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Taiwan Semiconductor Corporation BZW06-48BH
- Part No.:
- BZW06-48BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-48BH.pdf
- Description:
- 600W, 56V, -%, BIDIRECTIONAL, TV
- Quantity:
- Payment:
- Shipping:
Inventory:4,389
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Product details
Overview
BZW06-48BH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode with a working stand-off voltage of 47.8 V, breakdown voltage of 53.2–58.8 V, and clamping voltage of 77.0 V at 7.8 A (10/1000 µs). It features AEC-Q101 qualification, low dynamic impedance, and sub-1 ps response time, designed for automotive ESD and inductive load surge protection.
For engineers reviewing the BZW06-48BH datasheet, BZW06-48BH pinout, BZW06-48BH application, or BZW06-48BH equivalent, key selection criteria include its DO-204AC (DO-15) package, 175 °C max junction temperature, AEC-Q101 compliance, and verified clamping performance under 10/1000 µs transients - critical for automotive power rail and sensor interface protection.
Technical Context
The BZW06-48BH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 53.2 V minimum breakdown threshold. Its clamping action limits transient-induced overvoltage to ≤77.0 V at 7.8 A, dissipating up to 600 W peak pulse power per IEC 61000-4-5 10/1000 µs waveform.
Thermal design relies on its 60 °C/W junction-to-lead resistance and 100 °C/W junction-to-ambient rating (L = 10 mm), supporting operation from –55 °C to +175 °C. Reverse leakage remains <1 µA above 47.8 V, ensuring minimal standby current in protected circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 53.2 V / 58.8 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold tolerance |
| VC @ IPPM | 77.0 V @ 7.8 A (10/1000 µs) - Peak clamped voltage during standardized surge; determines protected circuit's maximum stress level |
| PPK | 600 W - Peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges |
| TJ max | +175 °C - Maximum junction temperature; enables under-hood automotive deployment without derating |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance; informs heatsinking requirements for repetitive surge duty |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Lead finish: pure tin, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 48 V rail); conducts avalanche current when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Sub-1 ps response time (unidirectional) | Enables clamping before transient energy couples into downstream ICs - critical for CAN/LIN bus and sensor front-ends |
| Low dynamic impedance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving protection margin |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive; supports environmentally regulated automotive supply chains |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load dump and alternator ripple transients on 48 V mild-hybrid vehicle power distribution networks. IC Role / Device Role: Unidirectional TVS placed between 48 V rail and chassis ground to clamp surges up to ±120 V. Use Value: Clamps to 77.0 V at 7.8 A, preventing damage to DC-DC converters and microcontrollers rated for 60 V absolute maximum. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role: TVS mounted at connector entry point to shunt fast transients before reaching precision ADC input stages. Use Value: Sub-1 ps response ensures clamping initiates before 15 kV ESD pulse (IEC 61000-4-2) propagates into signal chain. |
| LED Lighting Driver Protection | Motor Control Board Surge Suppression |
Use Scenario: Safeguarding constant-current LED drivers in commercial lighting systems subjected to lightning-induced surges on AC mains input. IC Role / Device Role: Mounted across primary-side bulk capacitor to clamp switching spikes and line transients. Use Value: 600 W peak power rating handles 10/1000 µs surges up to 7.8 A without degradation, extending driver lifetime. | Use Scenario: Shielding gate drivers and current sense amplifiers on BLDC motor control boards from inductive kickback during MOSFET commutation. IC Role / Device Role: Placed across half-bridge leg supply rails to absorb flyback energy from motor windings. Use Value: Low dynamic impedance reduces clamping voltage overshoot, preventing false triggering of overvoltage protection circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48A | Same DO-214AA package; 48 V VWM, 70 V VC @ 8.6 A; 600 W rating; no AEC-Q101 qualification | Not certified for automotive use; suitable for industrial/commercial designs where qualification is not mandated | Select SMBJ48A only if AEC-Q101 compliance is unnecessary and DO-214AA footprint is preferred over DO-15 |
| P6SMB48A | DO-214AA package; identical electrical specs (48 V VWM, 70 V VC @ 8.6 A); RoHS-compliant but not AEC-Q101 qualified | Lacks automotive qualification; used in consumer electronics and non-safety-critical industrial equipment | Choose P6SMB48A for cost-sensitive, non-automotive applications requiring same clamping performance without qualification overhead |
Compared with SMBJ48A and P6SMB48A, the BZW06-48BH provides AEC-Q101 validation and DO-204AC packaging - enabling direct integration into automotive PCBs with legacy axial layouts and guaranteeing reliability under extended temperature and vibration stress.
Availability
BZW06-48BH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and LED lighting surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for BZW06-48BH 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 certification capabilities.
The BZW06 series was developed specifically for high-reliability automotive and industrial transient suppression, emphasizing robust surge handling, tight parameter tolerances, and extended temperature operation up to +175 °C.
FAQ
What does the "H" suffix in BZW06-48BH signify?
The "H" suffix in BZW06-48BH indicates full AEC-Q101 qualification, covering stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness. This certification confirms the BZW06-48BH meets automotive-grade reliability requirements for under-hood and powertrain applications - a distinction not shared by standard BZW06-48 variants.
Is BZW06-48BH unidirectional or bidirectional?
BZW06-48BH is a unidirectional TVS diode, as confirmed by its single cathode band marking, absence of symmetrical breakdown data in the datasheet, and specification of VBR only for unidirectional mode. It must be installed with cathode toward the protected line and anode to ground - unlike bidirectional types such as BZW06-48B.
What is the maximum clamping voltage of BZW06-48BH under a 10/1000 µs surge?
The maximum clamping voltage of BZW06-48BH under a 10/1000 µs surge is 77.0 V at a peak pulse current of 7.8 A, as specified in the "Clamping Voltage @ IPPM (10/1000 µs)" column of the electrical characteristics table. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Can BZW06-48BH replace BZW06-48 in an existing design?
Yes, BZW06-48BH is a drop-in replacement for BZW06-48 in terms of electrical parameters and DO-204AC (DO-15) package, but adds AEC-Q101 qualification. The BZW06-48BH maintains identical VWM (47.8 V), VBR (53.2–58.8 V), and VC (77.0 V) ratings - making it suitable for upgrading legacy designs to automotive-grade reliability without layout changes.
What is the junction-to-lead thermal resistance of BZW06-48BH?
The junction-to-lead thermal resistance (RθJL) of BZW06-48BH is 60 °C/W, as stated in the Thermal Performance section. This value reflects heat transfer efficiency from the silicon die to the lead frame under pulsed conditions and is essential for calculating temperature rise during repetitive surge events in thermally constrained environments.
BZW06-48BH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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)
BZW06-48BH FAQ
1.How can I place an order for BZW06-48BH through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-48BH 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 BZW06-48BH reliable?
The price and inventory of BZW06-48BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-48BH is usually 5 days.
3.What payment methods are accepted for BZW06-48BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-48BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-48BH?
BZW06-48BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-48BH 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 BZW06-48BH?
For technical support, including BZW06-48BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-48BH requirements.
6.How does Aetrix verify that BZW06-48BH is sourced from the original manufacturer or authorized distributors?
All BZW06-48BH 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 BZW06-48BH meets industry standards.
7.What is the process for return or replacement of BZW06-48BH?
All BZW06-48BH units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-48BH, 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 BZW06-48BH part is unused and in its original packaging.
Return procedure for BZW06-48BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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