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Vishay General Semiconductor - Diodes Division BZW04-188-E3/54
- Part No.:
- BZW04-188-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-188-E3/54.pdf
- Description:
- TVS DIODE 188VWM 301VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,918
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Product details
Overview
BZW04-188-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of signal and power lines. It features a 188 V standoff voltage (VWM), 209–231 V breakdown range (VBR at 1 mA), 301 V clamping voltage (VC) at 1.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the BZW04-188-E3/54 datasheet, BZW04-188-E3/54 pinout, BZW04-188-E3/54 application, or BZW04-188-E3/54 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified transient suppressor for bidirectional DC line protection where low leakage (<1 μA), stable temperature coefficient (0.108 %/°C), and high surge immunity are required.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive transients.
The device complies with ANSI/IEEE C62.35 surge standards and delivers consistent clamping performance across -55 °C to +175 °C operating junction temperature, with thermal derating defined per Figure 2 and power dissipation limited to 1.5 W on infinite heatsink at 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - maximum continuous reverse working voltage before conduction begins |
| VBR (min/max) | 209 V / 231 V at 1 mA - precise breakdown threshold defining turn-on sensitivity |
| VC @ IPPM | 301 V at 1.4 A - clamping voltage limiting downstream circuit stress during 10/1000 μs surge |
| PPPM | 400 W - peak pulse power handling capability per single transient event |
| ID @ VWM | <1 μA - ultra-low reverse leakage preserving signal integrity in high-impedance circuits |
| TJ max. | +175 °C - extended junction temperature rating supporting under-hood automotive use |
| Temp. coeff. of VBR | 0.108 %/°C - predictable voltage drift over temperature for stable protection margins |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional operation - both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical bidirectional avalanche structure - either lead may connect to protected line or ground |
| Lead 1 | Terminal A | Matte tin-plated, solderable per J-STD-002; supports 275 °C dip for 10 s (JESD22-B106) |
| Lead 2 | Terminal B | Same metallization and mechanical specs as Lead 1; no functional distinction in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| AEC-Q101 qualification | Validated for automotive-grade deployment including temperature cycling, HTRB, and ESD testing |
| 400 W 10/1000 μs pulse rating | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events without degradation |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets flame-retardancy requirements for enclosed systems |
| JESD201 class 1A whisker resistance | E3 suffix confirms mitigation of tin whisker growth in commercial-grade assembly environments |
Applications
| Automotive Sensor Interface | 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 transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground, responding within <1 ns to limit voltage excursion. Use Value: Maintains signal fidelity below 301 V clamp while surviving repeated 400 W surges - critical for ASIL-B functional safety compliance. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers against field wiring faults and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-mode protector shunting transients before they reach precision ADC front-end or op-amp conditioning stages. Use Value: Sub-1 μA leakage at 188 V prevents measurement offset; DO-41 form factor enables through-hole mounting on ruggedized PCBs. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY interface transformers and PoE injectors from ESD and fast-rising EFT bursts in network edge equipment. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector entry point, conducting bidirectionally to protect differential pairs. Use Value: Symmetric VBR (209–231 V) ensures equal clamping on both signal polarities - essential for full-duplex data integrity. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-inductance path across motor terminals or between driver output and ground, diverting inductive kickback energy. Use Value: 175 °C max junction temperature allows placement near heat-generating motor drivers without derating loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ188CA | DO-214AA package; 188 V VWM, 301 V VC @ 1.4 A, same PPPM but lower IFSM (100 A vs. 40 A unidirectional only) | Surface-mount alternative with higher board density; lacks AEC-Q101 qualification in standard grade | Select SMBJ188CA when space-constrained SMT layout is prioritized and automotive qualification is not required. |
| 1.5KE188CA | DO-201AD package; identical VWM/VC specs but 1.5 kW PPPM; larger footprint and higher thermal mass | Higher-energy surge handling for utility-grade equipment; not optimized for automotive vibration or thermal cycling | Choose 1.5KE188CA only for non-automotive applications requiring >400 W single-pulse margin and legacy through-hole compatibility. |
Compared with SMBJ188CA and 1.5KE188CA, BZW04-188-E3/54 offers AEC-Q101 validation, DO-41 mechanical robustness for high-vibration environments, and JESD201 class 1A whisker resistance - making it the preferred choice for automotive and industrial control modules where reliability under stress is non-negotiable.
Availability
BZW04-188-E3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O conditioning, and telecom line card surge suppression requiring stable component supply across production lifecycles.
Supply support for BZW04-188-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The BZW04 series was engineered specifically for bidirectional transient suppression in harsh environments, emphasizing AEC-Q101 compliance, stable temperature coefficients, and repeatable clamping performance across wide operating ranges.
FAQ
What is the polarity configuration of BZW04-188-E3/54?
BZW04-188-E3/54 is a bidirectional TVS diode with symmetrical terminals - no cathode marking is present, and both leads function identically regardless of orientation in the circuit. This enables straightforward implementation on AC-coupled or floating lines without polarity verification during assembly.
Does BZW04-188-E3/54 meet automotive qualification standards?
Yes, BZW04-188-E3/54 carries the HE3 suffix variant for AEC-Q101 qualification; however, the E3/54 variant is RoHS-compliant commercial grade. For automotive use, specify BZW04-188HE3/54 - both share identical electrical specs but differ in qualification scope and whisker test class.
What is the maximum clamping voltage of BZW04-188-E3/54 under surge conditions?
The maximum clamping voltage (VC) of BZW04-188-E3/54 is 301 V when subjected to a 10/1000 μs waveform at 1.4 A peak pulse current (IPPM). This value is guaranteed per the Vishay datasheet and defines the upper voltage limit imposed on protected circuitry during transient events.
Can BZW04-188-E3/54 be used in place of unidirectional TVS diodes?
No - BZW04-188-E3/54 is strictly bidirectional and must not replace unidirectional types (e.g., BZW04P-188) in DC-biased circuits requiring forward conduction blocking. Its symmetrical structure conducts in both directions, making it unsuitable for applications needing rectification or DC rail isolation.
What packaging format does BZW04-188-E3/54 ship in?
BZW04-188-E3/54 ships in 13-inch diameter paper tape and reel format (package code 54), with 550 units per reel. The axial DO-41 leads are matte tin-plated and compliant with J-STD-002 solderability standards for wave and reflow processes.
BZW04-188-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):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 301V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- 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)
BZW04-188-E3/54 FAQ
1.How can I place an order for BZW04-188-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-188-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 BZW04-188-E3/54 reliable?
The price and inventory of BZW04-188-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 BZW04-188-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-188-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-188-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-188-E3/54?
BZW04-188-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-188-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 BZW04-188-E3/54?
For technical support, including BZW04-188-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-188-E3/54 requirements.
6.How does Aetrix verify that BZW04-188-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-188-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 BZW04-188-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-188-E3/54?
All BZW04-188-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-188-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 BZW04-188-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-188-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-188-E3/54 Tags
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