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Vishay General Semiconductor - Diodes Division 1.5SMC480AHE3_A/H
- Part No.:
- 1.5SMC480AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC480AHE3_A/H.pdf
- Description:
- TVS DIODE 408VWM 658VC SMC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
1.5SMC480AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for high-energy surge protection. It features a 480 V standoff voltage (VWM), 504 V minimum breakdown voltage (VBR), 658 V maximum clamping voltage (VC) at 2.28 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect power rails and interface lines in industrial motor drives and automotive ECUs.
For engineers reviewing the 1.5SMC480AHE3_A/H datasheet, 1.5SMC480AHE3_A/H pinout, 1.5SMC480AHE3_A/H application, or 1.5SMC480AHE3_A/H equivalent, key selection criteria include clamping voltage margin relative to system rail, thermal derating above 25 °C, AEC-Q101 qualification status, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior under repetitive transients. Its 1500 W peak pulse power rating is specified at TA = 25 °C with derating per Figure 2, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of lightning-induced surges and inductive switching spikes. With a maximum junction temperature of +150 °C and thermal resistance RθJA = 75 °C/W, it supports operation in thermally constrained environments when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 408 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR (Breakdown Voltage) | 456–504 V at IT = 1 mA - Voltage at which avalanche conduction initiates; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 658 V at IPPM = 2.28 A - Peak voltage seen by protected circuit during 10/1000 µs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capability under standardized surge waveform; validates suitability for IEC 61000-4-5 Level 4 compliance. |
| TJ max | +150 °C - Maximum allowable junction temperature; sets upper limit for thermal design and ambient operating range. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; used to calculate temperature rise under steady-state power dissipation (PD = 6.5 W). |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line. | Used only in unidirectional configuration; must be tied to ground or return path for proper clamping action. |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line or rail. | Defines polarity-sensitive placement; reversal prevents clamping and risks device failure under surge. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables robust protection against severe transients such as lightning surges (IEC 61000-4-5) without degradation over rated duty cycle (0.01 %). |
| Glass passivated chip junction | Ensures stable avalanche characteristics, low leakage (<1 µA at VWM), and long-term reliability under thermal cycling. |
| AEC-Q101 qualified (HE3 suffix) | Validates suitability for automotive applications including engine control units, body electronics, and ADAS power supplies. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking; compatible with high-volume automated placement and reflow processes. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive MOSFETs and ICs. |
Applications
| Industrial Motor Drives | Automotive Engine Control Units |
|---|---|
Use Scenario: Protection of DC bus lines against voltage spikes caused by IGBT switching and regenerative braking feedback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed across main DC input rail to limit transient overvoltage. Use Value: Clamps 10/1000 µs surges up to 1500 W while maintaining VC ≤ 658 V, preserving gate driver integrity and preventing MOSFET avalanche failure. |
Use Scenario: Safeguarding 12 V/24 V power inputs in engine control modules exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main supply rail upstream of LDOs and microcontrollers. Use Value: AEC-Q101 qualification ensures operation across -40 °C to +150 °C ambient, with clamping performance validated under ISO 7637-2 Pulse 5a. |
| Telecom Power Supplies | Renewable Energy Inverters |
Use Scenario: Input-stage surge protection for AC/DC front-ends in base station power systems subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on rectified DC output prior to bulk capacitor filtering. Use Value: 408 V VWM allows use on 380–400 VDC telecom rails; 658 V VC limits stress on downstream SiC MOSFET gate drivers. |
Use Scenario: DC-link protection in solar string inverters where PV array transients couple into high-voltage DC buses. IC Role / Device Role / Timing Role: High-energy clamping element across 600–1000 VDC bus to absorb switching and lightning energy. Use Value: 1500 W PPPM and 2.28 A IPPM support coordination with upstream fuses and MOVs in multi-stage protection schemes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ480AHE3_A/H | Same VWM/VBR/VC specs but in smaller SMB (DO-214AA) package; 600 W PPPM rating vs. 1500 W. | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select only when board space is constrained and surge energy is ≤600 W; verify thermal margin with RθJA = 90 °C/W. |
| 1.5KE480A | Through-hole DO-201AE package; identical electrical specs but higher RθJA (65 °C/W) and no AEC-Q101 qualification. | Not suitable for automated SMT production or automotive under-hood environments requiring AEC validation. | Use only in legacy through-hole designs or non-automotive industrial applications where reflow compatibility is not required. |
Compared with SMBJ480AHE3_A/H and 1.5KE480A, the 1.5SMC480AHE3_A/H delivers higher surge energy handling in an AEC-Q101-qualified SMT package, making it the preferred choice for automotive and high-reliability industrial power rail protection where both 1500 W clamping and automated assembly are required.
Availability
1.5SMC480AHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, telecom power supplies, and renewable energy inverters requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for 1.5SMC480AHE3_A/H 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed for high-power, surface-mount transient suppression in demanding environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and automated manufacturability are essential.
FAQ
What is the clamping voltage of the 1.5SMC480AHE3_A/H under maximum rated surge current?
The 1.5SMC480AHE3_A/H has a maximum clamping voltage (VC) of 658 V when subjected to its rated peak pulse current (IPPM) of 2.28 A with a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and defines the upper voltage limit imposed on protected circuits during worst-case transient events. The 1.5SMC480AHE3_A/H maintains this clamping performance across its qualified operating temperature range.
Is the 1.5SMC480AHE3_A/H suitable for automotive applications?
Yes, the 1.5SMC480AHE3_A/H is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's 88303 datasheet. It is specifically intended for automotive power rail protection, including engine control units and body electronics, and has passed stress tests for temperature cycling, high-temperature reverse bias, and electrostatic discharge. The 1.5SMC480AHE3_A/H meets requirements for under-hood environments up to +150 °C junction temperature.
What is the standoff voltage (VWM) rating for the 1.5SMC480AHE3_A/H?
The standoff voltage (VWM) for the 1.5SMC480AHE3_A/H is 408 V, representing the maximum continuous reverse working voltage the device can withstand without entering avalanche conduction. This parameter ensures reliable blocking during normal operation while allowing precise coordination with system overvoltage thresholds. The 1.5SMC480AHE3_A/H maintains <1 µA leakage current at this voltage, minimizing standby power loss.
Does the 1.5SMC480AHE3_A/H have a bidirectional variant?
No, the 1.5SMC480AHE3_A/H is strictly unidirectional, as indicated by the "A" suffix and absence of "CA" in the part number. Bidirectional variants in the same series use the "CA" suffix (e.g., 1.5SMC480CA), but no CA version is listed for 480 V in the Vishay 88303 datasheet. The 1.5SMC480AHE3_A/H requires correct anode–cathode orientation during PCB layout to function as intended.
What package type does the 1.5SMC480AHE3_A/H use, and what are its mounting requirements?
The 1.5SMC480AHE3_A/H uses the SMC (DO-214AB) surface-mount package, with mechanical dimensions defined in Vishay's 88303 datasheet Figure 6. It requires mounting on minimum 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal for rated 1500 W pulse power handling. The 1.5SMC480AHE3_A/H is MSL Level 1 and compatible with standard lead-free reflow profiles peaking at 260 °C.
1.5SMC480AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 408V
- Voltage - Breakdown (Min):
- 456V
- Voltage - Clamping (Max) @ Ipp:
- 658V
- Current - Peak Pulse (10/1000µs):
- 2.28A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC480AHE3_A/H FAQ
1.How can I place an order for 1.5SMC480AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC480AHE3_A/H 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 1.5SMC480AHE3_A/H reliable?
The price and inventory of 1.5SMC480AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC480AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC480AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC480AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC480AHE3_A/H?
1.5SMC480AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC480AHE3_A/H 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 1.5SMC480AHE3_A/H?
For technical support, including 1.5SMC480AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC480AHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC480AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC480AHE3_A/H 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 1.5SMC480AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC480AHE3_A/H?
All 1.5SMC480AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC480AHE3_A/H, 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 1.5SMC480AHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC480AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC480AHE3_A/H Tags
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