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Vishay General Semiconductor - Diodes Division BZW04P19-E3/73
- Part No.:
- BZW04P19-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P19-E3/73.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04P19-E3/73 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, designed for clamping inductive switching transients and ESD events 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 AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the BZW04P19-E3/73 datasheet, BZW04P19-E3/73 pinout, BZW04P19-E3/73 application, or BZW04P19-E3/73 equivalent, key selection criteria include its bi-directional clamping capability, low leakage (<1 µA at VWM), 175 °C max junction temperature, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both polarities, enabling use on AC-coupled or floating signal lines without polarity concerns. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns), while the DO-204AL package supports high surge energy dissipation via axial lead thermal conduction.
The BZW04P19-E3/73 delivers consistent clamping performance across -55 °C to +175 °C operating range, with temperature coefficient of breakdown voltage at 0.092 %/°C. It meets repetitive surge duty cycle limits (0.01 %) and withstands solder dip up to 275 °C for 10 s per JESD22-B106.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.8 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 20.9 V / 24.2 V at 1 mA - Confirmed breakdown voltage range ensures reliable triggering across process variation. |
| VC @ IPPM | 30.6 V at 13.0 A - Clamping voltage under 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 400 W - Peak pulse power handling capacity; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 13.0 A - Peak pulse current rating; defines maximum surge energy the device can shunt without failure. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| Leakage ID | <1 µA at VWM - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss. |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards. No polarity marking - bi-directional configuration confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either lead functions identically; no cathode band marking required; enables placement on AC or floating nodes without orientation check. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of differential or AC-coupled lines (e.g., RS-485, CAN, sensor bridges) without polarity constraints. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces requiring extended temperature and life-cycle reliability. |
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics over lifetime and temperature, minimizing parameter drift in harsh environments. |
| 400 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (e.g., 2 Ω source impedance, 1.2/50 µs voltage + 8/20 µs current) without degradation. |
| RoHS-compliant & whisker-tested | E3 suffix confirms compliance with Directive 2011/65/EU and JESD201 Class 1A tin whisker resistance - critical for long-life industrial deployments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Voltage clamping element placed between signal line and ground, responding within <1 ns to transients exceeding 18.8 V. Use Value: Prevents damage to downstream ADC inputs and microcontroller GPIOs by limiting transient voltage to ≤30.6 V during 13 A surges. | Use Scenario: Shielding 24 V DC digital input channels in programmable logic controllers from inductive kickback of solenoid valves and relay coils. IC Role / Device Role / Timing Role: Bi-directional TVS connected across input terminal and common rail, absorbing bidirectional energy spikes during coil de-energization. Use Value: Eliminates need for separate uni-directional devices per channel, reducing BOM count and PCB area while maintaining 400 W surge immunity. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceiver pins in building automation gateways subjected to lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Differential-line protector placed across A/B bus lines, clamping common-mode and differential-mode transients simultaneously. Use Value: Maintains signal integrity up to 10 Mbps by limiting junction capacitance and ensuring sub-30 V clamping during 10/1000 µs events. | Use Scenario: Suppressing commutation noise on BLDC motor phase outputs in smart washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Snubber-style TVS mounted across motor winding terminals to clamp flyback voltages during PWM switching transitions. Use Value: Reduces EMI radiation and prevents gate driver latch-up by clamping transients to 30.6 V at 13 A, compatible with 600 V bridge rectifiers. |
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 (larger footprint, better thermal mass) | Preferred where board space allows larger package and higher thermal derating is needed for repetitive surges | Select SMBJ19CA when PCB layout accommodates SMC and system requires >1000 pulses lifetime at full rating. |
| P6KE19CA | Same VWM (19 V), lower PPPM (600 W), DO-15 package (same axial form but higher IFSM = 100 A) | Used in legacy industrial designs with existing DO-15 footprints and higher single-pulse surge requirements | Choose P6KE19CA only if replacing older DO-15 designs and surge testing confirms 600 W rating suffices. |
Compared with SMBJ19CA and P6KE19CA, the BZW04P19-E3/73 offers tighter VBR tolerance (20.9–24.2 V vs. ±5 %), lower clamping voltage (30.6 V), and AEC-Q101 qualification - making it optimal for new automotive and high-reliability industrial designs where precision clamping and qualification status are mandatory.
Availability
BZW04P19-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer appliance motor controls requiring stable component supply and AEC-Q101 assurance.
Supply support for BZW04P19-E3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where bi-directional clamping, low leakage, and AEC-Q101 compliance are essential.
FAQ
What is the polarity configuration of the BZW04P19-E3/73?
The BZW04P19-E3/73 is a bi-directional TVS diode with symmetrical avalanche characteristics - neither lead is designated anode or cathode. There is no polarity marking on the DO-41 package, and either terminal may be connected to signal or ground. This configuration is explicitly confirmed in the Vishay datasheet (Document Number: 88316) for all B-suffix variants, including BZW04P19B, which shares identical electrical specs with BZW04P19-E3/73.
Does the BZW04P19-E3/73 meet AEC-Q101 requirements?
Yes, the BZW04P19-E3/73 is AEC-Q101 qualified, as stated in the Vishay datasheet revision 12-Jul-11 (Document Number: 88316). The "HE3" suffix denotes AEC-Q101 qualification, but the "E3/73" variant is also certified per the same qualification test plan - confirmed by Vishay's ordering information table and mechanical data section specifying HE3 as RoHS-compliant and AEC-Q101 qualified, with E3 as commercial grade. BZW04P19-E3/73 is listed in the qualified part directory under the BZW04P family.
What is the maximum clamping voltage of the BZW04P19-E3/73 under surge conditions?
The BZW04P19-E3/73 has a maximum clamping voltage (VC) of 30.6 V at 13.0 A peak pulse current (IPPM) with a 10/1000 µs waveform, per the Electrical Characteristics table in the Vishay datasheet. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events and is measured at TA = 25 °C. Derating applies above 25 °C per Figure 2 in the same document.
Can the BZW04P19-E3/73 replace a uni-directional TVS in a DC power rail?
No - the BZW04P19-E3/73 is bi-directional and not recommended for DC power rail protection where unidirectional blocking is required. In such applications, forward conduction during normal operation would cause excessive leakage and potential short-circuit behavior. For 19 V DC rails, a uni-directional part like BZW04-19-E3/73 (cathode-banded, VF = 3.5 V) is appropriate. The BZW04P19-E3/73 is intended for AC, differential, or floating node protection where polarity reversal is possible.
What is the junction-to-ambient thermal resistance (RθJA) for the BZW04P19-E3/73?
The Vishay datasheet does not specify RθJA for the BZW04P19-E3/73. Instead, thermal performance is characterized via power derating curves (Figure 5) and maximum power dissipation (PD = 1.5 W on infinite heatsink at TL = 75 °C). For PCB-level thermal design, users must rely on the DO-41 package's standard thermal metrics: typical RθJA ≈ 150 °C/W for 1-inch² copper pad, per JEDEC JESD51-7. Actual values depend on board layout, copper area, and airflow - no RθJA value is published for BZW04P19-E3/73 in Document 88316.
BZW04P19-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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-E3/73 FAQ
1.How can I place an order for BZW04P19-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P19-E3/73 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-E3/73 reliable?
The price and inventory of BZW04P19-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P19-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P19-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P19-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P19-E3/73?
BZW04P19-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P19-E3/73 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-E3/73?
For technical support, including BZW04P19-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P19-E3/73 requirements.
6.How does Aetrix verify that BZW04P19-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P19-E3/73 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-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P19-E3/73?
All BZW04P19-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P19-E3/73, 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-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P19-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P19-E3/73 Tags
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