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Vishay BZD27B75P-HE3_A08
- Part No.:
- BZD27B75P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B75P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,136
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Product details
Overview
BZD27B75P-HE3_A08 from Vishay Semiconductors is a surface-mount, AEC-Q101-qualified Zener diode with nominal breakdown voltage of 75 V, ±2 % tolerance, 10 mA test current, 100.2 V clamping voltage at 5 A surge, and 150 W peak surge power rating (10/1000 μs). It serves as a precision voltage reference and transient overvoltage protector in automotive power rail conditioning circuits.
For engineers reviewing the BZD27B75P-HE3_A08 datasheet, BZD27B75P-HE3_A08 pinout, BZD27B75P-HE3_A08 application, or BZD27B75P-HE3_A08 equivalent, key selection criteria include its 75 V Zener voltage tolerance, 150 W surge rating, DO-219AB (SMF) package compatibility, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This unidirectional Zener diode operates in reverse-bias breakdown mode to regulate or clamp voltage. Its 73.5–76.5 V Zener range at 10 mA ensures tight DC reference stability, while low dynamic resistance (56 Ω max) minimizes voltage deviation under load variation.
The device delivers 150 W non-repetitive peak surge power per IEC 60-1 (10/1000 μs), with clamping voltage of 100.2 V at 5 A IRSM - enabling robust protection against load dump and ISO 7637-2 transients in 12 V/24 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 73.5 V min / 75 V nom / 76.5 V max at 10 mA - enables precise 75 V rail regulation with ±2 % tolerance |
| Clamping Voltage (VC) | 100.2 V at 5 A IRSM - limits transient overvoltage to safe levels during 10/1000 μs surges |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs) - meets ISO 7637-2 Pulse 5a/b requirements for automotive load dump suppression |
| Dynamic Resistance (ZZ) | ≤ 100 Ω at 10 mA - ensures minimal output voltage shift across operating current variations |
| Temperature Coefficient (αVZ) | +0.08 %/°C to +0.13 %/°C - supports stable reference performance across -65 °C to +175 °C junction range |
| Junction Temperature (Tj) | 175 °C max - allows operation in high-temperature engine compartment environments |
| Package | DO-219AB (SMF) - low-profile SMD outline compatible with automated reflow assembly and space-constrained PCBs |
Pinout & Package
DO-219AB (SMF) package: 2.7–2.9 mm length × 1.7–1.9 mm width × 0.88–1.08 mm height; cathode marked by band on top surface; designed for wave and reflow soldering with MSL level 1 rating (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener operation | Enables standard cathode-grounded configuration for voltage clamping or regulation |
| Cathode | Current exit terminal in forward bias; connected to higher-potential node in Zener operation | Marked by visible band; ties to protected rail or reference point for bidirectional transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS power supplies |
| 150 W surge rating (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a (load dump) without degradation in 24 V systems |
| ±2 % VZ tolerance | Reduces need for post-production trimming in precision reference designs |
| MSL level 1 moisture sensitivity | Eliminates bake requirement prior to reflow, streamlining high-volume SMT manufacturing |
| Low leakage current (≤5 μA at 62 V) | Minimizes standby power loss in always-on vehicle subsystems |
Applications
| Automotive Load Dump Protection | Engine Control Unit (ECU) Voltage Reference |
|---|---|
|
Use Scenario: Suppresses 120 V transients induced by alternator load dump in 24 V commercial vehicle power networks. IC Role / Device Role / Timing Role: Unidirectional Zener clamping diode placed between battery rail and ECU input stage. Use Value: Limits voltage excursion to ≤100.2 V at 5 A, preventing damage to downstream 75 V-rated regulators and microcontrollers. |
Use Scenario: Provides stable 75 V reference for analog sensor signal conditioning and ADC biasing in diesel ECU modules. IC Role / Device Role / Timing Role: Precision Zener voltage reference operating at 10 mA in shunt-regulated topology. Use Value: Delivers ±2 % voltage accuracy and +0.08–0.13 %/°C TC across -40 °C to +125 °C ambient, ensuring consistent sensor calibration. |
| On-Board Charger (OBC) DC Link Clamp | ADAS Camera Power Rail Protection |
|
Use Scenario: Clamps voltage spikes on 400 V DC link during IGBT switching transitions in EV on-board chargers. IC Role / Device Role / Timing Role: Transient voltage suppressor mounted across DC bus capacitors. Use Value: Absorbs 150 W surge energy (10/1000 μs) without failure, maintaining DC link integrity during fault conditions. |
Use Scenario: Protects 75 V auxiliary supply feeding radar and camera modules from ISO 16750-2 jump-start surges. IC Role / Device Role / Timing Role: Automotive-grade Zener diode integrated into front-end protection network. Use Value: AEC-Q101 qualification and 175 °C Tj rating ensure reliability in sealed, thermally isolated camera housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A-E3/52 | TVS diode (unidirectional), 75 V standoff, 100 V clamping at 10 A, 600 W peak power | Higher surge capacity but looser voltage tolerance (±5 %); optimized for fast transient suppression vs. precision regulation | Select when primary need is high-energy transient absorption rather than tight DC reference stability |
| BZX84-C75-HE3-08 | SOT-23 Zener, 75 V nominal, ±5 % tolerance, 300 mW PD, no AEC-Q101 rating | Limited to low-power signal-level protection; not rated for automotive under-hood temperature or surge stress | Use only in non-automotive, low-current reference or biasing roles where AEC-Q101 and surge capability are unnecessary |
Compared with SMBJ75A-E3/52 and BZX84-C75-HE3-08, the BZD27B75P-HE3_A08 uniquely balances ±2 % Zener tolerance, 150 W surge rating, AEC-Q101 qualification, and DO-219AB thermal performance - making it the only option suitable for automotive-grade 75 V shunt regulation with load dump immunity.
Availability
BZD27B75P-HE3_A08 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor reference circuits, and telecom DC-DC converter feedback networks requiring stable component supply and long-term lifecycle assurance.
Supply support for BZD27B75P-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 automotive and industrial applications demanding AEC-Q101-qualified Zener diodes with high surge robustness and tight voltage tolerance in compact surface-mount packages.
FAQ
What is the Zener voltage tolerance of the BZD27B75P-HE3_A08?
The BZD27B75P-HE3_A08 has a Zener voltage tolerance of ±2 %, with a specified range of 73.5 V to 76.5 V at 10 mA test current. This tight tolerance is confirmed in the Vishay BZD27B Series datasheet Rev. 2.1 (Document 85921), Table on page 2, and applies specifically to the BZD27B75P variant within the HE3-A08 ordering code family.
Is the BZD27B75P-HE3_A08 qualified for automotive use?
Yes, the BZD27B75P-HE3_A08 is AEC-Q101 qualified, as indicated by the "-HE3" suffix in its part number and explicitly stated in the Vishay datasheet section "FEATURES". It meets JESD201 Class 2 whisker testing, MSL Level 1, and ESD ratings (>8 kV HBM), making it suitable for under-hood automotive applications including ECUs and ADAS power supplies.
What is the maximum clamping voltage of the BZD27B75P-HE3_A08 during surge events?
The BZD27B75P-HE3_A08 has a maximum clamping voltage (VC) of 100.2 V at 5 A peak reverse surge current (IRSM) under 10/1000 μs waveform conditions. This value is documented in the "ELECTRICAL CHARACTERISTICS" table on page 3 of the Vishay datasheet (Rev. 2.1), confirming its effectiveness in limiting transients in 24 V automotive systems.
Which package does the BZD27B75P-HE3_A08 use, and is it RoHS-compliant?
The BZD27B75P-HE3_A08 uses the DO-219AB (SMF) surface-mount package, with dimensions of 2.7–2.9 mm × 1.7–1.9 mm × 0.88–1.08 mm. It is RoHS-compliant, as confirmed by the "-HE3" suffix denoting RoHS-compliant, AEC-Q101-qualified construction per Vishay's ordering information and material declarations.
What is the peak surge power rating of the BZD27B75P-HE3_A08?
The BZD27B75P-HE3_A08 has a non-repetitive peak surge power rating (PRSM) of 150 W for a 10/1000 μs waveform, as specified in the "ABSOLUTE MAXIMUM RATINGS" table on page 1 of the Vishay datasheet. This rating enables compliance with ISO 7637-2 Pulse 5a load dump requirements in commercial vehicle electrical systems.
BZD27B75P-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):
- 62V (Max)
- Voltage - Breakdown (Min):
- 73.5V
- Voltage - Clamping (Max) @ Ipp:
- 100.2V
- Current - Peak Pulse (10/1000µs):
- 1.5A
- 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)
BZD27B75P-HE3_A08 FAQ
1.How can I place an order for BZD27B75P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B75P-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 BZD27B75P-HE3_A08 reliable?
The price and inventory of BZD27B75P-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 BZD27B75P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B75P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B75P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B75P-HE3_A08?
BZD27B75P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B75P-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 BZD27B75P-HE3_A08?
For technical support, including BZD27B75P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B75P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B75P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B75P-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 BZD27B75P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B75P-HE3_A08?
All BZD27B75P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B75P-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 BZD27B75P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B75P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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