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Taiwan Semiconductor Corporation 5.0SMDJ24AH
- Part No.:
- 5.0SMDJ24AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ24AH.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
5.0SMDJ24AH 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 38.9V at 129A, and features a 24V working standoff voltage with <2µA leakage. It is AEC-Q101 qualified and used in automotive power supply inputs.
For engineers reviewing the 5.0SMDJ24AH datasheet, 5.0SMDJ24AH pinout, 5.0SMDJ24AH application, or 5.0SMDJ24AH equivalent, key selection criteria include clamping voltage (38.9V), peak pulse current (129A), unidirectional polarity, DO-214AB package compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The 5.0SMDJ24AH employs a photo-glass passivated silicon junction optimized for fast transient response (<1.0ps) and stable breakdown behavior across temperature. Its stacked-die construction enables high peak power handling while maintaining tight VBR tolerance (26.7–29.5V at 1mA) and low thermal resistance (RθJL = 16°C/W).
Designed for automated SMT placement, it uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD201 Class 2 whisker resistance. The cathode band indicates polarity, and its DO-214AB (SMC) package supports PCB-level thermal management via 16mm × 16mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1mA | 26.7–29.5 V - Verified breakdown range ensures reliable turn-on margin above VWM |
| VC @ IPP=129A | 38.9 V - Clamping voltage limits downstream circuit stress during 10/1000μs surges |
| PPPPM | 5000 W - Peak pulse power rating defines maximum single-event surge energy absorption |
| IIB @ VWM | <2 µA - Ultra-low leakage preserves efficiency in always-on 24V systems |
| TJ Range | −55°C to +175°C - Extended junction temperature supports under-hood automotive deployment |
| αVBR | 0.101 mV/°C - Low temperature coefficient stabilizes clamping performance over thermal cycling |
Pinout & Package
Package: DO-214AB (SMC) - Standardized surface-mount outline with cathode band marking, 16mm × 16mm Cu pad thermal interface, and UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground in unidirectional TVS configuration | Provides low-impedance path to ground during reverse-transient events when cathode is biased above anode |
| Cathode | Marked terminal (band); connects to protected line (e.g., 24V rail) | Defines unidirectional polarity - only conducts when cathode voltage exceeds anode by ≥VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| Photo-glass passivated junction | Enhances long-term reliability and stability of VBR under humidity and thermal cycling |
| Stacked-die architecture | Enables 5000W pulse power in DO-214AB footprint without derating due to internal thermal coupling |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, supporting standard SMT assembly flow |
| Halogen-free (IEC 61249-2-21) | Complies with environmental regulations for automotive and industrial end equipment |
Applications
| Automotive Power Input Protection | Industrial DC Power Rail Clamp |
|---|---|
Use Scenario: Protecting 24V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between 24V rail and chassis ground. Use Value: Clamps 38.9V at 129A to keep downstream regulators and microcontrollers within safe operating area. | Use Scenario: Safeguarding programmable logic controller (PLC) 24V DC inputs from field-wiring induced surges. IC Role / Device Role / Timing Role: Primary surge suppression element on backplane power distribution nodes. Use Value: Absorbs 5000W transients without degradation, enabling >100,000 surge cycles per MIL-STD-883H Method 3015.8. |
| Telecom Interface Surge Guard | Motor Drive Control Signal Clamp |
Use Scenario: Shielding RS-485 transceiver power pins in outdoor base station cabinets exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), directly at IC power input. Use Value: Sub-1ps response time prevents voltage overshoot from propagating into sensitive PHY circuitry. | Use Scenario: Suppressing commutation spikes on gate driver supply rails in BLDC motor inverters. IC Role / Device Role / Timing Role: Local clamping device mounted adjacent to half-bridge driver ICs. Use Value: Limits VCC rail excursions to ≤38.9V, preventing latch-up in high-side bootstrap circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Lower peak power (600W), same DO-214AA package, VC = 38.9V at 12.5A | Not suitable for ISO 7637-2 Pulse 5a (load dump); limited to lower-energy surges | Select only for cost-sensitive non-automotive 24V systems with verified <1kW surge exposure |
| SMCJ24A | Same DO-214AB package, 1500W rating, VC = 38.9V at 38.9A | Lacks AEC-Q101 qualification; not validated for automotive temperature cycling or humidity testing | Acceptable for industrial 24V supplies where automotive qualification is not mandated |
Compared with SMBJ24A and SMCJ24A, the 5.0SMDJ24AH uniquely combines 5000W surge capacity, AEC-Q101 qualification, and DO-214AB packaging-making it the only option among the three validated for automotive load dump protection without external parallel staging.
Availability
5.0SMDJ24AH is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial PLC 24V rails, and telecom interface surge protection requiring stable component supply and full traceability.
Supply support for 5.0SMDJ24AH 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 automotive, industrial, and consumer markets since 1979.
The 5.0SMDJxxAH series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability DC power line protection in harsh environments where sustained surge immunity and long-term parametric stability are critical.
FAQ
What is the clamping voltage of the 5.0SMDJ24AH under maximum rated surge current?
The 5.0SMDJ24AH clamps to 38.9 V when subjected to its maximum peak pulse current of 129 A under the standardized 10/1000 μs waveform. This value is measured and guaranteed per the datasheet's electrical specifications table and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is the 5.0SMDJ24AH suitable for automotive applications?
Yes, the 5.0SMDJ24AH is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units and body electronics. Its −55°C to +175°C junction temperature range, moisture sensitivity level 1, and validation against mechanical and thermal stress tests meet automotive reliability requirements.
What package type does the 5.0SMDJ24AH use, and what are its mounting requirements?
The 5.0SMDJ24AH uses the DO-214AB (SMC) surface-mount package. For optimal thermal performance, it must be mounted on a 16 mm × 16 mm copper pad per the datasheet's thermal test board specification. Matte tin-plated leads ensure compatibility with standard J-STD-002 reflow processes.
How does the 5.0SMDJ24AH differ from the 5.0SMDJ24A variant?
The "H" suffix in 5.0SMDJ24AH denotes halogen-free construction per IEC 61249-2-21, whereas the non-H version may contain halogenated flame retardants. Both share identical electrical parameters, AEC-Q101 qualification, and DO-214AB packaging - the distinction is purely environmental compliance.
What is the maximum leakage current of the 5.0SMDJ24AH at its working voltage?
At its 24 V working standoff voltage (VWM), the 5.0SMDJ24AH exhibits a maximum blocking leakage current of 2 µA at 25°C. This ultra-low leakage minimizes standby power loss and avoids false triggering in always-on 24V systems such as automotive telematics modules.
5.0SMDJ24AH 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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 129A
- 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)
5.0SMDJ24AH FAQ
1.How can I place an order for 5.0SMDJ24AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ24AH 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 5.0SMDJ24AH reliable?
The price and inventory of 5.0SMDJ24AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ24AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ24AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ24AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ24AH?
5.0SMDJ24AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ24AH 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 5.0SMDJ24AH?
For technical support, including 5.0SMDJ24AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ24AH requirements.
6.How does Aetrix verify that 5.0SMDJ24AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ24AH 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 5.0SMDJ24AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ24AH?
All 5.0SMDJ24AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ24AH, 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 5.0SMDJ24AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ24AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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