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Vishay BZD27B15P-HE3_A08
- Part No.:
- BZD27B15P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B15P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,575
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Product details
Overview
BZD27B15P-HE3_A08 from Vishay Semiconductors is a surface-mount silicon planar Zener diode rated for 15 V nominal Zener voltage (14.7–15.3 V), 50 mA test current, and 150 W non-repetitive peak surge power (10/1000 μs). It features ±2 % voltage tolerance, low dynamic resistance (11 Ω typ.), and AEC-Q101 qualification for automotive-grade reliability in overvoltage protection circuits.
For engineers reviewing the BZD27B15P-HE3_A08 datasheet, BZD27B15P-HE3_A08 pinout, BZD27B15P-HE3_A08 application, or BZD27B15P-HE3_A08 equivalent, key selection criteria include its 15 V clamping voltage at 7.2 A surge current, -65 °C to +175 °C operating range, SOD-123W-compatible SMF (DO-219AB) package, and MSL level 1 moisture sensitivity rating.
Technical Context
This unidirectional Zener diode operates as a precision voltage reference and transient voltage suppressor in DC power rails and signal lines. Its design integrates low leakage current (<5 μA at VR = 12 V), stable temperature coefficient (+0.05 to +0.1 %/°C), and robust surge handling per IEC 60-1 (10/1000 μs waveform).
The device uses a silicon planar junction structure with metallization optimized for wave and reflow soldering. It meets JESD 201 Class 2 whisker testing and delivers 20.5 V clamping voltage at 7.2 A peak reverse current, enabling reliable protection of downstream ICs against ESD and load-dump transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.7–15.3 V at 50 mA - tight ±2 % tolerance ensures accurate voltage regulation in feedback loops and reference circuits |
| Clamping Voltage (VC) | 20.5 V at IRSM = 7.2 A - defines maximum voltage seen by protected circuit during 10/1000 μs surge |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs) - supports automotive load-dump and ISO 7637-2 pulse suppression without failure |
| Dynamic Resistance (ZZ) | 11 Ω typical at 50 mA - low impedance maintains stable regulation under varying load currents |
| Operating Temperature | -65 °C to +175 °C - enables deployment in engine control units, under-hood modules, and industrial power supplies |
| ESD Rating | HBM > 8 kV, MM > 800 V - exceeds AEC-Q101 requirements for robustness against handling and system-level ESD events |
| Package | SMF (DO-219AB) - low-profile 2.7 × 3.9 mm surface-mount outline compatible with automated assembly and high-density PCB layouts |
Pinout & Package
SMF (DO-219AB) package: 2-terminal, cathode-marked surface-mount device with 2.7 mm width, 3.9 mm length, and 1.08 mm height. Optimized for reflow soldering with peak temperature up to 260 °C and MSL level 1 handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential node; forward voltage ≤1.2 V at 0.2 A enables use in polarity protection |
| Cathode | Zener breakdown terminal | Marked end; connected to higher-potential rail to clamp overvoltage; defines orientation in tape and on PCB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Surge-rated construction | Withstands 150 W (10/1000 μs) and 300 W (100 μs square) pulses without parametric shift or failure |
| Low-profile SMF package | 0.88 mm max thickness enables use in space-constrained modules and stacked PCB assemblies |
| Stable temperature coefficient | +0.05 to +0.1 %/°C minimizes drift across automotive temperature ranges, improving long-term accuracy |
| MSL level 1 rating | Unlimited floor life before reflow; eliminates bake requirements and simplifies manufacturing logistics |
Applications
| Automotive Load-Dump Protection | Industrial Sensor Signal Clamping |
|---|---|
Use Scenario: Protects microcontroller I/O pins and analog front-ends from 12 V/24 V battery line transients during alternator load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional shunt clamping device placed between supply rail and ground, conducting only during overvoltage events. Use Value: Limits voltage to 20.5 V at 7.2 A, preventing latch-up or permanent damage to 3.3 V/5 V logic and ADC inputs. | Use Scenario: Safeguards 4–20 mA current loop receivers and RS-485 transceivers from induced surges in factory automation wiring. IC Role / Device Role / Timing Role: Standby-mode voltage clamp on signal lines, activated only when common-mode voltage exceeds 15 V threshold. Use Value: Maintains signal integrity with <5 μA leakage at 12 V, avoiding offset errors in precision current measurement circuits. |
| Power Supply Overvoltage Crowbar | USB Port ESD Suppression |
Use Scenario: Triggers SCR-based crowbar circuit in 15 V DC-DC converter output stage when input surge exceeds safe margin. IC Role / Device Role / Timing Role: Precision voltage reference element that initiates fast-acting shutdown via comparator feedback. Use Value: ±2 % VZ tolerance ensures consistent trip point across production lots, reducing calibration overhead. | Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 ports in automotive infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance (typ. 25 pF at 0 V) shunt device placed between VBUS and GND, absorbing HBM/CDM events. Use Value: Withstands >8 kV HBM per AEC-Q101, extending system-level ESD immunity beyond USB-IF compliance limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | TVS diode with 15 V standoff, 24.4 V clamping at 12.9 A; higher surge capacity (600 W) but looser voltage tolerance (±5 %) | Designed for higher-energy transients; less suitable for precision regulation due to wider VBR spread | Select when primary need is high-energy surge absorption rather than tight voltage reference stability |
| BZX84-C15 | SOT-23 Zener with 15 V nominal, ±5 % tolerance, 300 mW PD; no AEC-Q101 qualification or surge rating | Intended for low-power signal conditioning, not automotive or industrial surge environments | Choose only for cost-sensitive consumer electronics where AEC-Q101 and 150 W surge capability are unnecessary |
Compared with SMBJ15A and BZX84-C15, BZD27B15P-HE3_A08 uniquely combines AEC-Q101 qualification, ±2 % VZ tolerance, and 150 W surge rating in a low-profile SMF package-making it optimal for automotive power rail protection where precision, reliability, and space constraints coexist.
Availability
BZD27B15P-HE3_A08 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and sensor interface circuits requiring stable component supply, AEC-Q101 compliance, and high-surge resilience.
Supply support for BZD27B15P-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 high-surge, high-temperature automotive and industrial applications demanding AEC-Q101 qualification and tight voltage tolerances.
FAQ
What is the Zener voltage tolerance of BZD27B15P-HE3_A08?
BZD27B15P-HE3_A08 has a nominal Zener voltage of 15 V with a guaranteed range of 14.7 V to 15.3 V at 50 mA test current, corresponding to ±2 % tolerance per the BZD27B Series specification. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of Vishay document 85921 and applies specifically to the BZD27B15P variant within the HE3-A08 ordering code family.
Is BZD27B15P-HE3_A08 qualified for automotive applications?
Yes, BZD27B15P-HE3_A08 is AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code and explicitly stated in the FEATURES section of the Vishay datasheet (Rev. 2.1, Dec. 2022). It meets JESD 201 Class 2 whisker testing, MSL level 1, and ESD ratings (>8 kV HBM), making it suitable for under-hood and chassis-mounted automotive systems.
What is the clamping voltage of BZD27B15P-HE3_A08 under surge conditions?
The clamping voltage (VC) of BZD27B15P-HE3_A08 is 20.5 V at a peak reverse surge current (IRSM) of 7.2 A, measured using the 10/1000 μs waveform per IEC 60-1. This value is specified in the second Electrical Characteristics table (page 3) of the Vishay BZD27B datasheet and defines the maximum voltage imposed on protected circuitry during standardized surge events.
Which package does BZD27B15P-HE3_A08 use, and is it compatible with standard SOD-123 footprints?
BZD27B15P-HE3_A08 uses the SMF (DO-219AB) package - a low-profile 2.7 × 3.9 mm surface-mount outline with 1.08 mm height. While functionally compatible with SOD-123W, SOD-123F, and SOD-123FL outlines per Vishay's documentation, its mechanical dimensions differ slightly; the recommended footprint is provided in Figure 5 (page 5) of document 85921 and must be used for reliable solder joint formation.
Does BZD27B15P-HE3_A08 have a specified junction-to-ambient thermal resistance?
Yes, BZD27B15P-HE3_A08 has a junction-to-ambient thermal resistance (RthJA) of 180 K/W when mounted on an epoxy-glass PCB with 3 mm × 3 mm copper pads ≥40 μm thick, as specified in the Absolute Maximum Ratings table (page 1). This value is critical for calculating maximum allowable power dissipation at elevated ambient temperatures in thermally constrained designs.
BZD27B15P-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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 14.7V
- Voltage - Clamping (Max) @ Ipp:
- 20.5V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- 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)
BZD27B15P-HE3_A08 FAQ
1.How can I place an order for BZD27B15P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B15P-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 BZD27B15P-HE3_A08 reliable?
The price and inventory of BZD27B15P-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 BZD27B15P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B15P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B15P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B15P-HE3_A08?
BZD27B15P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B15P-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 BZD27B15P-HE3_A08?
For technical support, including BZD27B15P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B15P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B15P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B15P-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 BZD27B15P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B15P-HE3_A08?
All BZD27B15P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B15P-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 BZD27B15P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B15P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B15P-HE3_A08 Tags
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