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Taiwan Semiconductor Corporation 5.0SMDJ48AH
- Part No.:
- 5.0SMDJ48AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ48AH.pdf
- Description:
- 5000W, 56.1V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,057
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Product details
Overview
5.0SMDJ48AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 5000W peak pulse power at 10/1000μs, 48V working standoff voltage, and 77.4V maximum clamping voltage at 64.7A peak current. It serves as primary overvoltage protection for DC power rails in automotive I/O interfaces and industrial AC/DC supplies.
For engineers reviewing the 5.0SMDJ48AH datasheet, 5.0SMDJ48AH pinout, 5.0SMDJ48AH application, or 5.0SMDJ48AH equivalent, key selection criteria include its AEC-Q101 qualification, <1.0ps response time, 175°C max junction temperature, DO-214AB mechanical compatibility, and verified clamping performance under standardized surge waveforms.
Technical Context
This unidirectional TVS diode uses a photo glass-passivated junction and stacked-die construction to achieve robust surge handling with low leakage (<2µA at 48V) and stable breakdown behavior across temperature. Its thermal design supports 16°C/W junction-to-lead resistance when mounted on a 16mm × 16mm copper pad, enabling reliable operation in high-temperature ambient environments up to 175°C.
The device complies with JESD201 Class 2 whisker testing and moisture sensitivity level 1 per J-STD-020, making it suitable for lead-free reflow assembly without preconditioning. Its cathode band polarity marking and matte tin-plated leads ensure consistent automated placement and solderability per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 48 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 53.3 V / 58.9 V at 1 mA - Confirmed breakdown threshold range for reliable turn-on margin |
| VC @ IPP | 77.4 V at 64.7 A - Clamped voltage during 10/1000μs surge, defining protected circuit stress limit |
| PPPM | 5000 W - Peak pulse power rating per standard 10/1000μs waveform, critical for IEC 61000-4-5 compliance |
| TJ max | 175 °C - Maximum junction temperature enabling use in under-hood automotive and industrial enclosures |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance measured on 16mm × 16mm Cu pad, guiding heatsinking requirements |
| IIB @ VWM | <2 µA - Low reverse leakage ensures minimal standby power loss in battery-backed systems |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Body dimensions: 7.11 mm × 6.22 mm × 2.34 mm (L × W × H). Matte tin-plated leads, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or return path; defines conduction direction during surge |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., +48V rail); clamps to anode when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Fast response time | <1.0 ps - Enables suppression of ESD and fast transients before downstream ICs are damaged |
| Photo glass passivation | Stable junction characteristics over lifetime, reducing parameter drift under thermal and humidity stress |
| Stacked die construction | Enables 5000W PPPM in compact DO-214AB footprint without derating due to internal thermal coupling |
| J-STD-020 Level 1 MSL | No floor life limitation - can be stored indefinitely and placed directly into reflow without baking |
Applications
| Automotive I/O Protection | Industrial AC/DC Power Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and sensor interface lines against load dump and ISO 7637-2 pulses in 12V/24V vehicle systems. IC Role / Device Role / Timing Role: Primary clamping element placed between signal line and chassis ground, absorbing energy before reaching sensitive PHY ICs. Use Value: Withstands 5000W surges while limiting clamped voltage to 77.4V, ensuring transceiver survival under SAE J1113-11 test conditions. | Use Scenario: Safeguarding rectified DC output of industrial switch-mode power supplies against lightning-induced surges and switching transients. IC Role / Device Role / Timing Role: Parallel-connected overvoltage clamp on +48V output rail, triggered only during abnormal overvoltage events. Use Value: Delivers 64.7A peak surge current handling with <2µA leakage at nominal 48V, minimizing standby loss and maintaining regulation integrity. |
| Telecom Power Feeds | Renewable Energy Controllers |
Use Scenario: Overvoltage protection on 48V phantom power feeds for remote radio units and base station equipment exposed to outdoor surge environments. IC Role / Device Role / Timing Role: Front-end TVS on DC feed line, coordinated with upstream MOVs and downstream filtering to meet ITU-T K.20/21 immunity requirements. Use Value: 77.4V clamping voltage ensures protected circuits remain below 80V absolute maximum ratings during 10/1000μs surges. | Use Scenario: DC-link protection in solar charge controllers and wind turbine converters where 48V battery banks face grid-switching transients. IC Role / Device Role / Timing Role: Unidirectional clamp across battery terminals to suppress reverse-polarity connection spikes and regenerative braking surges. Use Value: AEC-Q101 qualification and 175°C TJ rating support deployment in unventilated outdoor enclosures with wide ambient swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48A | Lower PPPM (600W vs. 5000W); same DO-214AA package but smaller thermal mass | Not suitable for IEC 61000-4-5 Level 4 or automotive load dump; limited to low-energy ESD | Select only for cost-sensitive, low-surge environments where 5000W capability is unnecessary |
| SMCJ48A | Same DO-214AB package and 5000W rating, but non-AEC-Q101; higher IIB (5µA vs. 2µA) | Lacks automotive qualification; acceptable for industrial power supplies without automotive certification needs | Choose when AEC-Q101 is not required and slightly higher leakage is tolerable |
Compared with SMBJ48A and SMCJ48A, the 5.0SMDJ48AH provides certified automotive reliability, tighter leakage control, and identical mechanical fit-making it the preferred choice for safety-critical 48V systems requiring full IEC/ISO surge compliance.
Availability
5.0SMDJ48AH is available at Aetrix Electronics and suitable for automotive I/O protection, industrial AC/DC power input, and telecom power feed applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for 5.0SMDJ48AH 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 power management, protection, and signal conditioning devices.
The 5.0SMDJxxAH series was developed specifically for high-reliability DC power rail protection in automotive and industrial systems, emphasizing AEC-Q101 qualification, high-power surge resilience, and surface-mount manufacturability.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ48AH under a 10/1000μs surge?
The 5.0SMDJ48AH has a maximum clamping voltage (VC) of 77.4 V at 64.7 A peak impulse current under the standardized 10/1000μs waveform. This value is guaranteed across temperature and represents the upper voltage limit imposed on protected circuitry during surge events, directly supporting compliance with IEC 61000-4-5 Level 4 testing.
Is the 5.0SMDJ48AH suitable for automotive applications?
Yes, the 5.0SMDJ48AH is AEC-Q101 qualified and designed for automotive use. It meets rigorous stress tests including temperature cycling, humidity bias, and mechanical shock, and its 175°C maximum junction temperature and DO-214AB package support under-hood deployment in 12V/24V/48V systems such as body control modules and ADAS power domains.
What is the working standoff voltage (VWM) and how does it relate to system design?
The 5.0SMDJ48AH has a working standoff voltage (VWM) of 48 V, meaning it remains non-conductive up to this DC or RMS voltage. Designers must ensure normal operating voltage-including ripple, tolerance, and derating-stays below 48 V to prevent premature conduction; exceeding VWM risks accelerated aging or leakage increase, compromising long-term reliability of the 5.0SMDJ48AH.
Does the 5.0SMDJ48AH require special PCB layout considerations?
Yes. To maintain its 5000W surge rating, the 5.0SMDJ48AH must be mounted on a PCB with ≥16 mm × 16 mm copper pads per terminal to achieve the specified RθJL of 16°C/W. Minimizing trace inductance between the device and protected node is critical-short, wide traces and direct grounding reduce voltage overshoot during fast transients, preserving the 5.0SMDJ48AH's sub-1ps response advantage.
How does the 5.0SMDJ48AH compare to bidirectional TVS diodes in 48V systems?
The 5.0SMDJ48AH is unidirectional and optimized for DC rail protection where polarity is fixed, offering lower leakage (<2 µA) and tighter VBR tolerance than equivalent bidirectional parts. In 48V systems with defined ground reference-such as telecom power feeds or solar controllers-the 5.0SMDJ48AH delivers superior clamping precision and thermal efficiency versus bidirectional alternatives like 5.0SMDJ48CA.
5.0SMDJ48AH 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):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 77.4V
- Current - Peak Pulse (10/1000µs):
- 64.7A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ48AH FAQ
1.How can I place an order for 5.0SMDJ48AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ48AH 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 5.0SMDJ48AH reliable?
The price and inventory of 5.0SMDJ48AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ48AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ48AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ48AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ48AH?
5.0SMDJ48AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ48AH 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 5.0SMDJ48AH?
For technical support, including 5.0SMDJ48AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ48AH requirements.
6.How does Aetrix verify that 5.0SMDJ48AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ48AH 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 5.0SMDJ48AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ48AH?
All 5.0SMDJ48AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ48AH, 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 5.0SMDJ48AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ48AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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