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Vishay General Semiconductor - Diodes Division BZW04-9V4-E3/54
- Part No.:
- BZW04-9V4-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-9V4-E3/54.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,639
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Product details
Overview
BZW04-9V4-E3/54 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 9.4 V stand-off voltage (VWM), 10.5–11.6 V breakdown voltage (VBR) at 1 mA, 15.6 V clamping voltage (VC) at 25.7 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 BZW04-9V4-E3/54 datasheet, BZW04-9V4-E3/54 pinout, BZW04-9V4-E3/54 application, or BZW04-9V4-E3/54 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified TVS for bidirectional transient suppression in DC power rails, analog sensor inputs, and low-voltage communication lines where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.43), and stable temperature coefficient (0.075 %/°C) are critical.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering identical clamping behavior for positive and negative transients. Its glass-passivated junction ensures stable leakage performance (<5 μA at VWM) and repeatable breakdown characteristics across temperature (–55 °C to +175 °C).
The device uses a 10/1000 μs surge waveform standard per ANSI/IEEE C62.35, with peak pulse current derated linearly above 25 °C ambient per Fig. 2. Its low incremental surge resistance enables effective energy diversion without significant voltage overshoot during ESD or inductive switching events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.4 V - maximum continuous reverse working voltage before conduction begins; defines safe operating margin for 9 V nominal supply rails. |
| VBR (min/max) | 10.5 V / 11.6 V at 1 mA - precise breakdown threshold ensuring reliable triggering without premature conduction under normal operation. |
| VC @ IPPM | 15.6 V at 25.7 A - clamped voltage during worst-case 400 W transient; limits downstream IC stress to safe levels. |
| PPPM | 400 W - peak pulse power handling capability with 10/1000 μs waveform; supports high-energy lightning and load-dump surges. |
| IPPM | 25.7 A - maximum non-repetitive surge current; determines minimum trace width and PCB layout robustness required. |
| TJmax | +175 °C - maximum junction temperature enabling operation in under-hood automotive and industrial environments. |
| Temp. Coeff. of VBR | 0.075 %/°C - low drift ensures stable clamping across temperature; critical for precision analog front-ends. |
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 (unmarked end) | Current entry point in forward bias; common node in bidirectional configuration | No polarity marking on BZW04-9V4-E3/54 - symmetrical terminals enable flexible PCB placement without orientation constraints. |
| Cathode (unmarked end) | Current exit point in forward bias; common node in bidirectional configuration | Identical electrical behavior in both directions; no cathode band - distinguishes it from unidirectional variants like BZW04-9V4. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable leakage (<5 μA at VWM) and long-term reliability under thermal cycling and humidity stress. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line) surge immunity without external series impedance. |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
| Low clamping ratio (VC/VBR = 1.43) | Minimizes voltage overshoot during transients, protecting 12 V-tolerant logic and analog components downstream. |
| RoHS-compliant (E3 suffix) | Meets JESD201 Class 1A whisker resistance; suitable for lead-free reflow and wave soldering up to 275 °C for 10 s. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Inputs |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and temperature/pressure sensors from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly across sensor supply pins or signal lines to shunt transients before they reach ASIC inputs. Use Value: Maintains VWM = 9.4 V margin below 12 V battery rail while clamping to ≤15.6 V - preventing latch-up in 16 V-rated interface ICs. |
Use Scenario: Safeguarding 4–20 mA current loop receivers and ±10 V analog input stages in programmable logic controllers against field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminals, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Delivers sub-1 ns response and <5 μA leakage at 9.4 V - preserving signal integrity and measurement accuracy in 16-bit ADC systems. |
| Consumer Power Adapter Outputs | Telecom Line Interface Circuits |
|
Use Scenario: Secondary-side transient suppression on 5–9 V DC outputs of wall adapters and USB-C PD power supplies. IC Role / Device Role / Timing Role: Final-stage TVS between output capacitor and connector, absorbing coupling noise from AC mains or nearby switching regulators. Use Value: 400 W rating handles repetitive 100 kHz burst noise; DO-41 form factor allows manual or automated through-hole assembly in cost-sensitive designs. |
Use Scenario: Protecting Ethernet PHYs, DSL line drivers, and POTS interface ICs from induced lightning surges on twisted-pair cables. IC Role / Device Role / Timing Role: Differential-mode suppressor bridging tip/ring or data pair lines, often paired with common-mode chokes. Use Value: Symmetrical bidirectional behavior ensures equal clamping on positive/negative surges - essential for balanced line protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Unidirectional; 9.0 V VWM, 14.4 V VC @ 27.8 A; SMC package (surface-mount) | Requires polarity-aware layout; better suited for space-constrained PCBs with automated assembly. | Select SMBJ9.0A when board real estate is limited and unidirectional protection suffices with explicit grounding strategy. |
| P6KE9.1A | Unidirectional; 9.1 V VWM, 14.4 V VC @ 27.8 A; DO-15 package (larger than DO-41, higher thermal mass) | Higher IFSM (100 A vs. 40 A) but slower response due to larger junction capacitance (~100 pF vs. ~50 pF). | Choose P6KE9.1A only if legacy DO-15 footprint compatibility or higher single-pulse surge margin is prioritized over speed. |
Compared with SMBJ9.0A and P6KE9.1A, BZW04-9V4-E3/54 offers bidirectional symmetry in a compact DO-41 through-hole package with lower junction capacitance and AEC-Q101 qualification - making it optimal for new automotive and industrial designs requiring polarity-agnostic protection and proven reliability.
Availability
BZW04-9V4-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog I/O protection, and telecom line circuits requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZW04-9V4-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 application-specific optimization.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and communications infrastructure applications demanding AEC-Q101 compliance and stable parametric performance.
FAQ
What is the polarity configuration of BZW04-9V4-E3/54?
BZW04-9V4-E3/54 is a bidirectional TVS diode with no polarity marking on its DO-41 package. Unlike unidirectional variants (e.g., BZW04-9V4), it provides symmetrical clamping in both voltage polarities - ideal for AC-coupled lines or differential signals where transient direction is unpredictable. This eliminates orientation errors during assembly and simplifies design reuse across signal types.
Does BZW04-9V4-E3/54 meet AEC-Q101 requirements?
Yes, BZW04-9V4-E3/54 meets AEC-Q101 qualification when ordered with the HE3 suffix (e.g., BZW04-9V4HE3/54). The E3/54 variant is RoHS-compliant and commercial-grade; for automotive use, specify the HE3 version to ensure full stress testing including temperature cycling, mechanical shock, and humidity exposure per AEC-Q101 Rev D.
What is the maximum clamping voltage of BZW04-9V4-E3/54 under surge conditions?
The maximum clamping voltage (VC) of BZW04-9V4-E3/54 is 15.6 V at 25.7 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by protected circuitry during worst-case transient events - critical for verifying compatibility with downstream IC absolute maximum ratings.
How does the temperature coefficient affect BZW04-9V4-E3/54 performance?
BZW04-9V4-E3/54 has a VBR temperature coefficient of +0.075 %/°C, meaning its breakdown voltage increases by approximately 8.4 mV/°C above 25 °C. This low drift ensures predictable clamping behavior across –55 °C to +175 °C operating range - vital for maintaining protection margins in under-hood automotive or industrial control cabinet environments.
Can BZW04-9V4-E3/54 be used in place of unidirectional TVS diodes?
BZW04-9V4-E3/54 can replace unidirectional TVS diodes only in applications where bidirectional clamping is acceptable and beneficial - such as AC signal lines, differential buses, or floating power domains. It must not substitute unidirectional parts in DC circuits with defined ground reference unless circuit topology explicitly supports symmetrical conduction, as forward voltage drop and leakage behavior differ.
BZW04-9V4-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 25.7A
- 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)
BZW04-9V4-E3/54 FAQ
1.How can I place an order for BZW04-9V4-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-9V4-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 BZW04-9V4-E3/54 reliable?
The price and inventory of BZW04-9V4-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 BZW04-9V4-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-9V4-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-9V4-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-9V4-E3/54?
BZW04-9V4-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-9V4-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 BZW04-9V4-E3/54?
For technical support, including BZW04-9V4-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-9V4-E3/54 requirements.
6.How does Aetrix verify that BZW04-9V4-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-9V4-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 BZW04-9V4-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-9V4-E3/54?
All BZW04-9V4-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-9V4-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 BZW04-9V4-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-9V4-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-9V4-E3/54 Tags
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