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Vishay General Semiconductor - Diodes Division BZW04P33BHE3/54
- Part No.:
- BZW04P33BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P33BHE3/54.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,427
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Product details
Overview
BZW04P33BHE3/54 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 33.3 V stand-off voltage (VWM), 53.9 V clamping voltage (VC) at 7.4 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed to safeguard MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in industrial and automotive electronics.
For engineers reviewing the BZW04P33BHE3/54 datasheet, BZW04P33BHE3/54 pinout, BZW04P33BHE3/54 application, or BZW04P33BHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) package, bi-directional symmetry, low 0.1 % duty cycle surge rating, and verified clamping performance under repetitive 10/1000 μs pulses - critical for reliable front-end protection in harsh environments.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 37.1–42.9 V (min/max) under 1 mA test current, ensuring consistent clamping behavior regardless of transient polarity. Its glass-passivated junction delivers fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of fast-rising transients such as ESD (IEC 61000-4-2) and inductive kickback.
The device is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient, supporting operation in under-hood automotive and industrial control cabinets. Its 1.5 W steady-state power dissipation (PD) and 0.67 μA max reverse leakage at VWM allow integration into low-power monitoring circuits without thermal or bias-current compromise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - Maximum continuous working voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (min/max) | 37.1 V / 42.9 V at 1 mA - Ensures predictable turn-on across production lot; guarantees clamping initiates no later than 42.9 V. |
| VC @ IPPM | 53.9 V at 7.4 A - Clamped voltage during 10/1000 μs surge; limits downstream stress to ≤53.9 V under worst-case 400 W transient. |
| PPPM | 400 W - Peak pulse power handling per 10/1000 μs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity. |
| TJ max. | 175 °C - Enables use in high-temperature environments (e.g., engine control units) with standard PCB layout and no forced cooling. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
| RoHS / Whisker | RoHS-compliant (HE3 suffix); JESD201 Class 2 whisker-resistant matte tin plating - suitable for lead-free reflow and long-term field deployment. |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Leads are matte tin-plated, solderable per J-STD-002 and JESD22-B102. Bi-directional construction means no polarity marking; terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No cathode band; either lead serves as anode or cathode depending on transient polarity - simplifies PCB layout and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables <1 ns response time and stable VBR over lifetime - critical for suppressing nanosecond-scale ESD events. |
| 400 W peak pulse power (10/1000 μs) | Supports repeated surge exposure in industrial motor drives without parameter drift or failure. |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics where reliability under thermal cycling and vibration is mandatory. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes protected circuit overvoltage margin - allows tighter design margins for 3.3 V or 5 V logic interfaces. |
| DO-41 mechanical robustness | Withstands 275 °C solder dip (10 s) and meets JESD22-B106 - compatible with high-throughput 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 alternator ripple in 12 V/24 V vehicle subsystems. IC Role / Device Role / Timing Role: Bi-directional clamping element placed at connector interface to shunt transients before they reach sensitive ASICs or microcontrollers. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 1/2a/5a while surviving >1000 surge cycles due to AEC-Q101 validation and low thermal impedance. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and AC line coupling in factory automation. IC Role / Device Role / Timing Role: Front-line transient suppressor on 24 V DC input channels, coordinated with series impedance to limit let-through energy. Use Value: Clamps 400 W surges to ≤53.9 V within nanoseconds, preventing false triggering or latch-up in optocoupler-isolated inputs. |
| Telecom Power Supply Clamp | Consumer Appliance Motor Control |
Use Scenario: Secondary-side overvoltage clamp on 48 V telecom power rails subject to hot-swap transients and lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC output to absorb residual energy after primary-stage MOV suppression. Use Value: 33.3 V VWM provides 10 % headroom above nominal 48 V rail while 53.9 V VC ensures downstream DC-DC converters remain within absolute maximum ratings. |
Use Scenario: Snubberless protection for half-bridge gate drivers in washing machine motor inverters subjected to inductive switching spikes. IC Role / Device Role / Timing Role: Bidirectional clamp across high-side/low-side MOSFET source-drain paths to suppress shoot-through-inducing voltage overshoot. Use Value: Symmetrical clamping prevents polarity-dependent failure modes; DO-41 package allows direct mounting near power stage with minimal trace inductance. |
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 | Same VWM (33.0 V) and VC (53.3 V), but SMC (DO-214AB) package - 1.6× larger footprint, higher thermal mass. | Better suited for high-volume automated assembly; less ideal for space-constrained through-hole designs. | Select SMBJ33CA only if surface-mount compatibility and higher IPC-7351B land pattern support are required. |
| P6KE33CA | Legacy 600 W rating (10/1000 μs), same DO-41 package, but wider VBR tolerance (35.1–38.8 V) and no AEC-Q101 qualification. | Lacks automotive qualification and exhibits higher clamping variance - acceptable for commercial-grade appliances but not safety-critical ECUs. | Choose P6KE33CA for cost-sensitive consumer products where AEC-Q101 is unnecessary and 600 W headroom is preferred. |
Compared with SMBJ33CA and P6KE33CA, BZW04P33BHE3/54 offers the optimal balance of AEC-Q101 compliance, tight VBR control (±7.5 %), and proven DO-41 reliability - making it the preferred choice for automotive and industrial designs requiring validated long-term surge endurance without footprint penalty.
Availability
BZW04P33BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power clamping, and appliance motor control circuits requiring stable component supply, AEC-Q101 assurance, and repeatable 400 W transient suppression performance.
Supply support for BZW04P33BHE3/54 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, and passive components for automotive, industrial, and computing markets.
The BZW04P series belongs to Vishay's TransZorb® TVS platform, engineered specifically for robust, bidirectional transient suppression in harsh electromagnetic environments - emphasizing low clamping ratio, AEC-Q101 compliance, and process-controlled VBR uniformity.
FAQ
What is the clamping voltage of BZW04P33BHE3/54 and how is it measured?
The BZW04P33BHE3/54 has a maximum clamping voltage (VC) of 53.9 V, measured at 7.4 A peak pulse current using the standardized 10/1000 μs double-exponential waveform per IEC 61000-4-5. This value is guaranteed across temperature and production lots, and reflects the actual voltage seen by protected circuitry during a worst-case surge event - not a theoretical or typical value.
Is BZW04P33BHE3/54 suitable for automotive applications?
Yes, BZW04P33BHE3/54 is AEC-Q101 qualified and manufactured with HE3 suffix (JESD201 Class 2 whisker resistance), making it approved for automotive powertrain, chassis, and body electronics. Its 175 °C TJ max, thermal derating curve, and validation across temperature cycling, HTRB, and ESD tests confirm suitability for under-hood and module-level deployment.
How does the bi-directional nature of BZW04P33BHE3/54 affect PCB layout?
The bi-directional construction of BZW04P33BHE3/54 eliminates polarity marking - there is no cathode band, and either lead functions identically. This removes orientation constraints during placement, reduces assembly errors, and simplifies routing in differential or AC-coupled protection schemes such as RS-485 or CAN bus termination networks.
What is the maximum steady-state power dissipation for BZW04P33BHE3/54?
BZW04P33BHE3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at lead temperature (TL) of 75 °C. At room temperature (TA = 25 °C), derating follows the published curve - e.g., ~1.0 W at TA = 100 °C - ensuring safe continuous operation in thermally constrained enclosures without active cooling.
Does BZW04P33BHE3/54 meet RoHS and REACH requirements?
Yes, BZW04P33BHE3/54 carries the HE3 suffix, confirming full compliance with RoHS Directive 2011/65/EU (recast) and adherence to REACH SVHC thresholds. The matte tin-plated leads meet JESD201 Class 2 whisker resistance, and the UL 94 V-0 molded epoxy housing satisfies flammability requirements for end-equipment safety certification.
BZW04P33BHE3/54 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 7.4A
- 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)
BZW04P33BHE3/54 FAQ
1.How can I place an order for BZW04P33BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P33BHE3/54 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 BZW04P33BHE3/54 reliable?
The price and inventory of BZW04P33BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P33BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P33BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P33BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P33BHE3/54?
BZW04P33BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P33BHE3/54 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 BZW04P33BHE3/54?
For technical support, including BZW04P33BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P33BHE3/54 requirements.
6.How does Aetrix verify that BZW04P33BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P33BHE3/54 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 BZW04P33BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P33BHE3/54?
All BZW04P33BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P33BHE3/54, 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 BZW04P33BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04P33BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P33BHE3/54 Tags
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