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Vishay General Semiconductor - Diodes Division BZW04P31HE3/54
- Part No.:
- BZW04P31HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P31HE3/54.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,696
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Product details
Overview
BZW04P31HE3/54 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 30.8 V stand-off voltage (VWM), 49.9 V clamping voltage (VC) at 8.0 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P31HE3/54 datasheet, BZW04P31HE3/54 pinout, BZW04P31HE3/54 application, or BZW04P31HE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) axial package, bi-directional symmetry, low 0.099 %/°C VBR temperature coefficient, and 175 °C maximum junction temperature for under-hood and high-reliability environments.
Technical Context
This device operates as a bi-directional avalanche diode, clamping transients in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
Rated for 400 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, it derates linearly above 25 °C per Fig. 2 and supports repetitive surge duty cycles up to 0.01 %. The 1.5 W steady-state power dissipation (PD) and -55 °C to +175 °C operating range support wide-temperature deployment in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 34.2 V / 39.6 V at 1 mA - Confirmed breakdown voltage range; ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 49.9 V at 8.0 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum transient exposure level. |
| PPPM | 400 W - Peak pulse power handling capability; validates suitability for IEC 61000-4-5 Level 3/4 surge immunity designs. |
| TJ max. | +175 °C - Maximum junction temperature; enables use in engine control units and industrial motor drives without thermal derating penalties. |
| AEC-Q101 | Qualified - Certified for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports PPAP compliance. |
| RoHS / Whisker | RoHS-compliant HE3 suffix; meets JESD201 Class 2 whisker resistance - suitable for lead-free reflow and long-life reliability-critical assemblies. |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, molded epoxy case meeting UL 94 V-0. Matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards. Bi-directional construction means no cathode marking; terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either end serves as input/output terminal; no polarity dependency - simplifies PCB layout and eliminates orientation errors. |
| Lead 1 | Terminal A | Connected directly to P+ diffusion region; forms one side of the avalanche junction - requires no external biasing or direction control. |
| Lead 2 | Terminal B | Connected directly to N+ substrate; completes the bi-directional junction - enables identical clamping performance in either direction. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Eliminates surface contamination sensitivity and improves long-term stability of VBR under humidity and thermal cycling. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 combination wave testing up to 2 Ω source impedance without failure. |
| AEC-Q101 qualification | Validates reliability for automotive applications including body control modules, ADAS sensor interfaces, and infotainment power rails. |
| Low temperature coefficient (0.099 %/°C) | Minimizes VBR drift across -40 °C to +125 °C ambient - critical for precision clamping in wide-temperature systems. |
| DO-204AL mechanical robustness | Withstands 275 °C solder dip (10 s) and meets JESD22-B106; compatible with wave and selective soldering processes. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed across differential signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during 12 V/24 V system load dump events (ISO 7637-2 Pulse 5a). |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Standoff-connected TVS on channel input lines to shunt >1 kV transients before reaching optocoupler or Schmitt trigger input stages. Use Value: Enables >100,000 surge cycles without parameter shift - verified per AEC-Q101 HTRB and TCT requirements. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Secondary-side transient suppression on Ethernet PHY power rails and RS-485 data lines in network switches and base stations. IC Role / Device Role / Timing Role: Fast-response bi-directional clamp limiting common-mode surges to <50 V peak while preserving signal integrity up to 10 Mbps. Use Value: Meets GR-1089-CORE Level 3 surge immunity with <1 ns response time and <0.5 pF junction capacitance at zero bias. |
Use Scenario: Input-stage protection on USB-C and barrel-jack power inputs of smart speakers, set-top boxes, and IoT hubs exposed to user-handling ESD. IC Role / Device Role / Timing Role: Primary-level TVS placed between input connector and DC-DC converter input capacitor to absorb ±15 kV contact ESD (IEC 61000-4-2). Use Value: Clamps ESD pulses to <60 V within 1 ns - well below 65 V MOSFET gate oxide breakdown threshold in upstream power switches. |
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; 53.3 V VC @ 7.5 A; same 400 W PPPM rating but higher junction capacitance (≈150 pF vs. <5 pF at zero bias). | Less suitable for high-speed data lines due to higher capacitance; preferred for lower-frequency power rail protection. | Select SMBJ33CA only when board space allows SMC/SMB footprint and signal bandwidth <1 MHz. |
| 1.5KE33CA | DO-201AD package; 33 V VWM; 53.3 V VC @ 7.5 A; 1500 W PPPM rating but larger size and slower response (>5 ns). | Used in legacy AC mains and high-energy industrial surge protectors where physical size and response time are secondary to energy absorption. | Choose 1.5KE33CA only when protecting non-sensitive downstream circuitry with >100 ns timing margins and ≥1 cm creepage requirements. |
Compared with SMBJ33CA and 1.5KE33CA, BZW04P31HE3/54 offers superior high-speed signal integrity (sub-5 pF capacitance), compact DO-41 form factor for dense layouts, and AEC-Q101 validation - making it the optimal choice for automotive and industrial edge-node designs requiring both reliability and bandwidth.
Availability
BZW04P31HE3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom line interface applications requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for BZW04P31HE3/54 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 passive components with emphasis on reliability, efficiency, and automotive-grade qualification.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and precise clamping performance are mandatory.
FAQ
What is the clamping voltage of BZW04P31HE3/54 at its rated peak pulse current?
The BZW04P31HE3/54 has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains below critical voltage thresholds during surge events. The clamping performance is consistent across both polarities due to its bi-directional architecture.
Is BZW04P31HE3/54 qualified for automotive applications?
Yes, BZW04P31HE3/54 is AEC-Q101 qualified - explicitly confirmed by the "HE3" suffix per Vishay documentation. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TCT), and ESD (HBM/MM), making it suitable for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS sensor interfaces.
What package type does BZW04P31HE3/54 use, and what are its key mechanical attributes?
BZW04P31HE3/54 uses the DO-204AL (DO-41) axial package: 2.0–2.7 mm lead diameter, 4.1–5.2 mm body diameter, and minimum 25.4 mm overall length. Its molded epoxy case meets UL 94 V-0 flammability rating, and matte tin-plated leads comply with J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
How does the bi-directional nature of BZW04P31HE3/54 affect PCB layout and circuit design?
The bi-directional structure of BZW04P31HE3/54 eliminates polarity marking - no cathode band is present, and either lead may connect to either side of a differential line or supply rail. This simplifies layout, avoids orientation-related assembly errors, and enables symmetric placement across balanced signal paths like RS-485 or CAN without additional routing constraints.
What is the maximum junction temperature and thermal derating behavior of BZW04P31HE3/54?
BZW04P31HE3/54 has a maximum junction temperature (TJ max.) of +175 °C and follows linear thermal derating above TA = 25 °C per Figure 2 in the datasheet. At 100 °C ambient, its peak pulse power capability reduces to ≈280 W (70 % of 400 W), while its 1.5 W steady-state power dissipation remains valid only with adequate heatsinking at TL = 75 °C.
BZW04P31HE3/54 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:
- Obsolete
- 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)
BZW04P31HE3/54 FAQ
1.How can I place an order for BZW04P31HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P31HE3/54 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 BZW04P31HE3/54 reliable?
The price and inventory of BZW04P31HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P31HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P31HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P31HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P31HE3/54?
BZW04P31HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P31HE3/54 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 BZW04P31HE3/54?
For technical support, including BZW04P31HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P31HE3/54 requirements.
6.How does Aetrix verify that BZW04P31HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P31HE3/54 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 BZW04P31HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P31HE3/54?
All BZW04P31HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P31HE3/54, 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 BZW04P31HE3/54 part is unused and in its original packaging.
Return procedure for BZW04P31HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P31HE3/54 Tags
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