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Vishay General Semiconductor - Diodes Division BZW04P19B-E3/54
- Part No.:
- BZW04P19B-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P19B-E3/54.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,161
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Product details
Overview
BZW04P19B-E3/54 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 (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P19B-E3/54 datasheet, BZW04P19B-E3/54 pinout, BZW04P19B-E3/54 application, or BZW04P19B-E3/54 equivalent, key selection criteria include its bi-directional polarity, DO-204AL (DO-41) package compatibility, AEC-Q101 qualification, low 0.092 %/°C VBR temperature coefficient, and 1.0 μA max reverse leakage at VWM - critical for low-power, high-reliability surge protection designs.
Technical Context
This device operates as a bi-directional avalanche breakdown TVS, delivering symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable performance across -55 °C to +175 °C junction temperature range.
Designed for repetitive transient suppression per IEC 61000-4-5 and ISO 7637-2, it sustains 400 W peak pulse power under 0.01 % duty cycle conditions and meets JESD22-B106 solderability standards (275 °C, 10 s). The 18.8 V VWM ensures reliable blocking during normal operation while triggering clamping before downstream IC damage thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.8 V - maximum continuous reverse operating voltage before clamping initiates; defines safe working margin for protected circuitry |
| VC @ IPPM | 30.6 V at 13.0 A - clamped voltage during 10/1000 μs surge; determines worst-case stress on downstream components |
| PPPM | 400 W - peak transient energy handling capability; supports Level 4 IEC 61000-4-5 compliance with proper PCB layout |
| VBR min/max | 20.9 V / 24.2 V at 1.0 mA - verified avalanche breakdown range; ensures consistent trigger threshold across production lots |
| ID @ VWM | 1.0 μA - ultra-low reverse leakage; preserves signal integrity and battery life in always-on systems |
| TJ max | +175 °C - extended thermal rating enabling under-hood automotive use without derating penalties |
| Temp. coeff. | 0.092 %/°C - minimal VBR drift over temperature; maintains clamping accuracy in wide ambient ranges |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. Bi-directional configuration - no polarity marking required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between leads; either terminal serves as input/output for transient energy diversion |
| Lead 1 | Terminal A | Standard axial lead - connects to protected line (e.g., CAN_H or RS-485 A) |
| Lead 2 | Terminal B | Standard axial lead - connects to reference (e.g., ground or complementary line) |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or differential lines (e.g., RS-485, CAN, USB D+/D−) without polarity concerns |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term reliability and stable electrical parameters under thermal cycling and humidity exposure |
| 400 W peak pulse power | Handles severe transients such as load dump (ISO 7637-2 Pulse 5a) and ESD events up to ±30 kV (air discharge) |
| RoHS-compliant E3 suffix | Meets JESD201 Class 1A whisker resistance; suitable for high-reliability industrial and medical-adjacent equipment |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors exposed to inductive switching noise and battery load dump pulses in 12 V vehicle systems. IC Role / Device Role / Timing Role: Standoff-mode TVS placed across sensor output lines to clamp transients before reaching MCU analog front-end. Use Value: Prevents false triggering and ADC saturation by limiting voltage to ≤30.6 V during 100 A/10 ms surges - maintaining ASIL-B functional safety integrity. | Use Scenario: Safeguarding programmable logic controller (PLC) RS-485 communication ports against EFT bursts and lightning-induced surges in factory automation. IC Role / Device Role / Timing Role: Bi-directional shunt protector on differential bus lines (A/B), referenced to local ground plane. Use Value: Maintains signal fidelity with <1.0 μA leakage at 18.8 V, enabling >1 km cable runs while surviving 400 W transient events per IEC 61000-4-4 Level 4. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding DSL/VDSL line interface ICs from induced surges on outdoor copper pairs in central office and CPE equipment. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector entry point, coordinated with secondary GDT or polymer PTC. Use Value: Clamps 10/1000 μs surges to 30.6 V within <1 ns, preventing latch-up in line drivers and preserving bit-error-rate performance. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Across-motor terminals to absorb inductive kickback energy before it couples into MCU power rails. Use Value: Withstands 40 A non-repetitive forward surge (IFSM) and 175 °C junction rating, enabling direct placement near motor windings without thermal derating. |
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 DO-214AA package; 19 V VWM, 32.4 V VC @ 12.3 A; lower PPPM (600 W vs. 400 W rated but higher peak due to package thermal mass) | Surface-mount only; requires reflow-compatible PCB layout; less suited for through-hole legacy industrial designs | Select SMBJ19CA when board space is constrained and SMT assembly is available. |
| P6KE19CA | DO-15 package; identical 19 V VWM and 30.6 V VC; same 400 W PPPM; slightly higher VF (3.5 V) and 1000 V ESD rating vs. BZW04P19B-E3/54's 30 kV | Legacy through-hole footprint; wider lead spacing (5.0 mm vs. 2.7 mm); compatible with wave-solder processes | Choose P6KE19CA for drop-in replacement in existing DO-15-based designs requiring identical electrical specs. |
Compared with SMBJ19CA and P6KE19CA, BZW04P19B-E3/54 offers AEC-Q101 qualification and tighter VBR tolerance (20.9–24.2 V vs. ±5 %), making it preferred for automotive-grade designs where process consistency and qualification traceability are mandatory.
Availability
BZW04P19B-E3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interface hardening, and telecom line card surge suppression requiring stable component supply, AEC-Q101 compliance, and DO-41 through-hole manufacturability.
Supply support for BZW04P19B-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, automotive qualification, and industrial robustness.
The BZW04P series belongs to Vishay's TransZorb® TVS family engineered specifically for high-energy, bi-directional transient suppression in harsh environments - targeting automotive, industrial control, and infrastructure applications demanding AEC-Q101 validation and extended temperature operation.
FAQ
What is the clamping voltage of BZW04P19B-E3/54 and how is it measured?
The clamping voltage (VC) of BZW04P19B-E3/54 is 30.6 V, measured at 13.0 A peak pulse current (IPPM) using a standardized 10/1000 μs double-exponential waveform per IEC 61000-4-5. This value represents the maximum voltage seen across the device during surge conduction and directly determines stress on downstream components. BZW04P19B-E3/54 maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C).
Is BZW04P19B-E3/54 suitable for automotive applications?
Yes, BZW04P19B-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its +175 °C maximum junction temperature, glass-passivated junction, and validated performance under ISO 7637-2 load dump and pulse test conditions make it appropriate for engine control units, body electronics, and ADAS sensor interfaces. The HE3 variant is AEC-Q101 qualified; the E3/54 version is commercial grade but shares identical electrical specs and mechanical construction.
What does the "B" suffix in BZW04P19B-E3/54 indicate?
The "B" suffix in BZW04P19B-E3/54 denotes bi-directional functionality, meaning the device provides symmetrical transient suppression in both polarities - essential for protecting AC-coupled or differential signal lines like CAN, RS-485, or audio paths. Unlike uni-directional variants (e.g., BZW04P19-E3/54), it has no cathode marking and operates identically regardless of voltage polarity applied across its terminals.
How does BZW04P19B-E3/54 compare to standard Zener diodes in surge protection?
BZW04P19B-E3/54 is engineered specifically for high-energy transient suppression, offering 400 W peak pulse power, sub-nanosecond response, and low dynamic impedance - unlike general-purpose Zener diodes optimized for voltage regulation. Its glass-passivated junction and controlled avalanche characteristics ensure repeatable clamping under surge conditions, whereas Zeners may fail catastrophically or exhibit parameter drift after transient exposure. BZW04P19B-E3/54 is not intended for steady-state regulation.
What is the lead finish and solderability specification for BZW04P19B-E3/54?
BZW04P19B-E3/54 features matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. It supports wave and hand soldering per JESD 22-B106 (275 °C, 10 s maximum). The E3 suffix confirms compliance with JESD201 Class 1A whisker testing, ensuring long-term reliability in high-vibration or thermally cycled applications. Lead spacing is 2.7 mm nominal, matching standard DO-41 footprints.
BZW04P19B-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:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P19B-E3/54 FAQ
1.How can I place an order for BZW04P19B-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P19B-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 BZW04P19B-E3/54 reliable?
The price and inventory of BZW04P19B-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 BZW04P19B-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P19B-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P19B-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P19B-E3/54?
BZW04P19B-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P19B-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 BZW04P19B-E3/54?
For technical support, including BZW04P19B-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P19B-E3/54 requirements.
6.How does Aetrix verify that BZW04P19B-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P19B-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 BZW04P19B-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P19B-E3/54?
All BZW04P19B-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P19B-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 BZW04P19B-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P19B-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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