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Taiwan Semiconductor Corporation BZW06-376H
- Part No.:
- BZW06-376H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-376H.pdf
- Description:
- 600W, 440V, -%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,177
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Product details
Overview
BZW06-376H from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 376V working stand-off voltage (VWM), 418–462V breakdown voltage (VBR), 600W peak pulse power (10/1000μs), and clamps to 603V at 1.3A, protecting sensitive ICs against ESD, EFT, and inductive switching transients in 12V–48V systems.
For engineers reviewing the BZW06-376H datasheet, BZW06-376H pinout, BZW06-376H application, or BZW06-376H equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AC (DO-15) package, low dynamic impedance, sub-1ps response time, and verified clamping performance under 10/1000μs surges - critical for robust front-end protection in automotive ECUs and industrial controllers.
Technical Context
The BZW06-376H operates as a unidirectional avalanche diode with sharp reverse-breakdown characteristics, triggered when transient voltage exceeds its 418–462V VBR range at 1mA test current. Its junction-to-lead thermal resistance (60°C/W) and 175°C max junction temperature support sustained operation in high-ambient environments.
It delivers 600W non-repetitive surge capability per IEC 61000-4-5 (10/1000μs waveform) and achieves <1.0ps response from 0V to VBR, enabling effective suppression of fast-rising ESD events before downstream circuitry is stressed. Reverse leakage remains below 1μA at 376V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 376V - Maximum continuous DC or RMS operating voltage before clamping initiates |
| VBR (min/max) | 418V / 462V @ 1mA - Ensures reliable turn-on above system nominal voltage with margin against tolerance drift |
| VC @ IPPM | 603V @ 1.3A (10/1000μs) - Clamping voltage defines worst-case stress on protected IC during surge |
| PPK | 600W - Peak pulse power rating determines survivability against IEC 61000-4-5 Level 4 surges |
| TJ max | 175°C - Enables use in under-hood automotive locations and high-temperature industrial enclosures |
| RθJL | 60°C/W - Low thermal resistance allows efficient heat transfer to PCB copper, supporting reliability in sustained surge duty |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; establishes reference for clamping action |
| Cathode | Protected line input | Connected to supply rail (e.g., 24V or 48V bus); conducts surge current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements |
| 600W surge rating (10/1000μs) | Meets IEC 61000-4-5 Level 4 immunity for 4kV line-to-ground surges in 2Ω/12Ω source impedance configurations |
| Clamping voltage ≤603V @ 1.3A | Ensures protected ICs experience <603V transient stress - sufficient margin below typical 650V MOSFET drain ratings |
| Response time <1.0ps | Activates faster than most microsecond-scale transients, minimizing voltage overshoot before clamping engages |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24V/48V supply lines in engine control units (ECUs) and body control modules (BCMs) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO/regulator input to clamp transients before they reach power management ICs. Use Value: Withstands 600W surges and clamps to 603V, preventing damage to downstream 650V-rated MOSFETs and PMICs in harsh automotive environments. | Use Scenario: Safeguarding digital input channels of programmable logic controllers (PLCs) connected to 24V field sensors exposed to inductive kickback. IC Role / Device Role / Timing Role: Front-end TVS on each discrete input channel, shunting induced energy from solenoid/valve coils directly to ground. Use Value: Sub-1ps response and low dynamic impedance limit voltage overshoot to <603V, preserving signal integrity and preventing false triggering of optocouplers or MCU GPIOs. |
| LED Driver Surge Suppression | Power Supply EFT Immunity |
Use Scenario: Protecting constant-current LED drivers in street lighting systems subjected to lightning-induced surges on AC mains or DC distribution lines. IC Role / Device Role / Timing Role: Mounted across primary-side DC bus (e.g., after bridge rectifier) to absorb repetitive 10/1000μs transients without degradation. Use Value: 175°C TJ max and 60°C/W RθJL enable stable operation in sealed outdoor enclosures; AEC-Q101 qualification ensures long-term reliability under thermal cycling. | Use Scenario: Enhancing immunity of industrial AC/DC power supplies to electrical fast transients (EFT) per IEC 61000-4-4 (±2kV, 5kHz burst). IC Role / Device Role / Timing Role: Placed at AC input stage or DC output rail to clamp nanosecond-scale EFT bursts before reaching PWM controllers or feedback circuits. Use Value: <1.0ps response time and <1μA IR at 376V minimize standby leakage while ensuring immediate clamping - critical for maintaining regulation stability during EFT events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ376A | Same VWM (376V), lower PPK (600W), but SMB package (DO-214AA) - smaller footprint, higher RθJA (110°C/W) | Preferred for space-constrained PCBs; less suitable for high-ambient or high-duty-cycle surge scenarios due to thermal limitations | Select SMBJ376A only if board area is critical and thermal derating can be accommodated via copper pour or airflow |
| P6SMB376A | Identical electrical specs and DO-214AA package; RoHS-compliant but not AEC-Q101 qualified | Acceptable for commercial/industrial use where automotive qualification is not mandated; lacks automotive stress validation | Choose P6SMB376A for cost-sensitive non-automotive designs where AEC-Q101 is unnecessary |
Compared with SMBJ376A and P6SMB376A, the BZW06-376H offers superior thermal performance (RθJL = 60°C/W vs. ~110°C/W) and automotive-grade reliability validation - making it the preferred choice for under-hood and mission-critical industrial deployments requiring long-term surge endurance.
Availability
BZW06-376H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC inputs, LED driver front-ends, and power supply EFT immunity circuits requiring stable component supply, AEC-Q101 compliance, and proven 600W surge handling.
Supply support for BZW06-376H 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors, with global distribution and AEC-Q101-qualified product lines.
The BZW06 series was developed specifically for high-reliability transient suppression in automotive and industrial power systems, emphasizing robust surge handling, tight VBR tolerances, and extended temperature operation up to 175°C.
FAQ
What does the 'H' suffix in BZW06-376H signify?
The 'H' suffix in BZW06-376H indicates full AEC-Q101 qualification - confirming that the BZW06-376H has passed rigorous automotive reliability tests including temperature cycling, highly accelerated life testing (HALT), and ESD robustness per JESD22-A114. This makes the BZW06-376H suitable for deployment in engine compartments, transmission control units, and other automotive subsystems where component failure is unacceptable.
Is BZW06-376H unidirectional or bidirectional?
The BZW06-376H is a unidirectional TVS diode, as confirmed by its single cathode band marking, absence of "B" suffix (which denotes bidirectional variants like BZW06-376B), and specification of VBR only under reverse bias conditions. It must be installed with cathode toward the protected line and anode to ground - incorrect polarity will prevent clamping during overvoltage events.
What is the maximum clamping voltage of BZW06-376H under standard test conditions?
The maximum clamping voltage of BZW06-376H is 603V at 1.3A peak pulse current using the 10/1000μs waveform, as specified in the manufacturer's electrical characteristics table. This value represents the upper bound of voltage seen by downstream components during a standardized surge event and is critical for verifying compatibility with the voltage ratings of protected ICs and passives.
Can BZW06-376H replace BZW06-376 in existing designs?
Yes - the BZW06-376H is a direct replacement for BZW06-376 in terms of electrical parameters, package (DO-204AC), and pinout. The only difference is the AEC-Q101 qualification added in the 'H' variant. No PCB layout changes are required, and the BZW06-376H maintains identical VWM (376V), VBR (418–462V), and VC (603V) specifications - making it a drop-in upgrade for automotive or high-reliability applications.
What is the thermal resistance profile of BZW06-376H, and why does it matter?
The BZW06-376H has a junction-to-lead thermal resistance (RθJL) of 60°C/W and junction-to-ambient (RθJA) of 100°C/W with 10mm lead length. These values directly impact power dissipation capability: lower RθJL enables more efficient heat transfer to PCB copper or heatsinks, allowing the BZW06-376H to sustain repeated surges without thermal runaway - especially important in enclosed industrial or automotive enclosures where ambient temperatures exceed 85°C.
BZW06-376H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- BZW06
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 376V
- Voltage - Breakdown (Min):
- 418V
- Voltage - Clamping (Max) @ Ipp:
- 603V
- Current - Peak Pulse (10/1000µs):
- 1.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
BZW06-376H FAQ
1.How can I place an order for BZW06-376H through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-376H 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 BZW06-376H reliable?
The price and inventory of BZW06-376H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-376H is usually 5 days.
3.What payment methods are accepted for BZW06-376H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-376H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-376H?
BZW06-376H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-376H 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 BZW06-376H?
For technical support, including BZW06-376H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-376H requirements.
6.How does Aetrix verify that BZW06-376H is sourced from the original manufacturer or authorized distributors?
All BZW06-376H 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 BZW06-376H meets industry standards.
7.What is the process for return or replacement of BZW06-376H?
All BZW06-376H units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-376H, 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 BZW06-376H part is unused and in its original packaging.
Return procedure for BZW06-376H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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