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Vishay BZD27B120P-HE3_A08
- Part No.:
- BZD27B120P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B120P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,708
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Product details
Overview
BZD27B120P-HE3_A08 from Vishay Semiconductors is a surface-mount, AEC-Q101 qualified Zener diode with nominal breakdown voltage of 120 V, ±2 % tolerance, 5 mA test current, and 161 V clamping voltage at 100 A surge (10/1000 μs). It delivers 150 W non-repetitive peak surge power in the low-profile SMF (DO-219AB) package and is used for overvoltage protection in automotive power supply rails.
For engineers reviewing the BZD27B120P-HE3_A08 datasheet, BZD27B120P-HE3_A08 pinout, BZD27B120P-HE3_A08 application, or BZD27B120P-HE3_A08 equivalent, key selection criteria include its 120 V Zener voltage tolerance, 161 V clamping performance under 100 A transient, AEC-Q101 qualification, MSL level 1 rating, and compatibility with reflow soldering per J-STD-020.
Technical Context
This unidirectional Zener diode operates as a voltage clamp in reverse-biased configuration, with specified dynamic resistance of 80 Ω at 5 mA and temperature coefficient of +0.09 to +0.13 %/°C. Its junction-to-lead thermal resistance is 30 K/W, enabling high-power transient suppression without external heatsinking when mounted on standard 3 mm × 3 mm Cu pads.
The device meets AEC-Q101 stress testing requirements including human body model ESD > 8 kV and machine model > 800 V, and is rated for continuous operation from –65 °C to +175 °C. Its surge capability is defined per IEC 60-1 (10/1000 μs waveform), with 150 W peak surge power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 117.6 V min. / 120 V nom. / 122.4 V max. - tight ±2 % tolerance enables precise overvoltage threshold setting in safety-critical circuits |
| Clamping Voltage (VC) | 161 V at IRSM = 100 A (10/1000 μs) - defines maximum voltage seen by protected circuit during surge events |
| Peak Surge Power (PRSM) | 150 W - supports robust transient immunity in automotive 12 V/24 V systems with load dump or ISO 7637-2 pulses |
| Test Current (IZT) | 5 mA - standardized bias point for voltage specification; ensures stable regulation under light-load conditions |
| Junction Temperature (Tj) | –65 °C to +175 °C - enables deployment in under-hood automotive environments without derating |
| Package | SMF (DO-219AB) - 2.7 mm × 1.9 mm footprint with 0.85 mm height; compatible with high-density PCB layouts and automated assembly |
| ESD Rating | HBM > 8 kV, MM > 800 V - exceeds AEC-Q101 requirements for electrostatic robustness in manufacturing and field use |
Pinout & Package
SMF (DO-219AB) package: low-profile, surface-mount, single-diode configuration with cathode marked by band on top surface. Dimensions: 2.7 mm × 1.9 mm × 0.85 mm (L × W × H); recommended footprint: 1.3 mm × 2.9 mm pad with 1.4 mm center spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in clamping configuration; carries forward current up to 0.2 A (VF ≤ 1.2 V) |
| Cathode | Zener breakdown terminal | Connected to higher-potential node; defines clamping reference; marked by band on package top surface |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60 % RH; supports standard SMT reflow without baking |
| Low leakage current | ≤5 μA at VR = 100 V - minimizes standby power loss in always-on vehicle subsystems |
| Whisker resistance | Class 2 per JESD 201 - prevents tin whisker growth in long-life automotive deployments |
| Surge-rated construction | Rated for 100 A (10/1000 μs) transients - exceeds ISO 7637-2 Pulse 5a requirements for 24 V systems |
Applications
| Automotive Load Dump Protection | Industrial DC Power Rail Clamp |
|---|---|
Use Scenario: Suppresses 120 V transients induced by alternator load dump in 24 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional Zener clamp placed across main power rail (e.g., battery input to ECUs). Use Value: Limits voltage to ≤161 V during 100 A surges, protecting downstream MOSFETs, MCUs, and analog sensors. |
Use Scenario: Protects programmable logic controllers (PLCs) and motor drives from switching transients on 24–48 V industrial power buses. IC Role / Device Role / Timing Role: Standoff voltage limiter in parallel with bulk capacitance on regulated DC output stage. Use Value: Maintains system uptime by preventing overvoltage-induced latch-up or gate oxide damage in power ICs. |
| Telecom Line Interface Protection | Renewable Energy Inverter DC Link Clamp |
Use Scenario: Shields Ethernet PHYs and PoE controllers from induced surges on outdoor telecom lines. IC Role / Device Role / Timing Role: Secondary clamping device downstream of GDT or TVS array in multi-stage protection scheme. Use Value: Provides precise 120 V threshold with low dynamic impedance (80 Ω), improving response speed vs. macro-sized MOVs. |
Use Scenario: Clamps DC link voltage spikes caused by IGBT turn-off in solar inverters operating at 600–1000 V bus levels. IC Role / Device Role / Timing Role: Auxiliary clamp across intermediate DC stage (e.g., pre-regulator output) to limit overshoot during fast load changes. Use Value: Enables tighter voltage margins and smaller bulk capacitors due to predictable 161 V clamping ceiling at 100 A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120A-E3/52 (Vishay) | Higher clamping voltage (165 V at 100 A), same DO-214AA package, but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial only | Select when AEC-Q101 is not required and SMB footprint is preferred |
| P6SMB120A (ON Semiconductor) | Same 120 V nominal Zener, 165 V clamping, DO-214AA package, AEC-Q101 option available (P6SMB120AQ) | Requires separate AEC-Q101 variant; slightly higher clamping and larger footprint than SMF | Choose if existing design uses SMB package and requires drop-in replacement with verified automotive grade |
Compared with BZD27B120P-HE3_A08, SMBJ120A-E3/52 offers identical voltage rating but lacks automotive qualification and uses a larger DO-214AA package, while P6SMB120AQ matches AEC-Q101 compliance but trades off 0.5 mm in height and 0.8 mm in length for reduced board area efficiency.
Availability
BZD27B120P-HE3_A08 is available at Aetrix Electronics and suitable for automotive power management, industrial PLC protection, and renewable energy inverter designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZD27B120P-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 targets high-surge, high-stability Zener protection in space-constrained automotive and industrial applications, emphasizing AEC-Q101 compliance, low-profile packaging, and precise voltage tolerance.
FAQ
What is the Zener voltage tolerance of BZD27B120P-HE3_A08?
The BZD27B120P-HE3_A08 has a Zener voltage tolerance of ±2 %, with a nominal value of 120 V and a specified range of 117.6 V to 122.4 V at 5 mA test current. This tight tolerance ensures consistent clamping behavior across production lots and temperature ranges, critical for meeting automotive voltage margin requirements.
Is BZD27B120P-HE3_A08 qualified for automotive applications?
Yes, BZD27B120P-HE3_A08 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and ESD (HBM > 8 kV, MM > 800 V). The "HE3" suffix explicitly denotes AEC-Q101 qualification, making it suitable for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage for BZD27B120P-HE3_A08 during surge events?
The maximum clamping voltage for BZD27B120P-HE3_A08 is 161 V at a 100 A, 10/1000 μs surge waveform. This value is measured under standardized IEC 60-1 test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Which package does BZD27B120P-HE3_A08 use, and what are its key mechanical features?
BZD27B120P-HE3_A08 uses the SMF (DO-219AB) package: a low-profile surface-mount case measuring 2.7 mm × 1.9 mm × 0.85 mm. It features a cathode band marking, MSL level 1 rating, and compatibility with standard reflow profiles peaking at 260 °C, supporting high-density automotive PCB assembly.
How does the thermal performance of BZD27B120P-HE3_A08 support high-power surge handling?
BZD27B120P-HE3_A08 achieves 150 W peak surge power dissipation thanks to its low junction-to-lead thermal resistance of 30 K/W. When mounted on a 3 mm × 3 mm copper pad, it maintains junction temperatures below 175 °C during short-duration surges, eliminating need for additional heatsinking in typical automotive layouts.
BZD27B120P-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):
- 100V (Max)
- Voltage - Breakdown (Min):
- 117.6V
- Voltage - Clamping (Max) @ Ipp:
- 161V
- Current - Peak Pulse (10/1000µs):
- 900mA
- 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)
BZD27B120P-HE3_A08 FAQ
1.How can I place an order for BZD27B120P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B120P-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 BZD27B120P-HE3_A08 reliable?
The price and inventory of BZD27B120P-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 BZD27B120P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B120P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B120P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B120P-HE3_A08?
BZD27B120P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B120P-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 BZD27B120P-HE3_A08?
For technical support, including BZD27B120P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B120P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B120P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B120P-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 BZD27B120P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B120P-HE3_A08?
All BZD27B120P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B120P-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 BZD27B120P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B120P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B120P-HE3_A08 Tags
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