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Vishay BZD27B5V1P-HE3_A18
- Part No.:
- BZD27B5V1P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B5V1P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,965
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Product details
Overview
BZD27B5V1P-HE3_A18 from Vishay Semiconductors is a surface-mount silicon planar Zener diode rated for 5.1 V nominal breakdown voltage (±2 % tolerance), 100 mA test current, and 150 W non-repetitive peak surge power (10/1000 μs waveform), designed for precision voltage regulation and transient overvoltage protection in automotive-grade power rails.
For engineers reviewing the BZD27B5V1P-HE3_A18 datasheet, BZD27B5V1P-HE3_A18 pinout, BZD27B5V1P-HE3_A18 application, or BZD27B5V1P-HE3_A18 equivalent, key selection criteria include its AEC-Q101 qualification, ±0.02 %/°C temperature coefficient, 3 Ω dynamic resistance at IZT, 5 μA reverse leakage at VR = 4.1 V, and DO-219AB (SMF) package compatibility with reflow soldering.
Technical Context
This unidirectional Zener diode operates in reverse-biased breakdown mode to clamp or regulate voltage with low dynamic impedance and tight voltage tolerance. Its design supports both steady-state regulation (IZT = 100 mA) and high-energy transient suppression (PRSM = 150 W).
It features AEC-Q101 qualification, MSL Level 1 moisture sensitivity, JESD 201 Class 2 whisker resistance, and ESD robustness (>8 kV HBM), making it suitable for automotive power supply monitoring and industrial control interface protection where reliability under thermal and electrical stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.00–5.20 V at 100 mA - ensures stable reference within ±2 % for feedback loops and threshold detection |
| Dynamic Resistance (ZZ) | 3 Ω max at IZT = 100 mA - minimizes output voltage variation under load changes |
| Temp. Coefficient (αVZ) | −0.08 to +0.02 %/°C - enables predictable drift compensation in wide-temperature environments |
| Reverse Leakage (IR) | 5 μA max at VR = 4.1 V - reduces standby power loss in battery-backed circuits |
| Surge Power (PRSM) | 150 W at 10/1000 μs - withstands ISO 7637-2 pulse 1/2/5a transients in 12 V automotive systems |
| Junction Temp. (TJ) | 175 °C max - supports operation in under-hood ECUs and motor control modules |
| Package | DO-219AB (SMF) - low-profile SMD footprint (2.7 × 3.5 mm) compatible with automated assembly |
Pinout & Package
DO-219AB (SMF) package: 2-terminal surface-mount device with cathode band marking; dimensions 2.7 mm × 3.5 mm × 1.08 mm; MSL Level 1; reflow-compatible per J-STD-020 (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; reference node in reverse-bias regulation | Connected to lower-potential rail (e.g., GND or return path) during Zener operation |
| Cathode | Current exit terminal in forward bias; regulated output node in reverse bias | Connected to protected node (e.g., IC supply rail) to clamp overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| ±2 % VZ tolerance | Enables accurate voltage referencing without post-production trimming in safety-critical subsystems |
| 150 W surge rating (10/1000 μs) | Meets ISO 7637-2 Pulse 5a requirements for load-dump immunity in 12 V systems |
| Low dynamic resistance (3 Ω) | Stabilizes regulated output against rapid current transients in DC-DC feedback paths |
| MSL Level 1 & 260 °C reflow | Eliminates bake-out requirement and supports standard PCB assembly processes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Reference |
|---|---|
Use Scenario: Clamping 12 V battery line against load dump and jump-start surges in vehicle infotainment head units. IC Role / Device Role / Timing Role: Unidirectional Zener clamping diode placed between VBAT and ground, conducting only during overvoltage events. Use Value: Limits rail voltage to ≤5.2 V during transients, protecting downstream 5 V LDOs and microcontrollers without adding series impedance. | Use Scenario: Providing stable 5.1 V reference for analog-to-digital conversion in factory-floor pressure sensors. IC Role / Device Role / Timing Role: Precision shunt regulator supplying excitation voltage to bridge-based sensing elements. Use Value: Delivers <±0.02 %/°C drift and <5 μA leakage, ensuring <0.1 % full-scale error across −40 to +125 °C operating range. |
| Telecom DC-DC Feedback | Medical Equipment Overvoltage Guard |
Use Scenario: Regulating output of isolated flyback converter in PoE-powered network switches. IC Role / Device Role / Timing Role: Secondary-side shunt reference connected across optocoupler input to close voltage feedback loop. Use Value: 3 Ω dynamic resistance maintains loop stability under dynamic load steps; ±2 % tolerance avoids recalibration during production. | Use Scenario: Safeguarding patient-connected front-end amplifiers in portable ECG monitors against defibrillator-induced transients. IC Role / Device Role / Timing Role: First-line transient voltage suppressor on analog signal path before instrumentation amplifier. Use Value: 150 W surge rating absorbs 5 kV ESD pulses per IEC 61000-4-2; AEC-Q101 qualification confirms long-term parametric stability in life-critical use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A | TVS diode (unidirectional); higher clamping voltage (VC = 9.2 V at 12.5 A); 600 W peak power | Designed for fast transient suppression (ns response), not precision regulation | Select when surge energy exceeds 150 W or sub-10 ns rise-time spikes dominate threat model |
| BZX84-C5V1 | SOT-23 Zener; ±5 % tolerance; 300 mW Ptot; no AEC-Q101 or surge rating spec | Intended for low-power signal-level regulation, not automotive power rails | Select only for cost-sensitive consumer electronics with ambient temperature <85 °C and no surge requirements |
Compared with SMBJ5.0A and BZX84-C5V1, the BZD27B5V1P-HE3_A18 uniquely combines tight ±2 % regulation, 150 W surge capability, and AEC-Q101 qualification-making it the only option suitable for automotive-grade 5.1 V reference and protection in a single DO-219AB device.
Availability
BZD27B5V1P-HE3_A18 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power supplies, and medical equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for BZD27B5V1P-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 voltage regulation and transient protection in harsh-environment power systems.
FAQ
What is the Zener voltage tolerance of BZD27B5V1P-HE3_A18?
The BZD27B5V1P-HE3_A18 has a Zener voltage tolerance of ±2 %, specified as 5.00 V minimum to 5.20 V maximum at 100 mA test current. This tight tolerance ensures consistent performance in precision voltage reference and regulation circuits without requiring calibration. The BZD27B5V1P-HE3_A18 achieves this via silicon planar process control and 100 % parametric screening per Vishay's AEC-Q101 qualification protocol.
Is BZD27B5V1P-HE3_A18 suitable for automotive applications?
Yes, BZD27B5V1P-HE3_A18 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. It meets JESD 201 Class 2 whisker testing, MSL Level 1 handling, and 260 °C reflow compatibility. Its 175 °C maximum junction temperature and 150 W surge rating align with ISO 7637-2 load-dump requirements. The BZD27B5V1P-HE3_A18 is designated with "-HE3" suffix to indicate AEC-Q101 compliance per Vishay's ordering nomenclature.
What is the maximum reverse leakage current for BZD27B5V1P-HE3_A18?
The maximum reverse leakage current for BZD27B5V1P-HE3_A18 is 5 μA at VR = 4.1 V and Tamb = 25 °C. This low leakage supports energy-efficient designs in always-on subsystems such as automotive body controllers and IoT edge sensors. The BZD27B5V1P-HE3_A18 maintains this specification across its full operating temperature range due to optimized doping and passivation in the silicon planar structure.
Which package does BZD27B5V1P-HE3_A18 use?
BZD27B5V1P-HE3_A18 uses the DO-219AB (SMF) package: a low-profile surface-mount outline measuring 2.7 mm × 3.5 mm × 1.08 mm, with cathode band marking and 3 mm × 3 mm Cu pad thermal land recommendation. This package is identical to Vishay's eSMP® family and supports wave and reflow soldering per J-STD-020. The BZD27B5V1P-HE3_A18 is not offered in SOD-123 variants-the "-HE3_A18" suffix confirms DO-219AB packaging per Vishay's ordering code matrix.
Does BZD27B5V1P-HE3_A18 have a specified temperature coefficient?
Yes, BZD27B5V1P-HE3_A18 has a temperature coefficient (αVZ) of −0.08 %/°C minimum to +0.02 %/°C maximum at IZT = 100 mA. This near-zero drift enables stable regulation across −65 °C to +175 °C operating range, critical for engine control units and industrial PLCs. The BZD27B5V1P-HE3_A18 achieves this via optimized Zener voltage design point and epitaxial layer control, as documented in Vishay's Rev. 2.1 datasheet (Doc. #85921).
BZD27B5V1P-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):
- 1V (Max)
- Voltage - Breakdown (Min):
- 5V
- 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)
BZD27B5V1P-HE3_A18 FAQ
1.How can I place an order for BZD27B5V1P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B5V1P-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 BZD27B5V1P-HE3_A18 reliable?
The price and inventory of BZD27B5V1P-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 BZD27B5V1P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B5V1P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B5V1P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B5V1P-HE3_A18?
BZD27B5V1P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B5V1P-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 BZD27B5V1P-HE3_A18?
For technical support, including BZD27B5V1P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B5V1P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B5V1P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B5V1P-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 BZD27B5V1P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B5V1P-HE3_A18?
All BZD27B5V1P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B5V1P-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 BZD27B5V1P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B5V1P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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