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Taiwan Semiconductor Corporation BZW06-188H
- Part No.:
- BZW06-188H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-188H.pdf
- Description:
- 600W, 220V, -%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:6,319
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Product details
Overview
BZW06-188H from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 188V working stand-off voltage (VWM), 209–231V breakdown voltage (VBR) at 1mA, clamps to 301V at 2.0A (10/1000μs), and operates across –55°C to +175°C junction temperature. It is AEC-Q101 qualified and housed in DO-204AC (DO-15) package.
For engineers reviewing the BZW06-188H datasheet, BZW06-188H pinout, BZW06-188H application, or BZW06-188H equivalent, key selection criteria include its AEC-Q101 qualification, 600W peak pulse power rating, low dynamic impedance, sub-1ps response time (unidirectional), and compatibility with 10/1000μs surge waveforms in harsh-environment ESD and load-dump protection circuits.
Technical Context
The BZW06-188H is a silicon avalanche diode optimized for fast clamping of transient overvoltages on DC power lines. Its unidirectional polarity enables asymmetric protection-blocking reverse current while clamping positive surges above VBR. The device exhibits low dynamic impedance (<1Ω typical under surge conditions) and maintains stable VBR with ±0.108%/°C temperature coefficient.
It delivers 600W peak pulse power at TA = 25°C per 10/1000μs waveform, derates linearly above 25°C ambient, and supports steady-state dissipation up to 1.7W at TL = 75°C with 9.5mm lead length. Junction-to-lead thermal resistance is 60°C/W, enabling effective heat transfer into PCB copper during repetitive transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - Maximum continuous DC operating voltage before clamping begins |
| VBR @ IT=1mA | 209–231 V - Breakdown threshold where avalanche conduction initiates reliably |
| VC @ IPPM=2.0A (10/1000μs) | 301 V - Clamped voltage during standardized surge, defining protected circuit's max stress level |
| PPK | 600 W - Peak surge energy absorption capability without failure under defined waveform |
| TJ Operating Range | –55°C to +175°C - Enables use in under-hood automotive and industrial environments |
| IR @ VWM | <1 μA - Negligible leakage current ensures minimal standby power loss and signal integrity |
| RθJL | 60 °C/W - Low thermal resistance allows efficient heat conduction from junction to leads |
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 | Positive terminal under normal bias | Connected to protected line side; conducts only during reverse-biased avalanche |
| Cathode | Ground-reference terminal | Marked by band; ties to system ground or low-impedance return path for clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| 600W surge rating (10/1000μs) | Withstands high-energy load dump and ISO 7637-2 Pulse 5a/b transients without degradation |
| Clamping voltage ≤301V @ 2.0A | Ensures downstream ICs rated for ≤320V absolute maximum survive worst-case surge events |
| Response time <1.0 ps | Activates faster than most semiconductor switching transients, minimizing voltage overshoot |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
Applications
| Automotive Load-Dump Protection | Industrial Power Rail Surge Suppression |
|---|---|
Use Scenario: Protecting engine control unit (ECU) power input against ISO 7637-2 Pulse 5a (load dump) transients up to 60V superimposed on 14V nominal battery. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges before they reach sensitive regulators. Use Value: BZW06-188H's 188V VWM avoids false triggering during normal 14V operation while clamping 120V+ spikes to ≤301V, preserving regulator input ratings. | Use Scenario: Safeguarding PLC I/O module power supply against inductive kickback from solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Primary surge shunt on 24V DC bus, positioned upstream of filtering and regulation stages. Use Value: With 600W rating and 175°C max junction temperature, BZW06-188H sustains repeated 200V/1A transients in enclosed industrial enclosures without thermal runaway. |
| LED Driver Overvoltage Clamp | Telecom DC Feeder Protection |
Use Scenario: Preventing catastrophic failure of constant-current LED drivers exposed to lightning-induced surges on outdoor signage power feeds. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across driver input terminals to limit transient voltage excursion. Use Value: BZW06-188H's 188V VWM matches typical 150–200V LED string operating voltages, allowing safe margin while clamping >300V spikes within microsecond response. | Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from induced surges on 48V DC feeder lines running alongside AC mains. IC Role / Device Role / Timing Role: Secondary-level TVS on DC input stage, coordinated with primary GDT or MOV protection. Use Value: Low IR (<1μA) prevents loading of 48V supply; tight VBR tolerance (209–231V) ensures predictable clamping onset without premature conduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ188A | Same VWM (188V), lower PPK (600W same), but SMB package (surface-mount); RθJA = 40°C/W vs. BZW06-188H's 100°C/W | Requires PCB rework for SMT layout; better suited for space-constrained designs with forced airflow | Select SMBJ188A when board real estate is limited and thermal management via copper pour or heatsinking is feasible |
| P6KE188A | Same DO-15 package, identical VWM/VBR specs, but lower PPK (600W same), higher IR (≤5μA vs. ≤1μA), no AEC-Q101 qualification | Lacks automotive qualification; suitable for commercial/industrial use only | Choose P6KE188A for cost-sensitive non-automotive applications where AEC-Q101 is not mandated |
Compared with SMBJ188A and P6KE188A, the BZW06-188H uniquely combines AEC-Q101 qualification, ultra-low leakage (<1μA), and axial-leaded DO-15 packaging-making it the preferred choice for automotive under-hood power rail protection where reliability, thermal robustness, and through-hole assembly are required.
Availability
BZW06-188H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC power inputs, LED driver overvoltage clamping, and telecom DC feeder surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for BZW06-188H 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 power management, protection, and signal conditioning devices.
The BZW06 series was developed specifically for high-reliability transient suppression in automotive and industrial power systems, emphasizing AEC-Q101 compliance, wide temperature operation, and robust surge handling in axial-leaded packages.
FAQ
What is the polarity configuration of the BZW06-188H?
The BZW06-188H is a unidirectional TVS diode, with cathode indicated by a band on the DO-204AC (DO-15) package body. It conducts only when the anode is negative relative to the cathode-ideal for protecting positive DC rails against positive-going transients. This polarity ensures no conduction during normal forward-biased operation, unlike bidirectional variants such as BZW06-188BH.
Is the BZW06-188H suitable for ISO 7637-2 Pulse 5a compliance testing?
Yes, the BZW06-188H is explicitly designed for ISO 7637-2 Pulse 5a (load dump) protection. Its 600W peak pulse rating, 188V VWM, and 301V clamping voltage at 2.0A (10/1000μs) align with the energy and voltage requirements of this standard. When properly mounted with short traces and adequate PCB copper, the BZW06-188H helps automotive systems meet Pulse 5a immunity thresholds without additional external components.
What is the maximum allowable surge current for the BZW06-188H at 25°C ambient?
At TA = 25°C, the BZW06-188H supports a peak pulse current (IPPM) of 2.0A under the 10/1000μs waveform, corresponding to its 600W rating. For the 8/20μs waveform, the clamping voltage is 388V at 10.3A. These values are specified in the manufacturer's datasheet and validated per JEDEC standards; exceeding them risks parametric shift or permanent failure.
Does the BZW06-188H require derating at elevated ambient temperatures?
Yes, the BZW06-188H must be derated above 25°C ambient. Its peak pulse power capability decreases linearly: at 75°C ambient, it retains ~75% of rated 600W; at 125°C, ~50%. Derating curves are provided in Figure 2 of the official datasheet. Thermal design must account for RθJA = 100°C/W and RθJL = 60°C/W to avoid exceeding TJ(max) = 175°C during surge events.
How does the AEC-Q101 qualification impact the BZW06-188H's use in automotive applications?
The AEC-Q101 qualification confirms that the BZW06-188H has passed rigorous stress tests-including temperature cycling, high-temperature reverse bias (HTRB), and ESD-required for automotive under-hood and chassis-mounted electronics. This certification assures reliability in harsh environments and satisfies Tier 1 supplier requirements for power rail protection, distinguishing it from non-qualified alternatives like P6KE188A.
BZW06-188H 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):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 301V
- Current - Peak Pulse (10/1000µs):
- 2A
- 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)
BZW06-188H FAQ
1.How can I place an order for BZW06-188H through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-188H 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 BZW06-188H reliable?
The price and inventory of BZW06-188H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-188H is usually 5 days.
3.What payment methods are accepted for BZW06-188H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-188H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-188H?
BZW06-188H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-188H 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 BZW06-188H?
For technical support, including BZW06-188H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-188H requirements.
6.How does Aetrix verify that BZW06-188H is sourced from the original manufacturer or authorized distributors?
All BZW06-188H 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 BZW06-188H meets industry standards.
7.What is the process for return or replacement of BZW06-188H?
All BZW06-188H units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-188H, 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 BZW06-188H part is unused and in its original packaging.
Return procedure for BZW06-188H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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