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Taiwan Semiconductor Corporation BZW04-213B
- Part No.:
- BZW04-213B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-213B.pdf
- Description:
- TVS DIODE 213VWM 344VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,860
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Product details
Overview
BZW04-213B from Taiwan Semiconductor is a unidirectional transient voltage suppressor diode (TVS) designed for high-energy surge protection in automotive and industrial power rails. It features a 213 V working stand-off voltage (VWM), 237–263 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 µs), clamping voltage of 344 V at 1.2 A IPP, and operates across –55 °C to +175 °C junction temperature range.
For engineers reviewing the BZW04-213B datasheet, BZW04-213B pinout, BZW04-213B application, or BZW04-213B equivalent, this page delivers verified electrical specs, DO-41 package details, clamping performance under fast transients, thermal resistance data, and AEC-Q101-qualified alternatives for automotive EFT and load-dump protection design.
Technical Context
The BZW04-213B is a silicon avalanche diode optimized for unidirectional clamping in DC power lines subject to ISO 7637-2 load-dump and IEC 61000-4-4 EFT events. Its low dynamic impedance ensures stable clamping during 10/1000 µs surges up to 400 W, with <1 µA reverse leakage above 10 V and a 0.110 %/°C VBR temperature coefficient.
It uses a planar passivated junction structure in a DO-204AL (DO-41) axial package with pure tin-plated leads, rated for 175 °C maximum junction temperature and compliant with JESD201 Class 2 whisker testing. Thermal resistance is 60 °C/W junction-to-lead and 100 °C/W junction-to-ambient on PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 213 V - Maximum continuous DC or RMS voltage the device blocks without conduction |
| VBR @ 1 mA | 237–263 V - Breakdown threshold where avalanche conduction begins; defines minimum clamping onset |
| PPK (10/1000 µs) | 400 W - Peak surge energy absorption capability without failure; supports ISO 7637-2 Pulse 5a |
| VC @ IPP = 1.2 A | 344 V - Clamped voltage during full-rated surge; determines protected circuit's maximum overvoltage exposure |
| TJ max | +175 °C - Enables placement near hot components (e.g., power MOSFETs, engine control units) without derating |
| RθJL | 60 °C/W - Low thermal resistance enables efficient heat transfer to PCB copper pads or heatsinks |
| ID @ VWM | ≤1 µA - Ensures negligible standby current draw in always-on automotive modules |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94V-0 flammability rating. Cathode indicated by band marking. Lead finish: pure tin, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; forms clamping path during positive transients |
| Cathode | Protected line input | Connected to supply rail (e.g., 24 V battery line); conducts avalanche current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including temperature cycling, humidity bias, and mechanical shock per stress test requirements |
| 400 W peak pulse rating | Withstands ISO 7637-2 load-dump pulses (Pulse 5a) without degradation or parametric shift |
| Clamping voltage ≤344 V @ 1.2 A | Ensures downstream 300 V-rated MOSFETs or controllers remain within safe operating area during surge events |
| Low leakage ≤1 µA @ 213 V | Prevents measurable power loss in always-on vehicle networks (e.g., CAN wake-up circuits, body control modules) |
| 175 °C junction rating | Supports direct mounting on engine control units or power distribution boxes without thermal derating |
Applications
| Automotive Battery Rail Protection | Industrial PLC Power Input |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from ISO 7637-2 load-dump transients (up to 60 V × 400 ms) and jump-start spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ground, clamping positive overvoltage events before they reach DC-DC converters or microcontrollers. Use Value: Limits peak voltage to ≤344 V during 400 W surges, preserving 300 V-rated input capacitors and gate drivers in power management ICs. |
Use Scenario: Safeguarding programmable logic controller (PLC) 24 V DC inputs against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Standoff protector on field-side power entry; activated only during >237 V transients with sub-nanosecond response. Use Value: Prevents latch-up or permanent damage to isolated input buffers while maintaining <1 µA leakage during normal operation. |
| LED Streetlight Driver Input | Telecom Power Supply Surge Stage |
Use Scenario: Front-end surge suppression for outdoor LED drivers exposed to lightning-induced surges on AC/DC input lines. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection network; absorbs bulk energy before MOV or GDT secondary stage. Use Value: Delivers precise 213 V standoff with tight 237–263 V VBR tolerance, enabling coordinated staging with downstream 275 V MOVs. |
Use Scenario: Secondary-level transient suppression on -48 V telecom rectifier outputs subjected to IEC 61000-4-4 EFT bursts. IC Role / Device Role / Timing Role: Fast-response TVS parallel to load; clamps nanosecond-scale bursts that bypass bulk filtering. Use Value: Achieves 344 V clamping at 1.2 A with <100 ns response, limiting voltage overshoot to protect -48 V DC-DC controllers and monitoring ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ210A | Same DO-41 package, 210 V VWM, 233–258 V VBR, 400 W PPK, but rated only to +150 °C TJ max | Not AEC-Q101 qualified; suitable for industrial but not automotive underhood use | Select when ambient temperature stays below 125 °C and automotive qualification is unnecessary |
| Vishay 1.5KE220A | Higher 220 V VWM, 244–269 V VBR, 1500 W PPK, DO-201 package (larger, higher thermal mass), 175 °C rated | Over-specified power rating increases cost and board space; less precise VWM match for 213 V systems | Choose only if legacy 1.5KE footprint reuse is required and 1500 W margin is needed for extreme surge environments |
Compared with Littelfuse SMAJ210A and Vishay 1.5KE220A, the BZW04-213B provides tighter VWM alignment (213 V vs. 210 V or 220 V), AEC-Q101 compliance for automotive deployment, and optimal thermal resistance (60 °C/W) in the compact DO-41 form factor-making it the preferred choice for space-constrained, high-reliability 24 V system protection.
Availability
BZW04-213B is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input stages, and LED driver front-end surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for BZW04-213B 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 TVS diodes, rectifiers, and power MOSFETs for automotive and industrial markets.
The BZW04 series was developed specifically for high-reliability transient suppression in harsh-environment applications, emphasizing AEC-Q101 qualification, wide temperature operation, and precise VWM/VBR matching across voltage grades-including the BZW04-213B for 24 V battery systems.
FAQ
What is the polarity configuration of the BZW04-213B?
The BZW04-213B is a unidirectional TVS diode with cathode marked by a band on the DO-41 package. It conducts only during positive voltage transients on the cathode relative to anode (i.e., protects against overvoltage on the supply rail). It does not conduct during negative transients, making it unsuitable for bidirectional signal line protection without additional components.
Is the BZW04-213B AEC-Q101 qualified?
Yes, the BZW04-213B is AEC-Q101 qualified. Per Taiwan Semiconductor's ordering code, the "H" suffix denotes AEC-Q101 compliance, and the BZW04-213B part number includes this qualification. It has passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock per AEC-Q101 Rev D requirements.
What is the clamping voltage of the BZW04-213B at its rated peak pulse current?
The BZW04-213B has a maximum clamping voltage (VC) of 344 V at a peak pulse current (IPP) of 1.2 A, measured using the 10/1000 µs waveform. This value is specified in the manufacturer's electrical characteristics table and defines the upper voltage limit imposed on protected circuitry during a full-rated surge event.
Can the BZW04-213B be used in bidirectional applications?
No, the BZW04-213B is unidirectional only. For bidirectional protection, Taiwan Semiconductor offers the BZW04-213BB variant (not BZW04-213B). Using the BZW04-213B in a bidirectional configuration would leave the circuit vulnerable to negative transients, as it lacks reverse conduction capability beyond standard diode reverse breakdown.
What is the thermal resistance of the BZW04-213B, and how does it affect layout?
The BZW04-213B has a junction-to-lead thermal resistance (RθJL) of 60 °C/W and junction-to-ambient resistance (RθJA) of 100 °C/W on a PCB with 10 mm lead length. To maintain reliability under repeated surges, designers should use ≥5 × 5 mm copper pads per lead and minimize trace length to reduce thermal impedance-critical for sustaining 175 °C junction temperature capability.
BZW04-213B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- BZW04
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 213V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04-213B FAQ
1.How can I place an order for BZW04-213B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-213B 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 BZW04-213B reliable?
The price and inventory of BZW04-213B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-213B is usually 5 days.
3.What payment methods are accepted for BZW04-213B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-213B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-213B?
BZW04-213B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-213B 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 BZW04-213B?
For technical support, including BZW04-213B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-213B requirements.
6.How does Aetrix verify that BZW04-213B is sourced from the original manufacturer or authorized distributors?
All BZW04-213B 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 BZW04-213B meets industry standards.
7.What is the process for return or replacement of BZW04-213B?
All BZW04-213B units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-213B, 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 BZW04-213B part is unused and in its original packaging.
Return procedure for BZW04-213B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-213B Tags
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