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Taiwan Semiconductor Corporation 5.0SMDJ26A
- Part No.:
- 5.0SMDJ26A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ26A.pdf
- Description:
- 5000W, 30.4V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,608
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Product details
Overview
5.0SMDJ26A 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 delivers 5000W peak pulse power at 10/1000μs, clamps transients to 42.1V at 119A, and features a 26V working standoff voltage with <2µA leakage at VWM. It is used in AC/DC power supplies to protect downstream regulators and controllers from lightning-induced surges.
For engineers reviewing the 5.0SMDJ26A datasheet, 5.0SMDJ26A pinout, 5.0SMDJ26A application, or 5.0SMDJ26A equivalent, key selection criteria include its 28.9–31.9V breakdown range, DO-214AB (SMC) package thermal performance (RθJA = 61°C/W), unidirectional polarity marking, and JESD201 Class 2 whisker resistance - all critical for industrial power rail hardening.
Technical Context
The 5.0SMDJ26A employs a stacked-die construction in a DO-214AB (SMC) package to achieve 5000W peak pulse power handling while maintaining fast response (<1.0ps) and low clamping ratio (VC/VBR ≈ 1.32). Its unidirectional configuration provides forward conduction capability (VF = 5V @ 100A) and reverse blocking up to 26V.
Thermally, it supports junction temperatures from –55°C to +175°C, with RθJL = 16°C/W and RθJC = 17°C/W when mounted on a 16mm × 16mm copper pad PCB - enabling reliable operation under repetitive surge stress in compact power designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before clamping begins; sets safe DC bias margin for 24V systems. |
| VBR min/max | 28.9 V / 31.9 V - Breakdown occurs within this range at 1 mA test current; defines minimum surge threshold activation level. |
| VC @ IPP | 42.1 V - Clamped voltage at 119 A peak pulse current; determines maximum stress imposed on protected ICs. |
| PPPPM | 5000 W - Peak pulse power rating per 10/1000 µs waveform; quantifies single-event surge energy absorption capacity. |
| IIB @ VWM | <2 µA - Reverse leakage at rated standoff voltage; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +175 °C - Maximum junction temperature; enables use in high-ambient environments like enclosed power supplies or automotive under-hood locations. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode-indicated by molded band. Matte tin-plated leads, RoHS-compliant, halogen-free, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-side return | Connects to system ground or low-voltage rail; conducts during positive transients when device is forward-biased. |
| Cathode | Protected line input / high-side connection | Connects to the line being protected (e.g., +24V rail); blocks reverse current until breakdown voltage is exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| 5000W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges without derating in standard PCB layouts. |
| Clamping voltage ≤42.1V | Ensures protected 3.3V/5V/12V logic and power ICs remain below absolute maximum ratings during 119A transients. |
| Fast response time <1.0ps | Prevents voltage overshoot before clamping engages - critical for safeguarding high-speed interface ICs and microcontrollers. |
| DO-214AB (SMC) package | Supports automated SMT placement and delivers superior thermal dissipation vs. smaller packages (e.g., SMA), with RθJA = 61°C/W. |
Applications
| AC/DC Power Supply Input Protection | I/O Interface Surge Suppression |
|---|---|
Use Scenario: Installed across primary-side DC bus (e.g., after bridge rectifier, before bulk capacitor) in industrial switch-mode power supplies. IC Role / Device Role / Timing Role: Unidirectional TVS diode acting as crowbar clamp during line-to-ground surges (e.g., lightning-induced ring waves). Use Value: Limits transient voltage to ≤42.1V, preventing overvoltage failure of downstream PWM controllers, optocouplers, and gate drivers. | Use Scenario: Placed on RS-485, CAN, or Ethernet PHY data lines exposed to ESD and induced surges in factory automation equipment. IC Role / Device Role / Timing Role: Standoff protector that remains non-conductive during normal signaling but clamps fast-rising transients to safe levels. Use Value: Maintains signal integrity with <2µA leakage at 26V while absorbing 5000W pulses - preserving data rate and reducing bit error rates. |
| Motor Drive DC Bus Clamp | Telecom Line Card Protection |
Use Scenario: Mounted across DC link capacitors in 24V/48V BLDC motor drives to absorb regenerative spikes and inductive kickback. IC Role / Device Role / Timing Role: High-power unidirectional clamp suppressing repetitive switching transients and load dump events. Use Value: Withstands 175°C junction temperature and 119A peak current, extending reliability in thermally constrained motor control enclosures. | Use Scenario: Integrated into POTS or xDSL line interface cards to meet GR-1089-CORE telecom surge immunity requirements. IC Role / Device Role / Timing Role: Primary-level surge arrestor on tip/ring lines, coordinated with secondary GDT or MOV stages. Use Value: Provides precise 26V standoff and low clamping ratio (VC/VBR ≈ 1.32), enabling tighter coordination margins and reduced follow-on current stress. |
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, 26V VWM, 42.1V VC @ 14.3A | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy ESD and EFT events. | Select SMBJ26A only for space-constrained, low-surge-risk applications where 5000W headroom is unnecessary. |
| 5.0SMDJ26CA | Bi-directional variant; identical VWM, VBR, and VC, but symmetric clamping for AC-coupled or floating lines. | Required for differential or AC signal paths (e.g., audio, analog sensors); unsuitable for DC-biased unidirectional rails. | Choose 5.0SMDJ26CA when protecting balanced lines or circuits without defined ground reference - otherwise, 5.0SMDJ26A offers lower leakage and better forward conduction. |
Compared with SMBJ26A and 5.0SMDJ26CA, the 5.0SMDJ26A uniquely balances high 5000W surge capacity, unidirectional low-leakage operation, and DO-214AB thermal robustness - making it optimal for DC power rail protection where energy absorption and thermal margin are prioritized over bidirectional symmetry or ultra-small footprint.
Availability
5.0SMDJ26A is available at Aetrix Electronics and suitable for AC/DC power supply input protection, motor drive DC bus clamping, and telecom line card surge suppression requiring stable component supply and long-term industrial lifecycle support.
Supply support for 5.0SMDJ26A 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, including TVS diodes, rectifiers, and MOSFETs, with ISO/TS 16949 and IATF 16949 certification.
The 5.0SMDJ26A belongs to TSC's high-power SMDJ series, engineered specifically for industrial-grade surge immunity in harsh environments - emphasizing rugged packaging, repeatable clamping, and extended thermal endurance.
FAQ
What is the breakdown voltage range for the 5.0SMDJ26A?
The 5.0SMDJ26A has a guaranteed breakdown voltage (VBR) range of 28.9 V to 31.9 V at 1 mA test current, measured per JEDEC standards. This range ensures consistent surge initiation across production lots and allows design margining for worst-case activation thresholds in 24V systems. The 5.0SMDJ26A maintains this specification across its full operating temperature range (–55°C to +175°C).
Does the 5.0SMDJ26A support automated SMT assembly?
Yes, the 5.0SMDJ26A uses the DO-214AB (SMC) package with matte tin-plated leads compliant with J-STD-002 solderability requirements. Its standardized footprint, moisture sensitivity level 1 (per J-STD-020), and glass-passivated junction make it fully compatible with high-volume reflow and wave soldering processes - eliminating pre-baking and supporting direct placement in automated lines.
What is the maximum clamping voltage of the 5.0SMDJ26A under surge conditions?
The 5.0SMDJ26A clamps to a maximum of 42.1 V at its rated peak pulse current of 119 A (10/1000 µs waveform). This value is guaranteed across all units and represents the highest voltage seen by downstream components during worst-case surge events - a critical parameter for ensuring compatibility with 3.3V, 5V, and 12V IC absolute maximum ratings.
How does the 5.0SMDJ26A handle thermal stress during repeated surges?
The 5.0SMDJ26A is rated for a maximum junction temperature of +175°C and exhibits RθJA = 61°C/W and RθJL = 16°C/W when mounted on a 16 mm × 16 mm copper pad. These thermal metrics enable effective heat dissipation during repetitive surge events, allowing the 5.0SMDJ26A to sustain multiple 5000W pulses without thermal runaway - provided PCB layout follows recommended pad dimensions and copper weight.
Is the 5.0SMDJ26A RoHS-compliant and halogen-free?
Yes, the 5.0SMDJ26A meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. Its molding compound is UL 94V-0 rated, and terminals pass JESD201 Class 2 whisker testing - confirming suitability for environmentally regulated industrial, telecom, and consumer applications where material compliance is mandatory.
5.0SMDJ26A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ26A FAQ
1.How can I place an order for 5.0SMDJ26A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ26A 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 5.0SMDJ26A reliable?
The price and inventory of 5.0SMDJ26A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ26A is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ26A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ26A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ26A?
5.0SMDJ26A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ26A 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 5.0SMDJ26A?
For technical support, including 5.0SMDJ26A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ26A requirements.
6.How does Aetrix verify that 5.0SMDJ26A is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ26A 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 5.0SMDJ26A meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ26A?
All 5.0SMDJ26A units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ26A, 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 5.0SMDJ26A part is unused and in its original packaging.
Return procedure for 5.0SMDJ26A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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