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Taiwan Semiconductor Corporation 5.0SMDJ75A
- Part No.:
- 5.0SMDJ75A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ75A.pdf
- Description:
- 5000W, 87.7V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,758
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Product details
Overview
5.0SMDJ75A 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 121V at 41.4A, and features a 75V working standoff voltage with <1.0ps response time. Used in AC/DC power supplies and industrial control I/O protection.
For engineers reviewing the 5.0SMDJ75A datasheet, 5.0SMDJ75A pinout, 5.0SMDJ75A application, or 5.0SMDJ75A equivalent, key selection criteria include clamping voltage (VC = 121V), breakdown voltage range (83.3–92.1V), thermal resistance (RθJL = 16°C/W), unidirectional polarity, and DO-214AB (SMC) package compatibility with automated SMT assembly.
Technical Context
The 5.0SMDJ75A employs a stacked-die construction to achieve high peak pulse power handling while maintaining low clamping ratio. Its unidirectional configuration provides forward conduction capability (VF = 5V @ 100A) and reverse-biased transient suppression, enabling use in polarized DC rail protection without external series blocking components.
Designed for robust thermal performance on standard PCBs, it achieves RθJL = 16°C/W when mounted on a 16mm × 16mm copper pad - critical for sustaining repeated surge events in industrial power supplies. The device operates across –55°C to +175°C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - Maximum continuous DC operating voltage before clamping initiates; defines safe operating margin for 72V nominal systems. |
| VBR min/max | 83.3 V / 92.1 V - Breakdown voltage range at 1 mA test current; ensures reliable turn-on above normal operating voltage. |
| VC @ IPP | 121 V - Clamping voltage at 41.4 A peak pulse current; determines maximum voltage stress imposed on protected downstream circuitry. |
| PPPM | 5000 W - Peak pulse power rating at 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity. |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance; enables effective heat transfer to PCB copper during repetitive surges. |
| TJ max | +175 °C - Maximum junction temperature; allows operation in high-ambient environments such as enclosed power converters. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads, RoHS-compliant and halogen-free per IEC 61249-2-21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connects to lower-potential side of protected line; conducts during reverse-transient clamping and forward fault conditions. |
| Cathode | Transient clamp reference | Connected to higher-potential rail; establishes clamping threshold relative to anode; marked by visible band on package body. |
Key Features
| Feature | Design Value |
|---|---|
| 5000W peak pulse power | Enables compliance with IEC 61000-4-5 surge immunity standards up to Level 4 (4 kV) without derating on standard PCB layouts. |
| Clamping voltage ≤121V at 41.4A | Provides predictable overvoltage limiting for 75V-rated systems, minimizing risk of MOSFET gate oxide failure or controller latch-up. |
| Response time <1.0 ps | Ensures suppression of fast-rising ESD and lightning-induced transients before sensitive ICs experience damage. |
| DO-214AB (SMC) package | Supports high-current routing via large copper pads; compatible with standard SMT pick-and-place and reflow profiles (J-STD-020 Level 1). |
Applications
| AC/DC Power Supply Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting rectified DC bus against line-to-line and line-to-ground surges in off-line SMPS front-ends. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across bulk capacitor input to clamp differential-mode transients. Use Value: Limits transient voltage to ≤121V, preventing overvoltage failure of primary-side controllers and bulk capacitors rated for 100V. | Use Scenario: Shielding 24V digital input channels in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protection element between field terminal and optocoupler input, referenced to common ground. Use Value: Withstands 5000W pulses without degradation, preserving signal integrity and eliminating need for external series impedance. |
| Motor Drive DC Bus Protection | Telecom Power Interface Protection |
Use Scenario: Safeguarding 72V DC bus in brushless motor drives against regeneration spikes and inductive kickback. IC Role / Device Role / Timing Role: Parallel-connected TVS across bus rails to absorb bidirectional energy during rapid deceleration events. Use Value: 175°C max junction temperature supports continuous operation in thermally constrained drive enclosures. | Use Scenario: Protecting -48V telecom power feeds from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to negative rail, suppressing positive-going transients on the supply line. Use Value: 75V VWM aligns with -48V system tolerance margins; 121V VC ensures downstream DC/DC converters remain within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | Lower peak power (600W), same DO-214AA package, VBR = 83.3–92.1V, VC = 121V | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surge environments | Select 5.0SMDJ75A where 5000W pulse handling is required; SMBJ75A only for cost-sensitive, low-surge applications. |
| SMCJ75A | Same 5000W rating and DO-214AB package, but VBR = 83.3–92.1V and VC = 121V match exactly; identical thermal specs | No functional difference; direct footprint-compatible alternative with same electrical performance | SMCJ75A is a second-source option with identical clamping behavior and thermal profile; verify manufacturer-specific qualification for automotive use cases. |
Compared with SMBJ75A and SMCJ75A, the 5.0SMDJ75A offers identical clamping performance to SMCJ75A but superior surge capacity versus SMBJ75A - making it the preferred choice for industrial power systems requiring full IEC 61000-4-5 Level 4 compliance without layout change.
Availability
5.0SMDJ75A is available at Aetrix Electronics and suitable for AC/DC power supply input protection, industrial PLC digital I/O protection, and motor drive DC bus protection requiring stable component supply and long-term production continuity.
Supply support for 5.0SMDJ75A 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 MOSFETs since 1979.
The 5.0SMDJxxA series was developed specifically for high-reliability industrial and telecom power systems demanding 5000W surge immunity in compact SMD packages, with emphasis on thermal robustness and automated assembly compatibility.
FAQ
What is the clamping voltage of the 5.0SMDJ75A under maximum rated surge current?
The 5.0SMDJ75A has a maximum clamping voltage (VC) of 121 V when subjected to its peak pulse current (IPP) of 41.4 A, measured at the standardized 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The 5.0SMDJ75A maintains this clamping performance due to its stacked-die construction and low dynamic impedance.
Is the 5.0SMDJ75A unidirectional or bidirectional, and how is polarity identified?
The 5.0SMDJ75A is a unidirectional TVS diode, meaning it clamps only in reverse bias and conducts forward current like a standard diode. Polarity is indicated by a cathode band on the DO-214AB (SMC) package body - the banded end connects to the higher-potential rail in typical applications. This configuration enables use in polarized DC systems without additional blocking components.
What is the maximum junction temperature rating for the 5.0SMDJ75A?
The 5.0SMDJ75A is rated for a maximum junction temperature (TJ) of +175°C, supporting operation in high-ambient environments such as enclosed power supplies and motor drive cabinets. This rating is validated under steady-state power dissipation conditions and accounts for thermal derating above 25°C ambient, as shown in the manufacturer's derating curve (Fig.2). The 5.0SMDJ75A retains full surge capability up to this limit.
Does the 5.0SMDJ75A meet RoHS and halogen-free requirements?
Yes, the 5.0SMDJ75A is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. The molding compound is UL 94V-0 rated, and the matte tin-plated leads satisfy J-STD-002 solderability requirements. These material specifications are confirmed in the official Taiwan Semiconductor datasheet Version D2102 and apply to all units shipped under standard ordering code 5.0SMDJ75A.
What is the thermal resistance from junction to lead (RθJL) for the 5.0SMDJ75A?
The junction-to-lead thermal resistance (RθJL) of the 5.0SMDJ75A is 16°C/W when mounted on a 16 mm × 16 mm copper pad test board, per JEDEC standards. This low thermal resistance enables efficient heat transfer from the silicon die to the PCB, supporting sustained surge duty cycles and improving reliability in thermally demanding applications. The 5.0SMDJ75A leverages this spec to maintain performance under repetitive 5000W pulses.
5.0SMDJ75A 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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 41.4A
- 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)
5.0SMDJ75A FAQ
1.How can I place an order for 5.0SMDJ75A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ75A 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 5.0SMDJ75A reliable?
The price and inventory of 5.0SMDJ75A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ75A is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ75A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ75A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ75A?
5.0SMDJ75A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ75A 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 5.0SMDJ75A?
For technical support, including 5.0SMDJ75A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ75A requirements.
6.How does Aetrix verify that 5.0SMDJ75A is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ75A 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 5.0SMDJ75A meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ75A?
All 5.0SMDJ75A units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ75A, 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 5.0SMDJ75A part is unused and in its original packaging.
Return procedure for 5.0SMDJ75A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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