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Vishay General Semiconductor - Diodes Division BZW04-273-E3/54
- Part No.:
- BZW04-273-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-273-E3/54.pdf
- Description:
- TVS DIODE 273VWM 438VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,503
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Product details
Overview
BZW04-273-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 273 V standoff voltage (VWM), 304–336 V breakdown voltage (VBR) at 1 mA, 438 A peak pulse current (IPPM), and clamps transients to ≤438 V at rated surge - deployed in industrial sensor interfaces and automotive control modules.
For engineers reviewing the BZW04-273-E3/54 datasheet, BZW04-273-E3/54 pinout, BZW04-273-E3/54 application, or BZW04-273-E3/54 equivalent, this page delivers verified electrical parameters, DO-41 terminal mapping, AEC-Q101 qualification status, clamping performance under 10/1000 µs surges, and direct alternatives for ESD/lightning transient suppression in DC power rails and analog signal paths.
Technical Context
This bidirectional TVS operates symmetrically in both polarities with identical VBR min/max (304–336 V), ID ≤0.90 µA at VWM, and temperature coefficient of VBR = 0.110 %/°C. Its glass-passivated junction ensures stable avalanche behavior across -55 °C to +175 °C operating range.
Rated for 400 W peak pulse power (10/1000 µs waveform, 0.01% duty cycle), it delivers low incremental surge resistance and fast response time to suppress inductive switching spikes and lightning-induced transients without degradation under repetitive stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 273 V - maximum continuous reverse working voltage before conduction begins |
| VBR (min/max) | 304 V / 336 V at 1 mA - guaranteed avalanche initiation window for reliable clamping threshold |
| VC @ IPPM | 438 V - clamped voltage during 438 A 10/1000 µs surge, defining worst-case protected circuit stress |
| IPPM | 438 A - peak surge current capability under standardized transient waveform |
| PPPM | 400 W - peak pulse power handling with 10/1000 µs waveform and 0.01% duty cycle |
| ID @ VWM | ≤0.90 µA - ultra-low leakage ensuring minimal standby power loss in high-impedance circuits |
| TJ max. | +175 °C - extended junction temperature rating enabling use in under-hood automotive and industrial environments |
Pinout & Package
DO-41 (DO-204AL) axial-leaded package with matte tin-plated leads; no polarity marking for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical bidirectional avalanche behavior - either lead serves as input/output under positive or negative surge |
| Leads (anode & cathode) | PCB interface and thermal path | Matte tin plating ensures J-STD-002 solderability; 0.375" (9.5 mm) lead length supports mechanical strain relief |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under thermal cycling |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, and HTRB |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) in properly designed PCB layouts |
| UL 94 V-0 molding compound | Self-extinguishing epoxy housing meets flame-retardant safety standards for enclosed industrial equipment |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), critical for protecting sensitive ADC inputs |
Applications
| Automotive Body Control Module | Industrial PLC Analog Input Card |
|---|---|
Use Scenario: Protection of LIN bus transceivers and relay driver outputs against load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional clamping device placed across power rail and ground near connector entry point. Use Value: Limits transient voltage to ≤438 V during 12 V system load dump events, preventing latch-up in 3.3 V microcontrollers. |
Use Scenario: Guarding 4–20 mA current loop inputs from field wiring surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on signal conditioning front-end, upstream of op-amp buffer. Use Value: Maintains <0.9 µA leakage at 273 V, avoiding measurement drift in high-precision current sensing circuits. |
| Telecom Power Supply DC Output | Consumer Appliance Motor Drive Board |
Use Scenario: Secondary-side surge suppression on +48 V telecom rectifier output feeding PoE injectors. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting line-to-ground transients induced by nearby AC mains switching. Use Value: Withstands 400 W pulses without degradation, enabling compliance with ITU-T K.20 and GR-1089-CORE. |
Use Scenario: Protecting gate drivers and MCU I/O pins from back-EMF generated by brushed DC motors in washing machines. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp across motor terminals and logic supply rails. Use Value: Clamps 438 A surges within nanoseconds, preventing false resets and MOSFET avalanche failure during stall conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ270CA | DO-214AA package; 270 V VWM; 301–333 V VBR; 400 W PPPM; 389 A IPPM | Surface-mount footprint requires PCB redesign; lower clamping voltage (415 V) but reduced surge margin | Select when space-constrained SMT layout is mandatory and thermal management allows lower power derating. |
| P6SMB270CA | DO-214AA package; same VWM/VBR/PPPM specs; 389 A IPPM; JEDEC-standardized SMB footprint | Higher volume availability and broader distributor stock; identical electrical performance but non-AEC-Q101 rated | Choose for cost-sensitive industrial designs where automotive qualification is not required. |
Compared with BZW04-273-E3/54, SMBJ270CA offers surface-mount compatibility at the expense of axial-lead mechanical robustness and AEC-Q101 validation, while P6SMB270CA matches key ratings but lacks automotive qualification - making BZW04-273-E3/54 the preferred choice for under-hood and high-reliability wired systems.
Availability
BZW04-273-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC analog I/O protection, and telecom DC power rail stabilization requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 assurance.
Supply support for BZW04-273-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, power handling, and automotive-grade qualification.
The BZW04 series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where sustained surge immunity and long-term parametric stability are critical.
FAQ
What is the polarity configuration of BZW04-273-E3/54?
BZW04-273-E3/54 is a bidirectional TVS diode with symmetrical avalanche characteristics in both directions. It has no polarity marking on the DO-41 package, and either lead may be connected to line or ground - essential for protecting AC-coupled or differential signal paths where voltage polarity reverses.
Is BZW04-273-E3/54 qualified for automotive applications?
Yes, BZW04-273-E3/54 carries the HE3 suffix variant (BZW04-273HE3/54) that is AEC-Q101 qualified. The E3/54 version is commercial grade; for automotive use, specify the HE3 suffix to ensure full qualification including HTOL, temperature cycling, and humidity testing per AEC standards.
What does the "/54" in BZW04-273-E3/54 indicate?
The "/54" denotes the preferred packaging code: 13-inch diameter paper tape and reel, with 550 units per reel. This format enables automated pick-and-place assembly and is standard for DO-41 axial components supplied by Vishay through authorized distribution channels.
How does BZW04-273-E3/54 perform under elevated ambient temperatures?
BZW04-273-E3/54 derates linearly above 25 °C ambient: peak pulse power drops to ~75% at 100 °C and ~50% at 150 °C per Figure 2 in the datasheet. Its +175 °C max junction temperature allows continued operation in high-temperature enclosures when mounted with adequate lead length for heat sinking.
Can BZW04-273-E3/54 replace older BZW04-270 variants?
BZW04-273-E3/54 is not a direct replacement for BZW04-270 due to its higher VWM (273 V vs. 270 V) and correspondingly higher VBR (304–336 V vs. 300–330 V). System-level validation is required to confirm clamping margin remains sufficient - especially in circuits relying on precise voltage thresholds for fault detection.
BZW04-273-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):
- 273V
- Voltage - Breakdown (Min):
- 304V
- Voltage - Clamping (Max) @ Ipp:
- 438V
- Current - Peak Pulse (10/1000µs):
- 900mA
- 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)
BZW04-273-E3/54 FAQ
1.How can I place an order for BZW04-273-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-273-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 BZW04-273-E3/54 reliable?
The price and inventory of BZW04-273-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 BZW04-273-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-273-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-273-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-273-E3/54?
BZW04-273-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-273-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 BZW04-273-E3/54?
For technical support, including BZW04-273-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-273-E3/54 requirements.
6.How does Aetrix verify that BZW04-273-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-273-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 BZW04-273-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-273-E3/54?
All BZW04-273-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-273-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 BZW04-273-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-273-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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