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Taiwan Semiconductor Corporation 5.0SMDJ17A
- Part No.:
- 5.0SMDJ17A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ17A.pdf
- Description:
- 5000W, 19.9V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,748
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Product details
Overview
5.0SMDJ17A from Taiwan Semiconductor is a unidirectional 5000W surface-mount transient voltage suppressor (TVS) diode with a 17V working standoff voltage, 18.9–20.9V breakdown voltage at 1mA, and 27.6V clamping voltage at 181A peak pulse current. It features sub-1ps response time, DO-214AB (SMC) package, and is designed for I/O interface and AC/DC power supply surge protection.
For engineers reviewing the 5.0SMDJ17A datasheet, 5.0SMDJ17A pinout, 5.0SMDJ17A application, or 5.0SMDJ17A equivalent, key selection criteria include clamping voltage (27.6V @ 181A), thermal resistance (RθJL = 16°C/W), moisture sensitivity level (MSL 1), and unidirectional polarity indicated by cathode band - all critical for high-reliability surge suppression in industrial power interfaces.
Technical Context
The 5.0SMDJ17A employs a photo-glass passivated silicon junction for stable avalanche performance and low leakage (<20µA at 17V). Its stacked-die construction enables 5000W peak pulse power handling under 10/1000µs waveform while maintaining tight VBR tolerance (±5.5%) and low temperature coefficient (0.097mV/°C).
Designed for automated SMT placement, it meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements. The DO-214AB package provides robust thermal dissipation (RθJA = 61°C/W on 16mm×16mm Cu pad) and supports steady-state power dissipation of 6.25W at TL = 75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1mA | 18.9–20.9 V - Verified avalanche breakdown range ensuring predictable turn-on threshold |
| VC @ IPP=181A | 27.6 V - Clamped voltage during 5000W transient, limiting downstream circuit stress |
| PPPPM | 5000 W - Peak pulse power rating per 10/1000µs waveform, defining surge energy capacity |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance enabling efficient heat transfer to PCB copper |
| MSL Level | Level 1 - No floor life limitation; safe for standard reflow without baking |
| TJ Range | −55°C to +175°C - Extended junction temperature operation for harsh-environment deployment |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line side (e.g., DC input rail); not used in normal TVS operation |
| Cathode | Current exit terminal during reverse avalanche clamping | Connected to ground reference; polarity band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Peak pulse power | 5000W at 10/1000µs - Enables protection against IEC 61000-4-5 Level 4 surges (4kV/2Ω) |
| Clamping ratio (VC/VBR) | ~1.38 - Low overvoltage margin ensures minimal stress on downstream ICs like USB PHYs or AC-DC controllers |
| Response time | <1.0 ps - Faster than most ESD events, providing effective pre-clamp suppression |
| Leakage current | ≤20 µA @ 17V - Negligible standby power loss in always-on power rails |
| Thermal robustness | RθJL = 16°C/W - Supports sustained surge duty cycles when mounted on adequate copper area |
Applications
| Industrial AC/DC Power Input | USB 2.0/3.0 Port Protection |
|---|---|
Use Scenario: Surge protection on 24VAC/DC input stage of PLC power supplies exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between line and earth ground to clamp 5000W transients within 27.6V. Use Value: Prevents damage to rectifier bridges and primary-side controllers by limiting peak voltage below 30V during 10/1000µs surges. | Use Scenario: ESD and surge protection on USB VBUS and D+/D− lines in embedded host devices. IC Role / Device Role / Timing Role: Standoff-rated TVS array component (single-diode per line) with <20µA leakage preserving signal integrity. Use Value: Maintains USB eye diagram compliance while suppressing ±15kV contact ESD (IEC 61000-4-2) and 1kV ring wave surges. |
| Telecom Line Interface | Motor Drive Control Board |
Use Scenario: Protection of RS-485 transceivers connected to outdoor field wiring subject to induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (used in back-to-back pair) across differential bus lines. Use Value: Limits common-mode transients to <30V, preventing latch-up or destruction of isolated transceivers like SN65HVD7x. | Use Scenario: DC bus overvoltage suppression in 24–48V BLDC motor drives during regenerative braking spikes. IC Role / Device Role / Timing Role: Clamp device across H-bridge supply rail and ground to absorb inductive kickback energy. Use Value: Absorbs up to 5000W transient energy without degradation, extending MOSFET lifetime in high-cycle industrial motion systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A | Lower peak power (600W), same DO-214AA package, higher VC (27.7V), MSL 1 | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surges | Select 5.0SMDJ17A where 5000W surge immunity is required; SMBJ17A only for cost-sensitive, low-risk environments |
| SMCJ17A | Same 5000W rating and DO-214AB package, but VC = 27.7V and VBR = 18.9–20.9V - functionally identical clamping behavior | Direct functional match; differs only in manufacturer branding and minor process variation | SMCJ17A is a second-source alternative with identical electrical specs and mechanical footprint - verified drop-in replacement |
Compared with SMBJ17A and SMCJ17A, the 5.0SMDJ17A delivers equal clamping performance and package compatibility as SMCJ17A but offers superior surge margin over SMBJ17A, making it optimal for industrial-grade AC/DC front-end protection where 5000W capability is non-negotiable.
Availability
5.0SMDJ17A is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, USB interface protection, and motor drive control boards requiring stable component supply and full IEC 61000-4-5 compliance.
Supply support for 5.0SMDJ17A 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 industrial, automotive, and consumer markets since 1979.
The 5.0SMDJxxA series belongs to TSC's high-power TVS diode product line, engineered specifically for robust, surface-mount surge protection in mains-connected equipment and harsh electromagnetic environments.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ17A under rated surge conditions?
The 5.0SMDJ17A has a maximum clamping voltage (VC) of 27.6 V at 181 A peak pulse current (IPP), measured under the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuits during a 5000W transient event and is confirmed in the Electrical Specifications table of the official TSC datasheet (Version D2102).
Is the 5.0SMDJ17A unidirectional or bidirectional, and how is polarity identified?
5.0SMDJ17A is a unidirectional TVS diode. Polarity is marked by a distinct cathode band on the DO-214AB (SMC) package body - the banded end corresponds to the cathode terminal, which must be connected toward the system ground reference. This configuration ensures proper clamping during reverse-biased transients while blocking forward current.
Does the 5.0SMDJ17A meet lead-free and RoHS requirements?
Yes, the 5.0SMDJ17A is RoHS compliant and halogen-free per IEC 61249-2-21. Its matte tin-plated leads are solderable per J-STD-002, and the molding compound meets UL 94V-0 flammability rating. Moisture sensitivity level is rated MSL 1, eliminating bake requirements prior to reflow.
What is the thermal resistance from junction to ambient for the 5.0SMDJ17A?
The junction-to-ambient thermal resistance (RθJA) of the 5.0SMDJ17A is 61°C/W when mounted on a standard 16 mm × 16 mm copper pad test board. This value assumes natural convection cooling and is critical for estimating temperature rise during repetitive surge events or elevated ambient conditions.
Can the 5.0SMDJ17A be used in place of the 5.0SMDJ16A or 5.0SMDJ18A?
Yes - the 5.0SMDJ17A is part of a tightly binned family where adjacent variants differ only in VWM and VBR ranges. Substituting 5.0SMDJ17A for 5.0SMDJ16A or 5.0SMDJ18A is acceptable if the system's working voltage falls within 17V ± tolerance and clamping margin remains sufficient; however, verify layout clearance and VC headroom for the specific application.
5.0SMDJ17A 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 181A
- 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)
5.0SMDJ17A FAQ
1.How can I place an order for 5.0SMDJ17A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ17A 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 5.0SMDJ17A reliable?
The price and inventory of 5.0SMDJ17A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ17A is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ17A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ17A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ17A?
5.0SMDJ17A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ17A 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 5.0SMDJ17A?
For technical support, including 5.0SMDJ17A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ17A requirements.
6.How does Aetrix verify that 5.0SMDJ17A is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ17A 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 5.0SMDJ17A meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ17A?
All 5.0SMDJ17A units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ17A, 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 5.0SMDJ17A part is unused and in its original packaging.
Return procedure for 5.0SMDJ17A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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