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Taiwan Semiconductor Corporation 5.0SMDJ54A
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- Part No.:
- 5.0SMDJ54A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ54A.pdf
- Description:
- 5000W, 63.2V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,968
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Product details
Overview
5.0SMDJ54A 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 87.1V at 57.5A, and features a 54V working standoff voltage with <2µA leakage. It is used in AC/DC power supplies to protect downstream regulators and controllers from lightning-induced surges.
For engineers reviewing the 5.0SMDJ54A datasheet, 5.0SMDJ54A pinout, 5.0SMDJ54A application, or 5.0SMDJ54A equivalent, key selection criteria include clamping voltage (VC = 87.1V), breakdown voltage range (60.0–66.3V), thermal resistance (RθJA = 61°C/W), unidirectional polarity, and DO-214AB (SMC) package compatibility with automated SMT assembly.
Technical Context
The 5.0SMDJ54A employs a stacked-die construction to achieve high peak pulse power handling while maintaining low clamping ratio. Its photo-glass passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
With a fast response time of <1.0ps and junction temperature range from –55°C to +175°C, it supports operation in harsh industrial environments. The device is rated for 5000W non-repetitive peak impulse power per 10/1000μs waveform and exhibits a VBR temperature coefficient of 0.107 mV/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min / max | 60.0 V / 66.3 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPP | 87.1 V - Clamped voltage at 57.5 A peak pulse current; determines protected circuit's maximum transient exposure |
| PPPM | 5000 W - Peak pulse power handling at 10/1000μs waveform; defines surge energy absorption capability |
| RθJA | 61 °C/W - Junction-to-ambient thermal resistance on 16 mm × 16 mm PCB copper pad; guides heatsinking requirements |
| IIB @ VWM | <2 µA - Reverse leakage at working voltage; ensures minimal standby power loss in high-impedance circuits |
| αVBR | 0.107 mV/°C - Temperature coefficient of breakdown voltage; enables accurate derating over operating temperature |
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 during forward conduction or surge clamping | Connected to protected line side (e.g., input rail); conducts surge current toward cathode |
| Cathode | Current exit terminal; marked by band on package | Connected to ground or low-impedance return path; establishes clamping reference and polarity |
Key Features
| Feature | Design Value |
|---|---|
| 5000W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges without failure |
| Clamping voltage ≤87.1V | Ensures downstream 60V-rated ICs (e.g., gate drivers, PMICs) remain within safe operating area during transients |
| Response time <1.0ps | Activates before most semiconductor switching transients propagate, minimizing voltage overshoot |
| DO-214AB (SMC) package | Supports high-current routing via large copper pads; compatible with standard SMT reflow and AOI inspection |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to assembly, reducing manufacturing cost and cycle time |
Applications
| AC/DC Power Input Protection | I/O Interface Protection |
|---|---|
Use Scenario: Installed across primary-side DC bus (e.g., after bridge rectifier, before bulk capacitor) in offline SMPS. IC Role / Device Role / Timing Role: Unidirectional TVS diode providing clamping-based overvoltage suppression during lightning or load-dump events. Use Value: Limits transient voltage to ≤87.1V, protecting 100V MOSFETs and PWM controllers from destructive breakdown. | Use Scenario: Placed on RS-485, CAN, or USB VBUS lines exposed to ESD or cable discharge events. IC Role / Device Role / Timing Role: Standoff-clamp TVS absorbing fast transients while maintaining signal integrity below 2µA leakage. Use Value: Withstands ±30kV contact ESD (IEC 61000-4-2) and clamps sub-100ns spikes without latch-up or degradation. |
| Industrial Motor Drive DC Link | Telecom Power Shelf Protection |
Use Scenario: Mounted across DC link capacitors in variable-frequency drives to suppress commutation spikes and regeneration surges. IC Role / Device Role / Timing Role: High-energy unidirectional suppressor absorbing repetitive 5000W pulses without thermal runaway. Use Value: Maintains clamping performance over 1000+ surge cycles due to stacked-die thermal distribution and 175°C TJ rating. | Use Scenario: Applied at -48V telecom power shelf inputs to meet GR-1089-CORE lightning surge immunity requirements. IC Role / Device Role / Timing Role: Primary-stage TVS coordinating with upstream MOVs and downstream filters for multi-level protection. Use Value: Delivers precise 54V standoff and 87.1V clamping to preserve tight voltage margins required by telecom rectifiers and supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54A | Lower peak power (600W vs. 5000W); same DO-214AA package but smaller die | Not suitable for IEC 61000-4-5 Level 4; limited to low-energy ESD or board-level coupling | Select only when surge energy is ≤600W and space constraints prohibit DO-214AB |
| 5.0SMDJ58A | Higher VWM (58V) and VBR (64.4–71.2V); identical package, power rating, and thermal specs | Used where system nominal voltage is 56–57V (e.g., 48V telecom with 20% tolerance) | Choose 5.0SMDJ58A if design requires margin above 54V nominal rail; otherwise 5.0SMDJ54A provides optimal clamping headroom |
Compared with SMBJ54A and 5.0SMDJ58A, the 5.0SMDJ54A uniquely balances 54V system compatibility, 5000W surge capacity, and DO-214AB thermal performance-making it the preferred choice for high-reliability AC/DC and industrial DC link protection where clamping voltage must stay below 87.1V.
Availability
5.0SMDJ54A is available at Aetrix Electronics and suitable for AC/DC power supply protection, industrial motor drive DC links, and telecom power shelf designs requiring stable component supply and guaranteed surge performance.
Supply support for 5.0SMDJ54A 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 power management, protection, and signal conditioning devices.
The 5.0SMDJxxA series is part of TSC's high-power TVS portfolio, engineered specifically for industrial-grade surge immunity in mains-connected equipment and infrastructure systems where reliability under repeated high-energy transients is critical.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ54A under specified test conditions?
The 5.0SMDJ54A has a maximum clamping voltage (VC) of 87.1 V when subjected to a 57.5 A peak pulse current (IPP) using the 10/1000 μs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events. The 5.0SMDJ54A maintains this clamping performance across its full operating temperature range due to its low temperature coefficient of 0.107 mV/°C.
Is the 5.0SMDJ54A unidirectional or bidirectional, and how is polarity identified?
The 5.0SMDJ54A is a unidirectional TVS diode, intended for DC line protection where reverse voltage is blocked and surge current flows from anode to cathode. Polarity is indicated by a cathode band on the DO-214AB (SMC) package body. This marking aligns with standard diode conventions and must be oriented toward the grounded or low-impedance return path during PCB layout.
What is the thermal resistance and maximum junction temperature rating for the 5.0SMDJ54A?
The 5.0SMDJ54A has a junction-to-ambient thermal resistance (RθJA) of 61°C/W when mounted on a 16 mm × 16 mm copper pad PCB, and a maximum junction temperature (TJ MAX) of +175°C. Its junction-to-lead resistance is 16°C/W, supporting direct thermal transfer to PCB copper. These values allow the 5.0SMDJ54A to sustain repeated 5000W surges without exceeding thermal limits in properly designed layouts.
Does the 5.0SMDJ54A meet RoHS and halogen-free compliance standards?
Yes, the 5.0SMDJ54A is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and its matte tin-plated leads are solderable per J-STD-002. The device also satisfies JESD 201 Class 2 whisker resistance and carries moisture sensitivity level 1 per J-STD-020-eliminating pre-bake requirements before reflow.
How does the 5.0SMDJ54A differ from the 5.0SMDJ51A and 5.0SMDJ58A in terms of electrical parameters?
The 5.0SMDJ54A has a VWM of 54 V, VBR range of 60.0–66.3 V, and VC of 87.1 V. In comparison, the 5.0SMDJ51A offers 51 V VWM and 82.4 V VC, while the 5.0SMDJ58A provides 58 V VWM and 93.6 V VC. All three share identical 5000W PPPM, DO-214AB package, and thermal specs-making them drop-in replacements only when system voltage tolerances align with their respective standoff ratings.
5.0SMDJ54A 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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 57.5A
- 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)
5.0SMDJ54A FAQ
1.How can I place an order for 5.0SMDJ54A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ54A 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 5.0SMDJ54A reliable?
The price and inventory of 5.0SMDJ54A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ54A is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ54A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ54A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ54A?
5.0SMDJ54A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ54A 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 5.0SMDJ54A?
For technical support, including 5.0SMDJ54A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ54A requirements.
6.How does Aetrix verify that 5.0SMDJ54A is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ54A 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 5.0SMDJ54A meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ54A?
All 5.0SMDJ54A units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ54A, 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 5.0SMDJ54A part is unused and in its original packaging.
Return procedure for 5.0SMDJ54A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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