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Vishay General Semiconductor - Diodes Division BZD27B120P-E3-08
- Part No.:
- BZD27B120P-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B120P-E3-08.pdf
- Description:
- DIODE ZENER 120V 800MW DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,765
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Product details
Overview
BZD27B120P-E3-08 from Vishay Semiconductors is a silicon planar Zener diode in the SOD-123W-compatible SMF (DO-219AB) package, rated for 120 V nominal Zener voltage (±2 % tolerance), 5 mA test current, 100 μA reverse leakage at 96 V, 161 V clamping voltage at 1 A surge, and 150 W peak surge power (10/1000 μs). It serves as a precision voltage reference and transient overvoltage protector in industrial power supply feedback loops and automotive ECU input protection circuits.
For engineers reviewing the BZD27B120P-E3-08 datasheet, BZD27B120P-E3-08 pinout, BZD27B120P-E3-08 application, or BZD27B120P-E3-08 equivalent, key selection criteria include its ±2 % VZ tolerance, 150 W 10/1000 μs surge rating, 0.09 %/°C temperature coefficient, AEC-Q101 qualification eligibility (via -HE3 variant), and low-profile SMF package with MSL level 1 handling.
Technical Context
This unidirectional Zener diode operates in reverse breakdown to regulate or clamp voltage with stable characteristics across -65 °C to +175 °C. Its 120 V nominal Zener voltage is specified at 5 mA test current, with dynamic resistance of 80 Ω and temperature coefficient of +0.09 %/°C (min) to +0.13 %/°C (max), ensuring predictable thermal drift in high-reliability environments.
The device delivers 150 W non-repetitive peak surge power under 10/1000 μs waveform per IEC 60-1, with clamping voltage of 161 V at 1 A surge current. Its junction-to-ambient thermal resistance is 180 K/W on a 3 mm × 3 mm Cu pad, supporting robust thermal performance in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 117.6 V to 122.4 V at 5 mA - tight ±2 % tolerance enables precise voltage reference in feedback networks |
| Clamping Voltage (VC) | 161 V at 1 A surge - defines maximum transient voltage seen by protected circuitry during ESD or load dump |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs) - meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial interfaces |
| Reverse Leakage (IR) | 5 μA max at 96 V - ensures minimal standby power loss in high-impedance bias networks |
| Temperature Coefficient (αVZ) | +0.09 %/°C to +0.13 %/°C - quantifies positive VZ drift with temperature, critical for thermal compensation design |
| Package | SMF (DO-219AB) - low-profile 2.7 mm × 1.9 mm surface-mount package compatible with SOD-123W footprint |
| Junction Temperature (Tj) | 175 °C max - supports operation in under-hood automotive and industrial motor drive environments |
Pinout & Package
SMF (DO-219AB) package: 2-terminal unidirectional Zener diode with cathode marked by band on top surface; dimensions 2.7 mm × 1.9 mm × 1.08 mm; MSL level 1, reflow-compatible up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to ground or lower-potential rail; carries forward current up to 0.2 A (VF ≤ 1.2 V) |
| Cathode | Reverse breakdown terminal / regulated output node | Connected to voltage source or signal line; maintains 120 V reference during regulation or clamps transients to ≤161 V |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement in precision feedback paths without recalibration of resistor dividers |
| 150 W 10/1000 μs surge rating | Provides single-device protection against IEC 61000-4-5 surges without external series impedance |
| AEC-Q101 qualification path | Supports automotive applications via -HE3 variant; commercial -E3 version shares identical die and package |
| MSL level 1 moisture sensitivity | Eliminates bake requirement before reflow, reducing manufacturing cost and cycle time |
| Low-profile SMF package | Reduces board space vs. DO-41 or SMA while maintaining thermal performance via 3 mm × 3 mm Cu pads |
Applications
| Industrial Power Supply Feedback | Automotive ECU Input Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler feedback loop. IC Role / Device Role / Timing Role: Precision Zener reference providing stable 120 V threshold for TL431-like error amplifier biasing. Use Value: ±2 % VZ tolerance eliminates need for post-production trimming, reducing calibration cost. | Use Scenario: Protecting microcontroller GPIO inputs from load-dump transients in 24 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor clamping induced spikes to ≤161 V. Use Value: 150 W surge rating handles 10/1000 μs pulses without degradation, extending ECU field life. |
| Test Equipment Voltage Reference | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Providing stable reference for digital multimeter ADC front-end scaling circuits. IC Role / Device Role / Timing Role: Low-drift Zener element establishing 120 V full-scale calibration point. Use Value: +0.09 %/°C to +0.13 %/°C αVZ allows accurate temperature-compensated measurements across 0–70 °C range. | Use Scenario: Monitoring high-voltage DC bus (100–150 V) in solar string inverters for overvoltage shutdown. IC Role / Device Role / Timing Role: Voltage supervisor triggering protection logic when bus exceeds 122.4 V. Use Value: 175 °C max junction temperature supports operation near heat-generating IGBT modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120A | TVS diode with 120 V standoff, 133 V breakdown, 1500 W peak pulse power - higher surge capacity but looser voltage tolerance (±5 %) | Designed for fast transient suppression (8/20 μs), not precision regulation | Select for surge-heavy environments where clamping speed matters more than DC accuracy |
| BZX84-C120 | SOT-23 Zener with 120 V nominal, ±5 % tolerance, 300 mW power - smaller package but lower surge rating (40 W) | Targeted at low-power signal-level regulation, not power rail protection | Select for space-constrained PCBs where 150 W surge capability is unnecessary |
Compared with SMBJ120A and BZX84-C120, the BZD27B120P-E3-08 uniquely balances ±2 % regulation accuracy, 150 W surge immunity, and industrial-grade thermal capability in a low-profile surface-mount package-making it optimal for applications requiring both precision and ruggedness.
Availability
BZD27B120P-E3-08 is available at Aetrix Electronics and suitable for industrial power supplies, automotive electronic control units, test equipment voltage references, and renewable energy inverter monitoring systems requiring stable component supply and long-term manufacturability.
Supply support for BZD27B120P-E3-08 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 for high-surge, high-temperature applications where precision voltage regulation and transient immunity must coexist in compact surface-mount packages.
FAQ
What is the Zener voltage tolerance of BZD27B120P-E3-08?
The BZD27B120P-E3-08 has a Zener voltage tolerance of ±2 %, specified as 117.6 V (min) to 122.4 V (max) at 5 mA test current. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of Vishay document 85921 and enables use in precision voltage reference designs without post-assembly calibration. The BZD27B120P-E3-08 achieves this via silicon planar process control and 100 % parametric screening.
Does BZD27B120P-E3-08 meet AEC-Q101 qualification?
The BZD27B120P-E3-08 is RoHS-compliant and commercial-grade; AEC-Q101 qualification is available for the -HE3 variant (e.g., BZD27B120P-HE3_A08). Per Vishay's ordering information, the -E3 suffix denotes commercial grade, while -HE3 indicates AEC-Q101 qualified. The BZD27B120P-E3-08 shares identical die and SMF package with the -HE3 version, differing only in test screening and documentation.
What is the maximum clamping voltage of BZD27B120P-E3-08 during surge events?
The BZD27B120P-E3-08 has a maximum clamping voltage (VC) of 161 V at 1 A surge current under 10/1000 μs waveform, as specified in the "Electrical Characteristics" table on page 3 of Vishay document 85921. This value defines the upper voltage limit imposed on protected circuitry during transient events and is measured with IRSM = 1 A, confirming robust overvoltage suppression capability for the BZD27B120P-E3-08.
Can BZD27B120P-E3-08 be used in reflow soldering processes?
Yes, the BZD27B120P-E3-08 is fully compatible with standard reflow soldering processes. Its SMF (DO-219AB) package meets J-STD-020 MSL level 1 and supports peak reflow temperatures up to 260 °C, as stated in the "PACKAGE" section on page 1 of Vishay document 85921. No pre-bake is required due to its moisture sensitivity level, simplifying manufacturing for the BZD27B120P-E3-08.
What is the thermal resistance of BZD27B120P-E3-08 from junction to ambient?
The junction-to-ambient thermal resistance (RthJA) of BZD27B120P-E3-08 is 180 K/W when mounted on an epoxy-glass PCB with 3 mm × 3 mm copper pads ≥40 μm thick, per the Absolute Maximum Ratings table on page 1 of Vishay document 85921. This value directly impacts power derating curves and must be used to calculate safe operating area for continuous DC dissipation in the BZD27B120P-E3-08.
BZD27B120P-E3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- BZD27B
- Package/Case:
- DO-219AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 120 V
- Tolerance:
- -
- Power - Max:
- 800 mW
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 91 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
BZD27B120P-E3-08 FAQ
1.How can I place an order for BZD27B120P-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B120P-E3-08 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-E3-08 reliable?
The price and inventory of BZD27B120P-E3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27B120P-E3-08 is usually 5 days.
3.What payment methods are accepted for BZD27B120P-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B120P-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B120P-E3-08?
BZD27B120P-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B120P-E3-08 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-E3-08?
For technical support, including BZD27B120P-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B120P-E3-08 requirements.
6.How does Aetrix verify that BZD27B120P-E3-08 is sourced from the original manufacturer or authorized distributors?
All BZD27B120P-E3-08 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-E3-08 meets industry standards.
7.What is the process for return or replacement of BZD27B120P-E3-08?
All BZD27B120P-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B120P-E3-08, 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-E3-08 part is unused and in its original packaging.
Return procedure for BZD27B120P-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B120P-E3-08 Tags
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