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Vishay General Semiconductor - Diodes Division BZW04-31HE3/54
- Part No.:
- BZW04-31HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-31HE3/54.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,972
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Product details
Overview
BZW04-31HE3/54 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 30.8 V stand-off voltage (VWM), 34.2–37.8 V breakdown voltage (VBR) at 1 mA, 49.9 V clamping voltage (VC) at 8.0 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 BZW04-31HE3/54 datasheet, BZW04-31HE3/54 pinout, BZW04-31HE3/54 application, or BZW04-31HE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, bidirectional polarity, DO-41 mechanical compatibility, low 0.099 %/°C VBR temperature coefficient, and verified 1.0 μA reverse leakage at VWM.
Technical Context
This device operates as a voltage-clamped surge protector using an avalanche junction structure, with symmetrical bidirectional conduction enabling protection against both positive and negative transients without polarity sensitivity. Its glass-passivated chip junction ensures stable breakdown behavior and long-term reliability under repetitive surge stress.
The BZW04-31HE3/54 delivers 400 W peak pulse power handling per 10/1000 μs waveform at TA = 25 °C, derated linearly above 25 °C per Fig. 2, and maintains clamping performance across -55 °C to +175 °C operating junction temperature range. It exhibits 0.099 %/°C VBR temperature coefficient and 1.0 μA maximum reverse leakage at 30.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin for protected circuitry. |
| VBR (min/max) | 34.2 V / 37.8 V at 1 mA - Verified breakdown threshold range ensuring consistent turn-on during transients. |
| VC @ IPPM | 49.9 V at 8.0 A - Clamped voltage during full-rated 400 W surge; determines maximum stress on downstream components. |
| PPPM | 400 W - Peak pulse power capability with 10/1000 μs waveform; supports high-energy ESD and lightning-induced surges. |
| IPPM | 8.0 A - Peak pulse current corresponding to VC; used to size series impedance and verify system-level surge compliance. |
| TJ max. | +175 °C - Maximum junction temperature enabling operation in under-hood automotive and high-ambient industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per AEC standard. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; matte tin-plated terminals solderable per J-STD-002 and JESD22-B102; no polarity marking (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; no cathode band - enables blind-mount installation in AC-coupled or differential signal paths. |
| Lead 1 / Lead 2 | PCB interconnect interface | 0.028–0.034 inch diameter axial leads; compatible with standard DO-41 footprints and wave-solder processes up to 275 °C for 10 s. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term parameter drift < ±5 % over 1000 hrs at TJ = 125 °C. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge testing when combined with appropriate series impedance. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor modules. |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment enclosures. |
| JESD201 class 2 whisker resistance (HE3 suffix) | Prevents tin whisker growth in high-reliability applications with >10-year field life expectations. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and MEMS pressure sensors from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching sensitive analog front-end ICs. Use Value: Maintains signal integrity under 12 V/24 V system surges up to ±35 V; enables compliance with ISO 7637-2 Pulse 1/2/5a without additional filtering. |
Use Scenario: Safeguarding 4–20 mA current-loop inputs in programmable logic controllers exposed to field wiring transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminals, coordinated with series current-limiting resistor and optional gas discharge tube. Use Value: Limits transient voltage to ≤49.9 V during 8 A surges, preventing op-amp saturation and ADC damage in 24 V-powered analog signal chains. |
| Telecom Line Interface | Consumer Appliance Motor Control |
|
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station backhaul equipment from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Secondary protection stage after GDT or choke-based primary suppression; handles residual fast-rising edge energy. Use Value: Sub-1 ns response time clamps transients before IC internal ESD structures activate, reducing cumulative degradation risk. |
Use Scenario: Guarding microcontroller GPIOs and gate drivers in washing machine motor inverters against commutation spikes. IC Role / Device Role / Timing Role: Localized TVS across half-bridge driver supply rails and feedback sensing nodes to suppress 600 V/μs dv/dt events. Use Value: Withstands repetitive 400 W pulses at 0.01 % duty cycle, supporting continuous operation in variable-speed drive environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | DO-214AA package; 33 V VWM, 49.9 V VC at 8.1 A; same PPPM but higher IPPM tolerance due to larger thermal mass. | Surface-mount footprint; better suited for automated assembly and space-constrained PCBs. | Select SMBJ33CA when board real estate is limited and reflow compatibility is required; not drop-in for through-hole DO-41 layouts. |
| P6KE33CA | DO-15 package; identical VWM/VC specs but lower 350 W PPPM; 10/1000 μs rating derated more aggressively above 25 °C. | Legacy through-hole alternative with lower surge margin; widely stocked but not AEC-Q101 qualified. | Choose P6KE33CA only for cost-sensitive commercial designs where AEC-Q101 is not mandated and 350 W peak power suffices. |
Compared with BZW04-31HE3/54, SMBJ33CA offers superior mountability and thermal robustness in SMT systems, while P6KE33CA provides legacy compatibility at reduced surge capability and automotive qualification - making BZW04-31HE3/54 the optimal choice for new AEC-Q101-compliant through-hole designs requiring full 400 W margin.
Availability
BZW04-31HE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, and telecom line conditioning requiring stable component supply, AEC-Q101 traceability, and DO-41 mechanical compatibility.
Supply support for BZW04-31HE3/54 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 compliance, stable clamping, and long-term parameter stability are critical.
FAQ
What is the polarity configuration of BZW04-31HE3/54?
BZW04-31HE3/54 is a bidirectional TVS diode with symmetrical terminal characteristics - neither lead is marked, and it conducts identically in both directions. This eliminates orientation concerns during assembly and makes it ideal for AC signal lines, differential buses, and ungrounded protection schemes where polarity cannot be guaranteed.
Is BZW04-31HE3/54 qualified for automotive use?
Yes, BZW04-31HE3/54 carries the HE3 suffix, confirming full AEC-Q101 qualification per Vishay Document Number 88316. It has passed stress tests including high-temperature reverse bias, temperature cycling, and surge endurance - validating its suitability for engine control, body electronics, and ADAS subsystems.
What does the "/54" in BZW04-31HE3/54 indicate?
The "/54" denotes the preferred package code for BZW04-31HE3/54: 13-inch diameter paper tape and reel, with a base quantity of 550 units per reel. This packaging format supports automated pick-and-place assembly and is standard for high-volume manufacturing of automotive and industrial electronics.
How does BZW04-31HE3/54 compare to unidirectional variants like BZW04-31E3/54?
BZW04-31HE3/54 differs from unidirectional BZW04-31E3/54 in polarity and forward voltage behavior: it lacks a cathode band, supports symmetrical clamping, and has no defined VF specification (unlike the 3.5 V VF of unidirectional versions). Its design purpose is exclusively for bidirectional surge suppression where polarity reversal is possible.
What is the maximum allowable lead temperature during soldering for BZW04-31HE3/54?
The maximum solder dip temperature for BZW04-31HE3/54 is 275 °C for up to 10 seconds, per JESD22-B106. This limit applies to wave soldering; for reflow, follow JEDEC J-STD-020 profiles appropriate for DO-41 packages, ensuring peak temperature does not exceed 260 °C for < 10 s to preserve glass passivation integrity.
BZW04-31HE3/54 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 8A
- 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)
BZW04-31HE3/54 FAQ
1.How can I place an order for BZW04-31HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-31HE3/54 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 BZW04-31HE3/54 reliable?
The price and inventory of BZW04-31HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-31HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-31HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-31HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-31HE3/54?
BZW04-31HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-31HE3/54 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 BZW04-31HE3/54?
For technical support, including BZW04-31HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-31HE3/54 requirements.
6.How does Aetrix verify that BZW04-31HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-31HE3/54 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 BZW04-31HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-31HE3/54?
All BZW04-31HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-31HE3/54, 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 BZW04-31HE3/54 part is unused and in its original packaging.
Return procedure for BZW04-31HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-31HE3/54 Tags
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