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Taiwan Semiconductor Corporation 5.0SMDJ24A
- Part No.:
- 5.0SMDJ24A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ24A.pdf
- Description:
- 5000W, 28.1V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,458
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Product details
Overview
5.0SMDJ24A 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 38.9V at 129A, and features a 24V working standoff voltage with <2μA leakage. Used in AC/DC power supplies and industrial control I/O protection.
For engineers reviewing the 5.0SMDJ24A datasheet, 5.0SMDJ24A pinout, 5.0SMDJ24A application, or 5.0SMDJ24A equivalent, key selection criteria include clamping voltage (VC = 38.9V), breakdown voltage range (26.7–29.5V), thermal resistance (RθJL = 16°C/W), unidirectional polarity, and DO-214AB package compatibility with automated SMT placement.
Technical Context
The 5.0SMDJ24A employs a stacked-die construction in a DO-214AB (SMC) package to achieve high peak pulse power handling while maintaining low clamping ratio. Its photo-glass passivated junction ensures stable breakdown characteristics and fast response (<1.0ps), critical for protecting sensitive downstream circuitry from ESD and lightning-induced surges.
Designed for unidirectional operation, it exhibits forward voltage of 5V at 100A and operates across –55°C to +175°C junction temperature. Thermal performance is characterized with RθJA = 61°C/W on a 16mm × 16mm copper pad, supporting reliable power dissipation in compact industrial PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 26.7 V / 29.5 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPP | 38.9 V - Clamped voltage at 129 A peak impulse current, limiting stress on protected ICs |
| PPPM | 5000 W - Peak pulse power handling capability per 10/1000 μs waveform, enabling robust surge immunity |
| IIB @ VWM | <2 μA - Ultra-low reverse leakage ensures minimal standby power loss in battery-backed systems |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance enables efficient heat transfer to PCB copper during repetitive surges |
| αVBR | 0.101 mV/°C - Temperature coefficient of breakdown voltage supports stable clamping over industrial temperature range |
Pinout & Package
Package: DO-214AB (SMC) - Surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, and cathode band polarity marking. Weight: 0.300 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side (e.g., GND or return path) in unidirectional TVS configuration |
| Cathode | Current exit terminal in forward bias; marked by band | Connected to protected line (e.g., 24V rail or signal line) to clamp positive transients to VWM + VC margin |
Key Features
| Feature | Design Value |
|---|---|
| 5000W peak pulse power | Enables protection against severe IEC 61000-4-5 Level 4 surges (4kV/2Ω) without failure |
| Clamping voltage ≤38.9V | Keeps downstream 24V logic or MCU I/O pins below absolute maximum ratings during 129A transients |
| Fast response time <1.0ps | Responds before most semiconductor junctions can be damaged by ESD or fast-rising lightning surges |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing cost and process complexity |
| Stacked die construction | Increases surge current capacity and thermal mass while retaining standard DO-214AB footprint |
Applications
| Industrial PLC I/O Protection | 24V DC Power Rail Protection |
|---|---|
Use Scenario: Protecting digital input modules in programmable logic controllers from induced surges on field wiring. IC Role / Device Role / Timing Role: Unidirectional TVS placed between field input and optocoupler input, clamping transients before they reach isolation barrier. Use Value: Prevents latch-up or damage to 24V-tolerant input buffers under 1kV/500Ω surge tests per IEC 61000-4-4. | Use Scenario: Safeguarding 24V supply inputs of motor drives and HMI panels against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Primary surge suppression device located at board edge, shunting energy to chassis ground before reaching DC-DC converters. Use Value: Limits voltage excursion to ≤38.9V during 5000W impulses, preserving input capacitor lifetime and preventing regulator overvoltage shutdown. |
| Factory Automation Sensor Interface | Building Management System (BMS) Controllers |
Use Scenario: Shielding analog 4–20mA transmitter inputs from ESD events during field maintenance or cable routing near AC mains. IC Role / Device Role / Timing Role: Low-leakage (≤2μA) TVS connected across input terminals, minimizing impact on loop accuracy while providing fast clamping. Use Value: Maintains sensor measurement integrity with <0.01% error contribution while surviving ±8kV contact ESD per IEC 61000-4-2. | Use Scenario: Securing RS-485 communication ports in HVAC controllers exposed to long cable runs and grounding differences. IC Role / Device Role / Timing Role: Unidirectional TVS on A/B bus lines referenced to local ground, suppressing common-mode surges without distorting differential signaling. Use Value: Ensures communication uptime by clamping transients to 38.9V before receiver input thresholds (±7V) are exceeded. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Lower peak power (600W vs. 5000W); same DO-214AA package; higher clamping voltage (43.5V) | Not suitable for IEC 61000-4-5 Level 4; limited to low-energy ESD or secondary protection | Select only when surge threat level is ≤1kV and space constraints prohibit DO-214AB |
| SMCJ24A | Same 5000W rating and DO-214AB package; slightly higher clamping (39.4V vs. 38.9V); identical VWM/VBR range | Direct functional replacement with negligible performance trade-off; widely stocked alternative | Preferred when seeking second-source availability without design change or layout adjustment |
Compared with SMBJ24A and SMCJ24A, the 5.0SMDJ24A offers the lowest clamping voltage in its 5000W class and is optimized for high-reliability industrial 24V systems where voltage margin to protected ICs is constrained.
Availability
5.0SMDJ24A is available at Aetrix Electronics and suitable for industrial PLC I/O protection, 24V DC power rail hardening, and factory automation sensor interface designs requiring stable component supply and long-term production continuity.
Supply support for 5.0SMDJ24A 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 Taiwanese manufacturer specializing in discrete semiconductors, including TVS diodes, rectifiers, and MOSFETs, with ISO/TS 16949 and ISO 14001 certifications.
The 5.0SMDJ series was developed specifically for high-power, surface-mount surge protection in industrial automation and power conversion systems where reliability under repeated transient stress is critical.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ24A under peak surge conditions?
The 5.0SMDJ24A has a maximum clamping voltage (VC) of 38.9 V when subjected to its rated peak pulse current of 129 A per the 10/1000 μs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. Designers must verify that downstream components tolerate this clamped voltage with sufficient margin.
Is the 5.0SMDJ24A suitable for bidirectional transient suppression?
No, the 5.0SMDJ24A is a unidirectional TVS diode, intended only for suppressing positive-going transients on DC lines referenced to ground. It does not protect against negative excursions beyond its forward voltage (5 V at 100 A). For bidirectional protection, a dedicated bidirectional part such as 5.0SMDJ24CA or separate back-to-back unidirectional devices are required.
What is the moisture sensitivity level (MSL) rating for the 5.0SMDJ24A?
The 5.0SMDJ24A is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions (≤30°C / 85% RH) without baking prior to reflow soldering. This eliminates pre-conditioning steps in SMT assembly and reduces risk of popcorning during reflow.
How does the thermal performance of the 5.0SMDJ24A compare to smaller-package TVS diodes?
The 5.0SMDJ24A achieves RθJL = 16°C/W and RθJA = 61°C/W when mounted on a 16 mm × 16 mm copper pad, significantly outperforming DO-214AA (SMB) or SOD-123 packages. This allows sustained energy dissipation and better survivability during repetitive surge events typical in industrial motor control environments.
Can the 5.0SMDJ24A be used in automotive applications?
The 5.0SMDJ24A is not AEC-Q200 qualified and is not recommended for automotive powertrain or safety-critical systems. While its -55°C to +175°C operating range overlaps with some automotive ambient requirements, TSC explicitly states these devices are not designed for medical, life-saving, or life-sustaining applications - a category that includes automotive ADAS and engine control.
5.0SMDJ24A 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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 129A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ24A FAQ
1.How can I place an order for 5.0SMDJ24A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ24A 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 5.0SMDJ24A reliable?
The price and inventory of 5.0SMDJ24A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ24A is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ24A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ24A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ24A?
5.0SMDJ24A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ24A 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 5.0SMDJ24A?
For technical support, including 5.0SMDJ24A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ24A requirements.
6.How does Aetrix verify that 5.0SMDJ24A is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ24A 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 5.0SMDJ24A meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ24A?
All 5.0SMDJ24A units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ24A, 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 5.0SMDJ24A part is unused and in its original packaging.
Return procedure for 5.0SMDJ24A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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