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Taiwan Semiconductor Corporation 5.0SMDJ26AH
- Part No.:
- 5.0SMDJ26AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ26AH.pdf
- Description:
- TVS DIODE 26VWM 42.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
5.0SMDJ26AH 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, 26V working standoff voltage, and clamps to 42.1V at 119A peak current. It delivers fast response (<1.0ps), AEC-Q101 qualification, and operates across –55°C to +175°C junction temperature for automotive I/O protection.
For engineers reviewing the 5.0SMDJ26AH datasheet, 5.0SMDJ26AH pinout, 5.0SMDJ26AH application, or 5.0SMDJ26AH equivalent, key selection criteria include clamping voltage (VC = 42.1V @ IPP = 119A), breakdown voltage range (28.9–31.9V), thermal resistance (RθJL = 16°C/W), moisture sensitivity level (MSL 1), and unidirectional configuration with cathode band polarity marking.
Technical Context
The 5.0SMDJ26AH employs a stacked-die construction optimized for high-energy transient suppression in compact SMC packages. Its photo-glass passivated junction ensures stable leakage performance (IIB ≤ 2µA @ VWM = 26V) and robust ESD/EMI immunity under repetitive surge stress.
Designed for unidirectional operation only, it features a forward voltage of 5V @ 100A and integrates JESD201 Class 2 whisker-resistant matte tin plating. Thermal performance is characterized on a 16mm × 16mm copper PCB pad, delivering RθJA = 61°C/W and RθJC = 17°C/W for predictable board-level thermal design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 28.9 V / 31.9 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold tolerance |
| VC @ IPP | 42.1 V @ 119 A - Clamped voltage during 10/1000μs surge, directly limiting downstream IC stress |
| PPPM | 5000 W - Peak pulse power handling capability per standard 10/1000μs waveform |
| TJ max | +175 °C - Maximum junction temperature enabling under-hood automotive deployment |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance critical for solder-joint reliability in high-power transients |
| MSL | Level 1 - No floor-life limitation or bake requirement prior to reflow assembly |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band indicating terminal polarity. Weight: 0.300 g. Molding compound meets UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to protected circuit ground or low-side return path during surge conduction |
| Cathode | Current exit point in forward bias; marked by band | Connected to protected line (e.g., CAN_H, USB_VBUS); defines clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements |
| Photo-glass passivated junction | Ensures stable leakage current (<2 µA) and long-term parameter stability under humidity and bias stress |
| Fast response time <1.0 ps | Clamps transients before propagation into sensitive interface receivers (e.g., LIN, CAN, USB) |
| Stacked-die construction | Enables 5000W surge rating in DO-214AB footprint without compromising voltage precision or thermal impedance |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated production |
Applications
| Automotive CAN Bus Protection | Industrial AC/DC Power Input |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines in vehicle ECUs against ISO 7637-2 pulse 1, 2a, and 5a surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp induced transients. Use Value: Clamping at 42.1V ensures CAN transceivers (e.g., TJA1042) remain within absolute maximum ratings during 100V/500ms load dump events. | Use Scenario: Safeguarding rectified DC bus inputs of industrial SMPS against lightning-induced surges on AC mains. IC Role / Device Role / Timing Role: Primary-line TVS connected across bulk capacitor input to absorb differential-mode energy. Use Value: 5000W peak power rating handles 6kV/3kA surge waveforms per IEC 61000-4-5 Level 4 without degradation. |
| USB Type-C Port ESD Protection | Motor Drive Gate Driver Interface |
Use Scenario: Secondary-level ESD protection on VBUS and CC lines of automotive infotainment USB-C ports. IC Role / Device Role / Timing Role: Unidirectional TVS placed after primary common-mode choke to suppress contact discharge per IEC 61000-4-2 ±15kV. Use Value: Sub-1ps response captures fast ESD events before they couple into USB PD controllers (e.g., FUSB302), while 26V VWM avoids interference with 20V PD negotiation. | Use Scenario: Protecting isolated gate driver inputs (e.g., Si823x) from Miller-induced transients in 48V BLDC inverters. IC Role / Device Role / Timing Role: Low-capacitance TVS tied between IN+ and GND to suppress coupling spikes during high dV/dt switching. Use Value: 42.1V clamping prevents false triggering of driver enable logic while maintaining <2µA leakage at 26V standby bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A | Lower peak power (600W), same DO-214AA package, higher clamping voltage (42.8V @ 100A) | Not suitable for ISO 7637-2 Pulse 5a; limited to lower-energy I/O interfaces | Select when cost-sensitive designs require basic ESD/EMP protection without automotive surge compliance |
| SMCJ26A | Same DO-214AB package, identical 5000W rating, but wider VBR tolerance (28.9–33.1V) and higher VC (43.5V @ 119A) | Acceptable for non-AEC-Q101 industrial use; lacks automotive qualification documentation | Choose for industrial power supplies where AEC-Q101 is not mandated and minor clamping variation is acceptable |
Compared with SMBJ26A and SMCJ26A, the 5.0SMDJ26AH provides tighter VBR tolerance (±5.2%), lower clamping voltage (42.1V vs. ≥42.8V), and full AEC-Q101 validation-making it the preferred choice for automotive CAN, LIN, and body-control module surge protection where parameter consistency and qualification traceability are mandatory.
Availability
5.0SMDJ26AH is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and USB-C interface protection requiring stable component supply, AEC-Q101 compliance, and high-reliability surge immunity.
Supply support for 5.0SMDJ26AH 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 devices.
The 5.0SMDJxxAH series was developed specifically for AEC-Q101-compliant automotive transient suppression, targeting high-energy surge environments such as engine control units, ADAS sensor interfaces, and infotainment power rails.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ26AH under standard surge conditions?
The 5.0SMDJ26AH has a maximum clamping voltage (VC) of 42.1 V when subjected to a 10/1000 μs waveform peak impulse current (IPP) of 119 A. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during transient events. The 5.0SMDJ26AH maintains this clamping performance across its specified junction temperature range, supporting robust overvoltage protection in automotive and industrial systems.
Is the 5.0SMDJ26AH suitable for bidirectional signal line protection?
No, the 5.0SMDJ26AH is a unidirectional TVS diode and is not designed for bidirectional protection. Its electrical specifications-including breakdown voltage, clamping behavior, and forward voltage-are defined only for reverse-biased operation. For bidirectional applications such as RS-485 or Ethernet PHY protection, a dedicated bidirectional part like 5.0SMDJ26CA must be used. The 5.0SMDJ26AH's cathode band marking and unidirectional data sheet parameters confirm its single-polarity functionality.
Does the 5.0SMDJ26AH meet AEC-Q101 requirements for automotive use?
Yes, the 5.0SMDJ26AH is explicitly qualified to AEC-Q101 Rev D standards, covering stress tests including high-temperature operating life, temperature cycling, highly accelerated stress testing, and ESD (HBM ≥ 8 kV, CDM ≥ 1 kV). This qualification is documented in Taiwan Semiconductor's official product release and applies to the full 5.0SMDJxxAH family. The 5.0SMDJ26AH is therefore approved for use in automotive powertrain, chassis, and body electronics where component reliability under harsh environmental conditions is mandatory.
What is the thermal resistance from junction to ambient for the 5.0SMDJ26AH?
The junction-to-ambient thermal resistance (RθJA) of the 5.0SMDJ26AH is 61°C/W, measured on a standard 16 mm × 16 mm copper pad PCB per JESD51-3. This value assumes no external heat sinking and reflects worst-case natural convection cooling. For thermal design, engineers should use RθJL = 16°C/W when evaluating solder-joint temperature rise under surge conditions, as lead-to-PCB conduction dominates transient thermal transfer. The 5.0SMDJ26AH's RθJA enables operation up to +175°C junction temperature in properly laid out automotive modules.
How does the 5.0SMDJ26AH compare to the 5.0SMDJ26A in terms of marking and packaging?
The 5.0SMDJ26AH uses "5PFE" as its marking code and is supplied in DO-214AB (SMC) package with tape-and-reel packing (3,000 units per reel). The "H" suffix denotes halogen-free construction per IEC 61249-2-21, distinguishing it from the legacy 5.0SMDJ26A which lacks halogen-free certification and may carry different marking (e.g., "5PF"). Both share identical electrical specs and mechanical outline, but only the 5.0SMDJ26AH guarantees halogen-free materials and full RoHS compliance required for modern automotive and green-electronics programs.
5.0SMDJ26AH 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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 119A
- 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)
5.0SMDJ26AH FAQ
1.How can I place an order for 5.0SMDJ26AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ26AH 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 5.0SMDJ26AH reliable?
The price and inventory of 5.0SMDJ26AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ26AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ26AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ26AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ26AH?
5.0SMDJ26AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ26AH 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 5.0SMDJ26AH?
For technical support, including 5.0SMDJ26AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ26AH requirements.
6.How does Aetrix verify that 5.0SMDJ26AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ26AH 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 5.0SMDJ26AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ26AH?
All 5.0SMDJ26AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ26AH, 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 5.0SMDJ26AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ26AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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