Taiwan Semiconductor Corporation 5.0SMDJ30AH
- Part No.:
- 5.0SMDJ30AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ30AH.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AB
- Quantity:
- Payment:

- Shipping:

Inventory:6,000
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Product details
Overview
5.0SMDJ30AH 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, 33.3–36.8 V breakdown voltage at 1 mA, 103 A peak pulse current (10/1000 µs), 48.4 V clamping voltage at IPP, and operates across –55 °C to +175 °C junction temperature range.
For engineers reviewing the 5.0SMDJ30AH datasheet, 5.0SMDJ30AH pinout, 5.0SMDJ30AH application, or 5.0SMDJ30AH equivalent, key selection criteria include clamping performance under 5000 W peak pulse power, DO-214AB (SMC) package compatibility with automated SMT assembly, AEC-Q101 qualification for automotive-grade reliability, and low leakage (<2 µA at 30 V).
Technical Context
The 5.0SMDJ30AH employs a photo-glass passivated silicon junction and stacked-die construction to achieve robust 5000 W peak pulse power handling per 10/1000 µs waveform. Its fast response time (<1.0 ps) ensures effective suppression of ESD and lightning-induced transients before sensitive downstream circuitry is affected.
Thermally, it delivers RθJL = 16 °C/W and RθJA = 61 °C/W when mounted on a 16 mm × 16 mm copper pad PCB, supporting stable operation up to 175 °C junction temperature. The device is unidirectional, polarity-marked by cathode band, and rated for moisture sensitivity level 1 (J-STD-020).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before leakage exceeds 2 µA; defines safe DC bias limit. |
| VBR @ IT=1 mA | 33.3–36.8 V - Breakdown threshold range; ensures reliable turn-on during overvoltage events. |
| VC @ IPP=103 A | 48.4 V - Clamping voltage under full-rated surge; limits stress on protected ICs. |
| PPPPM | 5000 W - Peak pulse power capability at 10/1000 µs; meets IEC 61000-4-5 Level 4 surge immunity. |
| TJ Range | –55 °C to +175 °C - Extended thermal operating envelope suitable for under-hood automotive and industrial environments. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 7.11 mm × 6.22 mm footprint and 2.39 mm height; compatible with J-STD-002 soldering. |
Pinout & Package
DO-214AB (SMC) package: two-terminal unidirectional device with cathode indicated by molded band. Leads are matte tin-plated, compliant with JESD 201 Class 2 whisker resistance and RoHS/halogen-free requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential rail; forms current path during reverse-biased clamping. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 30 V supply rail); polarity marking ensures correct orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| Photo-glass passivated junction | Enhances long-term reliability and stability of VBR and leakage under thermal cycling and humidity exposure. |
| Stacked-die configuration | Enables 5000 W pulse power rating in compact DO-214AB package without derating due to thermal crowding. |
| Fast response time <1.0 ps | Clamps transients before propagation into microcontroller GPIOs or power management ICs. |
Applications
| Automotive Power Rail Protection | Industrial DC Input Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input. Use Value: Clamps surges to ≤48.4 V while absorbing 5000 W peak energy, preventing damage to downstream regulators and MCUs. | Use Scenario: Safeguarding programmable logic controller (PLC) 24 V digital input modules from field-wiring transients. IC Role / Device Role / Timing Role: Primary surge clamp on isolated 24 V input channel prior to optocoupler or signal conditioner. Use Value: Maintains <2 µA leakage at 30 V, ensuring clean signal detection while surviving repeated 10/1000 µs surges. |
| Telecom Power Interface | Motor Drive Control Board |
Use Scenario: Protecting PoE-powered equipment front-end from Ethernet cable-induced surges. IC Role / Device Role / Timing Role: Secondary TVS on 48 V DC input stage after primary filter and before DC-DC isolation. Use Value: Withstands 103 A peak current and 48.4 V clamping, preserving integrity of IEEE 802.3af/at compliance margins. | Use Scenario: Shielding gate driver supply rails in BLDC motor inverters from switching noise and back-EMF spikes. IC Role / Device Role / Timing Role: Local clamp on 12–30 V auxiliary supply feeding half-bridge drivers. Use Value: Fast <1.0 ps response prevents false triggering of overvoltage lockout circuits during high-dV/dt commutation events. |
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 | Lower peak power rating (600 W vs. 5000 W); same DO-214AA package but smaller thermal mass. | Not suitable for ISO 7637-2 load dump; limited to low-energy ESD and signal-line protection. | Select only where surge energy is below 100 mJ and board space constraints preclude larger SMC package. |
| SMCJ30A | Same DO-214AB (SMC) package and 5000 W rating, but non-AEC-Q101; VC = 48.4 V matches 5.0SMDJ30AH exactly. | Lacks automotive qualification; acceptable for industrial/commercial power supplies where AEC-Q101 is not mandated. | Drop-in replacement for non-automotive designs requiring identical electrical performance and footprint. |
Compared with SMBJ30A and SMCJ30A, the 5.0SMDJ30AH uniquely combines AEC-Q101 qualification, 5000 W surge capability, and DO-214AB packaging-making it the only option qualified for automotive power rail protection where both reliability and energy handling are critical.
Availability
5.0SMDJ30AH is available at Aetrix Electronics and suitable for automotive power systems, industrial PLC inputs, and telecom DC interface protection requiring stable component supply and full AEC-Q101 compliance.
Supply support for 5.0SMDJ30AH 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, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The 5.0SMDJ30AH belongs to TSC's high-power SMDJ series, engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment 12–48 V DC systems where failure tolerance and surge margin are mission-critical.
FAQ
What is the clamping voltage of the 5.0SMDJ30AH under maximum rated surge current?
The 5.0SMDJ30AH has a maximum clamping voltage (VC) of 48.4 V at 103 A peak pulse current (10/1000 µs waveform). This value is measured per JEDEC standards and guarantees that protected downstream components experience no more than 48.4 V during full-rated surge events. The 5.0SMDJ30AH maintains this clamping performance across its full operating temperature range.
Is the 5.0SMDJ30AH suitable for automotive applications?
Yes, the 5.0SMDJ30AH is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body control modules, and infotainment power supplies. Its –55 °C to +175 °C junction temperature range, moisture sensitivity level 1 rating, and validated reliability under temperature cycling and humidity testing confirm its suitability for under-hood and cabin environments.
What package type does the 5.0SMDJ30AH use, and is it compatible with standard SMT processes?
The 5.0SMDJ30AH uses the DO-214AB (SMC) package - a standardized surface-mount outline measuring 7.11 mm × 6.22 mm with 2.39 mm height. Its matte tin-plated leads meet J-STD-002 solderability requirements and support reflow profiles used in high-volume automated assembly. The 5.0SMDJ30AH is fully compatible with standard SMT pick-and-place and reflow processes.
How does the 5.0SMDJ30AH compare to the 5.0SMDJ33AH in terms of voltage ratings?
The 5.0SMDJ30AH has a 30 V working standoff voltage (VWM) and 33.3–36.8 V breakdown range (VBR), whereas the 5.0SMDJ33AH specifies 33 V VWM and 36.7–40.6 V VBR. Both share identical 5000 W peak power, 48.4 V and 53.3 V clamping voltages respectively, and DO-214AB packaging. Select 5.0SMDJ30AH when protecting 30 V nominal systems; choose 5.0SMDJ33AH for 33 V rails or tighter VBR tolerance needs.
What is the maximum leakage current of the 5.0SMDJ30AH at its rated working voltage?
The 5.0SMDJ30AH exhibits a maximum blocking leakage current (IIB) of 2 µA at its rated working standoff voltage of 30 V, measured at 25 °C. This low leakage ensures minimal power loss in always-on circuits and preserves signal integrity in high-impedance sensing paths. The 5.0SMDJ30AH maintains leakage below 5 µA across its full –55 °C to +125 °C operating ambient range.
5.0SMDJ30AH 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ30AH FAQ
1.How can I place an order for 5.0SMDJ30AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ30AH 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 5.0SMDJ30AH reliable?
The price and inventory of 5.0SMDJ30AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ30AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ30AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ30AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ30AH?
5.0SMDJ30AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ30AH 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 5.0SMDJ30AH?
For technical support, including 5.0SMDJ30AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ30AH requirements.
6.How does Aetrix verify that 5.0SMDJ30AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ30AH 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 5.0SMDJ30AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ30AH?
All 5.0SMDJ30AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ30AH, 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 5.0SMDJ30AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ30AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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