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Taiwan Semiconductor Corporation BZW04-58
- Part No.:
- BZW04-58
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-58.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,744
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Product details
Overview
BZW04-58 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 (10/1000 μs), 92.0 V maximum clamping voltage, and 400 W peak pulse power rating. It is commonly deployed in automotive body control modules to protect CAN transceivers from load dump and EFT events.
For engineers reviewing the BZW04-58 datasheet, BZW04-58 pinout, BZW04-58 application, or BZW04-58 equivalent, key selection criteria include clamping voltage margin relative to IC absolute maximum ratings, leakage current below 1 μA at 58.1 V, thermal derating above 25°C ambient, and DO-41 package compatibility with manual or wave-solder assembly processes.
Technical Context
The BZW04-58 operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its 64.6–71.4 V breakdown range. Its low dynamic impedance ensures stable clamping during 10/1000 μs surges up to 400 W, while junction-to-lead thermal resistance of 60 °C/W supports reliable power dissipation under transient conditions.
It complies with ANSI/IEEE C62.35 surge waveform definitions and meets AEC-Q101 stress test requirements when ordered with "H" suffix. The device exhibits a temperature coefficient of 0.104 %/°C for VBR, enabling predictable voltage drift across –55°C to +175°C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58.1 V - Maximum continuous reverse voltage before significant leakage; sets upper limit for protected circuit DC rail. |
| VBR @ IT=1 mA | 64.6–71.4 V - Breakdown onset range; defines minimum overvoltage threshold for clamping activation. |
| VC @ IPP=4.3 A | 92.0 V - Clamped voltage during 10/1000 μs surge; must remain below protected IC's absolute max rating. |
| PPK | 400 W - Peak surge power handling at TA = 25°C; derates linearly above ambient per Fig.2. |
| ID @ VWM | <1 μA - Reverse leakage at stand-off voltage; ensures negligible standby current in always-on systems. |
| TJ max | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments. |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance; informs heatsinking needs when mounted on 9.5 mm leads. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Leads are pure tin plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential node; conducts during forward surge or bias conditions. |
| Cathode | Reverse breakdown terminal | Connected to protected line (e.g., CAN_H); avalanches into conduction when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option | Available with "H" suffix (e.g., BZW04-58H); validated for automotive under-hood reliability including temperature cycling and humidity testing. |
| Low clamping ratio | VC/VBR ≈ 1.34 (92.0 V / 68.5 V typ); minimizes overvoltage stress on downstream ICs during surge events. |
| Fast response time | <1 ps intrinsic avalanche delay; clamps within nanoseconds of overvoltage onset, limiting energy delivery to protected circuitry. |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive; suitable for environmentally regulated industrial and automotive production. |
| UL 94V-0 molding | Epoxy compound self-extinguishes within 10 seconds after flame removal; satisfies flammability requirements for enclosed electronics. |
Applications
| Automotive Load Dump Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: 12 V battery-fed ECUs subjected to ISO 7637-2 Pulse 5a (load dump up to 60 V, 400 ms). IC Role / Device Role / Timing Role: TVS diode placed between power rail and ground to clamp surge energy before it reaches PMIC or microcontroller input. Use Value: Limits rail voltage to ≤92.0 V during 400 W transient, preventing latch-up or gate oxide damage in 3.3 V/5 V logic. |
Use Scenario: CAN_H/CAN_L lines exposed to ESD (IEC 61000-4-2 ±8 kV contact) and EFT (IEC 61000-4-4 ±2 kV). IC Role / Device Role / Timing Role: Unidirectional BZW04-58 installed on CAN_H line with cathode to bus, anode to ground, suppressing positive transients only. Use Value: Sub-1 μA leakage preserves bus bias integrity; 92.0 V clamping avoids CAN transceiver common-mode failure during fast-rising spikes. |
| Industrial Power Supply Input Protection | LED Driver Overvoltage Clamp |
Use Scenario: 48 V DC input stage of programmable logic controller (PLC) power supply encountering lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge clamp on bulk input, upstream of input filter and rectifier, absorbing energy before front-end regulation. Use Value: 400 W 10/1000 μs rating handles multi-cycle surges; DO-41 package allows through-hole mounting on high-current PCB traces. |
Use Scenario: Constant-current LED driver output subjected to open-circuit transients during hot-plug or cable disconnect. IC Role / Device Role / Timing Role: TVS placed across LED string terminals to clamp flyback voltage generated by inductive energy storage in driver choke. Use Value: 92.0 V clamping prevents LED string overvoltage beyond 100 V rating; 175 °C TJ max supports operation near thermally dense LED heatsinks. |
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 (Bourns) | Same DO-214AA (SMB) package; 58 V VWM, 93.6 V VC @ 4.3 A; 600 W PPK rating; higher clamping voltage and different thermal profile. | Surface-mount alternative requiring PCB redesign; better suited for space-constrained layouts but less robust for high-temperature lead-soldered assemblies. | Select SMBJ58A only if SMT assembly is mandatory and board layout allows rework to SMB footprint. |
| P6KE56A (ON Semiconductor) | DO-15 package; 56 V VWM, 93.6 V VC @ 4.3 A; 600 W PPK; wider VBR tolerance (62.2–69.8 V); higher RθJA (75 °C/W). | Legacy through-hole option with identical electrical performance but larger DO-15 body and lower thermal efficiency than DO-41. | Choose P6KE56A only for legacy design continuity where DO-15 mechanical fit is required and thermal margin permits. |
Compared with SMBJ58A and P6KE56A, the BZW04-58 offers optimal balance of DO-41 manufacturability, 400 W surge capability, and 60 °C/W junction-to-lead thermal resistance-making it preferred for cost-sensitive, high-reliability through-hole automotive and industrial power protection where lead-solder thermal mass is leveraged.
Availability
BZW04-58 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC power inputs, and LED driver overvoltage protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZW04-58 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, specializing in high-reliability protection devices, rectifiers, and power management components.
The BZW04 series was engineered specifically for automotive-grade transient suppression in harsh environments, targeting ISO 7637-2 and IEC 61000-4-x compliance with AEC-Q101 qualification path and extended temperature operation.
FAQ
What is the polarity configuration of the BZW04-58?
The BZW04-58 is a unidirectional TVS diode, with cathode marked by a band on the DO-41 package body. It conducts in reverse bias above VBR and blocks forward current like a standard diode. This configuration makes BZW04-58 suitable for DC rail protection where only positive transients require suppression, unlike bidirectional variants such as BZW04-58B.
Does the BZW04-58 meet AEC-Q101 qualification?
The base BZW04-58 is not AEC-Q101 qualified; however, the variant BZW04-58H (with "H" suffix) is fully AEC-Q101 qualified per Rev J2104 documentation. BZW04-58H undergoes stress testing including temperature cycling, high-temperature operating life, and ESD, making it suitable for automotive under-hood applications where BZW04-58 alone would not be approved.
What is the maximum clamping voltage of the BZW04-58 under surge conditions?
The BZW04-58 has a maximum clamping voltage (VC) of 92.0 V at 4.3 A peak pulse current (IPP), tested with the standard 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage seen at the device terminals during worst-case surge events, critical for ensuring protected ICs remain within absolute maximum ratings.
How does the BZW04-58 compare to the P6KE56A in terms of thermal performance?
The BZW04-58 has a junction-to-lead thermal resistance (RθJL) of 60 °C/W, significantly lower than the P6KE56A's 75 °C/W. This 20% improvement allows BZW04-58 to dissipate surge energy more efficiently through its leads, reducing junction temperature rise during repetitive transients-a key advantage in thermally constrained automotive and industrial enclosures where lead-solder thermal mass is utilized.
Can the BZW04-58 be used in bidirectional signal line protection?
No-the BZW04-58 is strictly unidirectional and unsuitable for bidirectional signal lines like RS-485 or USB D+/D− without external circuitry. For such applications, the pin-compatible bidirectional variant BZW04-58B must be used. Using BZW04-58 on AC or bipolar signals risks forward conduction during negative half-cycles, potentially damaging the device or distorting signal integrity.
BZW04-58 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:
- 1
- Bidirectional Channels:
- -
- 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)
BZW04-58 FAQ
1.How can I place an order for BZW04-58 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-58 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 BZW04-58 reliable?
The price and inventory of BZW04-58 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-58 is usually 5 days.
3.What payment methods are accepted for BZW04-58?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-58 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-58?
BZW04-58 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-58 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 BZW04-58?
For technical support, including BZW04-58 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-58 requirements.
6.How does Aetrix verify that BZW04-58 is sourced from the original manufacturer or authorized distributors?
All BZW04-58 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 BZW04-58 meets industry standards.
7.What is the process for return or replacement of BZW04-58?
All BZW04-58 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-58, 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 BZW04-58 part is unused and in its original packaging.
Return procedure for BZW04-58:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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