with minimal overshoot due to its 27 Ω dynamic resistance at 10 mA test current.
Is the BZD27B36P-HE3_A08 qualified for automotive applications?
Yes, the BZD27B36P-HE3_A08 is explicitly AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code and confirmed in Vishay's documentation. It meets JESD 201 Class 2 whisker testing, MSL level 1 reflow requirements (260 °C peak), and has demonstrated reliability across temperature cycling, humidity, and mechanical shock profiles defined for automotive under-hood and cabin modules. The BZD27B36P-HE3_A08 is routinely deployed in engine control units and ADAS power domains.
What package type does the BZD27B36P-HE3_A08 use, and what are its key mechanical dimensions?
The BZD27B36P-HE3_A08 uses the DO-219AB (SMF) surface-mount package, measuring 2.7 mm × 1.2 mm × 0.8 mm with a cathode band marking. Its footprint requires 1.3 mm × 1.3 mm pad area per terminal and supports wave and reflow soldering. The BZD27B36P-HE3_A08's low profile and MSL level 1 rating enable direct integration into high-density automotive PCBs without thermal or placement constraints.
How does the temperature coefficient of the BZD27B36P-HE3_A08 affect its regulation accuracy over temperature?
The BZD27B36P-HE3_A08 has a specified temperature coefficient (αVZ) of +0.06 to +0.11 %/°C, meaning its nominal 36 V Zener voltage increases predictably with junction temperature. Over a -40 to +125 °C ambient range (assuming typical thermal resistance), the total VZ shift remains within ±0.43 V - well within most system tolerances. This stable positive drift makes the BZD27B36P-HE3_A08 suitable for applications where monotonic, known voltage change is preferable to unpredictable drift. The BZD27B36P-HE3_A08 maintains regulation integrity without external compensation.
Can the BZD27B36P-HE3_A08 be used as a voltage reference in precision analog circuits?
The BZD27B36P-HE3_A08 is optimized for protection rather than precision reference use: its ±2 % VZ tolerance, 27 Ω dynamic resistance, and +0.06 to +0.11 %/°C TC limit accuracy compared to dedicated reference ICs. However, in cost-sensitive industrial monitoring circuits where 0.7 V total drift over temperature is acceptable - such as DC bus overvoltage detection - the BZD27B36P-HE3_A08 provides adequate stability without additional components. For sub-0.1 % accuracy, a bandgap reference remains preferred, but the BZD27B36P-HE3_A08 delivers robust, integrated functionality where protection and coarse regulation coexist.
BZD27B36P-HE3_A08 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):
- 30V (Max)
- Voltage - Breakdown (Min):
- 35.28V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 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)
BZD27B36P-HE3_A08 FAQ
1.How can I place an order for BZD27B36P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B36P-HE3_A08 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 BZD27B36P-HE3_A08 reliable?
The price and inventory of BZD27B36P-HE3_A08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27B36P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B36P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B36P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B36P-HE3_A08?
BZD27B36P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B36P-HE3_A08 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 BZD27B36P-HE3_A08?
For technical support, including BZD27B36P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B36P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B36P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B36P-HE3_A08 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 BZD27B36P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B36P-HE3_A08?
All BZD27B36P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B36P-HE3_A08, 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 BZD27B36P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B36P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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