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Vishay General Semiconductor - Diodes Division BZW04P19BHE3/54
- Part No.:
- BZW04P19BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P19BHE3/54.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04P19BHE3/54 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 18.8 V stand-off voltage (VWM), 30.6 V clamping voltage (VC) at 13.0 A peak pulse current, and 400 W peak pulse power capability with 10/1000 μs waveform - deployed to safeguard MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD events.
For engineers reviewing the BZW04P19BHE3/54 datasheet, BZW04P19BHE3/54 pinout, BZW04P19BHE3/54 application, or BZW04P19BHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-41 (DO-204AL) package, bi-directional symmetry, low clamping ratio (VC/VWM ≈ 1.63), and 0.092 %/°C temperature coefficient of breakdown voltage - critical for automotive and industrial surge immunity design.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling single-device protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance and fast response (<1 ns), while the 10/1000 μs surge rating reflects standardized lightning and inductive load transient immunity per ANSI/IEEE C62.35.
The device is rated for continuous operation from –55 °C to +175 °C junction temperature, with thermal derating above 25 °C ambient per Figure 2, and supports soldering up to 275 °C for 10 s (JESD22-B106). The HE3 suffix confirms AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.8 V - maximum continuous working voltage before clamping begins; defines safe operating margin for 15–18 V nominal systems. |
| VC @ IPPM | 30.6 V at 13.0 A - clamping voltage under 10/1000 μs surge; limits protected circuit stress during transient events. |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform; meets IEC 61000-4-5 Level 3 surge requirements. |
| VBR min/max | 20.9 V / 24.2 V at 1 mA - breakdown voltage range; ensures reliable triggering across process and temperature variation. |
| TJ max | +175 °C - maximum junction temperature; supports under-hood automotive and high-ambient industrial use. |
| ID @ VWM | 1.0 μA - reverse leakage at stand-off voltage; negligible power loss and minimal impact on high-impedance sensor bias networks. |
| Temp. Coeff. | +0.092 %/°C - positive VBR drift with temperature; enables predictable clamping behavior across wide thermal ranges. |
Pinout & Package
Package: DO-204AL (DO-41), axial lead, molded epoxy case meeting UL 94 V-0. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102. Bi-directional construction means no polarity marking; terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both ends serve as interchangeable surge current entry/exit points; no cathode band - enables bidirectional line protection without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable leakage current (<1 μA) and long-term reliability under humidity and thermal cycling stress. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| 400 W peak pulse power (10/1000 μs) | Withstands repetitive surges typical of ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 combination wave tests. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., >1 kV/μs), improving protection fidelity for sensitive analog front-ends. |
| RoHS-compliant, lead-free | Meets Directive 2011/65/EU; matte tin plating eliminates lead-based solder compatibility issues and whisker risk (JESD201 Class 2). |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in 12 V 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 downstream transceivers and microcontrollers. | Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges (e.g., relay coil de-energization, motor contactor bounce). IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, mounted adjacent to terminal blocks. Use Value: Absorbs 400 W surge energy without degradation, maintaining <1 μA leakage to preserve input threshold accuracy and reduce false triggering. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side transient suppression on 19 V DC output rails of laptop adapters exposed to system-level ESD and cable discharge events. IC Role / Device Role / Timing Role: Final-stage TVS between DC output connector and downstream DC-DC converter input. Use Value: Clamps 10/1000 μs surges to 30.6 V within nanoseconds, protecting synchronous rectifiers and controller ICs rated for ≤36 V absolute maximum. | Use Scenario: Protecting Ethernet PHY or RS-485 transceivers connected to unshielded outdoor cabling subject to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bi-directional shunt protector on data pair lines, used with common-mode chokes and GDTs in multi-stage protection schemes. Use Value: Symmetric clamping ensures equal protection for both polarities of differential signals, preserving signal integrity while limiting common-mode excursion to <31 V. |
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 VC (32.4 V), but SMC (DO-214AB) package - larger footprint, higher thermal mass, lower parasitic inductance. | Better suited for high-repetition-rate surges due to higher thermal dissipation; less space-constrained than DO-41. | Select SMBJ19CA when board layout allows SMC package and higher average power handling is required. |
| P6KE19CA | Same DO-41 package and bi-directionality, but lower PPPM (600 W vs. 400 W) and higher VC (34.4 V); older 600 W series with wider VBR tolerance. | Legacy alternative with looser parametric control; suitable only where clamping voltage margin ≥34.4 V is acceptable. | Prefer BZW04P19BHE3/54 for tighter VBR spread, lower VC, and AEC-Q101 qualification - P6KE19CA lacks automotive qualification. |
Compared with SMBJ19CA and P6KE19CA, BZW04P19BHE3/54 delivers superior parametric consistency (±5.5 % VBR), lower clamping ratio, and automotive-grade reliability in the compact DO-41 form factor - making it optimal for space-limited, high-reliability 12–24 V systems.
Availability
BZW04P19BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and consistent 400 W surge handling.
Supply support for BZW04P19BHE3/54 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® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and communications infrastructure - balancing low clamping voltage, fast response, and rugged packaging.
FAQ
What is the clamping voltage of BZW04P19BHE3/54 and how is it measured?
The clamping voltage of BZW04P19BHE3/54 is 30.6 V, measured at 13.0 A peak pulse current using the standardized 10/1000 μs double-exponential surge waveform per ANSI/IEEE C62.35. This value represents the maximum voltage seen across the device during a transient event and directly determines the stress imposed on downstream components - BZW04P19BHE3/54 maintains this clamping performance across its full operating temperature range.
Is BZW04P19BHE3/54 suitable for automotive applications?
Yes, BZW04P19BHE3/54 is AEC-Q101 qualified (confirmed by the HE3 suffix), tested for temperature cycling, humidity, mechanical shock, and surge endurance per automotive reliability standards. Its –55 °C to +175 °C operating range, low leakage, and stable clamping make it appropriate for engine control units, body control modules, and ADAS sensor interfaces - BZW04P19BHE3/54 is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What does the "B" suffix in BZW04P19BHE3/54 indicate?
The "B" suffix denotes bi-directional functionality: BZW04P19BHE3/54 provides symmetrical transient suppression in both polarities, with identical breakdown, clamping, and leakage characteristics in forward and reverse bias. Unlike uni-directional variants (e.g., BZW04P19HE3/54), it has no cathode marking and is ideal for AC signal lines, differential buses, or polarity-agnostic DC protection - BZW04P19BHE3/54 requires no orientation during placement.
How does the thermal performance of BZW04P19BHE3/54 compare to similar DO-41 TVS diodes?
BZW04P19BHE3/54 has a maximum junction temperature of +175 °C and derates linearly above 25 °C ambient per Vishay's Figure 2 - matching industry-leading thermal capability for DO-41 packages. Its glass-passivated chip and optimized epoxy molding yield lower thermal resistance than legacy P6KE-series devices; BZW04P19BHE3/54 sustains 1.5 W power dissipation at TL = 75 °C, verified per Figure 5, supporting high-temperature industrial deployments.
Can BZW04P19BHE3/54 replace P6KE19CA in an existing design?
BZW04P19BHE3/54 is a functional upgrade to P6KE19CA - same DO-41 package, pin-compatible, and bi-directional - but offers tighter VBR tolerance (±5.5 % vs. ±10 %), lower clamping voltage (30.6 V vs. 34.4 V), and AEC-Q101 qualification. No PCB changes are required; however, verify that the reduced VC does not cause unintended crowbar behavior in current-limited circuits - BZW04P19BHE3/54 improves protection margin while maintaining drop-in mechanical fit.
BZW04P19BHE3/54 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):
- 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)
BZW04P19BHE3/54 FAQ
1.How can I place an order for BZW04P19BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P19BHE3/54 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 BZW04P19BHE3/54 reliable?
The price and inventory of BZW04P19BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P19BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P19BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P19BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P19BHE3/54?
BZW04P19BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P19BHE3/54 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 BZW04P19BHE3/54?
For technical support, including BZW04P19BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P19BHE3/54 requirements.
6.How does Aetrix verify that BZW04P19BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P19BHE3/54 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 BZW04P19BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P19BHE3/54?
All BZW04P19BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P19BHE3/54, 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 BZW04P19BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04P19BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P19BHE3/54 Tags
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