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Taiwan Semiconductor Corporation BZW04-53
- Part No.:
- BZW04-53
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-53.pdf
- Description:
- TVS DIODE 53VWM 85VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,983
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Product details
Overview
BZW04-53 from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge clamping in automotive and industrial power rails. It features a 53.0 V working stand-off voltage, 58.9–65.1 V breakdown voltage at 1 mA, 4.7 A peak pulse current (10/1000 µs), 85.0 V maximum clamping voltage, and 400 W peak pulse power rating - protecting microcontroller I/O, CAN transceivers, and sensor interfaces against EFT and load dump.
For engineers reviewing the BZW04-53 datasheet, BZW04-53 pinout, BZW04-53 application, or BZW04-53 equivalent, key selection criteria include clamping voltage margin relative to system rail, leakage current at operating voltage, thermal derating above 25°C, and AEC-Q101 qualification status for automotive use cases.
Technical Context
The BZW04-53 operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its specified breakdown range. Its low dynamic impedance ensures rapid voltage clamping during 10/1000 µs transients, while junction-to-lead thermal resistance of 60 °C/W supports reliable power dissipation under repeated surge events.
Designed for PCB-level protection of 48 V and 60 V systems, it complies with IEC 61000-4-4 (EFT) and ISO 7637-2 (load dump), with reverse leakage ≤1 µA at 53.0 V and temperature coefficient of 0.104 %/°C - enabling stable clamping performance across -55°C to +175°C junction operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 53.0 V - maximum continuous reverse voltage before conduction begins; sets safe operating margin above 48 V nominal rail |
| VBR min/max | 58.9 V / 65.1 V @ 1 mA - defines guaranteed avalanche onset window for predictable clamping threshold |
| VC @ IPP | 85.0 V @ 4.7 A - peak clamped voltage during 10/1000 µs surge; determines maximum stress on downstream ICs |
| PPK | 400 W - peak pulse power handling capability; validates robustness against ISO 7637-2 Pulse 5a/b load dump |
| TJ max | +175 °C - maximum junction temperature; enables placement near hot components like power MOSFETs or DC-DC converters |
| ID @ VWM | ≤1 µA - ultra-low reverse leakage at stand-off voltage; minimizes standby power loss in battery-critical systems |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking. RoHS-compliant, halogen-free, UL 94V-0 rated molding compound; pure tin-plated leads, JESD 201 Class 2 whisker resistant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path; conducts during forward surge events (e.g., reverse battery) |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., CAN_H, LIN, 48 V rail); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W surge rating (10/1000 µs) | Validates immunity to ISO 7637-2 Pulse 5a (load dump) in 48 V automotive architectures |
| Clamping voltage ≤85.0 V | Ensures protected ICs (e.g., SBCs, CAN transceivers) remain within absolute maximum ratings during surge |
| Leakage ≤1 µA @ 53.0 V | Enables use in always-on vehicle modules without compromising battery drain budgets |
| AEC-Q101 qualified option available | Supports automotive-grade reliability requirements including temperature cycling, HTRB, and mechanical shock |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 48 V battery management system (BMS) monitoring lines from load dump transients during alternator disconnection. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and ground, clamping surges within 1 ns response time. Use Value: Limits voltage seen by analog front-end ADCs and isolated gate drivers to ≤85.0 V, preventing latch-up or oxide damage. | Use Scenario: Safeguarding RS-485 transceiver inputs in factory automation PLC I/O modules exposed to inductive switching noise. IC Role / Device Role / Timing Role: Standoff protection device on differential bus lines, absorbing EFT bursts per IEC 61000-4-4 Level 4. Use Value: Maintains signal integrity by suppressing >4 kV fast transients without adding capacitance that degrades 10 Mbps data rates. |
| Lighting System ESD Protection | Automotive CAN Transceiver Protection |
Use Scenario: Shielding LED driver ICs in headlamp modules from human-body-model (HBM) ESD events during assembly and service. IC Role / Device Role / Timing Role: Low-leakage TVS on power input pins, activated only during >8 kV contact discharge. Use Value: Prevents gate oxide rupture in integrated MOSFETs while drawing <1 µA during normal 53 V operation. | Use Scenario: Clamping induced transients on CAN_H/CAN_L lines caused by nearby relay switching or motor commutation. IC Role / Device Role / Timing Role: Bidirectional-capable variant (BZW04-53B) used across differential pair; unidirectional BZW04-53 applied to single-rail bias networks. Use Value: Keeps common-mode voltage excursion below 85.0 V, preserving CAN physical layer compliance and fault tolerance. |
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; 53.0 V VWM; 87.1 V VC @ 4.6 A; 600 W PPK | Higher surge rating but larger footprint; higher thermal resistance (RθJA = 110 °C/W vs. 100 °C/W) | Select SMBJ53A for higher single-pulse energy tolerance where board space permits |
| P6KE56A | DO-15 package; 56.0 V VWM; 93.6 V VC @ 4.3 A; 600 W PPK; no AEC-Q101 option | Higher clamping voltage reduces protection margin; not qualified for automotive use | Choose P6KE56A only for cost-sensitive industrial applications without automotive qualification needs |
Compared with SMBJ53A and P6KE56A, the BZW04-53 offers tighter clamping (85.0 V), lower leakage (≤1 µA), and optional AEC-Q101 qualification - making it optimal for space-constrained, thermally demanding, and automotive-compliant 48 V system protection.
Availability
BZW04-53 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, lighting system ESD mitigation, and CAN transceiver surge suppression requiring stable component supply across production lifecycles.
Supply support for BZW04-53 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 - serving automotive, industrial, and consumer markets since 1979.
The BZW04 series belongs to TSC's high-reliability transient suppression portfolio, engineered specifically for automotive-grade surge immunity and industrial EFT robustness in harsh environments with wide temperature operation.
FAQ
What is the maximum clamping voltage of the BZW04-53 under standard test conditions?
The BZW04-53 has a maximum clamping voltage (VC) of 85.0 V when subjected to a 10/1000 µs waveform at 4.7 A peak pulse current. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the BZW04-53 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the BZW04-53 is available in an AEC-Q101 qualified version (marked as BZW04-53H or BZW04-53HA0G). This variant undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and unbiased highly accelerated stress testing (uHAST), meeting automotive reliability standards for under-hood and chassis-mounted electronics.
What is the reverse leakage current specification for the BZW04-53 at its working stand-off voltage?
The BZW04-53 exhibits a maximum reverse leakage current (ID) of 1 µA at its 53.0 V working stand-off voltage (VWM), tested at 25°C. This ultra-low leakage ensures minimal power loss in always-on systems such as automotive body control modules and battery monitoring units where standby current budget is tightly constrained.
How does the thermal performance of the BZW04-53 compare to similar DO-41 TVS diodes?
The BZW04-53 has a junction-to-lead thermal resistance (RθJL) of 60 °C/W and junction-to-ambient resistance (RθJA) of 100 °C/W on a standard PCB layout. These values are competitive with other DO-204AL TVS diodes and enable effective heat dissipation during repetitive surge events - especially important in high-temperature environments like engine compartments.
Can the BZW04-53 be used in bidirectional configurations?
No - the BZW04-53 is a unidirectional TVS diode. For bidirectional protection, the designated variant is BZW04-53B, which features symmetrical breakdown characteristics and dual-clamping behavior. Using BZW04-53 in a bidirectional application would leave one polarity unprotected and may result in device failure during positive-going transients.
BZW04-53 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:
- 1
- Bidirectional Channels:
- -
- 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)
BZW04-53 FAQ
1.How can I place an order for BZW04-53 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-53 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 BZW04-53 reliable?
The price and inventory of BZW04-53 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-53 is usually 5 days.
3.What payment methods are accepted for BZW04-53?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-53 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-53?
BZW04-53 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-53 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 BZW04-53?
For technical support, including BZW04-53 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-53 requirements.
6.How does Aetrix verify that BZW04-53 is sourced from the original manufacturer or authorized distributors?
All BZW04-53 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 BZW04-53 meets industry standards.
7.What is the process for return or replacement of BZW04-53?
All BZW04-53 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-53, 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 BZW04-53 part is unused and in its original packaging.
Return procedure for BZW04-53:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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