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Taiwan Semiconductor Corporation 5.0SMDJ30A
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- Part No.:
- 5.0SMDJ30A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ30A.pdf
- Description:
- 5000W, 35.1V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,711
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Product details
Overview
5.0SMDJ30A 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 features a 30 V working standoff voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA, 103 A peak pulse current (IPP), 48.4 V clamping voltage (VC) at IPP, and 5000 W peak pulse power rating at 10/1000 µs waveform - enabling robust protection of 3.3 V–24 V logic and power rails against ESD, lightning-induced surges, and load dump transients.
For engineers reviewing the 5.0SMDJ30A datasheet, 5.0SMDJ30A pinout, 5.0SMDJ30A application, or 5.0SMDJ30A equivalent, key selection criteria include its DO-214AB (SMC) package compatibility with automated SMT assembly, sub-1 ps response time, ±0.103 mV/°C VBR temperature coefficient, 175 °C maximum junction temperature, and verified clamping performance under IEC 61000-4-5 Level 4 surge conditions.
Technical Context
The 5.0SMDJ30A employs a stacked-die construction in a unidirectional configuration, delivering low dynamic impedance and precise clamping behavior during fast-rising transients. Its photo-glass passivated junction ensures stable leakage (<2 µA at 30 V) and long-term reliability under thermal cycling and humidity stress.
Thermal design is supported by RθJL = 16 °C/W (junction-to-lead) and RθJA = 61 °C/W (junction-to-ambient) on a 16 mm × 16 mm copper pad PCB - enabling sustained operation up to 6.25 W at TL = 75 °C while maintaining TJ ≤ 175 °C under repetitive surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias range for 24 V systems. |
| VBR @ IT=1 mA | 33.3–36.8 V - Verified breakdown threshold ensuring predictable turn-on during overvoltage events. |
| VC @ IPP=103 A | 48.4 V - Clamped voltage level limiting downstream component stress during 10/1000 µs surges. |
| PPPM | 5000 W - Peak pulse power handling capability per IEC 61000-4-5, supporting Level 4 (4 kV) surge immunity. |
| IIB @ VWM | <2 µA - Ultra-low leakage preserves battery life and signal integrity in always-on circuits. |
| αVBR | 0.103 mV/°C - Predictable temperature drift enables accurate system-level margining across -55 °C to +175 °C. |
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. Moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or return path; forms clamping loop with cathode during transient conduction. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 24 V rail or RS-485 bus); conducts surge current to ground when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Peak pulse power | 5000 W at 10/1000 µs - Enables single-device protection against industrial-grade surges without parallel stacking. |
| Response time | <1.0 ps - Faster than most IC-level ESD protectors, minimizing voltage overshoot before clamping onset. |
| Junction temperature range | -55 °C to +175 °C - Supports operation in under-hood automotive, outdoor power supplies, and industrial motor drives. |
| RoHS & halogen-free | Compliant per IEC 61249-2-21 - Meets global environmental regulations and solder-reflow compatibility requirements. |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 24 V digital input channels in programmable logic controllers against induced surges from relay switching and nearby motor noise. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between field input and optocoupler input, clamping transients before they reach isolation barrier. Use Value: Maintains <2 µA leakage at 24 V to prevent false triggering, while clamping to 48.4 V ensures optocoupler CTR remains within spec under 1 kV/µs transients. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller GPIOs in body control modules exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary surge clamp on 12 V supply rail feeding BCM subsystems, coordinated with upstream fuse and downstream LDO. Use Value: Withstands 5000 W pulses and operates up to 175 °C ambient, eliminating need for derating in engine bay environments. |
| AC/DC Power Supply DC Output Stage | RS-485 Communication Port |
Use Scenario: Secondary-side overvoltage suppression on +5 V, +12 V, or +24 V outputs of isolated switch-mode power supplies used in factory automation equipment. IC Role / Device Role / Timing Role: Final-stage TVS placed immediately after output filter capacitor, absorbing residual ringing and external surge coupling. Use Value: 30 V VWM allows use on 24 V outputs without false triggering; 48.4 V VC limits downstream regulator input stress below absolute max ratings. |
Use Scenario: Transient protection for differential RS-485 data lines in building management systems subject to EFT and lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (one per line) referenced to local ground, providing symmetrical clamping without distorting differential signaling. Use Value: Sub-1 ps response preserves signal edge integrity; low capacitance (<100 pF typical) avoids data rate degradation at 10 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A (Bourns) | Same DO-214AA (SMB) package; 30 V VWM, 48.4 V VC, but lower PPPM (600 W) and IPP (33.3 A). | Not suitable for IEC 61000-4-5 Level 4; limited to consumer-grade surge environments. | Select only when board space constraints require SMB footprint and surge threat level is ≤ Level 2. |
| SMCJ30A (Littelfuse) | Identical DO-214AB (SMC) package; matches 30 V VWM and 48.4 V VC, but rated for 1500 W PPPM (300 A IPP). | Lower energy handling than 5.0SMDJ30A; insufficient for 4 kV open-circuit surge testing. | Acceptable for cost-sensitive industrial designs where full 5 kW rating is not mandated by end-equipment standards. |
Compared with SMBJ30A and SMCJ30A, the 5.0SMDJ30A delivers 3.3× and 3.3× higher peak pulse power respectively - making it the only option among the three qualified for full IEC 61000-4-5 Level 4 compliance in compact SMC packaging.
Availability
5.0SMDJ30A is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and AC/DC power supply DC output stages requiring stable component supply, long lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 5.0SMDJ30A 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, MOSFETs, and power management components since 1979.
The 5.0SMDJ30A belongs to TSC's high-power SMDJ series, engineered specifically for industrial and automotive applications demanding >4 kV surge immunity, extended temperature operation, and automated SMT manufacturability in DO-214AB packaging.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ30A under a 10/1000 µs surge?
The 5.0SMDJ30A has a maximum clamping voltage (VC) of 48.4 V when subjected to its rated peak pulse current (IPP) of 103 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees that downstream circuitry sees no more than 48.4 V during worst-case surge events - critical for protecting 3.3 V, 5 V, and 24 V logic and power rails. The 5.0SMDJ30A maintains this clamping performance across its full operating temperature range.
Is the 5.0SMDJ30A unidirectional or bidirectional, and how does that affect its placement?
The 5.0SMDJ30A is a unidirectional TVS diode, meaning it conducts only when the cathode is positive relative to the anode - functioning like a Zener diode in reverse bias. Its cathode band must be oriented toward the protected line (e.g., 24 V rail), with the anode tied to ground. This configuration blocks forward conduction during normal operation and ensures precise clamping only during negative-going transients on grounded systems. The 5.0SMDJ30A is not suitable for AC or floating-bus applications without additional circuitry.
What is the thermal resistance from junction to lead (RθJL) for the 5.0SMDJ30A, and why does it matter?
The 5.0SMDJ30A has a typical junction-to-lead thermal resistance (RθJL) of 16 °C/W when mounted on a 16 mm × 16 mm copper pad PCB. This parameter directly determines how effectively heat generated during surge events transfers from the silicon die to the PCB copper, influencing both single-pulse survivability and repetitive surge capability. A low RθJL enables the 5.0SMDJ30A to sustain 6.25 W steady-state dissipation at lead temperature (TL) = 75 °C - essential for thermally constrained layouts in enclosed industrial enclosures.
Does the 5.0SMDJ30A meet automotive AEC-Q200 stress test requirements?
The 5.0SMDJ30A is not AEC-Q200 qualified. While it operates from -55 °C to +175 °C and meets JESD201 Class 2 whisker resistance, it lacks formal qualification for temperature cycling, humidity bias, or mechanical shock tests required by AEC-Q200. For automotive applications, the 5.0SMDJ30A may be used in non-safety-critical modules (e.g., infotainment power rails) with customer-specific validation, but it is not approved for powertrain or ADAS systems. Always verify compliance with vehicle OEM requirements before deployment.
How does the 5.0SMDJ30A compare to the 5.0SMDJ33A in terms of system-level protection margin?
The 5.0SMDJ30A offers a 30 V working standoff voltage (VWM), while the 5.0SMDJ33A offers 33 V - making the 5.0SMDJ30A better suited for 24 V nominal systems where tighter margin above operating voltage is needed to avoid leakage-induced errors. Both share identical 5000 W PPPM and DO-214AB packaging, but the 5.0SMDJ30A's lower VWM provides earlier clamping onset and reduced risk of false triggering in noisy 24 V environments. System designers should select the 5.0SMDJ30A when VDC ≤ 26.4 V (110 % of 24 V) is guaranteed.
5.0SMDJ30A 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 103A
- 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)
5.0SMDJ30A FAQ
1.How can I place an order for 5.0SMDJ30A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ30A 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 5.0SMDJ30A reliable?
The price and inventory of 5.0SMDJ30A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ30A is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ30A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ30A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ30A?
5.0SMDJ30A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ30A 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 5.0SMDJ30A?
For technical support, including 5.0SMDJ30A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ30A requirements.
6.How does Aetrix verify that 5.0SMDJ30A is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ30A 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 5.0SMDJ30A meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ30A?
All 5.0SMDJ30A units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ30A, 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 5.0SMDJ30A part is unused and in its original packaging.
Return procedure for 5.0SMDJ30A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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