Vishay BZD27B110P-HE3_A08
- Part No.:
- BZD27B110P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B110P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:

- Shipping:

Inventory:4,935
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Product details
Overview
BZD27B110P-HE3_A08 from Vishay Semiconductors is a 110 V, ±2 % tolerance AEC-Q101 qualified Zener diode in DO-219AB (SMF) package, rated for 150 W non-repetitive peak surge power and 82 Ω dynamic resistance at 5 mA test current, used for overvoltage protection in automotive power supply rails.
For engineers reviewing the BZD27B110P-HE3_A08 datasheet, BZD27B110P-HE3_A08 pinout, BZD27B110P-HE3_A08 application, or BZD27B110P-HE3_A08 equivalent, key selection criteria include its 110 V nominal Zener voltage, 145 V clamping voltage at 1 A, -65 °C to +175 °C operating range, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This unidirectional silicon planar Zener diode operates as a precision voltage reference and transient voltage suppressor. It delivers stable regulation with 0.09 %/°C temperature coefficient and 1 μA reverse leakage at 91 V, meeting JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility.
Designed for high-energy surge suppression, it sustains 150 W peak power (10/1000 μs waveform) and 300 W (100 μs square pulse), with thermal resistance of 30 K/W junction-to-lead and 180 K/W junction-to-ambient on standard 3 mm × 3 mm Cu pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 107.8 V min. / 110 V nom. / 112.2 V max. - precise regulation point for 110 V rail monitoring |
| Test Current | 5 mA - standardized bias condition for voltage specification and dynamic resistance measurement |
| Clamping Voltage | 145 V at 1 A - maximum voltage seen during 10/1000 μs surge, defining protection threshold |
| Surge Power | 150 W (10/1000 μs) - energy-handling capability for IEC 61000-4-5 level 4 transients |
| Dynamic Resistance | 82 Ω at 5 mA - low impedance ensures tight voltage regulation under varying load |
| Temperature Coefficient | +0.09 %/°C - positive drift enables predictable voltage shift across automotive temperature range |
| Leakage Current | 1 μA at 91 V - minimal standby power loss in always-on vehicle subsystems |
Pinout & Package
DO-219AB (SMF) surface-mount package: 2.7–2.9 mm length, 1.7–1.9 mm width, 0.8–0.88 mm height, cathode marked by band on top surface; compatible with wave and reflow soldering up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to lower-potential node; forward drop ≤1.2 V at 0.2 A enables low-loss biasing |
| Cathode | Zener breakdown terminal | Marked end; connected to higher-potential rail to clamp overvoltage events above 110 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control units and body electronics |
| MSL Level 1 rating | Zero floor life limitation - supports unlimited storage and standard reflow without baking |
| JESD201 Class 2 whisker resistance | Ensures long-term mechanical reliability in high-vibration environments like powertrain modules |
| 175 °C maximum junction temperature | Enables operation in proximity to hot components such as power MOSFETs and DC/DC converters |
| 150 W surge rating (10/1000 μs) | Meets ISO 7637-2 Pulse 5a requirements for load dump suppression in 24 V systems |
Applications
| Automotive Load Dump Protection | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Suppresses 120 V load dump transients in 24 V commercial vehicle alternator circuits. IC Role / Device Role / Timing Role: Unidirectional Zener clamping device placed across battery input to limit voltage excursion. Use Value: Limits peak voltage to 145 V, protecting downstream 150 V-rated DC/DC controllers and microcontrollers. | Use Scenario: Guards programmable logic controller (PLC) 24 V backplane against switching surges. IC Role / Device Role / Timing Role: Standby overvoltage protector mounted directly at power entry connector. Use Value: Absorbs 150 W surge energy without degradation, maintaining system uptime during relay coil de-energization. |
| Telecom DC Power Interface | Renewable Energy Charge Controller |
Use Scenario: Protects PoE midspan injector outputs from induced lightning surges on outdoor Ethernet runs. IC Role / Device Role / Timing Role: Secondary-level transient voltage suppressor after primary gas discharge tube. Use Value: Provides fast-response clamping (ns-scale) with 1 μA leakage, preserving signal integrity on data lines. | Use Scenario: Shields solar charge controller MOSFET gate drivers from PV array string voltage spikes. IC Role / Device Role / Timing Role: Zener reference and surge limiter on 100–120 V DC bus sensing network. Use Value: Maintains ±2 % voltage accuracy across -40 °C to +125 °C, enabling precise MPPT algorithm execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A-E3/52 | TVS diode with 110 V standoff, 173 V clamping, 600 W peak power - higher surge capacity but looser voltage tolerance (±5 %) | Preferred where higher energy absorption is required over precision regulation | Select SMBJ110A-E3/52 when protecting against repeated lightning-induced surges in outdoor telecom cabinets |
| BZD27C110P-HE3_A08 | Same package and AEC-Q101 qualification, but ±5 % Zener tolerance (104.5–115.5 V) and 100 Ω dynamic resistance | Used where cost sensitivity outweighs need for tight voltage stability | Select BZD27C110P-HE3_A08 for non-safety-critical interior lighting modules requiring lower BOM cost |
Compared with BZD27B110P-HE3_A08, SMBJ110A-E3/52 offers 4× higher surge power but sacrifices regulation precision, while BZD27C110P-HE3_A08 reduces cost and voltage accuracy for less demanding automotive zones.
Availability
BZD27B110P-HE3_A08 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply with AEC-Q101 compliance and high-temperature operation.
Supply support for BZD27B110P-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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and optoelectronics, with emphasis on reliability, power efficiency, and automotive-grade qualification.
The BZD27B Series belongs to Vishay's eSMP® Zener portfolio, engineered specifically for high-stability voltage regulation and robust transient suppression in harsh-environment applications such as automotive power distribution and industrial control.
FAQ
What is the Zener voltage tolerance for BZD27B110P-HE3_A08?
The BZD27B110P-HE3_A08 has a ±2 % Zener voltage tolerance, meaning its nominal 110 V breakdown occurs between 107.8 V and 112.2 V at 5 mA test current. This tight tolerance supports precision voltage monitoring in safety-critical automotive subsystems where regulation accuracy directly impacts fault detection thresholds. The BZD27B110P-HE3_A08 achieves this via silicon planar process control and post-package screening.
Is BZD27B110P-HE3_A08 suitable for automotive under-hood applications?
Yes, BZD27B110P-HE3_A08 is AEC-Q101 qualified and rated for -65 °C to +175 °C operating temperature, making it suitable for under-hood automotive use including engine control units and battery management systems. Its MSL Level 1 rating and JESD201 Class 2 whisker resistance ensure reliability in high-vibration, high-temperature environments. The BZD27B110P-HE3_A08 also meets ISO 7637-2 Pulse 5a load dump requirements when applied with appropriate PCB layout.
What is the clamping voltage of BZD27B110P-HE3_A08 at 1 A surge current?
The clamping voltage of BZD27B110P-HE3_A08 is 145 V at 1 A peak current under 10/1000 μs waveform conditions. This value defines the maximum voltage imposed on protected circuitry during standardized surge events and is critical for ensuring downstream components (e.g., 150 V-rated DC/DC converters) remain within safe operating limits. The BZD27B110P-HE3_A08 achieves this clamping performance with low dynamic resistance and optimized junction design.
Does BZD27B110P-HE3_A08 require special handling for moisture sensitivity?
No, BZD27B110P-HE3_A08 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no dry pack or baking prior to reflow soldering. It withstands peak reflow temperatures up to 260 °C and is compatible with standard lead-free assembly processes. This simplifies manufacturing logistics and eliminates moisture-related yield loss - a key advantage of the BZD27B110P-HE3_A08 in high-volume automotive production.
How does the temperature coefficient affect BZD27B110P-HE3_A08 performance in wide-temperature applications?
The BZD27B110P-HE3_A08 has a temperature coefficient of +0.09 %/°C, causing its Zener voltage to increase by approximately 0.099 V per 10 °C rise. This predictable positive drift allows designers to compensate in firmware or analog circuitry for accurate voltage referencing across -40 °C to +125 °C ambient ranges. The BZD27B110P-HE3_A08 maintains regulation stability even at 175 °C junction temperature, supporting reliable operation in thermally constrained locations.
BZD27B110P-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):
- 91V (Max)
- Voltage - Breakdown (Min):
- 107.8V
- Voltage - Clamping (Max) @ Ipp:
- 145V
- Current - Peak Pulse (10/1000µs):
- 1A
- 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)
BZD27B110P-HE3_A08 FAQ
1.How can I place an order for BZD27B110P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B110P-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 BZD27B110P-HE3_A08 reliable?
The price and inventory of BZD27B110P-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 BZD27B110P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B110P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B110P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B110P-HE3_A08?
BZD27B110P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B110P-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 BZD27B110P-HE3_A08?
For technical support, including BZD27B110P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B110P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B110P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B110P-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 BZD27B110P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B110P-HE3_A08?
All BZD27B110P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B110P-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 BZD27B110P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B110P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B110P-HE3_A08 Tags

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