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Taiwan Semiconductor Corporation 5.0SMDJ75AH
- Part No.:
- 5.0SMDJ75AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ75AH.pdf
- Description:
- 5000W, 87.7V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,715
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Product details
Overview
5.0SMDJ75AH 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, 75V working standoff voltage, and 121V maximum clamping voltage at 41.4A peak current. It features AEC-Q101 qualification, <1.0ps response time, and is used for I/O interface and AC/DC power supply surge protection.
For engineers reviewing the 5.0SMDJ75AH datasheet, 5.0SMDJ75AH pinout, 5.0SMDJ75AH application, or 5.0SMDJ75AH equivalent, key selection criteria include clamping voltage (VC = 121V @ IPP = 41.4A), breakdown voltage range (83.3–92.1V), thermal resistance (RθJA = 61°C/W), unidirectional polarity, and automotive-grade reliability per AEC-Q101.
Technical Context
The 5.0SMDJ75AH employs a stacked-die construction to achieve high peak pulse power handling while maintaining low clamping ratio. Its glass-passivated junction ensures stable breakdown behavior and long-term reliability under repetitive surge stress.
Designed for unidirectional operation, it blocks up to 75V DC in reverse bias and conducts only during overvoltage transients, with fast turn-on (<1.0ps) enabling effective suppression of ESD and lightning-induced surges in automotive and industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 83.3 V / 92.1 V - Verified breakdown occurs within this range at 1 mA test current |
| VC @ IPP | 121 V @ 41.4 A - Clamped voltage during 10/1000μs surge, defining worst-case downstream voltage stress |
| PPPM | 5000 W - Peak pulse power capability determines survivability against IEC 61000-4-5 Level 4 surges |
| TJ max | 175 °C - Maximum junction temperature supports operation in under-hood automotive environments |
| RθJA | 61 °C/W - Thermal resistance on 16 mm × 16 mm Cu pad; informs heatsinking requirements for sustained power dissipation |
| IIB @ VWM | 2 µA - Low leakage ensures minimal standby power loss in high-impedance sensing or battery-backed circuits |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Weight: 0.300 g. Moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to system ground or low-side return path in unidirectional TVS placement |
| Cathode | Current exit during reverse-biased clamping | Connected to protected line (e.g., 12V rail or signal line); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control units and body modules |
| 5000W peak pulse power (10/1000μs) | Withstands IEC 61000-4-5 combination wave surges up to ±4 kV without degradation |
| Clamping ratio VC/VBR ≈ 1.30 | Low ratio ensures tight voltage limiting-critical for protecting 75V-rated downstream ICs |
| Fast response time <1.0 ps | Enables suppression of nanosecond-scale ESD events before sensitive circuitry reacts |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
Applications
| Automotive Power Rail Protection | Industrial AC/DC Power Input |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 75V. Use Value: Limits peak voltage to 121V during 41.4A transients, preventing damage to 80V-rated DC-DC converters and microcontrollers. | Use Scenario: Surge suppression on primary-side rectified output of industrial switch-mode power supplies. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing line-to-ground surges induced by switching noise or lightning coupling. Use Value: Withstands 5000W pulses without failure, ensuring compliance with IEC 61000-4-5 Level 4 immunity testing. |
| Telecom Interface Protection | Motor Drive Control Signal Lines |
Use Scenario: Safeguarding RS-485 transceivers connected to outdoor cabling exposed to induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable protection not applicable; this unidirectional device used where common-mode reference is fixed (e.g., grounded shield). Use Value: Low leakage (2 µA) avoids signal integrity issues on high-impedance differential bus lines. | Use Scenario: Protecting gate drivers and feedback sensors in 48V BLDC motor controllers from commutation spikes. IC Role / Device Role / Timing Role: Clamping transient overshoot on low-voltage control rails referenced to power ground. Use Value: 175°C max junction temperature enables reliable operation near heat-generating MOSFETs and inverter stages. |
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 rating (600W vs. 5000W); same DO-214AA package but smaller thermal mass | Not suitable for load dump or high-energy IEC 61000-4-5 testing; limited to low-energy ESD zones | Select 5.0SMDJ75AH when >1000W surge handling is required; SMBJ75A only for cost-sensitive, low-risk interfaces |
| SMCJ75A | Same DO-214AB (SMC) package and 5000W rating, but VBR min = 83.3V (identical), VC = 121V (identical), and AEC-Q101 not explicitly stated in standard datasheet | May lack full automotive qualification documentation; requires validation for automotive OEM programs | 5.0SMDJ75AH is preferred for AEC-Q101–mandated designs; SMCJ75A acceptable where qualification evidence is independently verified |
Compared with SMBJ75A and SMCJ75A, the 5.0SMDJ75AH delivers identical clamping performance and package compatibility but provides documented AEC-Q101 qualification and tighter process control for automotive production, making it the default choice for Tier 1 supply chains requiring audit-ready compliance.
Availability
5.0SMDJ75AH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial AC/DC power input, and telecom interface protection requiring stable component supply across multi-year production cycles.
Supply support for 5.0SMDJ75AH 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, serving global automotive, industrial, and consumer markets since 1979.
The 5.0SMDJxxAH series belongs to TSC's high-power surface-mount TVS portfolio, engineered specifically for AEC-Q101–compliant transient suppression in harsh-environment automotive and industrial power systems.
FAQ
What is the breakdown voltage range for 5.0SMDJ75AH?
The 5.0SMDJ75AH has a minimum breakdown voltage (VBR) of 83.3 V and a maximum of 92.1 V at 1 mA test current, as specified in the Electrical Specifications table. This range ensures consistent clamping behavior across production lots and allows design margin for temperature drift (αVBR = 0.108 mV/°C). The 5.0SMDJ75AH maintains this specification under standard test conditions (TA = 25°C).
Is 5.0SMDJ75AH suitable for automotive applications?
Yes, the 5.0SMDJ75AH is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and surge robustness required for automotive electronic components. Its 175°C maximum junction temperature and DO-214AB package with matte tin-plated leads meet automotive assembly and reliability standards. The 5.0SMDJ75AH is routinely deployed in engine control units and body electronics.
What is the maximum clamping voltage of 5.0SMDJ75AH and at what current?
The maximum clamping voltage (VC) of the 5.0SMDJ75AH is 121 V, measured at a peak impulse current (IPP) of 41.4 A under the 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream components remain within their absolute maximum ratings. The 5.0SMDJ75AH achieves this clamping performance while sustaining 5000W peak power.
Does 5.0SMDJ75AH have polarity marking, and how is it identified?
Yes, the 5.0SMDJ75AH uses a cathode band to indicate polarity, consistent with standard diode marking conventions. The band is located on the cathode end of the DO-214AB (SMC) package body and must be oriented toward the positive side of the protected line in unidirectional configurations. This marking is visible under standard optical inspection and aligns with JESD 201 whisker testing and J-STD-002 solderability requirements. The 5.0SMDJ75AH's polarity marking ensures correct PCB placement during automated assembly.
What is the thermal resistance from junction to ambient for 5.0SMDJ75AH?
The junction-to-ambient thermal resistance (RθJA) of the 5.0SMDJ75AH is 61 °C/W when mounted on a 16 mm × 16 mm copper pad test board, per JEDEC standards. This value guides thermal design for sustained power dissipation and derating above 25°C ambient. For higher-power intermittent operation, the lower RθJC (17 °C/W) and RθJL (16 °C/W) values support heat transfer to external heatsinks or lead frames. The 5.0SMDJ75AH's thermal performance enables reliable operation in enclosed automotive enclosures.
5.0SMDJ75AH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ75AH FAQ
1.How can I place an order for 5.0SMDJ75AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ75AH 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 5.0SMDJ75AH reliable?
The price and inventory of 5.0SMDJ75AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ75AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ75AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ75AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ75AH?
5.0SMDJ75AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ75AH 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 5.0SMDJ75AH?
For technical support, including 5.0SMDJ75AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ75AH requirements.
6.How does Aetrix verify that 5.0SMDJ75AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ75AH 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 5.0SMDJ75AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ75AH?
All 5.0SMDJ75AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ75AH, 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 5.0SMDJ75AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ75AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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