My Inquiry
My Account
Vishay General Semiconductor - Diodes Division BZW04-8V5B-E3/54
- Part No.:
- BZW04-8V5B-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-8V5B-E3/54.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,116
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZW04-8V5B-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features a 8.55 V standoff voltage (VWM), 9.50–10.5 V breakdown voltage (VBR) at 1 mA test current, 14.5 V maximum clamping voltage (VC) at 27.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect sensor interfaces and microcontroller I/O in automotive body electronics.
For engineers reviewing the BZW04-8V5B-E3/54 datasheet, BZW04-8V5B-E3/54 pinout, BZW04-8V5B-E3/54 application, or BZW04-8V5B-E3/54 equivalent, key selection criteria include bidirectional clamping capability, low leakage (<10 μA at VWM), AEC-Q101 qualification, DO-41 mechanical compatibility, and thermal derating behavior above 25 °C ambient.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical avalanche breakdown in both polarities, enabling protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable VBR tolerance and low incremental surge resistance, critical for consistent clamping under repetitive transients.
The 10/1000 μs waveform compliance and 0.01 % duty cycle rating define its transient handling envelope, while the -55 °C to +175 °C operating junction temperature range supports deployment in under-hood automotive environments. Thermal derating follows a linear curve above TA = 25 °C, with full 400 W capability only at ambient ≤25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - Maximum continuous reverse working voltage before clamping begins; sets upper limit for normal signal swing in protected circuit. |
| VBR min/max | 9.50 V / 10.5 V at 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on within 10 % tolerance during overvoltage events. |
| VC @ IPPM | 14.5 V at 27.6 A - Clamped voltage seen by downstream IC during worst-case 400 W transient; defines maximum stress on protected load. |
| PPPM | 400 W - Peak pulse power dissipation capability with standard 10/1000 μs surge waveform; validates suitability for ISO 7637-2 Pulse 1/2a/3a testing. |
| ID @ VWM | 10 μA - Reverse leakage current at rated standoff voltage; low enough to avoid signal distortion or bias shift in high-impedance sensor nodes. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in engine compartment or power supply rails with minimal heatsinking. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per AEC stress test plan. |
Pinout & Package
Package: DO-41 (DO-204AL), 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. No polarity marking - bidirectional symmetry confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; no cathode band - enables placement without orientation check in PCB layout. |
| Lead 1 / Lead 2 | Connection interface | Leads serve as mechanical and electrical interface; 0.028–0.034 inch diameter supports standard DO-41 footprint and wave-soldering processes. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and temperature; eliminates surface degradation mechanisms that cause drift in non-passivated TVS devices. |
| 400 W peak pulse power (10/1000 μs) | Validates immunity to common automotive load dump and inductive switching surges per ISO 7637-2 without thermal runaway. |
| AEC-Q101 qualification | Confirms suitability for automotive applications requiring extended temperature operation, vibration resistance, and long-term reliability. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V or 5 V logic interfacing with external connectors. |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosure environments; required for under-hood and infotainment module certifications. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure or temperature sensors in engine control modules exposed to alternator load dump and relay coil flyback. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and MCU ADC input to limit transient excursions beyond absolute maximum ratings. Use Value: Prevents ADC saturation and latch-up during 100 V/50 ms load dump events while maintaining <10 μA leakage to preserve sensor accuracy. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers connected to 24 V DC field wiring subject to ESD and inductive kick. IC Role / Device Role / Timing Role: Fast-response TVS shunting surge energy away from optocoupler input stages and level-shifting buffers. Use Value: Enables >30 kV contact ESD immunity per IEC 61000-4-2 without degrading signal rise time due to low junction capacitance (<100 pF). |
| Consumer Appliance Motor Control | Telecom Line Interface |
Use Scenario: Shielding microcontroller GPIOs driving brushed DC motors in washing machines from commutation spikes and brush arcing. IC Role / Device Role / Timing Role: Low-leakage bidirectional suppressor mounted at motor driver IC output pins to absorb repetitive 400 W transients. Use Value: Extends MCU lifetime by limiting peak clamped voltage to 14.5 V - well below 20 V absolute maximum rating of most 5 V I/O cells. |
Use Scenario: Protecting RS-485 transceiver inputs on base station backhaul equipment connected to outdoor cabling vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Primary front-end clamping device on differential bus lines, coordinated with secondary GDT or MOV stages. Use Value: Provides sub-1 ns response time and 14.5 V clamping to prevent transceiver latch-up during 1 kV/1.2/50 μs common-mode surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.5CA | DO-214AA package (SMB), 8.5 V VWM, 15.0 V VC @ 25.4 A - slightly higher clamping voltage and lower IPPM than BZW04-8V5B-E3/54. | Surface-mount alternative; requires PCB rework for through-hole replacement; better suited for space-constrained designs. | Select SMBJ8.5CA when board real estate is limited and reflow assembly is available; verify thermal pad design for 1.5 W steady-state dissipation. |
| P6KE8.5CA | DO-15 package, same VWM and VC specs, but 5.0 W steady-state power rating vs. 1.5 W - larger thermal mass and higher surge margin. | Through-hole compatible but longer lead form factor; preferred for high-reliability industrial power supplies with frequent surge exposure. | Choose P6KE8.5CA where long-term surge endurance and higher PD derating margin are prioritized over compact DO-41 footprint. |
Compared with SMBJ8.5CA and P6KE8.5CA, the BZW04-8V5B-E3/54 offers optimal balance of AEC-Q101 qualification, DO-41 mechanical fit, and 400 W transient capacity - making it the preferred choice for automotive and cost-sensitive industrial through-hole designs requiring validated automotive reliability.
Availability
BZW04-8V5B-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer appliance motor drivers, and telecom line protection requiring stable component supply across production lifecycles.
Supply support for BZW04-8V5B-E3/54 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 automotive-grade qualification.
The BZW04 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where voltage surges threaten system integrity.
FAQ
What is the polarity configuration of BZW04-8V5B-E3/54?
The BZW04-8V5B-E3/54 is a bidirectional TVS diode with symmetrical avalanche characteristics in both directions. It has no polarity marking on the DO-41 package, and both terminals perform identically - eliminating orientation constraints during PCB assembly and enabling use in AC-coupled or floating signal paths without risk of reverse connection damage.
Is BZW04-8V5B-E3/54 qualified for automotive applications?
Yes, BZW04-8V5B-E3/54 carries the HE3 suffix variant for AEC-Q101 qualification, and the E3/54 part is RoHS-compliant and manufactured to the same process flow. While the specific E3/54 reel packaging is commercial-grade, the die and construction meet AEC-Q101 requirements - confirmed by Vishay's qualification documentation for the BZW04-8V5B family.
What is the maximum clamping voltage of BZW04-8V5B-E3/54 under surge conditions?
The BZW04-8V5B-E3/54 exhibits a maximum clamping voltage (VC) of 14.5 V at its rated peak pulse current (IPPM) of 27.6 A, measured using the standardized 10/1000 μs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream ICs remain within their absolute maximum voltage ratings.
How does thermal derating affect the 400 W rating of BZW04-8V5B-E3/54?
The 400 W peak pulse power rating of BZW04-8V5B-E3/54 applies only at TA = 25 °C. Above this temperature, power capability decreases linearly per Vishay's Fig. 2 derating curve - dropping to approximately 200 W at 100 °C ambient. Engineers must apply this derating when designing for high-temperature enclosures or under-hood automotive locations to avoid junction overheating during repetitive surges.
Can BZW04-8V5B-E3/54 replace unidirectional TVS diodes in existing designs?
No - BZW04-8V5B-E3/54 is strictly bidirectional and cannot substitute for unidirectional TVS diodes in DC-biased circuits where forward conduction must be blocked. Its symmetrical V-I curve allows conduction in both directions, making it unsuitable for protecting DC power rails unless paired with series blocking components. Always verify circuit topology and bias conditions before substitution.
BZW04-8V5B-E3/54 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04-8V5B-E3/54 FAQ
1.How can I place an order for BZW04-8V5B-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-8V5B-E3/54 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 BZW04-8V5B-E3/54 reliable?
The price and inventory of BZW04-8V5B-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-8V5B-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-8V5B-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-8V5B-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-8V5B-E3/54?
BZW04-8V5B-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-8V5B-E3/54 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 BZW04-8V5B-E3/54?
For technical support, including BZW04-8V5B-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-8V5B-E3/54 requirements.
6.How does Aetrix verify that BZW04-8V5B-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-8V5B-E3/54 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 BZW04-8V5B-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-8V5B-E3/54?
All BZW04-8V5B-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-8V5B-E3/54, 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 BZW04-8V5B-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-8V5B-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-8V5B-E3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
