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Taiwan Semiconductor Corporation 5.0SMDJ17AH
- Part No.:
- 5.0SMDJ17AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ17AH.pdf
- Description:
- 5000W, 19.9V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,667
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Product details
Overview
5.0SMDJ17AH 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 at 27.6V under 181A peak current, and operates with a 17V working standoff voltage and 18.9–20.9V breakdown range. Its DO-214AB (SMC) package supports automotive-grade reliability per AEC-Q101.
For engineers reviewing the 5.0SMDJ17AH datasheet, 5.0SMDJ17AH pinout, 5.0SMDJ17AH application, or 5.0SMDJ17AH equivalent, key selection criteria include clamping voltage (27.6V @ 181A), thermal resistance (RθJL = 16°C/W), moisture sensitivity level (MSL 1), junction temperature range (−55°C to +175°C), and unidirectional polarity indicated by cathode band.
Technical Context
The 5.0SMDJ17AH employs a stacked-die construction in a DO-214AB (SMC) package to achieve high surge robustness while maintaining fast response (<1.0ps) and low leakage (<20µA at 17V). Its unidirectional configuration enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
Thermal performance is characterized with RθJL = 16°C/W and RθJA = 61°C/W on a 16mm × 16mm copper pad PCB, supporting sustained operation up to TJ = 175°C. The device uses photo-glass passivated junction technology for stable VBR and long-term reliability under repetitive transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1mA | 18.9–20.9 V - Verified breakdown threshold ensures predictable turn-on during overvoltage events |
| VC @ IPP=181A | 27.6 V - Clamping voltage limits downstream component stress during 10/1000μs surges |
| PPPSM | 5000 W - Peak pulse power rating defines maximum transient energy absorption capability |
| RθJL | 16 °C/W - Low junction-to-lead thermal resistance enables efficient heat transfer to PCB copper |
| TJ Range | −55°C to +175°C - Full automotive temperature range support without derating |
| MSL Level | Level 1 - No floor life limitation or bake requirement prior to reflow soldering |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads comply with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input / Surge return path | Connected to system ground or low-side reference in unidirectional TVS placement |
| Cathode | Protected line connection | Connected to the line being protected (e.g., 12V rail or I/O signal); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics use including engine control, body modules, and ADAS power domains |
| Photo-glass passivated junction | Ensures stable VBR and low leakage across temperature and lifetime, critical for safety-critical systems |
| Fast response time <1.0ps | Clamps ESD and lightning-induced transients before sensitive ICs experience damage |
| Stacked-die architecture | Enables 5000W surge handling in compact DO-214AB footprint without compromising voltage precision |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and global environmental compliance requirements for industrial and automotive production |
Applications
| Automotive Power Rail Protection | Industrial I/O Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 17V. Use Value: Limits clamping voltage to 27.6V at 181A, preventing damage to downstream PMICs and microcontrollers rated for ≤36V absolute max. | Use Scenario: Shielding RS-485/RS-232 transceivers from induced surges in factory automation cabling. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional 5.0SMDJ17AH guards positive signal swing only. Use Value: 20µA leakage at 17V avoids signal distortion on high-impedance data lines while absorbing 5kW transients. |
| AC/DC Power Supply Input Stage | Telecom DC Feeder Protection |
Use Scenario: Secondary-side DC bus protection in offline SMPS after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing differential-mode surges on +VOUT/GND rails. Use Value: 175°C max junction temperature allows operation near hot transformers and MOSFETs without thermal shutdown. | Use Scenario: Overvoltage protection on −48V telecom DC distribution feeds entering remote radio units. IC Role / Device Role / Timing Role: Cathode tied to −48V line, anode to ground-clamps negative-going transients toward zero volts. Use Value: 27.6V clamping referenced to ground ensures protected circuitry sees no more than −20.4V worst-case during surge. |
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 (Bourns) | Same DO-214AA package; 27.6V clamping, but lower PPPM = 600W | Not suitable for ISO 7637-2 Pulse 5a (load dump); limited to lower-energy I/O protection | Select 5.0SMDJ17AH when 5000W surge immunity is mandatory |
| SMCJ17A (Littelfuse) | DO-214AB package, identical 27.6V clamping and 5000W rating, but AEC-Q101 not certified | Acceptable for industrial use; excluded from automotive qualification programs requiring AEC-Q101 evidence | Choose 5.0SMDJ17AH where automotive qualification and traceable test reports are contractually required |
Compared with SMBJ17A and SMCJ17A, the 5.0SMDJ17AH uniquely combines AEC-Q101 certification, 5000W surge rating, and DO-214AB mechanical compatibility-enabling drop-in replacement in automotive designs where qualification and power handling are jointly mandated.
Availability
5.0SMDJ17AH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial I/O interface hardening, and AC/DC power supply input stage surge suppression requiring stable component supply and full AEC-Q101 compliance.
Supply support for 5.0SMDJ17AH 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 automotive, industrial, and consumer markets since 1979.
The 5.0SMDJxxAH series was developed specifically for high-reliability DC surge protection in automotive and industrial environments, emphasizing AEC-Q101 qualification, tight VBR tolerance, and robust thermal performance in standard SMC packages.
FAQ
What is the clamping voltage of the 5.0SMDJ17AH under maximum surge current?
The 5.0SMDJ17AH has a maximum clamping voltage (VC) of 27.6 V at 181 A peak impulse current (IPP) under the 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that protected circuitry will not experience voltages exceeding 27.6 V during specified surge events. The 5.0SMDJ17AH maintains this clamping performance across its full operating temperature range.
Is the 5.0SMDJ17AH suitable for automotive applications?
Yes, the 5.0SMDJ17AH is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body electronics, and ADAS power domains. Its −55°C to +175°C junction temperature range, MSL Level 1 rating, and photo-glass passivated junction meet stringent automotive reliability requirements. The 5.0SMDJ17AH documentation includes full AEC-Q101 test reports per TSC's qualification protocol.
What does the marking code '5PEU' indicate on the 5.0SMDJ17AH package?
The marking code '5PEU' on the 5.0SMDJ17AH identifies it as the 17 V variant within the 5.0SMDJxxAH family and confirms unidirectional polarity. '5P' denotes the 5.0 kW series, 'E' indicates the voltage grade (17 V), and 'U' specifies unidirectional configuration. This marking is laser-etched on the DO-214AB body and aligns with TSC's standardized coding scheme defined in the official datasheet revision A2102.
How does the thermal performance of the 5.0SMDJ17AH compare to similar TVS diodes in DO-214AB?
The 5.0SMDJ17AH achieves RθJL = 16°C/W and RθJA = 61°C/W on a 16 mm × 16 mm copper pad PCB-matching or exceeding industry benchmarks for DO-214AB TVS devices. This thermal efficiency enables higher sustained power dissipation and improved reliability in thermally constrained layouts. The 5.0SMDJ17AH's stacked-die design contributes directly to its low junction-to-lead resistance.
Can the 5.0SMDJ17AH be used in bidirectional configurations?
No, the 5.0SMDJ17AH is strictly unidirectional and must be oriented with the cathode band toward the protected line. It does not conduct in reverse bias below VBR and cannot suppress negative-going transients on grounded lines. For bidirectional protection, a separate device such as the 5.0SMDJ17CA (center-tapped, bidirectional variant) is required. The 5.0SMDJ17AH datasheet explicitly specifies unidirectional operation only.
5.0SMDJ17AH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ17AH FAQ
1.How can I place an order for 5.0SMDJ17AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ17AH 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 5.0SMDJ17AH reliable?
The price and inventory of 5.0SMDJ17AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ17AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ17AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ17AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ17AH?
5.0SMDJ17AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ17AH 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 5.0SMDJ17AH?
For technical support, including 5.0SMDJ17AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ17AH requirements.
6.How does Aetrix verify that 5.0SMDJ17AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ17AH 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 5.0SMDJ17AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ17AH?
All 5.0SMDJ17AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ17AH, 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 5.0SMDJ17AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ17AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5.0SMDJ17AH Tags
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