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Vishay General Semiconductor - Diodes Division BZW04-19-E3/54
- Part No.:
- BZW04-19-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-19-E3/54.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,115
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Product details
Overview
BZW04-19-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 400 W peak pulse power (10/1000 μs), 18.8 V stand-off voltage (VWM), 20.9–23.1 V breakdown voltage (VBR at 1 mA), and clamps to ≤30.6 V at 13.0 A peak pulse current. It is used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the BZW04-19-E3/54 datasheet, BZW04-19-E3/54 pinout, BZW04-19-E3/54 application, or BZW04-19-E3/54 equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under surge conditions, and AEC-Q101 qualification status - all critical for ESD and lightning-induced transient protection design.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping positive and negative transients above its breakdown threshold. Its glass-passivated junction ensures stable VBR temperature coefficient (0.092 %/°C) and low leakage (<1.0 μA at 18.8 V).
It sustains 400 W non-repetitive pulses per 10/1000 μs waveform with <0.01% duty cycle, and derates linearly above 25 °C ambient per Fig. 2. Junction temperature range spans −55 °C to +175 °C, supporting under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.8 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 20.9 V / 23.1 V at 1 mA - defines reliable clamping onset window under production tolerance |
| VC @ IPPM | ≤30.6 V at 13.0 A - peak clamped voltage during 10/1000 μs surge, limiting downstream stress |
| PPPM | 400 W - surge energy handling capacity per standardized waveform, enabling robust EMC compliance |
| ID @ VWM | ≤1.0 μA - ultra-low leakage preserves signal integrity in high-impedance sensor circuits |
| TJ max. | +175 °C - supports placement near heat sources in automotive ECUs and motor drives |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional operation; matte tin-plated leads compliant with J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical bidirectional avalanche behavior - either lead serves as input or return; no orientation dependency |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial ports |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed enclosures during fault conditions |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤30.6 V during 13 A surges, preventing latch-up or gate oxide damage in connected ASICs. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring faults and EFT bursts. IC Role / Device Role / Timing Role: Primary overvoltage clamp at terminal block entry point, coordinated with series impedance and filtering. Use Value: Maintains signal fidelity with <1.0 μA leakage at 18.8 V while surviving repeated 400 W surges per IEC 61000-4-5. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Shielding Ethernet PHY magnetics and DSL line drivers from lightning-induced common-mode surges on outdoor-facing ports. IC Role / Device Role / Timing Role: Secondary-level TVS on secondary-side signal lines, working with primary GDT or MOV stages. Use Value: Fast response (<1 ns) and symmetric clamping ensure balanced differential signal integrity during asymmetric transients. |
Use Scenario: Output rail protection in AC/DC adapters and USB PD chargers against output short-circuit recovery spikes and hot-plug transients. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter between DC-DC post-regulator and connector pins. Use Value: Withstands 8.3 ms half-sine forward surge up to 40 A, protecting downstream USB-C controller ICs during fault recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ19CA | DO-214AA package; 600 W PPPM; slightly higher VC (32.4 V @ 12.3 A); same VWM/VBR range | Higher power rating suits higher-energy surge environments; larger footprint requires PCB rework | Select when >400 W margin is required and board space allows SMB package |
| P6KE19CA | DO-15 package; 600 W PPPM; higher VF (3.5 V); same bidirectional configuration and VWM | Legacy through-hole alternative; lower thermal resistance but incompatible with automated SMT assembly | Choose only for manual repair, legacy redesign, or where DO-15 mechanical retention is mandatory |
Compared with BZW04-19-E3/54, SMBJ19CA offers higher surge margin in a surface-mount package but increases board area, while P6KE19CA retains identical electrical specs in a through-hole form unsuitable for modern SMT lines - making BZW04-19-E3/54 the optimal balance of AEC-Q101 compliance, DO-41 manufacturability, and 400 W protection for cost-sensitive automotive and industrial designs.
Availability
BZW04-19-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, telecom line protection, and consumer power adapter outputs requiring stable component supply and long-term lifecycle support.
Supply support for BZW04-19-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, and protection devices with emphasis on reliability and automotive qualification.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of BZW04-19-E3/54 under a standard 10/1000 μs surge?
The BZW04-19-E3/54 clamps to a maximum of 30.6 V when subjected to its rated peak pulse current of 13.0 A using the 10/1000 μs waveform. This value is measured at the device terminals and represents the upper bound of voltage seen by downstream circuitry during transient events, ensuring compatibility with 3.3 V, 5 V, and 24 V system rails.
Is BZW04-19-E3/54 qualified for automotive applications?
Yes, BZW04-19-E3/54 is AEC-Q101 qualified when ordered with the HE3 suffix (e.g., BZW04-19HE3/54). The BZW04-19-E3/54 variant is RoHS-compliant commercial grade; for automotive use, confirm ordering code includes HE3 and verify qualification status via Vishay's official documentation or authorized distributor records.
Does BZW04-19-E3/54 have polarity markings on the package?
No, BZW04-19-E3/54 is a bidirectional TVS diode and carries no polarity marking. Its DO-41 package has symmetrical leads - either end may be connected to line or return without affecting clamping performance, simplifying layout and assembly for differential or AC-coupled protection schemes.
What is the maximum junction temperature rating for BZW04-19-E3/54?
The BZW04-19-E3/54 has a maximum junction temperature (TJ max.) of +175 °C, enabling operation in high-temperature environments such as engine compartments, motor drive enclosures, and industrial control cabinets. Derating curves in the datasheet (Fig. 2) define allowable power dissipation above 25 °C ambient.
How does the leakage current of BZW04-19-E3/54 impact high-impedance sensor circuits?
BZW04-19-E3/54 exhibits ≤1.0 μA reverse leakage at its 18.8 V stand-off voltage, minimizing loading effects on high-impedance nodes like thermistor dividers or op-amp inputs. This low ID ensures measurement accuracy remains unaffected while still providing robust transient response - a key advantage over higher-leakage alternatives in precision analog systems.
BZW04-19-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:
- Active
- 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)
BZW04-19-E3/54 FAQ
1.How can I place an order for BZW04-19-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-19-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 BZW04-19-E3/54 reliable?
The price and inventory of BZW04-19-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 BZW04-19-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-19-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-19-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-19-E3/54?
BZW04-19-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-19-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 BZW04-19-E3/54?
For technical support, including BZW04-19-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-19-E3/54 requirements.
6.How does Aetrix verify that BZW04-19-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-19-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 BZW04-19-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-19-E3/54?
All BZW04-19-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-19-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 BZW04-19-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-19-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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