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Taiwan Semiconductor Corporation 5.0SMDJ51A M6G
- Part No.:
- 5.0SMDJ51A M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ51A M6G.pdf
- Description:
- TVS DIODE 51VWM 82.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,794
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Product details
Overview
5.0SMDJ51A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and I/O interfaces. It delivers 5000W peak pulse power at 10/1000μs, clamps transients to 82.4V at 60.7A, and features a 51V working standoff voltage with <2μA leakage at rated VWM. It is used in industrial power supplies to protect downstream DC-DC converters from lightning-induced surges.
For engineers reviewing the 5.0SMDJ51A datasheet, 5.0SMDJ51A pinout, 5.0SMDJ51A application, or 5.0SMDJ51A equivalent, key selection criteria include its DO-214AB (SMC) package compatibility, 175°C junction rating, fast sub-1ps response time, and verified clamping performance under IEC 61000-4-5 Level 4 surge conditions.
Technical Context
This TVS diode operates in avalanche breakdown mode with a stacked-die construction to achieve high peak power handling in a compact SMC package. Its unidirectional configuration provides low forward voltage (5V @ 100A) and precise reverse standoff (51V), enabling integration into polarity-sensitive DC rails without additional series blocking components.
Thermal design is supported by a 16°C/W junction-to-lead resistance and 61°C/W junction-to-ambient rating on a 16mm × 16mm copper pad. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, ensuring robustness in automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 51 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 56.7 V / 62.7 V - Breakdown voltage range at 1 mA test current; defines turn-on threshold consistency |
| VC @ IPP | 82.4 V - Clamping voltage at 60.7 A peak pulse current; determines protected circuit's maximum transient exposure |
| PPPM | 5000 W - Peak pulse power dissipation capability per 10/1000 μs waveform; validates IEC 61000-4-5 compliance |
| TJ max | 175 °C - Maximum junction temperature; enables operation in high-ambient industrial environments |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance; supports thermal relief via PCB copper pour and lead soldering |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode-indicated by molded band. Case meets UL 94V-0 flammability rating; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side of protected line; conducts during positive overvoltage events |
| Cathode | Reverse-biased clamping node | Connected to higher-potential side; avalanches to clamp transients above VBR when reverse biased |
Key Features
| Feature | Design Value |
|---|---|
| 5000W peak pulse power | Enables single-device protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 24–48V DC rails |
| Sub-1ps response time | Clamps transients before sensitive ICs experience voltage overshoot beyond absolute maximum ratings |
| Stacked die construction | Increases surge current handling without increasing package footprint or thermal resistance |
| J-STD-020 MSL Level 1 | Eliminates pre-bake requirement for reflow soldering, reducing manufacturing cycle time and cost |
Applications
| Industrial AC/DC Power Supply Input Stage | Programmable Logic Controller (PLC) Digital I/O Protection |
|---|---|
Use Scenario: Protects rectified DC bus (e.g., 48V nominal) against lightning-induced surges entering via AC mains input. IC Role / Device Role / Timing Role: Unidirectional TVS placed across bulk capacitor to clamp differential-mode transients before they reach downstream regulators. Use Value: Limits transient voltage to ≤82.4V, preventing damage to 100V-rated MOSFETs and 60V-input DC-DC controllers. | Use Scenario: Shields 24V digital input channels in PLC backplanes from field-wiring induced ESD and inductive switching spikes. IC Role / Device Role / Timing Role: TVS connected between signal line and common ground to shunt fast transients (<1ns rise time) away from optocoupler inputs. Use Value: Sub-1ps response ensures clamping occurs before 100ns propagation delay of isolation barrier, preserving signal integrity. |
| Telecom Remote Radio Unit (RRU) Power Interface | Factory Automation Sensor Node Power Line |
Use Scenario: Secures 28V DC power feed to outdoor RRUs against induced surges from nearby lightning strikes on tower cabling. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at entry point of sealed enclosure, upstream of DC-DC converter and LDOs. Use Value: 5000W rating sustains multiple 10/1000μs surges without degradation, supporting 15-year field deployment requirements. | Use Scenario: Protects 12V/24V power input of distributed IO modules connected to long sensor cables in noisy factory environments. IC Role / Device Role / Timing Role: TVS placed directly at connector to minimize inductance in clamping path and reduce voltage overshoot. Use Value: DO-214AB package allows placement within 3mm of connector, achieving <15nH loop inductance for effective <100V clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ51A | Lower peak power (600W), same DO-214AA package, 51V VWM, 85.5V VC @ 7.0A | Not suitable for IEC 61000-4-5 Level 4; limited to low-energy ESD and inductive load switching | Select 5.0SMDJ51A where full 5000W surge immunity is required; SMBJ51A only for space-constrained, low-surge environments |
| SMCJ51A | Same 5000W rating and DO-214AB package, but 83.0V VC @ 60.3A and 175°C TJ max identical | Functionally interchangeable in most designs; minor clamping voltage variation (82.4V vs. 83.0V) | SMCJ51A is a direct functional alternative with near-identical electrical and thermal behavior; verify layout clearance for marking differences |
Compared with SMBJ51A and SMCJ51A, the 5.0SMDJ51A offers superior surge margin versus SMBJ51A and matches SMCJ51A in power handling while maintaining tighter clamping voltage tolerance (±5.5% VBR vs. ±6.0%), improving system-level overvoltage safety margin.
Availability
5.0SMDJ51A is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, programmable logic controller (PLC) I/O modules, and telecom remote radio unit (RRU) power interfaces requiring stable component supply and long-term lifecycle support.
Supply support for 5.0SMDJ51A 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, including TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q200 qualified product lines.
The 5.0SMDJ51A belongs to TSC's high-power SMD TVS family engineered for industrial-grade surge immunity in harsh environments-designed to replace through-hole P6KE devices while enabling automated SMT assembly and improved thermal reliability.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ51A under standard test conditions?
The 5.0SMDJ51A has a maximum clamping voltage (VC) of 82.4 V when subjected to a 10/1000 μs waveform peak impulse current (IPP) of 60.7 A. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuits during surge events. The clamping performance remains stable across the full operating temperature range due to the device's low VBR temperature coefficient of 0.107 mV/°C.
Is the 5.0SMDJ51A suitable for bidirectional transient suppression?
No, the 5.0SMDJ51A is a unidirectional TVS diode and is not rated for bidirectional operation. Its electrical specifications-including breakdown voltage, clamping voltage, and leakage current-are defined only for reverse-bias conditions. For AC line or bidirectional signal protection, a dedicated bidirectional variant such as 5.0SMDJ51CA must be selected instead of the 5.0SMDJ51A.
What is the recommended PCB pad layout for optimal thermal performance of the 5.0SMDJ51A?
Taiwan Semiconductor specifies a 16 mm × 16 mm copper pad for the 5.0SMDJ51A to achieve the published RθJA of 61°C/W. The pad must be thermally connected to internal ground or power planes using ≥4 thermal vias (0.3 mm diameter, spaced ≤2 mm apart) beneath the cathode and anode terminals. Avoid solder mask over the pad to maximize heat transfer and ensure reliable operation at 175°C junction temperature.
Does the 5.0SMDJ51A meet RoHS and halogen-free compliance standards?
Yes, the 5.0SMDJ51A is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and all terminations use matte tin plating per J-STD-002. Certificate of Compliance is available upon request from Aetrix Electronics for full material disclosure and supply chain traceability.
How does the 5.0SMDJ51A compare to the 5.0SMDJ51CA in terms of circuit integration?
The 5.0SMDJ51A is unidirectional and requires correct polarity placement relative to the protected line, whereas the 5.0SMDJ51CA is bidirectional and symmetric-making it suitable for AC-coupled signals or floating buses. Using the 5.0SMDJ51A in place of the 5.0SMDJ51CA without adjusting circuit polarity will result in forward conduction and potential failure. Always verify signal polarity and grounding topology before substituting between these variants.
5.0SMDJ51A M6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 5.0SMDJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 51V
- Voltage - Breakdown (Min):
- 56.7V
- Voltage - Clamping (Max) @ Ipp:
- 82.4V
- Current - Peak Pulse (10/1000µs):
- 60.7A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ51A M6G FAQ
1.How can I place an order for 5.0SMDJ51A M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ51A M6G 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 5.0SMDJ51A M6G reliable?
The price and inventory of 5.0SMDJ51A M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ51A M6G is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ51A M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ51A M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ51A M6G?
5.0SMDJ51A M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ51A M6G 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 5.0SMDJ51A M6G?
For technical support, including 5.0SMDJ51A M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ51A M6G requirements.
6.How does Aetrix verify that 5.0SMDJ51A M6G is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ51A M6G 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 5.0SMDJ51A M6G meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ51A M6G?
All 5.0SMDJ51A M6G units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ51A M6G, 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 5.0SMDJ51A M6G part is unused and in its original packaging.
Return procedure for 5.0SMDJ51A M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5.0SMDJ51A M6G Tags
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