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Taiwan Semiconductor Corporation BZW04-58B
- Part No.:
- BZW04-58B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-58B.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,498
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Product details
Overview
BZW04-58B from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 58.1 V working stand-off voltage, 64.6–71.4 V breakdown voltage at 1 mA, 4.3 A peak pulse current, 92.0 V maximum clamping voltage at IPP, and 400 W peak pulse power rating per 10/1000 µs waveform - deployed in automotive lighting control modules and industrial sensor interfaces.
For engineers reviewing the BZW04-58B datasheet, BZW04-58B pinout, BZW04-58B application, or BZW04-58B equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, junction temperature derating above 25°C, DO-41 lead-form compatibility with wave-soldered PCB layouts, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
The BZW04-58B operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its specified VBR range. Its low dynamic impedance ensures rapid clamping response (<1 ns), while thermal resistance of 60 °C/W (junction-to-lead) supports sustained surge dissipation under pulsed conditions.
It complies with ANSI/IEEE C62.35 for transient suppression and is rated for -55°C to +175°C operating junction temperature. The device uses pure tin-plated leads compliant with J-STD-002 and passes JESD201 Class 2 whisker testing - critical for long-term reliability in vibration-prone automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58.1 V - maximum continuous reverse voltage before leakage exceeds 1 µA; sets upper limit for safe DC rail operation |
| VBR @ IT=1 mA | 64.6–71.4 V - guaranteed avalanche initiation range; defines minimum overvoltage threshold for clamping activation |
| VC @ IPP=4.3 A | 92.0 V - maximum clamped voltage during 10/1000 µs surge; determines worst-case stress on downstream ICs |
| PPK | 400 W - peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges |
| TJ max | +175 °C - maximum junction temperature; enables operation in under-hood automotive locations without thermal shutdown |
| RθJL | 60 °C/W - junction-to-lead thermal resistance; informs heatsinking requirements for repetitive surge events |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Lead finish: pure tin, solderable per J-STD-002. Weight: ~0.300 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential node; completes clamping path during reverse surge |
| Cathode | Avalanche breakdown terminal | Connected to protected line (e.g., 48 V supply rail); absorbs transient energy when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 400 W surge rating (10/1000 µs) | Withstands IEC 61000-4-5 combined wave surges up to ±2 kV without degradation |
| Clamping voltage ≤92.0 V at 4.3 A | Provides ≥20% margin below typical 110 V absolute max rating of 48 V automotive microcontrollers |
| Reverse leakage <1 µA @ 58.1 V | Minimizes standby power loss in always-on vehicle subsystems such as CAN wake-up receivers |
Applications
| Automotive Lighting Control | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LED driver ICs from load-dump transients in 12 V/24 V headlamp modules. IC Role / Device Role: Unidirectional TVS placed between supply rail and ground to clamp positive-going spikes. Use Value: Limits voltage excursion to ≤92.0 V, preventing latch-up or gate oxide damage in integrated MOSFET drivers. | Use Scenario: Safeguarding RS-485 transceivers in factory automation PLC I/O modules exposed to EFT bursts. IC Role / Device Role: Bidirectional clamping (via BZW04-58B variant used in dual-diode configuration) across differential bus lines. Use Value: Maintains signal integrity by suppressing fast transients up to 400 W without adding capacitance that degrades 10 Mbps data rates. |
| DC Power Rail Protection | Inductive Load Switching |
Use Scenario: Guarding microcontroller power inputs in battery-powered portable tools during hot-plug events. IC Role / Device Role: Standoff-rated TVS on 5 V or 3.3 V LDO output to absorb capacitive coupling spikes. Use Value: Leverages 58.1 V VWM to avoid conduction during normal operation while enabling sub-100 ns response to >65 V transients. | Use Scenario: Suppressing flyback voltage from solenoid valves in HVAC control panels. IC Role / Device Role: Unidirectional TVS across coil terminals to divert inductive kickback energy to ground. Use Value: Handles 4.3 A peak impulse current without failure, extending relay driver lifetime beyond 100,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A (Diodes Inc.) | Same DO-214AA package; 58 V VWM, 93.6 V VC @ 4.3 A; higher junction capacitance (150 pF vs. ~50 pF) | Less suitable for high-speed data lines due to higher parasitic capacitance | Prefer BZW04-58B where low capacitance and DO-41 through-hole mounting are required |
| P6KE56A (ON Semiconductor) | DO-15 package; 56 V VWM, 93.6 V VC @ 4.3 A; lower PPK (600 W but 1.5× larger footprint) | Requires PCB re-layout; not AEC-Q101 qualified | Choose BZW04-58B for space-constrained automotive boards needing AEC-Q101 compliance |
Compared with SMBJ58A and P6KE56A, the BZW04-58B delivers identical clamping performance in a smaller DO-41 form factor with certified automotive qualification - making it optimal for new designs targeting ASIL-B compatible systems without layout revision.
Availability
BZW04-58B is available at Aetrix Electronics and suitable for automotive lighting control, industrial sensor interface, and DC power rail protection requiring stable component supply across production lifecycles.
Supply support for BZW04-58B 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The BZW04 series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient immunity in harsh-environment electronic control units - emphasizing low clamping ratio, repeatable surge endurance, and extended temperature operation.
FAQ
What is the polarity configuration of the BZW04-58B?
The BZW04-58B is a unidirectional transient voltage suppressor diode, marked with a cathode band indicating the cathode terminal. It conducts only during reverse-biased overvoltage events - forward conduction is blocked above ~1.2 V. This polarity configuration makes BZW04-58B suitable for protecting positive DC rails where clamping to ground is required, unlike bidirectional variants like BZW04-58BB which suppress both polarities.
Does the BZW04-58B meet AEC-Q101 qualification?
Yes, the BZW04-58B is AEC-Q101 qualified when ordered with the "H" suffix (e.g., BZW04-58BH). Standard BZW04-58B parts may not carry full qualification unless explicitly specified in the ordering code. AEC-Q101 validation covers stress tests including HTGB, AC-H3TRB, and temperature cycling - confirming BZW04-58B's suitability for automotive powertrain and chassis applications where reliability is mission-critical.
What is the maximum clamping voltage of the BZW04-58B under surge conditions?
The maximum clamping voltage (VC) of the BZW04-58B is 92.0 V at a peak pulse current (IPP) of 4.3 A, tested with the standard 10/1000 µs double-exponential waveform. This value represents the worst-case voltage seen by downstream components during surge events and is measured at TA = 25°C. Derating applies above ambient temperature, with VC increasing slightly as junction temperature rises - a key consideration in thermally dense automotive ECUs where BZW04-58B is commonly deployed.
How does the BZW04-58B compare to the BZW04-58 in terms of electrical performance?
The BZW04-58B and BZW04-58 share identical electrical specifications including VWM (58.1 V), VBR (64.6–71.4 V), VC (92.0 V), and PPK (400 W). The "B" suffix denotes bidirectional capability - however, BZW04-58B is actually unidirectional, consistent with the base BZW04-58. Both parts use DO-41 packaging and have identical thermal and surge ratings. The distinction lies in marking and qualification path, not functional divergence.
What is the junction-to-ambient thermal resistance of the BZW04-58B?
The junction-to-ambient thermal resistance (RθJA) of the BZW04-58B is 100 °C/W when mounted on a printed circuit board with 10 mm lead length. This value assumes standard FR-4 substrate and no additional copper pour. For reliable operation under repetitive surge conditions, designers must ensure average power dissipation remains within steady-state limits (1 W at TL = 75°C), leveraging RθJA to calculate expected junction temperature rise above ambient - especially critical in sealed automotive enclosures where airflow is restricted.
BZW04-58B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- BZW04
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 4.3A
- 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)
BZW04-58B FAQ
1.How can I place an order for BZW04-58B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-58B 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 BZW04-58B reliable?
The price and inventory of BZW04-58B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-58B is usually 5 days.
3.What payment methods are accepted for BZW04-58B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-58B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-58B?
BZW04-58B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-58B 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 BZW04-58B?
For technical support, including BZW04-58B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-58B requirements.
6.How does Aetrix verify that BZW04-58B is sourced from the original manufacturer or authorized distributors?
All BZW04-58B 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 BZW04-58B meets industry standards.
7.What is the process for return or replacement of BZW04-58B?
All BZW04-58B units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-58B, 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 BZW04-58B part is unused and in its original packaging.
Return procedure for BZW04-58B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-58B Tags
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