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Taiwan Semiconductor Corporation BZW04-53B
- Part No.:
- BZW04-53B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-53B.pdf
- Description:
- TVS DIODE 53VWM 85VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,138
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Product details
Overview
BZW04-53B from Taiwan Semiconductor is a unidirectional transient voltage suppressor diode (TVS) designed for high-energy surge clamping in DC power rails and signal lines. It features a 53.0V working stand-off voltage, 58.9–65.1V breakdown voltage at 1mA, 4.7A peak pulse current, 85.0V maximum clamping voltage at IPP, and 400W peak pulse power rating per 10/1000μs waveform - deployed in automotive lighting control and industrial sensor interface protection.
For engineers reviewing the BZW04-53B datasheet, BZW04-53B pinout, BZW04-53B application, or BZW04-53B equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, leakage current at operating bias, thermal derating above 25°C, and AEC-Q101 qualification status for automotive use.
Technical Context
The BZW04-53B operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its specified VBR range (58.9–65.1V). Its low dynamic impedance enables rapid clamping response (<1 ns), limiting transient overvoltage to ≤85.0V at 4.7A IPP under standardized 10/1000μs surge conditions.
Thermal performance is defined by RθJL = 60°C/W (junction-to-lead) and RθJA = 100°C/W (junction-to-ambient on PCB), supporting operation from –55°C to +175°C. The device uses DO-204AL (DO-41) package with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 53.0 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for safe DC bias in protected circuit. |
| VBR @ IT=1mA | 58.9–65.1 V - Breakdown voltage tolerance band defining turn-on threshold; critical for margining against system overvoltage transients. |
| VC @ IPP=4.7A | 85.0 V - Clamped voltage during 10/1000μs surge; determines maximum stress imposed on downstream ICs. |
| PPK | 400 W - Peak pulse power handling capability; defines energy absorption capacity for single-event surges. |
| IR @ VWM | <1 μA - Reverse leakage at rated stand-off voltage; ensures minimal quiescent power loss and signal integrity in high-impedance nodes. |
| TJ max | +175°C - Maximum junction temperature; enables reliable operation in under-hood automotive or high-temperature industrial environments. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Dimensions conform to JEDEC DO-41 standard; weight ≈0.300g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., GND or return path); conducts during forward surge events. |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., VIN or signal line); avalanches into conduction when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - supports deployment in engine control, lighting, and body electronics. |
| 400W surge rating at 10/1000μs | Withstands high-energy transients per ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 4 without degradation. |
| Clamping voltage ≤85.0V at 4.7A | Provides ≥20% margin below typical 100V-rated microcontroller I/O absolute maximum ratings, reducing risk of latch-up or gate oxide damage. |
| Leakage <1μA above 10V | Enables use in battery-powered systems and high-impedance analog sensing paths without measurable offset or drain. |
Applications
| Automotive LED Headlamp Driver Protection | Industrial CAN Bus Power Line Protection |
|---|---|
Use Scenario: Protects LED driver ICs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple in 12V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT input and GND, clamping surges before they reach buck controller and gate drivers. Use Value: Limits voltage excursion to ≤85.0V during 100V/350ms load dump, preserving driver IC reliability and enabling smaller input capacitors. | Use Scenario: Shields isolated CAN transceiver power supply (VCC) from EFT bursts and inductive switching noise on 24V factory floor wiring. IC Role / Device Role / Timing Role: TVS connected across VCC–GND rail upstream of LDO regulator, absorbing fast 5kHz EFT bursts per IEC 61000-4-4. Use Value: Sub-1ns response prevents >85.0V spikes from propagating to transceiver VCC, avoiding brown-out resets and data corruption. |
| Smart Building Occupancy Sensor ESD Protection | PLC Digital Input Module Surge Suppression |
Use Scenario: Guards PIR and ambient light sensor signal conditioning circuitry against human-body-model (HBM) ESD events during installation or maintenance. IC Role / Device Role / Timing Role: Bidirectional-capable variant used on analog front-end inputs (e.g., BZW04-53B paired with series resistor), shunting ±8kV contact discharge. Use Value: Maintains <1μA leakage at 3.3V bias, preventing signal drift while clamping transients to safe levels for op-amp inputs. | Use Scenario: Installed across dry-contact inputs of programmable logic controllers to survive 2kV ring-wave surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: TVS placed between input terminal and common reference, clamping induced surges before optocoupler input stage. Use Value: 400W rating sustains repeated 1kV/0.5J surges without parameter shift, extending field service life beyond 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ53A | DO-214AA package (SMB), 53V VWM, 58.9–65.1V VBR, 85V VC @ 4.7A, same 400W rating | Surface-mount footprint; higher thermal resistance (RθJA ≈ 140°C/W) vs. DO-41's 100°C/W | Select SMBJ53A for space-constrained PCBs where reflow assembly is preferred and thermal margin allows. |
| P6KE56A | DO-15 package, 56V VWM, 62.2–68.7V VBR, 93.6V VC @ 4.3A, 600W rating but larger form factor | Higher clamping voltage (+8.6V) and wider VBR tolerance; not AEC-Q101 qualified | Choose P6KE56A only for non-automotive cost-sensitive designs requiring higher single-pulse energy absorption. |
Compared with SMBJ53A and P6KE56A, the BZW04-53B offers superior thermal performance in through-hole mounting, AEC-Q101 qualification for automotive use, and tighter VBR tolerance - making it optimal for thermally demanding, safety-critical, or high-reliability industrial deployments.
Availability
BZW04-53B is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC input modules, smart building sensor interfaces, and CAN bus power rail protection requiring stable component supply and long-term lifecycle support.
Supply support for BZW04-53B 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 Company (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 BZW04 series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial automation, and infrastructure applications where reliability under repetitive surge stress is mandatory.
FAQ
What is the maximum clamping voltage of the BZW04-53B during a 10/1000μs surge event?
The BZW04-53B has a maximum clamping voltage (VC) of 85.0 V when subjected to its rated peak pulse current of 4.7 A under the standardized 10/1000μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge conduction. The BZW04-53B maintains this clamping performance across its full operating temperature range.
Is the BZW04-53B suitable for automotive applications?
Yes - the BZW04-53B is offered in an AEC-Q101 qualified version (e.g., BZW04-53BH), validated for automotive-grade reliability including temperature cycling, high-temperature reverse bias, and ESD testing. Its –55°C to +175°C operating junction temperature range and DO-41 mechanical robustness make the BZW04-53B appropriate for under-hood and body electronics where surge immunity is critical.
What is the reverse leakage current specification for the BZW04-53B at its working stand-off voltage?
The BZW04-53B exhibits a maximum reverse leakage current (IR) of 1 μA when biased at its 53.0 V working stand-off voltage (VWM). This ultra-low leakage ensures minimal power loss and signal interference in high-impedance or battery-operated circuits. The BZW04-53B maintains this specification across its full temperature range and lifetime.
Does the BZW04-53B have bidirectional capability?
No - the BZW04-53B is a unidirectional TVS diode, marked with a cathode band and intended for DC line protection where polarity is fixed. For bidirectional AC or dual-polarity signal protection, the designated variant is BZW04-53B (note the "B" suffix), which provides symmetrical clamping in both directions. Always verify part marking and ordering code to distinguish unidirectional (BZW04-53B) from bidirectional (BZW04-53B) versions.
What package type does the BZW04-53B use, and what are its key mechanical attributes?
The BZW04-53B uses the DO-204AL (DO-41) axial-leaded package: epoxy-molded, UL 94V-0 rated, with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Its approximate weight is 0.300 g, and polarity is indicated by a cathode band. The BZW04-53B's lead configuration supports through-hole mounting with proven thermal performance in industrial and automotive assemblies.
BZW04-53B 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):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 4.7A
- 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)
BZW04-53B FAQ
1.How can I place an order for BZW04-53B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-53B 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 BZW04-53B reliable?
The price and inventory of BZW04-53B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-53B is usually 5 days.
3.What payment methods are accepted for BZW04-53B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-53B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-53B?
BZW04-53B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-53B 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 BZW04-53B?
For technical support, including BZW04-53B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-53B requirements.
6.How does Aetrix verify that BZW04-53B is sourced from the original manufacturer or authorized distributors?
All BZW04-53B 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 BZW04-53B meets industry standards.
7.What is the process for return or replacement of BZW04-53B?
All BZW04-53B units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-53B, 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 BZW04-53B part is unused and in its original packaging.
Return procedure for BZW04-53B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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