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Taiwan Semiconductor Corporation BZW06-26H
- Part No.:
- BZW06-26H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-26H.pdf
- Description:
- 600W, 30V, -%, UNIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:4,744
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Product details
Overview
BZW06-26H from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode with a 25.6V working stand-off voltage, 28.5–31.5V breakdown range at 1mA, and 41.5V clamping voltage at 14.5A (10/1000μs). It features AEC-Q101 qualification, low dynamic impedance, and <1μA reverse leakage above 10V - designed for automotive ESD and inductive load protection in engine control units and body electronics.
For engineers reviewing the BZW06-26H datasheet, BZW06-26H pinout, BZW06-26H application, or BZW06-26H equivalent, key selection criteria include its DO-204AC (DO-15) package, unidirectional polarity, AEC-Q101 qualification, 175°C max junction temperature, and verified clamping performance under 10/1000μs surge conditions.
Technical Context
The BZW06-26H operates as a unidirectional avalanche diode, leveraging silicon PN-junction breakdown to clamp transient overvoltages before they reach downstream ICs. Its fast response time (<1.0ps from 0V to VBR) ensures protection against nanosecond-scale ESD events, while its 600W peak pulse power rating applies specifically to non-repetitive 10/1000μs waveforms.
Thermal design is supported by RθJL = 60°C/W and RθJA = 100°C/W (L = 10mm), enabling reliable operation across -55°C to +175°C junction temperatures. The device's 0.097%/°C temperature coefficient of VBR allows predictable voltage drift over temperature in automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR @ IT=1mA | 28.5–31.5 V - Breakdown voltage range defining reliable avalanche onset threshold |
| VC @ IPPM=14.5A (10/1000μs) | 41.5 V - Clamped voltage during worst-case surge, limiting stress on protected circuitry |
| PPK | 600 W - Peak non-repetitive surge power handling capability per JEDEC standard waveform |
| IR @ VWM | <1 μA - Ultra-low reverse leakage preserves system standby current budget |
| TJ max | +175 °C - Enables placement near high-temperature automotive components without derating |
| αVBR | 0.097 %/°C - Predictable VBR drift over temperature for stable clamping margin |
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; weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line; conducts during overvoltage to clamp voltage to VC |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
| 600W surge rating (10/1000μs) | Withstands high-energy transients common in 12V automotive systems (e.g., load dump, ISO 7637-2 Pulse 5a) |
| Clamping voltage ≤41.5V @14.5A | Ensures protected ICs (e.g., CAN transceivers, microcontrollers) remain below absolute maximum ratings during surge |
| Dynamic impedance <1Ω (typ.) | Minimizes voltage overshoot during fast-rising transients by reducing effective series resistance during conduction |
| RoHS & halogen-free | Complies with EU RoHS Directive 2011/65/EU and IEC 61249-2-21 for environmentally constrained applications |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive CAN Bus Line Protection |
|---|---|
Use Scenario: Protects 12V supply rail of engine control modules from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Limits voltage to ≤41.5V during 600W surges, preventing damage to 40V-rated input capacitors and LDOs. | Use Scenario: Shields high-speed CAN FD transceivers from ESD and coupled noise on vehicle wiring harnesses. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; BZW06-26H used on power-supply side only - protects transceiver VCC pin. Use Value: Sub-1ns response ensures clamping initiates before ESD pulse reaches sensitive analog front-end circuitry. |
| Body Control Module (BCM) Switching Load Protection | LED Headlamp Driver Output Protection |
Use Scenario: Suppresses inductive kickback from relays and solenoids driven by BCM output stages. IC Role / Device Role / Timing Role: Mounted across relay coil terminals or MOSFET drain-source to absorb stored energy. Use Value: 600W rating handles repetitive switching surges up to 100A IFSM, extending MOSFET lifetime and reducing failure rate. | Use Scenario: Guards constant-current LED driver outputs against open-circuit transients and cable disconnect spikes. IC Role / Device Role / Timing Role: Connected between LED string anode and chassis ground to clamp reverse recovery spikes. Use Value: Low leakage (<1μA) avoids parasitic current paths that degrade dimming accuracy in PWM-controlled systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A | Same DO-214AA package; 26V VWM, 42.1V VC @ 14.3A; no AEC-Q101 qualification | Designed for industrial/commercial use; lacks automotive reliability validation and temperature cycling data | Select SMBJ26A only for non-automotive designs where cost sensitivity outweighs qualification requirements |
| 1.5KE27A | DO-201AD package; higher 1.5kW rating but larger footprint; 27V VWM, 43.0V VC @ 35A; no AEC-Q101 | Used in legacy power supplies and telecom; unsuitable for space-constrained automotive PCBs due to 5.3mm lead spacing | Choose 1.5KE27A only when surge energy exceeds 600W and board layout permits larger package |
Compared with SMBJ26A and 1.5KE27A, the BZW06-26H delivers automotive-grade reliability in a compact DO-15 form factor, with tighter VBR tolerance and lower clamping voltage - making it optimal for modern ECU and BCM designs requiring AEC-Q101 compliance and thermal robustness.
Availability
BZW06-26H is available at Aetrix Electronics and suitable for automotive engine control units, body electronics modules, LED lighting drivers, and industrial motor controllers requiring stable component supply with full AEC-Q101 traceability.
Supply support for BZW06-26H 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 ISO/TS 16949-certified automotive production lines.
The BZW06 series was developed specifically for automotive transient suppression, targeting AEC-Q101 compliance, high-temperature operation, and consistent clamping performance across wide production lots - addressing critical needs in ECU, BCM, and ADAS subsystems.
FAQ
What does the "H" suffix in BZW06-26H signify?
The "H" suffix in BZW06-26H indicates full AEC-Q101 qualification, confirming that the BZW06-26H has passed rigorous automotive reliability tests including temperature cycling, high-temperature reverse bias, and ESD immunity. This distinguishes it from standard BZW06-26 variants not intended for automotive use.
Is BZW06-26H unidirectional or bidirectional?
The BZW06-26H is a unidirectional TVS diode, as confirmed by its single cathode band marking and specification table listing only unidirectional VBR values. It must be oriented with cathode toward the protected line and anode to ground - unlike bidirectional types such as BZW06-26B.
What is the maximum peak pulse current the BZW06-26H can handle?
The BZW06-26H supports a peak pulse current of 14.5A under the standard 10/1000μs waveform, corresponding to its 600W rating. At shorter 8/20μs pulses, it clamps at 53.5V with a higher 75A peak current - both values are explicitly listed in the manufacturer's electrical characteristics table for BZW06-26H.
Does BZW06-26H meet RoHS and halogen-free requirements?
Yes, the BZW06-26H is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the official Taiwan Semiconductor documentation. Its molding compound meets UL 94V-0 flammability rating, and tin-plated leads comply with J-STD-002 solderability standards.
Can BZW06-26H replace SMAJ26A in an existing design?
No direct replacement: BZW06-26H uses DO-204AC (DO-15) packaging with axial leads, while SMAJ26A uses DO-214AC (SMA) surface-mount packaging. Physical mounting, thermal path, and PCB layout differ significantly - redesign is required. Electrical parameters are similar, but mechanical compatibility is absent.
BZW06-26H 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.5V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
BZW06-26H FAQ
1.How can I place an order for BZW06-26H through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-26H 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 BZW06-26H reliable?
The price and inventory of BZW06-26H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-26H is usually 5 days.
3.What payment methods are accepted for BZW06-26H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-26H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-26H?
BZW06-26H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-26H 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 BZW06-26H?
For technical support, including BZW06-26H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-26H requirements.
6.How does Aetrix verify that BZW06-26H is sourced from the original manufacturer or authorized distributors?
All BZW06-26H 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 BZW06-26H meets industry standards.
7.What is the process for return or replacement of BZW06-26H?
All BZW06-26H units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-26H, 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 BZW06-26H part is unused and in its original packaging.
Return procedure for BZW06-26H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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