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Vishay General Semiconductor - Diodes Division BZW04-8V5BHE3/54
- Part No.:
- BZW04-8V5BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-8V5BHE3/54.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,030
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Product details
Overview
BZW04-8V5BHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of signal and power lines. It features a 8.55 V standoff voltage (VWM), 9.50–10.5 V breakdown voltage (VBR) at 1 mA, 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 and industrial I/O protection.
For engineers reviewing the BZW04-8V5BHE3/54 datasheet, BZW04-8V5BHE3/54 pinout, BZW04-8V5BHE3/54 application, or BZW04-8V5BHE3/54 equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, DO-41 mechanical compatibility, low leakage (<10 μA at VWM), and temperature coefficient of VBR (0.075 %/°C).
Technical Context
This device operates as a voltage-clamped shunt protector: during transient events exceeding VWM, it avalanches symmetrically in both directions to clamp line voltage at ≤14.5 V while diverting up to 27.6 A (10/1000 μs). Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Designed for repetitive surge immunity, it supports 0.01 % duty cycle at 400 W, derates linearly above 25 °C per Fig. 2, and maintains operation across –55 °C to +175 °C junction temperature range. The bidirectional configuration eliminates polarity dependency in AC-coupled or floating signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (min/max) | 9.50 V / 10.5 V at 1 mA - precise bidirectional avalanche onset range ensuring consistent turn-on across temperature and unit variation |
| VC @ IPPM | 14.5 V at 27.6 A - clamped voltage under full-rated 10/1000 μs surge; limits stress on downstream ICs such as microcontrollers or transceivers |
| PPPM | 400 W - peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 24 V systems |
| ID @ VWM | <10 μA - ultra-low reverse leakage at rated standoff; preserves signal integrity and minimizes standby power loss in battery-powered sensors |
| TJ max. | +175 °C - extended junction temperature rating supporting under-hood automotive and high-ambient industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, temperature cycling, and ESD per AEC standard |
Pinout & Package
DO-41 (DO-204AL) axial-leaded package: hermetically sealed glass passivated chip in molded epoxy housing meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional terminal pair | No polarity marking required; symmetrical conduction in both directions enables use on AC or floating differential lines without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage with minimal drift over lifetime and thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against lightning-induced surges and inductive switching transients in 24 V industrial control systems |
| AEC-Q101 qualified | Validated for automotive applications including body electronics, ADAS sensor interfaces, and powertrain subsystems |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes protected circuit overvoltage exposure during transient events, reducing risk of latch-up or gate oxide damage |
| 0.075 %/°C VBR tempco | Provides predictable, tightly bounded breakdown shift over –55 °C to +175 °C, critical for wide-temperature automotive deployments |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional shunt TVS placed directly at connector entry point to clamp fast-rising transients before reaching signal conditioning circuitry. Use Value: Maintains signal fidelity under 10/1000 μs surges up to 400 W while surviving repeated exposure per AEC-Q101 stress profiles. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on input terminals, operating in parallel with precision op-amps and ADC drivers. Use Value: Limits clamped voltage to 14.5 V, preventing saturation or damage to rail-to-rail input amplifiers and protecting internal ESD structures. |
| Consumer Appliance Motor Drive Protection | Telecom Line Interface Protection |
Use Scenario: Shielding microcontroller GPIOs and H-bridge gate drivers in smart home appliances (e.g., washing machine motor controls) from inductive kickback. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to motor driver ICs to absorb energy from flyback diodes and parasitic inductance. Use Value: Fast response time and low dynamic impedance ensure sub-100 ns clamping, suppressing ringing that could cause false triggering or latch-up. |
Use Scenario: Protecting Ethernet PHYs and RS-485 transceivers in networked building automation devices from ESD and induced surges on unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: Secondary-level protection stage following gas discharge tube (GDT) primary suppression in multi-stage telecom surge schemes. Use Value: Low capacitance (<100 pF typical) avoids signal integrity degradation at 100 Mbps Ethernet speeds while providing precise low-voltage clamping. |
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 (SMB), 8.5 V VWM, 14.4 V VC @ 27.8 A, same 400 W rating but higher IPPM tolerance due to larger thermal mass | Surface-mount footprint; requires PCB rework for through-hole replacement; better suited for high-density layouts | Select SMBJ8.5CA when board space is constrained and SMT assembly is available; not drop-in compatible with DO-41 socketed designs |
| P6KE8.5CA | DO-15 package, identical VWM/VBR/VC specs, but lower 600 W peak power rating and higher 150 °C TJ max (vs. 175 °C) | Larger DO-15 body increases creepage/clearance; less suitable for high-temp under-hood locations | Choose P6KE8.5CA only for cost-sensitive commercial applications where AEC-Q101 qualification and extended temperature range are not required |
Compared with SMBJ8.5CA and P6KE8.5CA, BZW04-8V5BHE3/54 delivers AEC-Q101 qualification, +175 °C operation, and DO-41 axial form factor optimized for manual assembly, legacy board upgrades, and high-reliability automotive harness interfaces - making it the preferred choice where qualification, thermal margin, and through-hole serviceability are prioritized.
Availability
BZW04-8V5BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC analog inputs, and consumer appliance motor drive circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for BZW04-8V5BHE3/54 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The BZW04 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure - balancing clamping performance, thermal robustness, and qualification rigor.
FAQ
What is the clamping voltage of BZW04-8V5BHE3/54 under maximum surge conditions?
The BZW04-8V5BHE3/54 exhibits a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 27.6 A using the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees consistent overvoltage limiting for downstream components such as microcontrollers or interface ICs. The clamping behavior remains symmetrical in both directions due to its bidirectional construction.
Is BZW04-8V5BHE3/54 suitable for automotive applications?
Yes, BZW04-8V5BHE3/54 is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 16-Sep-2021 (Document Number: 88316). It undergoes stress testing for high-temperature operating life, temperature cycling, and ESD robustness required for automotive electronics. Its +175 °C maximum junction temperature and DO-41 mechanical stability make it appropriate for engine bay, chassis, and ADAS sensor module deployments.
How does the bidirectional design of BZW04-8V5BHE3/54 affect its circuit implementation?
The bidirectional architecture of BZW04-8V5BHE3/54 means it conducts identically in both forward and reverse bias above VBR, eliminating polarity sensitivity. This allows direct placement across AC-coupled lines, differential buses (e.g., RS-485), or floating sensor outputs without regard to anode/cathode orientation. Unlike unidirectional TVS diodes, BZW04-8V5BHE3/54 has no color band marking - simplifying assembly and reducing misorientation risk.
What is the maximum reverse leakage current specified for BZW04-8V5BHE3/54 at its standoff voltage?
At its 8.55 V standoff voltage (VWM) and ambient temperature of 25 °C, BZW04-8V5BHE3/54 specifies a maximum reverse leakage current (ID) of 10 μA. This low leakage preserves signal integrity in high-impedance sensor paths and minimizes quiescent power draw in battery-operated systems - a critical parameter for precision analog front-ends and always-on monitoring circuits.
Does BZW04-8V5BHE3/54 require heatsinking for standard 400 W surge handling?
No additional heatsinking is required for single-event 400 W surge handling, as the BZW04-8V5BHE3/54 is rated for this power level under the defined 10/1000 μs waveform with 0.01 % duty cycle. Its DO-41 package relies on lead conduction for thermal dissipation, and the 1.5 W steady-state power rating (PD) applies only to continuous DC or low-frequency conditions - not transient suppression duty.
BZW04-8V5BHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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)
BZW04-8V5BHE3/54 FAQ
1.How can I place an order for BZW04-8V5BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-8V5BHE3/54 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 BZW04-8V5BHE3/54 reliable?
The price and inventory of BZW04-8V5BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-8V5BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-8V5BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-8V5BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-8V5BHE3/54?
BZW04-8V5BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-8V5BHE3/54 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 BZW04-8V5BHE3/54?
For technical support, including BZW04-8V5BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-8V5BHE3/54 requirements.
6.How does Aetrix verify that BZW04-8V5BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-8V5BHE3/54 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 BZW04-8V5BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-8V5BHE3/54?
All BZW04-8V5BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-8V5BHE3/54, 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 BZW04-8V5BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04-8V5BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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