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Vishay BZD27B5V6P-HE3_A18
- Part No.:
- BZD27B5V6P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B5V6P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,681
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Product details
Overview
BZD27B5V6P-HE3_A18 from Vishay Semiconductors is a surface-mount silicon planar Zener diode rated for 5.6 V nominal breakdown voltage (±2 % tolerance), 100 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 BZD27B5V6P-HE3_A18 datasheet, BZD27B5V6P-HE3_A18 pinout, BZD27B5V6P-HE3_A18 application, or BZD27B5V6P-HE3_A18 equivalent, key selection criteria include its AEC-Q101 qualification, ±0.04 %/°C temperature coefficient, 2 Ω dynamic resistance at IZT, 10 μA reverse leakage at 4.5 V, and DO-219AB (SMF) package compatibility with reflow soldering.
Technical Context
This unidirectional Zener diode operates as a precision voltage reference and transient voltage suppressor in clamping configurations. Its design integrates low-profile SOD-123W-compatible packaging with MSL Level 1 moisture sensitivity and JESD 201 Class 2 whisker resistance-enabling high-reliability deployment in automotive ECUs and industrial controllers.
Electrical behavior is defined by tight 5.49–5.71 V Zener voltage range at 100 mA, 2 V clamping voltage at 13.3 A peak surge current (10/1000 μs), and thermal resistance of 30 K/W junction-to-lead-supporting stable regulation under pulsed load conditions without derating below 105 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.49–5.71 V at 100 mA - ensures ±2 % regulation accuracy for 5.6 V reference designs |
| Dynamic Resistance (ZZ) | 2 Ω at IZT = 100 mA - minimizes output voltage deviation under varying load currents |
| Reverse Leakage (IR) | 10 μA max at VR = 4.5 V - reduces standby power loss in always-on protection circuits |
| Clamping Voltage (VC) | 13.3 V at IRSM = 13.3 A (10/1000 μs) - limits transient overvoltage to safe levels for downstream ICs |
| Surge Power (PRSM) | 150 W (10/1000 μs) - withstands ISO 7637-2 Pulse 1/2a/2b/3a/3b transients in 12 V automotive systems |
| Temperature Coefficient (αVZ) | −0.04 to +0.04 %/°C - enables stable voltage reference across −65 to +175 °C operating range |
| Package | DO-219AB (SMF) - 2.7 × 1.2 mm footprint with 0.85 mm height, compatible with standard SMT assembly |
Pinout & Package
DO-219AB (SMF) package: low-profile surface-mount case with cathode band marking; dimensions 2.7 mm × 1.2 mm × 0.85 mm; MSL Level 1, peak reflow temperature 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward bias | Connected to lower-potential node in clamping configuration; supports 0.2 A forward current (VF ≤ 1.2 V) |
| Cathode | Current exit terminal during forward bias; Zener breakdown terminal | Connected to higher-potential node; defines regulated voltage reference point in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications per stress test requirements including HTGB, HTRB, and TCT |
| Low-profile DO-219AB package | Enables high-density PCB layouts in space-constrained engine control modules and ADAS sensors |
| 150 W surge rating (10/1000 μs) | Meets ISO 7637-2 immunity requirements for 12 V vehicle electrical systems |
| ±2 % VZ tolerance | Reduces need for post-assembly trimming in precision voltage monitor circuits |
| MSL Level 1 handling | Eliminates bake-out requirement prior to reflow, lowering manufacturing cost and cycle time |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Suppressing load dump and alternator ripple on 12 V battery-fed microcontroller power supplies in body control modules. IC Role / Device Role / Timing Role: Shunt-clamping transient voltage suppressor placed between VCC and GND, triggered above 13.3 V. Use Value: Prevents MCU brownout or latch-up during ISO 7637-2 Pulse 5a events while maintaining <10 μA quiescent leakage. | Use Scenario: Stabilizing reference voltage for 24-bit sigma-delta ADCs measuring thermocouple outputs in PLC analog input modules. IC Role / Device Role / Timing Role: Precision Zener voltage reference providing 5.6 V ±2 % to ADC voltage reference pin. Use Value: Enables <0.01 % full-scale error contribution from reference drift over −40 to +85 °C ambient. |
| DC-DC Converter Feedback Clamp | Overvoltage Detection in Battery Management |
Use Scenario: Clamping feedback node of isolated flyback controller to prevent false regulation during startup overshoot. IC Role / Device Role / Timing Role: Fast-response Zener clamp limiting optocoupler LED drive voltage to protect secondary-side controller. Use Value: Limits feedback voltage excursion to ≤13.3 V within 100 ns, avoiding controller shutdown during 500 ms soft-start phase. | Use Scenario: Detecting cell overvoltage in 4S Li-ion battery packs used in cordless power tools. IC Role / Device Role / Timing Role: Threshold detector element in discrete comparator circuit triggering discharge FET gate control. Use Value: Provides repeatable 5.6 V trip point with <0.1 V hysteresis via series resistor, independent of supply voltage variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A | TVS diode with 5.0 V standoff, 13.4 V clamping at 10.3 A; higher capacitance (150 pF) | Designed for fast ESD/EMI suppression rather than precision regulation | Select when surge speed (<1 ns response) matters more than voltage accuracy |
| BZX84-C5V6 | SOT-23 package; ±5 % VZ tolerance; 500 mW Ptot; no AEC-Q101 qualification | Lower surge capability (100 W); unsuitable for automotive under-hood environments | Select for cost-sensitive consumer electronics where AEC-Q101 and 150 W surge are not required |
Compared with SMBJ5.0A and BZX84-C5V6, the BZD27B5V6P-HE3_A18 delivers tighter voltage tolerance, higher surge robustness, and automotive-grade reliability-making it optimal for safety-critical 12 V rail protection where both precision and ruggedness are mandatory.
Availability
BZD27B5V6P-HE3_A18 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, and battery protection systems requiring stable component supply with guaranteed long-term continuity.
Supply support for BZD27B5V6P-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 and industrial power systems.
FAQ
What is the Zener voltage tolerance of BZD27B5V6P-HE3_A18?
The BZD27B5V6P-HE3_A18 has a nominal Zener voltage of 5.6 V with a guaranteed tolerance of ±2 %, corresponding to a minimum of 5.49 V and maximum of 5.71 V at 100 mA test current. This tight tolerance is specified per the BZD27B Series datasheet Rev. 2.1 and enables precise voltage regulation without external calibration. The BZD27B5V6P-HE3_A18 achieves this consistency through silicon planar process control and 100 % parametric screening.
Is BZD27B5V6P-HE3_A18 qualified for automotive applications?
Yes, the BZD27B5V6P-HE3_A18 is AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code. It meets all stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), and is rated for operation from −65 °C to +175 °C. The BZD27B5V6P-HE3_A18 is intended for under-hood and chassis-mounted automotive modules where reliability under thermal and mechanical stress is critical.
What package does BZD27B5V6P-HE3_A18 use, and is it RoHS-compliant?
The BZD27B5V6P-HE3_A18 uses the DO-219AB (SMF) surface-mount package-measuring 2.7 mm × 1.2 mm × 0.85 mm-with cathode band marking and MSL Level 1 rating. It is RoHS-compliant per EU Directive 2011/65/EU, confirmed by the "-HE3" suffix denoting Vishay's RoHS-compliant, AEC-Q101-qualified variant. The BZD27B5V6P-HE3_A18's molding compound meets UL 94 V-0 flammability standards.
What is the maximum clamping voltage of BZD27B5V6P-HE3_A18 during surge events?
The BZD27B5V6P-HE3_A18 has a maximum clamping voltage (VC) of 13.3 V at a peak surge current (IRSM) of 13.3 A under the 10/1000 μs waveform, per IEC 61000-4-5. This value is measured at TJ = 25 °C and defines the upper voltage limit imposed on protected circuits during transients. The BZD27B5V6P-HE3_A18 maintains this clamping performance across its full operating temperature range due to its low αVZ.
Can BZD27B5V6P-HE3_A18 be used in place of a standard 5.6 V Zener for voltage reference?
Yes, the BZD27B5V6P-HE3_A18 is suitable as a precision voltage reference due to its ±2 % VZ tolerance, low dynamic resistance (2 Ω), and stable temperature coefficient (−0.04 to +0.04 %/°C). Unlike general-purpose Zeners, the BZD27B5V6P-HE3_A18 offers AEC-Q101 qualification and 150 W surge capability-making it ideal for reference applications in automotive and industrial environments where long-term stability and fault resilience are required. The BZD27B5V6P-HE3_A18 also exhibits <10 μA leakage at 4.5 V, minimizing reference current error.
BZD27B5V6P-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):
- 2V (Max)
- Voltage - Breakdown (Min):
- 5.49V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- 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)
BZD27B5V6P-HE3_A18 FAQ
1.How can I place an order for BZD27B5V6P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B5V6P-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 BZD27B5V6P-HE3_A18 reliable?
The price and inventory of BZD27B5V6P-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 BZD27B5V6P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B5V6P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B5V6P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B5V6P-HE3_A18?
BZD27B5V6P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B5V6P-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 BZD27B5V6P-HE3_A18?
For technical support, including BZD27B5V6P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B5V6P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B5V6P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B5V6P-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 BZD27B5V6P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B5V6P-HE3_A18?
All BZD27B5V6P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B5V6P-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 BZD27B5V6P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B5V6P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B5V6P-HE3_A18 Tags
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