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Taiwan Semiconductor Corporation BZW04-136
- Part No.:
- BZW04-136
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-136.pdf
- Description:
- TVS DIODE 136VWM 219VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,118
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Product details
Overview
BZW04-136 from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode with a 136V working stand-off voltage, 152–168V breakdown voltage at 1mA test current, and 219V maximum clamping voltage at 1.8A peak impulse current-designed for automotive-grade ESD and inductive load surge protection in power supply rails and signal lines.
For engineers reviewing the BZW04-136 datasheet, BZW04-136 pinout, BZW04-136 application, or BZW04-136 equivalent, key selection criteria include clamping performance under 10/1000μs transients, AEC-Q101 qualification status, DO-41 package thermal resistance (RθJA = 100°C/W), and low leakage (<1μA @ 136V).
Technical Context
The BZW04-136 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (152–168V). It delivers 400W non-repetitive peak pulse power per 10/1000μs waveform and maintains clamping voltage ≤219V at 1.8A IPP, enabling robust protection of downstream ICs against ISO 7637-2 and IEC 61000-4-5 surges.
Its junction-to-ambient thermal resistance is 100°C/W on standard PCB layout (Llead = 10mm), and it features <1μA reverse leakage at rated VWM (136V), ensuring minimal standby power loss in high-impedance circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 136 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1mA | 152–168 V - Avalanche breakdown threshold defining turn-on precision and tolerance band |
| VC @ IPP=1.8A | 219 V - Clamped voltage during 10/1000μs surge, limiting stress on protected circuitry |
| PPK | 400 W - Peak surge power handling capability under standardized transient waveform |
| IR @ VWM | <1 μA - Reverse leakage current ensuring negligible quiescent power draw |
| TJ max | +175 °C - Maximum junction temperature supporting operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient, guiding PCB copper pad design |
Pinout & Package
Package: DO-204AL (DO-41), 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 | Forward conduction terminal | Connected to system ground or low-side return path in unidirectional TVS configuration |
| Cathode | Reverse-biased surge clamp terminal | Connected to protected line (e.g., 136V rail); conducts avalanche current during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive applications including engine control units and body electronics requiring reliability under thermal cycling and vibration |
| 400W peak pulse power (10/1000μs) | Enables compliance with ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surge immunity testing |
| Clamping voltage ≤219V at 1.8A | Provides margin below typical 24V/48V system overvoltage thresholds while protecting 200V-rated MOSFETs or gate drivers |
| Low leakage <1μA @ 136V | Minimizes standby current in always-on vehicle modules such as telematics or CAN gateway nodes |
| DO-41 package with UL 94V-0 molding | Supports manual and automated through-hole assembly; flame-retardant housing meets automotive safety standards |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 136V nominal battery-fed subsystems (e.g., ADAS camera power supply) from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between input rail and ground to shunt surge energy away from DC-DC converters and image sensors. Use Value: Limits transient voltage to ≤219V, preserving 200V-rated input capacitors and preventing latch-up in 136V-tolerant PMICs. | Use Scenario: Safeguarding 120/240VAC PLC digital input modules against induced surges from nearby motor switching. IC Role / Device Role / Timing Role: Standoff voltage-matched TVS on AC-coupled opto-isolator inputs to absorb fast-rising EFT bursts without false triggering. Use Value: Maintains <1μA leakage at 136V working voltage, avoiding false logic states in high-impedance sensing circuits. |
| LED Driver Overvoltage Clamp | Telecom Line Interface Protection |
Use Scenario: Clamping transient spikes on constant-current LED driver outputs driving high-voltage strings (e.g., streetlight arrays). IC Role / Device Role / Timing Role: Parallel-connected TVS across output terminals to clamp inductive kickback from long cable runs or relay switching. Use Value: 400W surge rating absorbs multi-pulse events common in outdoor lighting installations without degradation. | Use Scenario: Secondary-level protection on telecom power feed lines (e.g., PoE++ midspan injectors) exposed to lightning-induced surges. IC Role / Device Role / Timing Role: High-VWM TVS placed after primary GDT or MOV to refine clamping level and protect downstream DC-DC controllers. Use Value: 136V VWM allows operation above PoE++ 57V nominal while clamping to 219V-within safe margin for 250V-rated isolation transformers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130A | Lower PPK (600W), higher VC (219V → 224V), SMC package (surface-mount) | Requires PCB rework for SMT vs. through-hole; better suited for space-constrained designs with automated assembly | Select SMBJ130A only if board layout supports SMC footprint and thermal management accommodates RθJA ≈ 40°C/W |
| P6KE150A | Same DO-41 package, lower PPK (600W), higher VWM (150V), higher VC (243V) | Less precise clamping margin for 136V systems; may allow excessive stress on 200V-rated components | Prefer BZW04-136 where tighter VWM/VC alignment with 136V rail is required for optimal protection margin |
Compared with SMBJ130A and P6KE150A, the BZW04-136 offers superior VWM matching to 136V systems, lower clamping voltage at rated current, and AEC-Q101 qualification availability-making it preferred for automotive and industrial applications demanding precise voltage coordination and reliability validation.
Availability
BZW04-136 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial PLC input conditioning, and LED driver overvoltage clamping requiring stable component supply and traceable sourcing.
Supply support for BZW04-136 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 devices since 1979.
The BZW04 series is part of TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for automotive and industrial surge immunity-emphasizing tight VBR tolerance, low leakage, and robust 400W transient handling in legacy DO-41 packaging.
FAQ
What is the breakdown voltage range for BZW04-136?
The BZW04-136 has a specified breakdown voltage (VBR) range of 152 V to 168 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent avalanche initiation across production lots and supports reliable clamping behavior in 136V system designs. The BZW04-136 achieves this specification using silicon junction technology optimized for tight parametric distribution.
Is BZW04-136 available in an AEC-Q101 qualified version?
Yes, the BZW04-136H variant is AEC-Q101 qualified and marked with "H" in the ordering code. This qualification confirms reliability under automotive environmental stresses including temperature cycling, mechanical shock, and humidity testing. The BZW04-136H shares identical electrical specifications with the standard BZW04-136 but undergoes additional screening and traceability controls required for automotive use.
What is the maximum clamping voltage of BZW04-136 during a surge event?
The BZW04-136 exhibits a maximum clamping voltage (VC) of 219 V at a peak impulse current (IPP) of 1.8 A under the 10/1000 μs waveform. This value is guaranteed across temperature and process variations and defines the upper voltage limit imposed on protected circuitry during transient events. The BZW04-136 achieves this clamping performance via controlled avalanche characteristics and low dynamic impedance.
Does BZW04-136 have bidirectional capability?
No, the BZW04-136 is a unidirectional TVS diode. Its datasheet specifies only unidirectional parameters (e.g., VBR, VC, IPP) and marks polarity with a cathode band. For bidirectional protection at 136V, the designated variant is BZW04-136B, which carries separate ordering codes and test data. The BZW04-136 must be oriented correctly in-circuit with cathode toward the protected line.
What package type does BZW04-136 use and what are its assembly requirements?
The BZW04-136 uses the DO-204AL (DO-41) axial-leaded package with pure tin-plated leads compliant with J-STD-002 solderability standards. It requires through-hole mounting on PCBs with minimum 5 × 5 mm copper pads per lead for thermal derating. The BZW04-136's weight is approximately 0.300 g, and its molding compound meets UL 94V-0 flammability rating for safety-critical applications.
BZW04-136 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):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 1.8A
- 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)
BZW04-136 FAQ
1.How can I place an order for BZW04-136 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-136 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 BZW04-136 reliable?
The price and inventory of BZW04-136 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-136 is usually 5 days.
3.What payment methods are accepted for BZW04-136?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-136 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-136?
BZW04-136 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-136 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 BZW04-136?
For technical support, including BZW04-136 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-136 requirements.
6.How does Aetrix verify that BZW04-136 is sourced from the original manufacturer or authorized distributors?
All BZW04-136 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 BZW04-136 meets industry standards.
7.What is the process for return or replacement of BZW04-136?
All BZW04-136 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-136, 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 BZW04-136 part is unused and in its original packaging.
Return procedure for BZW04-136:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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