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Vishay BZD27B16P-HE3_A18
- Part No.:
- BZD27B16P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B16P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,688
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Product details
Overview
BZD27B16P-HE3_A18 from Vishay Semiconductors is a surface-mount, AEC-Q101 qualified Zener diode with nominal breakdown voltage of 16 V (±2 %), 25 mA test current, 13 V clamping voltage at 5 A surge, 150 W peak surge power rating (10/1000 μs), and DO-219AB (SMF) package for automotive-grade overvoltage protection in power supply rails.
For engineers reviewing the BZD27B16P-HE3_A18 datasheet, BZD27B16P-HE3_A18 pinout, BZD27B16P-HE3_A18 application, or BZD27B16P-HE3_A18 equivalent, key selection criteria include its ±2 % VZ tolerance, 0.06 to 0.11 %/°C temperature coefficient, 150 W surge capability, AEC-Q101 qualification, and SOD-123W-compatible SMF footprint.
Technical Context
This unidirectional Zener diode operates as a precision voltage reference and transient voltage suppressor in DC bias networks and low-energy surge protection circuits. It delivers stable regulation under 25 mA test current and maintains clamping performance up to 5 A peak reverse current per IEC 60-1 (10/1000 μs).
The device features silicon planar construction, low leakage (<1 μA at rated VR), dynamic impedance of 12 Ω at IZT, and thermal resistance of 30 K/W junction-to-lead - enabling high-power pulse handling without external heatsinking when mounted on standard 3 mm × 3 mm Cu pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.68 V min., 16 V nom., 16.32 V max. - tight ±2 % tolerance enables accurate voltage referencing in feedback loops and sensing circuits. |
| Test Current (IZT) | 25 mA - defines operating point for specified VZ and dynamic impedance; suitable for low-power regulator and bias applications. |
| Clamping Voltage (VC) | 21.9 V at 5 A (10/1000 μs) - limits transient overvoltage to safe levels for downstream ICs in automotive ECUs and industrial controllers. |
| Peak Surge Power (PRSM) | 150 W - supports robust ESD and lightning-induced surge suppression per IEC 61000-4-5 Level 3 without derating. |
| Temperature Coefficient (αVZ) | +0.06 to +0.11 %/°C - positive drift ensures predictable VZ increase with junction temperature, simplifying thermal design in engine bay environments. |
| Package | DO-219AB (SMF) - 2.7 × 1.9 mm surface-mount outline compatible with SOD-123W layout, MSL level 1, and 260 °C reflow peak. |
| AEC-Q101 Qualified | Yes - validated for automotive applications including powertrain, body electronics, and ADAS modules requiring zero-defect reliability. |
Pinout & Package
DO-219AB (SMF) package: low-profile, molded plastic case with cathode band marking; dimensions 2.7 mm × 1.9 mm × 0.85 mm; compatible with standard SOD-123W PCB footprints and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node (e.g., ground or return path); enables forward-bias testing and polarity verification. |
| Cathode | Zener breakdown terminal | Marked with band; connected to higher-potential rail to clamp transients; defines orientation in tape-and-reel delivery (cathode toward sprocket holes). |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables precise voltage regulation without post-production trimming in automotive sensor biasing and ADC reference circuits. |
| 150 W peak surge power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1/2/3a surges in 12 V vehicle systems without external TVS cascading. |
| AEC-Q101 qualification | Validated for -65 °C to +175 °C operation and 1000-cycle temperature cycling, supporting under-hood deployment. |
| MSL level 1, 260 °C reflow compatible | Eliminates bake-out requirements and supports single-pass lead-free assembly in high-volume automotive PCB manufacturing. |
| Low dynamic impedance (12 Ω) | Maintains tight regulation under load variation, critical for stable feedback in DC-DC converter error amplifiers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Biasing |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional Zener clamp placed between VCC and ground, conducting only during overvoltage events above 16 V. Use Value: Limits rail voltage to ≤21.9 V during 5 A surges, preventing latch-up and permanent damage to 5 V/3.3 V logic interfaces. |
Use Scenario: Providing stable 16 V reference for analog front-end circuitry in pressure, temperature, and position sensors. IC Role / Device Role / Timing Role: Precision Zener voltage source in constant-current generator or op-amp reference leg. Use Value: ±2 % VZ tolerance and +0.06 %/°C TC ensure <±1.5 % total error across -40 °C to +125 °C ambient range. |
| DC-DC Converter Feedback Divider | ESD-Sensitive Interface Protection |
Use Scenario: Replacing traditional resistor-divider top leg in isolated flyback or buck converter feedback networks. IC Role / Device Role / Timing Role: Zener element setting regulated output voltage by shunting optocoupler LED current at threshold. Use Value: Low 12 Ω dynamic impedance minimizes output voltage drift under line/load transients, improving regulation accuracy to ±1.2 %. |
Use Scenario: Secondary-level protection on USB, CAN, or UART lines exposed to human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Fast-response clamping diode placed after primary TVS, absorbing residual energy below 21.9 V. Use Value: >8 kV HBM ESD rating and 150 W surge capacity prevent gate oxide rupture in protected transceivers and level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Unidirectional TVS diode; 16 V standoff, 25.1 V clamping at 10.1 A; 600 W peak power; larger SMB package. | Higher surge rating but looser voltage control; suited for primary surge suppression, not precision regulation. | Select SMBJ16A when system-level surge immunity (IEC 61000-4-5) dominates over voltage accuracy. |
| BZX84-C16 | SOT-23 Zener; ±5 % VZ tolerance; 10 mA IZT; 300 mW Ptot; no AEC-Q101 or surge rating. | Limited to low-power signal conditioning; unsuitable for automotive or surge-prone environments. | Select BZX84-C16 only for cost-sensitive consumer-grade biasing where ±5 % tolerance and non-automotive qualification are acceptable. |
Compared with SMBJ16A and BZX84-C16, BZD27B16P-HE3_A18 uniquely combines ±2 % voltage precision, 150 W surge capability, AEC-Q101 qualification, and DO-219AB footprint - making it optimal for automotive power rail clamping where both accuracy and ruggedness are required.
Availability
BZD27B16P-HE3_A18 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor conditioning, and DC-DC converter feedback circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZD27B16P-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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and optoelectronics, with emphasis on high-reliability, automotive-qualified components.
The BZD27B Series targets automotive and industrial applications demanding precision voltage regulation and high-energy transient suppression in compact surface-mount packages.
FAQ
What is the Zener voltage tolerance of BZD27B16P-HE3_A18?
The BZD27B16P-HE3_A18 has a Zener voltage tolerance of ±2 %, with a nominal value of 16 V and a guaranteed range of 15.68 V to 16.32 V at 25 °C and 25 mA test current. This tight tolerance is specified per the BZD27B Series data sheet revision 2.1 and supports high-accuracy voltage referencing in automotive and industrial systems where BZD27B16P-HE3_A18 is deployed.
Is BZD27B16P-HE3_A18 qualified for automotive use?
Yes, BZD27B16P-HE3_A18 is AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code. It meets stress test requirements for temperature cycling, humidity bias, and mechanical shock, and is rated for operation from -65 °C to +175 °C junction temperature - confirming its suitability for under-hood and powertrain applications where BZD27B16P-HE3_A18 is commonly used.
What is the clamping voltage of BZD27B16P-HE3_A18 under surge conditions?
The clamping voltage of BZD27B16P-HE3_A18 is 21.9 V at 5 A peak reverse current with a 10/1000 μs waveform, per IEC 60-1. This value is measured under standardized surge conditions and defines the maximum voltage seen by protected circuitry during transient events - a key parameter for ensuring safe operation of downstream components when BZD27B16P-HE3_A18 is applied as a clamp.
Which package does BZD27B16P-HE3_A18 use, and is it compatible with SOD-123W layouts?
BZD27B16P-HE3_A18 uses the DO-219AB (SMF) package, measuring 2.7 mm × 1.9 mm × 0.85 mm. The data sheet explicitly states compatibility with SOD-123W, SOD-123F, and SOD-123FL footprints. This allows drop-in replacement in existing designs using those outlines without PCB redesign - a critical advantage when qualifying BZD27B16P-HE3_A18 into legacy automotive modules.
What is the maximum junction temperature rating for BZD27B16P-HE3_A18?
The maximum junction temperature (TJ) for BZD27B16P-HE3_A18 is 175 °C, as specified in the Absolute Maximum Ratings table. This rating supports continuous operation in high-temperature environments such as engine control units and battery management systems, and aligns with the device's AEC-Q101 qualification scope where BZD27B16P-HE3_A18 must sustain reliability under thermal stress.
BZD27B16P-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):
- 13V (Max)
- Voltage - Breakdown (Min):
- 15.68V
- Voltage - Clamping (Max) @ Ipp:
- 21.9V
- Current - Peak Pulse (10/1000µs):
- 6.6A
- 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)
BZD27B16P-HE3_A18 FAQ
1.How can I place an order for BZD27B16P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B16P-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 BZD27B16P-HE3_A18 reliable?
The price and inventory of BZD27B16P-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 BZD27B16P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B16P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B16P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B16P-HE3_A18?
BZD27B16P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B16P-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 BZD27B16P-HE3_A18?
For technical support, including BZD27B16P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B16P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B16P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B16P-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 BZD27B16P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B16P-HE3_A18?
All BZD27B16P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B16P-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 BZD27B16P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B16P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B16P-HE3_A18 Tags
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