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Vishay General Semiconductor - Diodes Division BZW04P19-E3/54
- Part No.:
- BZW04P19-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P19-E3/54.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,026
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Product details
Overview
BZW04P19-E3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, designed for clamping ESD and surge transients on signal/power lines. It features 400 W peak pulse power (10/1000 µs), 18.8 V stand-off voltage (VWM), 30.6 V maximum clamping voltage (VC) at 13.0 A peak pulse current, and operates from −55 °C to +175 °C. It is widely used in automotive sensor interface protection per AEC-Q101 qualification.
For engineers reviewing the BZW04P19-E3/54 datasheet, BZW04P19-E3/54 pinout, BZW04P19-E3/54 application, or BZW04P19-E3/54 equivalent, key selection criteria include bi-directional clamping capability, low clamping ratio (VC/VWM = 1.63), AEC-Q101 qualification, RoHS-compliant matte tin plating, and compatibility with 10/1000 µs surge waveforms in automotive and industrial I/O protection.
Technical Context
This bi-directional TVS diode uses a glass passivated silicon junction to achieve fast response time (<1 ns), low incremental surge resistance, and stable breakdown behavior under repetitive transients. Its symmetrical I-V characteristic enables identical clamping in both polarities, eliminating polarity concerns in AC-coupled or floating signal paths.
The device complies with ANSI/IEEE C62.35 surge standards and is rated for 400 W peak pulse power with 0.01% duty cycle. Thermal derating follows a defined curve up to TJ = 175 °C, and its 1.5 W steady-state power dissipation supports continuous biasing in low-leakage monitoring circuits.
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 15–18 V nominal systems. |
| VBR (min/max) | 20.9 V / 24.2 V at 1 mA - Verified breakdown range ensures reliable turn-on across process variation and temperature. |
| VC @ IPPM | 30.6 V at 13.0 A (10/1000 µs) - Clamping voltage limits downstream IC stress during 400 W surge events. |
| IPPM | 13.0 A - Peak surge current handling capacity compatible with ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3. |
| Leakage (ID) | <1.0 µA at 18.8 V - Negligible standby current for battery-powered or high-impedance sensor interfaces. |
| TJ Range | −55 °C to +175 °C - Supports under-hood automotive, industrial motor control, and harsh-environment applications. |
| Package | DO-204AL (DO-41) - Industry-standard axial leaded package with UL 94 V-0 molded epoxy and JESD22-B102 solderability. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, cylindrical glass-passivated body with matte tin-plated leads. No polarity marking - symmetric bi-directional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (either end) | Bi-directional surge path terminal | Identical electrical behavior in both directions; no cathode band; interchangeable lead orientation in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded sensor outputs without polarity constraints. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for engine control, ADAS, and body electronics. |
| 400 W peak pulse power | Withstands repeated 10/1000 µs surges up to 13 A, meeting ISO 7637-2 and IEC 61000-4-5 immunity requirements for Class III/IV systems. |
| Glass passivated junction | Ensures stable leakage performance and long-term reliability under humidity and thermal stress vs. epoxy-only passivation. |
| RoHS & whisker-tested (JESD201 Class 1A) | E3 suffix confirms compliance with EU RoHS Directive 2011/65/EU and resistance to tin whisker growth in high-reliability assemblies. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus Protection |
|---|---|
Use Scenario: Protecting analog output pins of pressure/temperature sensors in engine control modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground, responding within <1 ns to transients exceeding 18.8 V. Use Value: Limits voltage seen by downstream op-amps or ADC inputs to ≤30.6 V during 13 A surges, preventing latch-up or permanent damage. |
Use Scenario: Safeguarding RS-485 transceiver I/O pins in factory automation PLCs subjected to cable discharge and ground potential differences. IC Role / Device Role / Timing Role: Differential-line TVS pair (one per A/B line) referenced to common ground, clamping both positive and negative transients equally. Use Value: Maintains signal integrity by suppressing ±30.6 V clamped transients while adding only ~10 pF junction capacitance at VWM, minimizing data rate degradation. |
| Consumer Appliance Motor Control | Telecom Power Input Stage |
Use Scenario: Shielding microcontroller GPIOs driving relay coils or BLDC gate drivers in washing machines and HVAC systems. IC Role / Device Role / Timing Role: Snubber-style TVS across inductive loads or in series with control lines to absorb flyback energy. Use Value: Absorbs 400 W peak energy from coil de-energization without requiring external series resistance or timing components. |
Use Scenario: Primary-level surge suppression on 24 V DC input rails of VoIP gateways and base station power supplies. IC Role / Device Role / Timing Role: First-stage clamping device upstream of DC-DC converters, shunting surge current before it reaches filtering capacitors. Use Value: Withstands 13 A surges at 30.6 V clamping while maintaining 1.5 W continuous dissipation capability for sustained overvoltage conditions. |
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), higher VC (32.4 V), SMC package (surface-mount), 600 W rating | Requires PCB rework for SMD layout; better suited for high-density boards where axial DO-41 is impractical | Select SMBJ19CA when board space is constrained and automated assembly is preferred over through-hole mounting. |
| P6KE19CA | Same VWM (19 V), lower PPPM (600 W), DO-15 package (larger than DO-41), higher VC (32.4 V) | Higher thermal mass but larger footprint; less suitable for compact automotive modules | Choose P6KE19CA only if legacy DO-15 footprint compatibility or higher single-pulse energy margin is required. |
Compared with SMBJ19CA and P6KE19CA, BZW04P19-E3/54 offers the smallest axial package (DO-41), AEC-Q101 qualification out-of-box, and lowest clamping ratio (1.63) among these three - making it optimal for new automotive and space-constrained industrial designs requiring proven reliability and minimal voltage overshoot.
Availability
BZW04P19-E3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interface hardening, and telecom DC input surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BZW04P19-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 BZW04P series is part of Vishay's TransZorb® TVS platform, engineered specifically for robust, bi-directional transient suppression in automotive, industrial, and communications infrastructure where AEC-Q101 compliance and precise clamping performance are mandatory.
FAQ
What is the clamping voltage of BZW04P19-E3/54 under a standard 10/1000 µs surge?
The BZW04P19-E3/54 clamps to a maximum of 30.6 V when subjected to its rated 13.0 A peak pulse current (IPPM) using the industry-standard 10/1000 µs waveform. This value is guaranteed across temperature and process variation per Vishay Document 88316, ensuring predictable protection margins for downstream circuitry.
Is BZW04P19-E3/54 suitable for automotive applications?
Yes, BZW04P19-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its −55 °C to +175 °C operating range, glass passivated junction, and validation against temperature cycling, HTRB, and surge endurance make it appropriate for engine control units, ADAS sensors, and body electronics where reliability under harsh conditions is critical.
Does BZW04P19-E3/54 have polarity markings?
No, BZW04P19-E3/54 is a bi-directional TVS diode and carries no polarity marking. The DO-204AL package has identical electrical behavior at both leads, allowing either end to connect to the protected line or ground - simplifying layout and eliminating risk of incorrect orientation during assembly.
What is the maximum steady-state power dissipation of BZW04P19-E3/54?
The BZW04P19-E3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C. Derating applies above 25 °C ambient, per Figure 5 in Vishay Document 88316, supporting continuous operation in thermally managed environments.
How does the E3/54 suffix affect BZW04P19-E3/54 packaging and compliance?
The "E3" suffix indicates RoHS-compliant matte tin plating and JESD201 Class 1A whisker resistance; "54" denotes the preferred package code for 13-inch paper tape and reel with 550 units per reel. This configuration ensures compatibility with automated pick-and-place equipment and meets automotive supply chain traceability requirements.
BZW04P19-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P19-E3/54 FAQ
1.How can I place an order for BZW04P19-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P19-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 BZW04P19-E3/54 reliable?
The price and inventory of BZW04P19-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 BZW04P19-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P19-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P19-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P19-E3/54?
BZW04P19-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P19-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 BZW04P19-E3/54?
For technical support, including BZW04P19-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P19-E3/54 requirements.
6.How does Aetrix verify that BZW04P19-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P19-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 BZW04P19-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P19-E3/54?
All BZW04P19-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P19-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 BZW04P19-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P19-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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