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Vishay General Semiconductor - Diodes Division BZW04P19HE3/54
- Part No.:
- BZW04P19HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P19HE3/54.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,156
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Product details
Overview
BZW04P19HE3/54 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 19 V standoff voltage (VWM), 400 W peak pulse power rating (10/1000 μs), and clamps transients to ≤30.6 V at 13.0 A, making it suitable for protecting MOSFETs, sensor interfaces, and microcontroller I/O in automotive and industrial control systems.
For engineers reviewing the BZW04P19HE3/54 datasheet, BZW04P19HE3/54 pinout, BZW04P19HE3/54 application, or BZW04P19HE3/54 equivalent, key selection considerations include its AEC-Q101 qualification, DO-41 package compatibility, bi-directional clamping symmetry, and verified performance under 10/1000 μs surge waveforms per ANSI/IEEE C62.35.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical breakdown (20.9–24.2 V), clamping (≤30.6 V), and leakage (<1.0 μA at 18.8 V) characteristics in forward and reverse directions. Its glass-passivated junction ensures stable avalanche behavior and low incremental surge resistance under repetitive 400 W pulses.
The device is rated for continuous power dissipation of 1.5 W on an infinite heatsink and supports operating junction temperatures from –55 °C to +175 °C. It meets JESD22-B102 solderability standards and passes JESD201 Class 2 whisker testing due to its matte tin-plated leads and HE3 suffix qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.8 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 19 V nominal circuits. |
| PPPM | 400 W - Peak pulse power handling capability with 10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| VC @ IPPM | 30.6 V - Clamping voltage at 13.0 A peak pulse current; limits downstream voltage stress during transient events. |
| VBR min/max | 20.9 V / 24.2 V - Breakdown voltage range at 1 mA test current; ensures reliable, repeatable avalanche initiation. |
| ID @ VWM | <1.0 μA - Reverse leakage at 18.8 V; minimizes standby power loss and avoids false triggering in high-impedance nodes. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: DO-204AL (DO-41), axial lead, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal in forward bias | Bi-directional symmetry means either lead serves as anode or cathode depending on polarity of transient; no polarity marking required. |
| Cathode (unmarked end) | Current exit terminal in forward bias | Identical electrical behavior in both directions eliminates need for orientation during PCB placement; simplifies layout and assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, low-noise avalanche conduction and long-term reliability under repeated surge stress. |
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against lightning-induced surges and inductive switching spikes in 12 V/24 V systems. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Bi-directional symmetry | Eliminates polarity concerns in AC-coupled or floating signal paths such as CAN bus stubs or RS-485 lines. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and EU RoHS Directive 2011/65/EU for lead-free manufacturing. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across sensor supply and ground pins to shunt transients before they reach ADC inputs. Use Value: Limits voltage excursion to ≤30.6 V during 13 A surges, preserving signal integrity and preventing ADC saturation or latch-up in microcontrollers. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff protector mounted at field-wire entry point to absorb 10/1000 μs surges before reaching optocoupler or Schmitt trigger inputs. Use Value: Withstands 400 W pulses without degradation, enabling >100,000 surge cycles while maintaining <1 μA leakage at 18.8 V operating voltage. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters and wall chargers subjected to ESD and conducted noise. IC Role / Device Role / Timing Role: Fast-response clamp between VBUS and GND to limit transient overshoot during hot-plug events and cable discharge. Use Value: Sub-1 ns response time and ≤30.6 V clamping ensure compliance with IEC 61000-4-2 Level 4 (±15 kV air) and prevent damage to USB-PD controllers. |
Use Scenario: Primary protection for Ethernet PHY interfaces and POTS line drivers in network edge equipment. IC Role / Device Role / Timing Role: First-stage TVS on RJ-45 jack side, paired with GDT or MOV, to divert common-mode surges induced by nearby lightning strikes. Use Value: Bi-directional operation handles differential and common-mode transients equally; DO-41 package allows through-hole mounting for high creepage/clearance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ19CA | Same VWM (19 V) and PPPM (400 W), but SMC (DO-214AB) surface-mount package; lower thermal resistance than DO-41. | Preferred for automated SMT assembly and higher-density PCB layouts; not drop-in compatible with through-hole footprints. | Select SMBJ19CA when board space is constrained and reflow soldering is used; verify pad thermal relief for 1.5 W steady-state dissipation. |
| P6KE19CA | Legacy 600 W rated part (10/1000 μs); larger DO-15 package; higher clamping voltage (32.4 V) and wider VBR tolerance (19.0–22.1 V). | Used in legacy industrial designs where higher surge margin is prioritized over tight clamping; less precise voltage control than BZW04P19HE3/54. | Choose P6KE19CA only if existing design requires backward compatibility or higher single-pulse energy handling; avoid where low VC is critical. |
Compared with SMBJ19CA and P6KE19CA, BZW04P19HE3/54 offers tighter VBR tolerance (20.9–24.2 V vs. ±5 %), lower clamping voltage (30.6 V vs. 32.4 V), and AEC-Q101 qualification-making it optimal for new automotive and high-reliability industrial designs requiring precise, validated surge response.
Availability
BZW04P19HE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card protection requiring stable component supply, AEC-Q101 traceability, and DO-41 through-hole compatibility.
Supply support for BZW04P19HE3/54 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The BZW04P series belongs to Vishay's TransZorb® family of high-power TVS diodes engineered for demanding transient suppression in automotive, industrial, and communications infrastructure-designed to replace older P6KE and SA series with tighter tolerances and AEC-Q101 validation.
FAQ
What is the maximum clamping voltage of BZW04P19HE3/54 under surge conditions?
The BZW04P19HE3/54 clamps to a maximum of 30.6 V at its rated peak pulse current of 13.0 A (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees predictable voltage limiting during transient events, ensuring downstream ICs remain within safe operating voltage margins.
Is BZW04P19HE3/54 suitable for automotive applications?
Yes, BZW04P19HE3/54 carries the HE3 suffix, confirming AEC-Q101 qualification for automotive use. It has passed stress tests including temperature cycling, high-temperature reverse bias, and ESD, and is specified for operation from –55 °C to +175 °C-making it appropriate for engine control, body electronics, and ADAS sensor protection.
How does the bi-directional functionality of BZW04P19HE3/54 affect circuit layout?
The bi-directional nature of BZW04P19HE3/54 means it functions identically regardless of polarity, so no orientation marking exists and either lead may connect to any node. This eliminates polarity verification during assembly and simplifies placement on AC-coupled or floating lines such as CAN, RS-485, or transformer-isolated power rails.
What is the standoff voltage (VWM) and why is it critical for BZW04P19HE3/54 selection?
The standoff voltage (VWM) of BZW04P19HE3/54 is 18.8 V-the maximum continuous DC or RMS voltage the device blocks without entering avalanche. Selecting a VWM ≥120 % of the system's normal operating voltage prevents nuisance conduction while ensuring sufficient margin for ripple and tolerance drift in 19 V nominal circuits.
Does BZW04P19HE3/54 require a heatsink for 1.5 W continuous power dissipation?
No, the 1.5 W power dissipation rating for BZW04P19HE3/54 assumes an infinite heatsink condition (TL = 75 °C). In typical through-hole PCB mounting without added copper area, derating applies per Figure 5 in the datasheet; sustained 1.5 W operation requires careful thermal design, but transient suppression duty cycle (0.01 %) keeps average power well below this limit.
BZW04P19HE3/54 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 13A
- 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)
BZW04P19HE3/54 FAQ
1.How can I place an order for BZW04P19HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P19HE3/54 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 BZW04P19HE3/54 reliable?
The price and inventory of BZW04P19HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P19HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P19HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P19HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P19HE3/54?
BZW04P19HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P19HE3/54 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 BZW04P19HE3/54?
For technical support, including BZW04P19HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P19HE3/54 requirements.
6.How does Aetrix verify that BZW04P19HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P19HE3/54 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 BZW04P19HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P19HE3/54?
All BZW04P19HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P19HE3/54, 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 BZW04P19HE3/54 part is unused and in its original packaging.
Return procedure for BZW04P19HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P19HE3/54 Tags
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