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Vishay General Semiconductor - Diodes Division BZW04P8V5BHE3/73
- Part No.:
- BZW04P8V5BHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P8V5BHE3/73.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04P8V5BHE3/73 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 8.55 V stand-off voltage (VWM), 14.5 V clamping voltage (VC) at 27.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the BZW04P8V5BHE3/73 datasheet, BZW04P8V5BHE3/73 pinout, BZW04P8V5BHE3/73 application, or BZW04P8V5BHE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) package compatibility, bi-directional surge handling up to ±27.6 A, and low 0.07 %/°C temperature coefficient of breakdown voltage - critical for stable clamping across automotive temperature ranges.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes.
The device is rated for 400 W peak pulse power (10/1000 μs), derated above 25 °C per Fig. 2, and supports continuous power dissipation of 1.5 W on an infinite heatsink at 75 °C. Junction temperature range spans −55 °C to +175 °C, validated under AEC-Q101 stress testing for automotive reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 8.55 V - maximum continuous working voltage before clamping begins; defines safe operating margin below system rail. |
| VC (Clamping Voltage) | 14.5 V at IPPM = 27.6 A - peak voltage seen by protected circuit during worst-case 10/1000 μs surge; limits stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 400 W - energy-handling capacity for standardized 10/1000 μs transient; enables protection against IEC 61000-4-5 Level 4 surges. |
| VBR (Breakdown Voltage) | 9.50–11.0 V at IT = 1 mA - sharp avalanche onset ensures predictable turn-on without premature conduction. |
| ID (Reverse Leakage) | 10 μA max at VWM - negligible standby current avoids loading sensitive analog or low-power circuits. |
| TJ Max | +175 °C - high junction temperature rating supports under-hood automotive placement and industrial ambient conditions. |
| AEC-Q101 Qualified | Yes - qualified per stress test requirements for automotive discrete semiconductors, including HTOL, TC, and HAST. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. HE3 suffix denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bi-directional) | Non-polarized terminals | No polarity marking; symmetrical operation allows installation without orientation check - simplifies automated assembly and field replacement. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Identical VBR, VC, and IPPM in both directions - protects AC-coupled lines (e.g., RS-485, CAN, audio) without external polarity management. |
| Glass passivated junction | Enables <1 ns response time and stable leakage performance - critical for suppressing fast ESD events (IEC 61000-4-2 ±15 kV contact). |
| 400 W peak pulse power | Sustains 10/1000 μs surges up to 27.6 A - meets IEC 61000-4-5 surge immunity requirements for industrial and automotive equipment. |
| AEC-Q101 qualification | Validated for automotive under-hood use with extended temperature cycling, high-temperature operating life, and humidity exposure testing. |
| Low tempco of VBR | 0.07 %/°C - minimal drift over −40 °C to +125 °C ambient ensures consistent clamping threshold in engine control units and ADAS modules. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and throttle position sensors from load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary transient clamp placed between sensor output line and microcontroller input. Use Value: Clamps transients to ≤14.5 V while surviving repeated 400 W surges - prevents MCU reset or ADC saturation during vehicle cranking. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor drive noise and ground bounce. IC Role / Device Role: Bi-directional TVS on differential bus lines (A/B) to absorb common-mode and differential surges. Use Value: Symmetrical clamping maintains signal integrity across ±12 V common-mode range without polarity constraints or additional components. |
| Telecom Line Conditioning | Consumer Appliance Power Input |
Use Scenario: Shielding DSL/VDSL line drivers from lightning-induced surges on outdoor copper pairs. IC Role / Device Role: First-stage protection ahead of GDT or MOV-based secondary clamping networks. Use Value: Fast 1 ns response captures initial surge edge before slower protectors activate - reduces let-through energy to <10 mJ. |
Use Scenario: Overvoltage safeguard on AC mains input of smart home hubs and HVAC controllers. IC Role / Device Role: Secondary protection after fuse and MOV, limiting residual clamping voltage to safe levels for bridge rectifier and controller ICs. Use Value: 8.55 V VWM aligns with 12 V auxiliary rails; 14.5 V VC prevents latch-up in 16 V-rated LDOs and microcontrollers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.5CA | DO-214AA package; 8.5 V VWM; 14.4 V VC at 27.2 A; same 400 W PPPM but higher junction capacitance (150 pF vs. ~50 pF for BZW04P8V5BHE3/73). | Less suitable for high-speed data lines due to higher capacitance; preferred where board space allows SMC/SMB footprint. | Select SMBJ8.5CA only if DO-214AA mounting is required; verify layout clearance for larger body size. |
| P6KE8.5CA | DO-15 package; 8.5 V VWM; 15.0 V VC at 26.7 A; 600 W PPPM rating but lower surge current endurance per pulse due to thermal mass limitations. | Better for infrequent surges; less robust for repetitive industrial switching noise. | Prefer BZW04P8V5BHE3/73 for AEC-Q101 compliance and tighter VC tolerance; P6KE8.5CA lacks automotive qualification. |
Compared with SMBJ8.5CA and P6KE8.5CA, BZW04P8V5BHE3/73 offers superior automotive qualification (AEC-Q101), lower clamping voltage tolerance (±14.5 V vs. ±15.0 V), and optimized thermal resistance in DO-41 - making it the preferred choice for space-constrained, high-reliability automotive and industrial designs requiring repeatable surge performance.
Availability
BZW04P8V5BHE3/73 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interface hardening, and telecom line conditioning requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for BZW04P8V5BHE3/73 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in automotive, industrial, and communications systems where AEC-Q101 compliance and precise clamping performance are mandatory.
FAQ
What is the clamping voltage of BZW04P8V5BHE3/73 and how is it measured?
The clamping voltage (VC) of BZW04P8V5BHE3/73 is 14.5 V, measured at a peak pulse current (IPPM) of 27.6 A using the standardized 10/1000 μs double-exponential waveform. This value represents the maximum voltage imposed on the protected circuit during surge conditions and is guaranteed per Vishay's datasheet Document Number 88316, page 2. The BZW04P8V5BHE3/73 maintains this clamping performance bidirectionally and across its full operating temperature range.
Is BZW04P8V5BHE3/73 suitable for automotive applications?
Yes, BZW04P8V5BHE3/73 is AEC-Q101 qualified, explicitly tested for automotive-grade reliability including high-temperature operating life, temperature cycling, and humidity bias testing. Its DO-204AL package, −55 °C to +175 °C junction temperature range, and stable 0.07 %/°C VBR temperature coefficient make it appropriate for engine control units, body electronics, and ADAS sensor interfaces. The HE3 suffix confirms AEC-Q101 compliance per Vishay's ordering nomenclature.
How does the bi-directional design of BZW04P8V5BHE3/73 affect circuit layout?
The bi-directional design of BZW04P8V5BHE3/73 eliminates polarity marking - no cathode band or orientation requirement - allowing unrestricted placement on PCBs and simplifying pick-and-place programming. This is especially valuable in differential signaling (e.g., CAN, RS-485) and AC-coupled paths where traditional uni-directional TVS diodes would require careful routing or dual-device configurations. The BZW04P8V5BHE3/73 functions identically regardless of terminal connection order.
What is the maximum peak pulse current rating for BZW04P8V5BHE3/73?
The maximum peak pulse current (IPPM) for BZW04P8V5BHE3/73 is 27.6 A, specified at the 10/1000 μs waveform and TA = 25 °C. This rating is derived directly from its 400 W peak pulse power capability and 14.5 V clamping voltage (IPPM = PPPM / VC). Derating applies above 25 °C per Figure 2 in the datasheet, with usable IPPM dropping to ~22 A at 85 °C ambient. The BZW04P8V5BHE3/73 sustains this current without parametric shift or failure under defined test conditions.
Does BZW04P8V5BHE3/73 have RoHS and REACH compliance documentation?
Yes, BZW04P8V5BHE3/73 carries the HE3 suffix, indicating full compliance with RoHS Directive 2011/65/EU and alignment with WEEE 2002/96/EC. Vishay certifies all HE3-suffix parts as lead-free, halogen-free, and fully compliant with material restrictions under REACH SVHC thresholds. Compliance documentation, including declarations and test reports, is available via Vishay's official portal using Document Number 88316 and the base P/N BZW04P8V5B.
BZW04P8V5BHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 27.6A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P8V5BHE3/73 FAQ
1.How can I place an order for BZW04P8V5BHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P8V5BHE3/73 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 BZW04P8V5BHE3/73 reliable?
The price and inventory of BZW04P8V5BHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P8V5BHE3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P8V5BHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P8V5BHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P8V5BHE3/73?
BZW04P8V5BHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P8V5BHE3/73 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 BZW04P8V5BHE3/73?
For technical support, including BZW04P8V5BHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P8V5BHE3/73 requirements.
6.How does Aetrix verify that BZW04P8V5BHE3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P8V5BHE3/73 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 BZW04P8V5BHE3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P8V5BHE3/73?
All BZW04P8V5BHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P8V5BHE3/73, 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 BZW04P8V5BHE3/73 part is unused and in its original packaging.
Return procedure for BZW04P8V5BHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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