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Taiwan Semiconductor Corporation BZW06-19BH
- Part No.:
- BZW06-19BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-19BH.pdf
- Description:
- 600W, 22V, -%, BIDIRECTIONAL, TV
- Quantity:
- Payment:
- Shipping:
Inventory:7,894
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Product details
Overview
BZW06-19BH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode with a 18.8V working stand-off voltage, 22V nominal breakdown voltage, and 30.6V clamping voltage at 19.6A (10/1000μs). It features AEC-Q101 qualification, low dynamic impedance, and sub-1ps response time, designed for automotive ESD and load-dump protection in power supply rails and signal lines.
For engineers reviewing the BZW06-19BH datasheet, BZW06-19BH pinout, BZW06-19BH application, or BZW06-19BH equivalent, key selection criteria include its DO-204AC (DO-15) package, unidirectional polarity, 175°C max junction temperature, and compliance with IEC 61249-2-21 halogen-free standards - all critical for under-hood automotive electronics and industrial power interface design.
Technical Context
The BZW06-19BH operates as a unidirectional avalanche diode, clamping transients above 18.8V while maintaining <1μA leakage at rated VWM. Its 600W peak pulse power rating is defined per 10/1000μs waveform, with thermal resistance RθJL = 60°C/W enabling robust surge handling in constrained PCB layouts.
It exhibits a positive temperature coefficient of 0.092%/°C for VBR, ensuring predictable voltage drift over temperature. The device is qualified to AEC-Q101 Grade 0 (−55°C to +175°C), with pure tin-plated leads compliant to J-STD-002 and JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.8 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/typ/max) | 20.9 / 22 / 23.1 V @ 1 mA - Ensures reliable triggering above system nominal rail |
| VC @ IPPM | 30.6 V @ 19.6 A (10/1000μs) - Limits downstream voltage stress during surge events |
| PPK | 600 W - Sustains high-energy transients common in automotive load-dump and ISO 7637-2 pulses |
| TJ max | +175 °C - Enables placement near hot components in engine control units and power modules |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 0.400 g mass and UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, epoxy-molded, cathode band marked on one end for unidirectional polarity identification. Leads are pure tin-plated, solderable per J-STD-002, with 9.5 mm lead length used for thermal ratings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; defines clamping reference point |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12V rail); conducts avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive Grade 0 operation (−55°C to +175°C), supporting under-hood deployment without derating |
| Clamping voltage ≤30.6 V | Keeps protected ICs (e.g., CAN transceivers, microcontrollers) within safe absolute maximum ratings during 19.6A surges |
| Response time <1 ps | Engages before fast ESD events (IEC 61000-4-2) propagate into sensitive analog or digital circuitry |
| RθJL = 60°C/W | Enables effective heat transfer to PCB copper pour or chassis, supporting repeated surge duty cycles |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated markets |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs against ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a/b (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground, clamping transients within 30.6V to preserve MCU and CAN PHY integrity. Use Value: Prevents latch-up or permanent damage to automotive-grade microcontrollers operating at 5V or 3.3V I/O, even during 120V/50ms load-dump events. | Use Scenario: Shielding 4–20mA current-loop sensor inputs from EFT (IEC 61000-4-4) and ESD (IEC 61000-4-2) in factory automation PLCs. IC Role / Device Role / Timing Role: Front-end transient suppressor on analog input traces, absorbing sub-100ns spikes before reaching precision op-amps or ADCs. Use Value: Maintains measurement accuracy by limiting voltage excursion to <31V, avoiding saturation or input-stage breakdown in instrumentation amplifiers. |
| LED Driver Overvoltage Clamp | DC-DC Converter Input Protection |
Use Scenario: Safeguarding constant-current LED drivers in vehicle lighting systems from alternator-induced voltage spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver input terminals, conducting only during >18.8V excursions to shunt energy to ground. Use Value: Extends LED module lifetime by preventing overvoltage stress on internal MOSFETs and gate drivers during cold-cranking or jump-start conditions. | Use Scenario: Input-side surge suppression for buck converters powering infotainment head units from vehicle battery. IC Role / Device Role / Timing Role: Primary transient clamp ahead of input capacitor and controller IC, reducing stress on bulk capacitance and switching FETs. Use Value: Eliminates need for oversized input capacitors or redundant clamping stages, lowering BOM cost and board area while meeting CISPR 25 Class 5 immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ19A | Same DO-214AA package; 19V VWM, 30.6V VC @ 19.6A, but rated for 600W with higher RθJA (110°C/W) | Lacks AEC-Q101 qualification; not validated for automotive under-hood use | Select SMBJ19A only for non-automotive industrial or consumer applications where qualification is not required |
| P6KE19A | DO-15 package like BZW06-19BH, but lower 600W rating applies only at TA = 25°C; derates faster above 75°C | No AEC-Q101 or halogen-free certification; lead finish not specified per J-STD-002 | Prefer BZW06-19BH when long-term reliability in automotive or green-compliance programs is mandatory |
Compared with SMBJ19A and P6KE19A, the BZW06-19BH delivers identical clamping performance in the same DO-15 footprint but adds AEC-Q101 validation, tighter thermal resistance (RθJL = 60°C/W), and full halogen-free/RoHS compliance - making it the sole choice for Tier-1 automotive power interface designs requiring zero qualification risk.
Availability
BZW06-19BH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and LED driver overvoltage clamping requiring stable component supply across multi-year production cycles.
Supply support for BZW06-19BH 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-compliant production lines.
The BZW06 series was engineered specifically for high-reliability automotive and industrial transient suppression, emphasizing robust surge handling, tight parametric tolerances, and extended temperature operation - directly addressing ISO 7637-2 and IEC 61000-4-x immunity requirements.
FAQ
What is the polarity configuration of the BZW06-19BH?
The BZW06-19BH is a unidirectional TVS diode, with cathode marked by a band on the DO-204AC (DO-15) package body. It conducts only during reverse-biased overvoltage events - i.e., when the cathode is at higher potential than the anode - and blocks normal forward current. This configuration matches standard 12V automotive power rail protection topologies where the cathode connects to the protected line and the anode to ground. The BZW06-19BH does not function as a bidirectional device.
Does the BZW06-19BH meet AEC-Q101 requirements?
Yes, the BZW06-19BH is explicitly AEC-Q101 qualified per the manufacturer's documentation and ordering code suffix "H". It is tested and certified for Grade 0 operation (−55°C to +175°C), including stress tests for high-temperature reverse bias, temperature cycling, and mechanical shock. This qualification confirms suitability for under-hood automotive applications such as engine control modules, body controllers, and ADAS power supplies - unlike non-H variants or generic TVS diodes lacking formal AEC-Q101 validation.
What is the maximum clamping voltage of the BZW06-19BH under standard test conditions?
The BZW06-19BH has a maximum clamping voltage (VC) of 30.6 V at a peak pulse current (IPPM) of 19.6 A, measured using the 10/1000 μs double-exponential waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by downstream circuitry during worst-case surge events. The BZW06-19BH maintains this clamping performance with low dynamic impedance, ensuring consistent protection without excessive voltage overshoot.
Can the BZW06-19BH be used in bidirectional configurations?
No, the BZW06-19BH is strictly unidirectional and must not be used in bidirectional signal-line protection. Its electrical characteristics - including breakdown voltage symmetry, capacitance profile, and clamping behavior - are specified only for reverse-bias operation. For bidirectional applications (e.g., RS-485, USB, or CAN bus lines), the manufacturer offers the BZW06-19BH's counterpart BZW06-19B, which is explicitly designed and characterized for symmetrical bipolar clamping. Using the BZW06-19BH in place of a bidirectional part risks incomplete protection and potential device failure.
What is the thermal resistance from junction to lead (RθJL) for the BZW06-19BH?
The BZW06-19BH has a typical junction-to-lead thermal resistance (RθJL) of 60°C/W, measured with 9.5 mm lead length at TL = 75°C. This parameter reflects how efficiently heat generated during surge conduction transfers from the silicon die to the PCB copper or heatsink via the leads. A lower RθJL enables higher repetitive surge capability and improved reliability in thermally constrained environments - a key advantage over alternatives like P6KE19A (RθJL not specified) or SMBJ19A (RθJL not published, RθJA = 110°C/W).
BZW06-19BH 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- 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)
BZW06-19BH FAQ
1.How can I place an order for BZW06-19BH through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-19BH 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 BZW06-19BH reliable?
The price and inventory of BZW06-19BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-19BH is usually 5 days.
3.What payment methods are accepted for BZW06-19BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-19BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-19BH?
BZW06-19BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-19BH 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 BZW06-19BH?
For technical support, including BZW06-19BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-19BH requirements.
6.How does Aetrix verify that BZW06-19BH is sourced from the original manufacturer or authorized distributors?
All BZW06-19BH 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 BZW06-19BH meets industry standards.
7.What is the process for return or replacement of BZW06-19BH?
All BZW06-19BH units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-19BH, 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 BZW06-19BH part is unused and in its original packaging.
Return procedure for BZW06-19BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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