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Taiwan Semiconductor Corporation 5.0SMDJ43AH
- Part No.:
- 5.0SMDJ43AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ43AH.pdf
- Description:
- TVS DIODE 43VWM 69.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,693
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Product details
Overview
5.0SMDJ43AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 5000W peak pulse power at 10/1000μs, 43V working standoff voltage, and clamps to 69.4V at 72.1A peak current. It serves as primary overvoltage protection on DC power rails in automotive I/O interfaces and industrial power supplies.
For engineers reviewing the 5.0SMDJ43AH datasheet, 5.0SMDJ43AH pinout, 5.0SMDJ43AH application, or 5.0SMDJ43AH equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, junction temperature derating above 25°C, unidirectional polarity marking, and compatibility with automated SMT placement per J-STD-002 solderability requirements.
Technical Context
The 5.0SMDJ43AH uses a stacked-die construction to achieve high surge capability in a compact SMC outline. Its photo-glass passivated junction ensures stable breakdown behavior and low leakage (<2µA at 43V), while its <1.0ps response time enables effective suppression of fast ESD and lightning-induced transients.
Thermal performance is defined by RθJL = 16°C/W and RθJA = 61°C/W when mounted on a 16mm × 16mm copper pad. The device operates across –55°C to +175°C junction temperature range and meets AEC-Q101 stress testing for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 43 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for normal circuit operation. |
| VBR @ IT=1mA | 47.8–52.8 V - Measured breakdown voltage range at 1mA test current; defines onset of avalanche clamping. |
| VC @ IPP=72.1A | 69.4 V - Clamped voltage during 10/1000μs surge; must remain below protected device's absolute maximum rating. |
| PPPSM | 5000 W - Peak pulse power handling at 10/1000μs waveform; determines survivability against IEC 61000-4-5 Level 4 surges. |
| IIB @ VWM | <2 µA - Reverse leakage at working voltage; critical for low-power standby circuits and battery-backed systems. |
| TJ Range | –55°C to +175°C - Full operational junction temperature range; supports under-hood automotive and industrial environments. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Body dimensions: 7.11 × 6.22 × 2.34 mm (L × W × H). Matte tin-plated leads meet J-STD-002 solderability; moisture sensitivity level (MSL) = 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path); not used in standard TVS protection configuration. |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 43V rail); cathode band identifies this terminal visually and on PCB silkscreen. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC-Q101 Rev D. |
| Photo-glass passivated junction | Ensures consistent VBR tolerance and long-term stability under thermal stress and humidity exposure. |
| Fast response time <1.0 ps | Enables clamping before transient energy couples into downstream ICs-critical for protecting high-speed interface receivers. |
| Stacked-die architecture | Delivers 5000W surge rating in DO-214AB footprint without requiring parallel devices or larger packages. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
Use Scenario: Protecting 48V battery-fed control modules against load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, clamping surges exceeding 43V before reaching PMIC or microcontroller. Use Value: Withstands 5000W pulses and operates up to +175°C junction temperature-enabling direct placement near engine bay power distribution units. | Use Scenario: Safeguarding programmable logic controller (PLC) 24V DC inputs against induced surges from relay switching and motor drives. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side power entry, coordinated with upstream fuse and downstream filtering. Use Value: 69.4V clamping voltage provides ≥15% margin below typical 80V-rated industrial ICs, reducing risk of latch-up or gate oxide damage. |
| Telecom Interface Protection | Renewable Energy Inverter DC Link |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from ESD and cable discharge events in outdoor base stations. IC Role / Device Role / Timing Role: Localized TVS on signal line pairs and auxiliary power lines, leveraging sub-ns response to suppress fast transients. Use Value: Low 2µA leakage at 43V prevents signal integrity degradation on high-impedance differential buses. | Use Scenario: Transient suppression on photovoltaic string combiner box DC outputs feeding inverters. IC Role / Device Role / Timing Role: Secondary surge protection stage after MOV-based primary clamping, absorbing residual high-frequency energy. Use Value: Stacked-die design sustains repeated 5000W surges without parameter drift-critical for unattended solar farm deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A | Lower peak power rating (600W), same DO-214AA package, 69.4V clamping at 8.7A. | Suitable only for low-energy transients (e.g., IEC 61000-4-2 ESD), not IEC 61000-4-5 surges. | Select 5.0SMDJ43AH when 5000W surge immunity is required; SMBJ43A is cost-effective for board-level ESD-only protection. |
| SMCJ43A | Same 5000W rating and DO-214AB package, but VWM = 43V, VC = 69.4V, and IPP = 72.1A-identical electrical specs. | No functional difference; SMCJ43A is industry-standard designation; 5.0SMDJ43AH is Taiwan Semiconductor's branded variant. | 5.0SMDJ43AH and SMCJ43A are electrically and mechanically interchangeable; choose based on supply chain availability and qualification status. |
Compared with SMBJ43A, the 5.0SMDJ43AH delivers 8.3× higher surge power handling-essential for automotive load dump and industrial surge immunity. Against SMCJ43A, it offers identical protection performance but with AEC-Q101 validation and halogen-free compliance confirmed in TSC documentation.
Availability
5.0SMDJ43AH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial DC input conditioning, and telecom interface safeguarding requiring stable component supply and full AEC-Q101 traceability.
Supply support for 5.0SMDJ43AH 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 belongs to TSC's high-power TVS diode product line, engineered specifically for robust, high-reliability transient suppression in harsh-environment applications where AEC-Q101 qualification and 175°C operation are mandatory.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ43AH under a 10/1000μs surge?
The 5.0SMDJ43AH clamps to a maximum of 69.4 V when subjected to a 72.1 A peak pulse current with a 10/1000μs waveform. This value is guaranteed across temperature and lifetime per the datasheet's electrical specifications table and is measured at TA = 25°C with specified test conditions. Designers must verify that this clamping voltage remains safely below the absolute maximum ratings of downstream components in the 5.0SMDJ43AH-protected circuit.
Is the 5.0SMDJ43AH suitable for automotive applications?
Yes, the 5.0SMDJ43AH is AEC-Q101 qualified and rated for junction temperatures up to +175°C, making it suitable for under-hood and powertrain-related automotive applications. Its stacked-die construction, photo-glass passivation, and MSL1 moisture rating align with automotive manufacturing and reliability requirements. The 5.0SMDJ43AH is explicitly validated for load dump and ISO 7637-2 transient suppression in vehicle electrical systems.
What does the marking code '5PFT' indicate on the 5.0SMDJ43AH device body?
The marking code '5PFT' on the 5.0SMDJ43AH identifies the specific voltage variant within the 5.0SMDJxxAH family and confirms it as the 43V working standoff version. Per TSC's ordering information, '5PFT' corresponds exclusively to 5.0SMDJ43AH and appears alongside green compound (G) and date/factory codes on the DO-214AB package body. This marking enables traceability and visual verification during SMT inspection and field failure analysis.
How does the thermal resistance of the 5.0SMDJ43AH affect its surge capability at elevated ambient temperatures?
The 5.0SMDJ43AH has RθJA = 61°C/W and RθJL = 16°C/W when mounted on a 16mm × 16mm copper pad. At ambient temperatures above 25°C, its 5000W peak pulse rating must be derated per Figure 2 in the datasheet-e.g., at 75°C ambient, usable surge power drops to ~3700W. Proper PCB copper area and thermal vias are essential to maintain safe junction temperature during repetitive surges in the 5.0SMDJ43AH application.
Can the 5.0SMDJ43AH be used in bidirectional configurations?
No, the 5.0SMDJ43AH is a unidirectional TVS diode and is not rated for bidirectional operation. Its electrical specifications-including VBR, VC, and IPP-are defined only for reverse-bias clamping. For AC line or bidirectional signal protection, a dedicated bidirectional part such as 5.0SMDJ43CA must be selected. Using the 5.0SMDJ43AH in bidirectional mode risks premature failure due to forward conduction beyond its 5V VF rating at 100A.
5.0SMDJ43AH 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):
- 43V
- Voltage - Breakdown (Min):
- 47.8V
- Voltage - Clamping (Max) @ Ipp:
- 69.4V
- Current - Peak Pulse (10/1000µs):
- 72.1A
- 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)
5.0SMDJ43AH FAQ
1.How can I place an order for 5.0SMDJ43AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ43AH 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 5.0SMDJ43AH reliable?
The price and inventory of 5.0SMDJ43AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ43AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ43AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ43AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ43AH?
5.0SMDJ43AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ43AH 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 5.0SMDJ43AH?
For technical support, including 5.0SMDJ43AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ43AH requirements.
6.How does Aetrix verify that 5.0SMDJ43AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ43AH 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 5.0SMDJ43AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ43AH?
All 5.0SMDJ43AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ43AH, 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 5.0SMDJ43AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ43AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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