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Taiwan Semiconductor Corporation 5.0SMDJ33AH
- Part No.:
- 5.0SMDJ33AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ33AH.pdf
- Description:
- TVS DIODE 33VWM 53.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,929
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Product details
Overview
5.0SMDJ33AH 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 53.3V at 93.9A, and features a 33V working standoff voltage with <2µA leakage. It is AEC-Q101 qualified and used in automotive power supply rail protection.
For engineers reviewing the 5.0SMDJ33AH datasheet, 5.0SMDJ33AH pinout, 5.0SMDJ33AH application, or 5.0SMDJ33AH equivalent, key selection criteria include its DO-214AB (SMC) package, unidirectional polarity, 175°C max junction temperature, fast sub-1ps response, and UL 94V-0 molded case - all critical for robust automotive and industrial surge immunity design.
Technical Context
The 5.0SMDJ33AH employs a stacked-die construction in a single DO-214AB package to achieve high peak pulse power (5000W) while maintaining low clamping voltage (53.3V @ 93.9A) and tight breakdown tolerance (36.7–40.6V @ 1mA). Its unidirectional configuration enables integration into DC-biased circuits without reverse conduction concerns.
Thermal performance is optimized for PCB mounting: junction-to-lead resistance is 16°C/W, and steady-state power dissipation reaches 6.25W at TL = 75°C on a 16mm × 16mm copper pad. The device operates across –55°C to +175°C and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - Maximum continuous DC operating voltage before clamping initiates |
| VBR min/max | 36.7 V / 40.6 V @ 1 mA - Tight breakdown window ensures predictable turn-on under surge |
| VC @ IPP | 53.3 V @ 93.9 A - Clamping voltage limits downstream component stress during 10/1000μs transients |
| PPPM | 5000 W - Peak pulse power handling capability per standard 10/1000μs waveform |
| TJ max | +175 °C - Enables reliable operation in under-hood automotive environments |
| RθJL | 16 °C/W - Low thermal resistance supports sustained power dissipation when soldered to large copper pads |
| αVBR | 0.104 mV/°C - Temperature coefficient of breakdown voltage informs derating in wide-temperature designs |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional, cathode indicated by band. Matte tin-plated leads, RoHS and halogen-free compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path / low-side reference | Connected to system ground or negative rail; conducts during positive transients |
| Cathode | Protected line input | Connected to the line being protected (e.g., 33V supply rail); blocks reverse current in normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Photo glass passivated junction | Enhances long-term stability and reduces parameter drift under humidity and bias stress |
| Sub-1 ps response time | Clamps ESD and lightning-induced transients before sensitive ICs experience overvoltage damage |
| Stacked-die architecture | Enables 5000W pulse rating in compact DO-214AB footprint without sacrificing clamping performance |
| J-STD-020 Level 1 MSL | Zero bake requirement prior to reflow; supports standard SMT assembly without moisture-related popcorning |
Applications
| Automotive Power Rail Protection | Industrial DC Input Surge Suppression |
|---|---|
Use Scenario: Protecting 33V battery-fed control modules (e.g., body ECUs, lighting drivers) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 33V rail and chassis ground to clamp surges above 53.3V. Use Value: Prevents latch-up or destruction of downstream PMICs and microcontrollers during 12V/24V/33V system transients. | Use Scenario: Safeguarding programmable logic controller (PLC) analog input modules powered from 33V isolated supplies. IC Role / Device Role / Timing Role: Primary surge shunt on field-side 33V supply line, upstream of LDOs and signal conditioners. Use Value: Maintains functional safety integrity by limiting transient energy entering measurement circuitry per IEC 61000-4-5 Level 4. |
| Telecom DC Feeder Protection | Renewable Energy Charge Controller Interface |
Use Scenario: Guarding remote radio unit (RRU) power inputs fed via 33V PoE++ or hybrid fiber-copper links. IC Role / Device Role / Timing Role: First-line transient suppressor on DC input before DC/DC converters and baseband processors. Use Value: Absorbs induced surges from nearby lightning strikes while preserving low-leakage operation (<2 µA) during standby. | Use Scenario: Protecting solar charge controller MOSFET gate drivers and sense amplifiers connected to 33V battery banks. IC Role / Device Role / Timing Role: Bidirectional-capable protection element (used unidirectionally) on battery-side 33V bus. Use Value: Withstands repeated 5000W surges from PV array switching transients without degradation, verified per AEC-Q101. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A | Lower peak power (600W), higher clamping (60.5V @ 8.3A), same DO-214AA package | Not suitable for ISO 7637-2 or IEC 61000-4-5 Level 4; limited to low-energy ESD | Select 5.0SMDJ33AH where 5000W surge immunity is required; SMBJ33A only fits space-constrained, low-power designs. |
| SMCJ33A | Same DO-214AB package and 5000W rating, but wider VBR range (36.7–42.8V) and higher VC (55.5V @ 90.1A) | Acceptable for non-automotive industrial use; lacks AEC-Q101 qualification | Choose 5.0SMDJ33AH for automotive qualification and tighter parametric control; SMCJ33A may be used if AEC-Q101 is not mandated. |
Compared with SMBJ33A and SMCJ33A, the 5.0SMDJ33AH provides superior parametric consistency (tighter VBR and lower VC), guaranteed AEC-Q101 compliance, and optimized thermal performance for high-reliability 33V rail protection - making it the preferred choice for automotive and mission-critical industrial deployments.
Availability
5.0SMDJ33AH is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom power systems requiring stable component supply, AEC-Q101 qualification, and high-energy transient immunity.
Supply support for 5.0SMDJ33AH 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, TVS diodes, rectifiers, and MOSFETs for automotive and industrial markets.
The 5.0SMDJ33AH belongs to TSC's high-power SMDJ series, engineered specifically for AEC-Q101-compliant, high-energy transient suppression in 12V–100V automotive and industrial DC systems.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ33AH under a 10/1000μs surge?
The 5.0SMDJ33AH has a maximum clamping voltage (VC) of 53.3 V when subjected to its rated peak pulse current of 93.9 A under the standard 10/1000μs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components remain within safe operating voltage margins.
Is the 5.0SMDJ33AH suitable for automotive applications?
Yes, the 5.0SMDJ33AH is AEC-Q101 qualified and explicitly designed for automotive use. It meets rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock, and is rated for operation from –55°C to +175°C - making it appropriate for engine control units, body electronics, and ADAS power rails where reliability under harsh conditions is mandatory.
What package type does the 5.0SMDJ33AH use, and what are its mounting requirements?
The 5.0SMDJ33AH uses the DO-214AB (SMC) surface-mount package. For optimal thermal performance and power handling, it must be mounted on a PCB with a minimum 16 mm × 16 mm copper pad per lead. This layout achieves the specified RθJL of 16°C/W and supports its 6.25 W steady-state power dissipation at TL = 75°C.
How does the 5.0SMDJ33AH differ from the 5.0SMDJ33A variant?
The 5.0SMDJ33AH is the AEC-Q101 qualified version, whereas the 5.0SMDJ33A is the commercial-grade variant. The "H" suffix denotes automotive qualification, including extended temperature validation, enhanced process controls, and full AEC-Q101 test reporting. Electrically, both share identical VWM (33 V), VBR (36.7–40.6 V), and VC (53.3 V), but only the 5.0SMDJ33AH carries the automotive certification required for OEM production.
What is the polarity configuration of the 5.0SMDJ33AH, and how is it identified on the device?
The 5.0SMDJ33AH is a unidirectional TVS diode, meaning it conducts only during positive transients relative to its cathode. Polarity is marked by a visible cathode band on the device body - the banded end is the cathode and must be connected toward the protected line (e.g., 33V rail), while the anode connects to ground or the return path.
5.0SMDJ33AH 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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 93.9A
- 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)
5.0SMDJ33AH FAQ
1.How can I place an order for 5.0SMDJ33AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ33AH 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 5.0SMDJ33AH reliable?
The price and inventory of 5.0SMDJ33AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ33AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ33AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ33AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ33AH?
5.0SMDJ33AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ33AH 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 5.0SMDJ33AH?
For technical support, including 5.0SMDJ33AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ33AH requirements.
6.How does Aetrix verify that 5.0SMDJ33AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ33AH 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 5.0SMDJ33AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ33AH?
All 5.0SMDJ33AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ33AH, 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 5.0SMDJ33AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ33AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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