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Taiwan Semiconductor Corporation BZW06-85H
- Part No.:
- BZW06-85H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-85H.pdf
- Description:
- 600W, 100V, -%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,584
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Product details
Overview
BZW06-85H from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, with 85.5V working stand-off voltage, 95–105V breakdown voltage at 1mA, and 137V clamping voltage at 4.4A (10/1000μs). It delivers AEC-Q101 qualification for automotive-grade surge protection in power supply rails and interface lines.
For engineers reviewing the BZW06-85H datasheet, BZW06-85H pinout, BZW06-85H application, or BZW06-85H equivalent, this page provides verified electrical parameters, thermal performance data, polarity marking guidance, and direct alternatives for ESD and inductive switching transient suppression in automotive and industrial control systems.
Technical Context
The BZW06-85H operates as a unidirectional avalanche diode, designed to clamp transients above its VBR while maintaining low leakage (<1μA at 85.5V) and fast response (<1ps from 0V to VBR). Its junction-to-lead thermal resistance is 60°C/W, enabling reliable operation up to TJ = +175°C.
It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements. The device uses pure tin-plated leads compliant with J-STD-002 solderability standards and features cathode band polarity marking per DO-204AC mechanical outline.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1mA | 95–105 V - Breakdown voltage range defining reliable avalanche onset threshold |
| VC @ IPPM=4.4A (10/1000μs) | 137 V - Clamped voltage during 600W surge, limiting downstream stress |
| PPK | 600 W - Peak pulse power handling capability per non-repetitive 1ms waveform |
| TJ max | +175 °C - Maximum junction temperature supporting under-hood automotive deployment |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance enabling effective heat transfer to PCB copper |
| IR @ VWM | <1 μA - Low leakage ensures minimal standby current draw in high-impedance circuits |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band marking for unidirectional polarity.
| 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 | Avalanche clamping terminal | Marked with band; connected to protected line (e.g., 12V rail or CAN bus) to shunt overvoltage to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| 600W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation |
| Clamping voltage ≤137V @ 4.4A | Ensures protected ICs (e.g., MCU I/O, LIN transceivers) remain below absolute maximum ratings during transients |
| Dynamic impedance <31Ω (calculated) | Low VBR–VC differential supports tight clamping margin for sensitive 85V-rated components |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and automotive ELV directive requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed microcontroller power inputs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to clamp positive-going transients only. Use Value: Limits voltage excursion to ≤137V during 600W surges, preserving MCU VDD tolerance and avoiding brown-out resets. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC ADC inputs. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD and cable discharge events before signal conditioning stage. Use Value: Sub-1ps response time prevents latch-up in op-amps and SAR ADC front-ends during ±8kV contact ESD per IEC 61000-4-2. |
| Automotive Lighting Driver Protection | Motor Control Gate Drive Line Protection |
Use Scenario: Shielding LED driver ICs in headlamp modules from inductive kickback during PWM dimming. IC Role / Device Role / Timing Role: Unidirectional TVS across driver output and ground to suppress flyback spikes from LED string inductance. Use Value: 137V clamping prevents gate oxide damage in integrated MOSFET drivers rated for 100V drain-source max. | Use Scenario: Protecting isolated gate drivers (e.g., SiC half-bridge) from Miller-induced dv/dt coupling and shoot-through transients. IC Role / Device Role / Timing Role: TVS on high-side gate drive line referenced to source, clamping negative excursions during fast switching. Use Value: Low dynamic impedance minimizes voltage overshoot during 100ns-scale gate transients, improving noise immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85A | Same DO-214AA package; 85V VWM, 137V VC @ 4.4A, but rated at 600W with higher RθJA (110°C/W) | Lacks AEC-Q101 qualification; suitable for industrial but not automotive-critical nodes | Select SMBJ85A only when AEC-Q101 compliance is not required and board-level thermal management allows higher ambient rise |
| P6SMB85A | Identical electrical specs and DO-214AA package; RoHS-compliant but no AEC-Q101 documentation available | Used in consumer power adapters and telecom surge protectors; not validated for automotive temperature cycling | Prefer P6SMB85A for cost-sensitive non-automotive designs where full qualification traceability is not mandated |
Compared with SMBJ85A and P6SMB85A, the BZW06-85H offers guaranteed AEC-Q101 qualification, tighter thermal resistance (60°C/W vs. ≥110°C/W), and DO-204AC leadform optimized for through-hole reliability in vibration-prone environments - making it the preferred choice for under-hood automotive TVS placement.
Availability
BZW06-85H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and motor control gate drive line safeguarding requiring stable component supply and long-term lifecycle assurance.
Supply support for BZW06-85H 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 MOSFETs, with global distribution and AEC-Q101 validation capabilities.
The BZW06 series is engineered specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robustness under repeated surge stress, wide temperature operation, and compliance with stringent automotive reliability standards.
FAQ
What is the polarity configuration of the BZW06-85H?
The BZW06-85H is a unidirectional TVS diode with cathode band marking on the DO-204AC package. When installed, the cathode connects to the protected line (e.g., 12V rail), and the anode connects to ground. This configuration clamps only positive-going transients, making it ideal for DC power rail protection where reverse voltage is not expected.
Does the BZW06-85H meet AEC-Q101 requirements?
Yes, the BZW06-85H is explicitly AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's ordering code suffix "H" and product documentation (Version K2105). It has passed stress tests including temperature cycling, high-temperature operating life, and ESD per AEC-Q101 Rev D, making it suitable for automotive powertrain and chassis applications.
What is the maximum clamping voltage of the BZW06-85H under standard test conditions?
The BZW06-85H exhibits a maximum clamping voltage (VC) of 137 V at a peak pulse current (IPPM) of 4.4 A using the 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during a 600W transient event.
Can the BZW06-85H be used in bidirectional configurations?
No, the BZW06-85H is strictly unidirectional. For bidirectional protection, Taiwan Semiconductor offers the BZW06-85BH variant (with "B" suffix), which contains two anti-series diodes in the same DO-204AC package. Using the BZW06-85H in reverse-biased mode risks permanent breakdown due to lack of symmetric avalanche structure.
What is the thermal resistance profile of the BZW06-85H, and how does it affect PCB layout?
The BZW06-85H 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. To maintain TJ ≤175°C, PCB layout must provide adequate copper area on both leads - especially the cathode - and avoid excessive trace length or narrow traces that impede heat conduction away from the device body.
BZW06-85H 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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)
BZW06-85H FAQ
1.How can I place an order for BZW06-85H through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-85H 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 BZW06-85H reliable?
The price and inventory of BZW06-85H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-85H is usually 5 days.
3.What payment methods are accepted for BZW06-85H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-85H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-85H?
BZW06-85H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-85H 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 BZW06-85H?
For technical support, including BZW06-85H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-85H requirements.
6.How does Aetrix verify that BZW06-85H is sourced from the original manufacturer or authorized distributors?
All BZW06-85H 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 BZW06-85H meets industry standards.
7.What is the process for return or replacement of BZW06-85H?
All BZW06-85H units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-85H, 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 BZW06-85H part is unused and in its original packaging.
Return procedure for BZW06-85H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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