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Taiwan Semiconductor Corporation 5.0SMDJ70AH
- Part No.:
- 5.0SMDJ70AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ70AH.pdf
- Description:
- 5000W, 81.9V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,038
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Product details
Overview
5.0SMDJ70AH 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, 70V working standoff voltage, and clamps to 113V at 44.3A peak current. It serves as primary overvoltage protection on DC power rails and I/O lines in automotive and industrial power supplies.
For engineers reviewing the 5.0SMDJ70AH datasheet, 5.0SMDJ70AH pinout, 5.0SMDJ70AH application, or 5.0SMDJ70AH equivalent, key selection criteria include its AEC-Q101 qualification, <1.0ps response time, 175°C max junction temperature, and DO-214AB mechanical compatibility with automated SMT assembly.
Technical Context
This unidirectional TVS diode uses a stacked-die construction to achieve high surge robustness while maintaining tight VBR tolerance (77.8–86.0V at 1mA). Its glass-passivated junction ensures stable leakage (<2µA at 70V) and long-term reliability under repeated transients.
Thermal performance is defined for PCB mounting on a 16mm × 16mm copper pad: RθJA = 61°C/W, RθJC = 17°C/W, enabling sustained operation up to 175°C junction temperature with appropriate board layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR @ IT=1mA | 77.8–86.0 V - Verified breakdown threshold ensuring predictable turn-on during surges |
| VC @ IPP=44.3A | 113 V - Clamped voltage during 10/1000μs surge, limiting downstream stress |
| PPPSM | 5000 W - Peak pulse power handling per standard waveform, critical for ISO 7637-2/IEC 61000-4-5 compliance |
| IIB @ VWM | <2 µA - Low leakage preserves efficiency in always-on power rail protection |
| TJ max | 175 °C - Enables use in under-hood automotive and high-ambient industrial environments |
| Response time | <1.0 ps - Sub-nanosecond switching prevents transient propagation to sensitive circuitry |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line (e.g., +12V rail); must be routed with low-inductance path to ground reference |
| Cathode | Current exit point during reverse-biased clamping | Connected to system ground; requires low-impedance return path to handle 44.3A surge current |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Stacked die construction | Enables 5000W surge rating in compact DO-214AB footprint without derating |
| Photo glass passivated junction | Prevents moisture ingress and surface contamination, ensuring stable VBR over lifetime |
| Moisture sensitivity level 1 | No bake required prior to reflow; compatible with standard SMT assembly processes |
| Halogen-free (IEC 61249-2-21) | Meets environmental compliance requirements for RoHS and green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial AC/DC Power Supply Input |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary unidirectional clamping device placed directly across input terminals. Use Value: Limits voltage to ≤113V during 5000W surges, preventing damage to downstream DC-DC converters and microcontrollers. | Use Scenario: Safeguarding rectified DC bus in DIN-rail mounted industrial PSUs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on bulk capacitor input stage. Use Value: Absorbs 10/1000μs surges up to 44.3A while maintaining <2µA leakage at 70V standby. |
| Telecom Equipment I/O Protection | Motor Drive Control Board Inputs |
Use Scenario: Shielding RS-485/RS-232 interface lines from ESD and induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Point-of-entry TVS on signal lines referenced to local ground plane. Use Value: Responds in <1.0ps to clamp fast transients before they reach isolated transceivers. | Use Scenario: Guarding analog sensor inputs and enable signals on servo drive control boards subject to inductive kickback. IC Role / Device Role / Timing Role: Localized clamping element adjacent to connector pins. Use Value: Maintains 70V working standoff while clamping 113V peaks, preserving signal integrity of ±10V analog inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70A | Lower peak power (600W), same DO-214AA package, VC = 113V @ 25.5A | Suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD), not ISO 7637-2 load dump | Select when surge energy is ≤600W and space constraints favor smaller SMB package |
| 5.0SMDJ70A | Same electrical specs but non-AEC-Q101 qualified; identical DO-214AB package and marking code 5PGP | Lacks automotive qualification; acceptable for industrial/commercial use where AEC-Q101 is not mandated | Choose for cost-sensitive non-automotive designs requiring identical clamping behavior |
Compared with SMBJ70A and 5.0SMDJ70A, the 5.0SMDJ70AH provides AEC-Q101 validation and 5000W surge capability-critical for automotive load dump immunity-while sharing the same 70V standoff and 113V clamping voltage, making it the only option qualified for under-hood deployment.
Availability
5.0SMDJ70AH is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 5.0SMDJ70AH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers, with global distribution and AEC-Q101 qualification capabilities.
The 5.0SMDJxxAH series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing rugged packaging, precise clamping, and process-controlled parametric consistency.
FAQ
What is the maximum clamping voltage of the 5.0SMDJ70AH under a 10/1000μs surge?
The 5.0SMDJ70AH clamps to a maximum of 113 V when subjected to a 44.3 A peak impulse current with a 10/1000μs waveform. This value is measured per standard test conditions (TA = 25°C) and defines the upper voltage limit imposed on protected circuits during surge events. The 5.0SMDJ70AH maintains this clamping performance across its specified junction temperature range.
Is the 5.0SMDJ70AH suitable for automotive applications?
Yes, the 5.0SMDJ70AH is AEC-Q101 qualified and designed for automotive use, including engine control units, body electronics, and infotainment systems exposed to load dump and jump-start transients. Its 175°C maximum junction temperature, stacked-die construction, and glass-passivated junction meet stringent automotive reliability requirements-making the 5.0SMDJ70AH appropriate for under-hood deployment.
What is the marking code for the 5.0SMDJ70AH?
The 5.0SMDJ70AH is marked with the code "5PGP" on the device body. This 4-character alphanumeric code identifies the specific voltage variant within the 5.0SMDJxxAH family and is visible on the cathode-band side of the DO-214AB (SMC) package. The marking is laser-etched and conforms to industry readability standards for automated optical inspection.
How does the thermal performance of the 5.0SMDJ70AH compare to similar TVS diodes?
The 5.0SMDJ70AH has a junction-to-ambient thermal resistance (RθJA) of 61°C/W when mounted on a 16mm × 16mm copper pad, and RθJC = 17°C/W. These values are optimized for high-power dissipation in constrained layouts. Compared to standard SMBJ devices, the 5.0SMDJ70AH's larger DO-214AB footprint enables better heat spreading-critical for sustaining 5000W pulses without thermal runaway.
Does the 5.0SMDJ70AH have halogen-free and RoHS-compliant construction?
Yes, the 5.0SMDJ70AH uses halogen-free molding compound per IEC 61249-2-21 and is fully RoHS compliant. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the entire construction-including die attach and encapsulation-excludes restricted substances per EU Directive 2011/65/EU. This ensures compatibility with lead-free reflow processes and green manufacturing mandates.
5.0SMDJ70AH 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):
- 70V
- Voltage - Breakdown (Min):
- 77.8V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 44.3A
- 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)
5.0SMDJ70AH FAQ
1.How can I place an order for 5.0SMDJ70AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ70AH 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 5.0SMDJ70AH reliable?
The price and inventory of 5.0SMDJ70AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ70AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ70AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ70AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ70AH?
5.0SMDJ70AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ70AH 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 5.0SMDJ70AH?
For technical support, including 5.0SMDJ70AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ70AH requirements.
6.How does Aetrix verify that 5.0SMDJ70AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ70AH 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 5.0SMDJ70AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ70AH?
All 5.0SMDJ70AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ70AH, 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 5.0SMDJ70AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ70AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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