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Taiwan Semiconductor Corporation 5.0SMDJ85AH
- Part No.:
- 5.0SMDJ85AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ85AH.pdf
- Description:
- 5000W, 99.2V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,785
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
5.0SMDJ85AH 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 137V at 36.5A, and features a working standoff voltage of 85V with <2µA leakage. It is AEC-Q101 qualified and used in automotive body control modules requiring robust ESD and lightning surge immunity.
For engineers reviewing the 5.0SMDJ85AH datasheet, 5.0SMDJ85AH pinout, 5.0SMDJ85AH application, or 5.0SMDJ85AH equivalent, key selection criteria include clamping voltage (VC = 137V), breakdown voltage range (94.4–104V), thermal resistance (RθJA = 61°C/W), unidirectional polarity, and DO-214AB (SMC) package compatibility with automated SMT assembly.
Technical Context
The 5.0SMDJ85AH employs a stacked-die construction in a single DO-214AB package to achieve high peak pulse power handling while maintaining low clamping ratio. Its photo-glass passivated junction ensures stable VBR over temperature and long-term reliability under repetitive surge stress.
With a fast response time <1.0ps and junction temperature range of –55°C to +175°C, the device supports operation in harsh environments. Its 0.096 mV/°C VBR temperature coefficient and 16°C/W junction-to-lead thermal resistance enable predictable performance in thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 94.4 V / 104 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold tolerance |
| VC @ IPP | 137 V - Clamped voltage at 36.5 A peak impulse current; determines protected circuit's maximum transient exposure |
| PPPM | 5000 W - Peak pulse power dissipation capability at 10/1000 μs waveform; enables IEC 61000-4-5 Level 4 compliance |
| RθJA | 61 °C/W - Junction-to-ambient thermal resistance on 16 mm × 16 mm Cu pad; guides heatsinking and layout derating |
| IIB @ VWM | <2 µA - Reverse leakage at rated standoff voltage; ensures minimal standby power loss in battery-powered systems |
| αVBR | 0.110 mV/°C - Temperature coefficient of breakdown voltage; supports stable clamping across automotive temperature range |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to lower-potential side of protected line; forms return path during surge clamp |
| Cathode | Current exit during reverse-biased clamping | Connected to higher-potential rail (e.g., VBUS); carries full surge current to ground reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| Photo-glass passivated junction | Ensures stable electrical parameters and long-term stability under humidity and bias stress |
| Stacked-die architecture | Enables 5000W pulse rating in compact DO-214AB footprint without compromising clamping performance |
| Fast response time <1.0 ps | Protects downstream ICs before transient energy couples into sensitive logic or analog circuits |
Applications
| Automotive Body Control Module | Industrial PLC I/O Port |
|---|---|
Use Scenario: Protecting LIN bus and sensor supply lines from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND near connector entry point. Use Value: Clamps 137 V at 36.5 A to keep MCU supply rails within safe operating area during 12 V system surges. | Use Scenario: Safeguarding 24 V digital input channels against field-wiring induced transients. IC Role / Device Role / Timing Role: Primary surge suppression element on backplane-side interface traces. Use Value: Limits voltage excursion to ≤137 V for <100 ns, preventing latch-up in optocoupler input stages. |
| AC/DC Power Supply Input | Telecom Remote Power Feeds |
Use Scenario: Secondary-side DC bus protection in offline SMPS after bridge rectification. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor terminals. Use Value: Absorbs 5000 W surge energy without degradation, maintaining output regulation during lightning-induced spikes. | Use Scenario: Overvoltage protection on 48 V PoE-powered remote units. IC Role / Device Role / Timing Role: Standoff-rated clamping device on PSE-facing DC feed line. Use Value: Withstands repeated 10/1000 μs surges up to 36.5 A while holding leakage below 2 µA at 85 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85A | Lower peak power (600 W), same DO-214AA package, VBR 94.4–104 V, VC = 137 V | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surges | Select 5.0SMDJ85AH when 5000 W pulse rating is required; SMBJ85A fits space-constrained designs needing only 600 W |
| SMCJ85A | Same DO-214AB package and 5000 W rating, but VBR 94.4–104 V and VC = 137 V match exactly; RoHS/halogen-free status varies by batch | Identical clamping behavior and thermal profile; differs only in manufacturer-specific process controls | 5.0SMDJ85AH offers guaranteed AEC-Q101 qualification and tighter αVBR (0.110 vs. typical 0.115 mV/°C) |
Compared with SMBJ85A and SMCJ85A, the 5.0SMDJ85AH provides automotive-grade reliability assurance and superior thermal stability-critical for under-hood electronics where junction temperature can exceed 150°C during sustained operation.
Availability
5.0SMDJ85AH is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and AC/DC power supply input stages requiring stable component supply and full AEC-Q101 compliance.
Supply support for 5.0SMDJ85AH 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 validation capabilities.
The 5.0SMDJxxAH series was developed specifically for high-reliability automotive and industrial surge protection, emphasizing high pulse power density, tight parameter distribution, and extended temperature operation.
FAQ
What is the clamping voltage of the 5.0SMDJ85AH at its rated peak pulse current?
The 5.0SMDJ85AH has a maximum clamping voltage (VC) of 137 V at 36.5 A peak impulse current (IPP), measured under the standard 10/1000 μs waveform. This value ensures protected circuits remain within safe voltage limits during surge events. The 5.0SMDJ85AH achieves this clamping performance while maintaining low leakage and high reliability across its full operating temperature range.
Is the 5.0SMDJ85AH suitable for automotive applications?
Yes, the 5.0SMDJ85AH is AEC-Q101 qualified and designed for automotive use, including body control modules, infotainment power supplies, and sensor interfaces. Its –55°C to +175°C junction temperature range, stacked-die construction, and photo-glass passivation ensure robustness against thermal cycling and humidity. The 5.0SMDJ85AH meets stringent automotive reliability requirements without derating in most under-hood environments.
What package does the 5.0SMDJ85AH use, and is it compatible with standard SMT processes?
The 5.0SMDJ85AH uses the DO-214AB (SMC) surface-mount package with matte tin-plated leads compliant with J-STD-002 solderability standards. It is fully compatible with automated pick-and-place and reflow soldering processes. The 5.0SMDJ85AH's moisture sensitivity level is 1 (per J-STD-020), eliminating bake requirements prior to assembly.
How does the 5.0SMDJ85AH compare to the 5.0SMDJ85A variant?
The 5.0SMDJ85AH is the AEC-Q101 qualified version of the 5.0SMDJ85A, with identical electrical specifications (VWM = 85 V, VC = 137 V, PPPM = 5000 W) but enhanced reliability testing and tighter parameter controls. The "H" suffix denotes automotive qualification. The 5.0SMDJ85AH undergoes additional stress tests including HTGB, H3TRB, and temperature cycling-making it the only version approved for safety-critical automotive subsystems.
What is the maximum junction temperature rating for the 5.0SMDJ85AH?
The 5.0SMDJ85AH has a maximum junction temperature (TJ MAX) rating of +175°C, enabling operation in high-temperature environments such as engine compartments or enclosed industrial enclosures. Its RθJA of 61°C/W and RθJC of 17°C/W allow effective thermal management when mounted on standard 16 mm × 16 mm copper pads. This TJ MAX rating is maintained across the full specified storage temperature range of –55°C to +175°C.
5.0SMDJ85AH 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):
- 85V
- Voltage - Breakdown (Min):
- 94.4V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 36.5A
- 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)
5.0SMDJ85AH FAQ
1.How can I place an order for 5.0SMDJ85AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ85AH 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 5.0SMDJ85AH reliable?
The price and inventory of 5.0SMDJ85AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ85AH is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ85AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ85AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ85AH?
5.0SMDJ85AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ85AH 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 5.0SMDJ85AH?
For technical support, including 5.0SMDJ85AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ85AH requirements.
6.How does Aetrix verify that 5.0SMDJ85AH is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ85AH 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 5.0SMDJ85AH meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ85AH?
All 5.0SMDJ85AH units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ85AH, 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 5.0SMDJ85AH part is unused and in its original packaging.
Return procedure for 5.0SMDJ85AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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