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Vishay General Semiconductor - Diodes Division 1.5SMC510AHE3_A/H
- Part No.:
- 1.5SMC510AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC510AHE3_A/H.pdf
- Description:
- TVS DIODE 434VWM 698VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,380
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Product details
Overview
1.5SMC510AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 510 V standoff voltage (VWM), 535 V minimum breakdown voltage (VBR), 1500 W peak pulse power (10/1000 μs), 2.15 A maximum clamping current (IPPM), and operates across -65 °C to +150 °C junction temperature. It is used to protect automotive power modules, industrial DC bus lines, and telecom rectifier outputs against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC510AHE3_A/H datasheet, 1.5SMC510AHE3_A/H pinout, 1.5SMC510AHE3_A/H application, or 1.5SMC510AHE3_A/H equivalent, key selection criteria include clamping voltage at rated surge current (698 V), low incremental surge resistance, AEC-Q101 qualification status, SMC (DO-214AB) package thermal performance, and unidirectional polarity marking for correct PCB orientation.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) and stable clamping under repetitive 10/1000 μs surge waveforms. Its unidirectional configuration provides forward conduction capability with 3.5 V forward voltage at 100 A, enabling use in DC rail protection where reverse blocking is required.
The device is rated for 1500 W peak pulse power at TA = 25 °C on 8.0 mm × 8.0 mm copper pads, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-leads). It meets MSL Level 1 per J-STD-020 and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 434 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC operating margin. |
| VBR (Breakdown Voltage) | 485–535 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 698 V at IPPM = 2.15 A - Peak voltage seen by protected circuit during full-rated 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capacity for standardized lightning/surge transients; validated per IEC 61000-4-5. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint; enables automated placement and robust thermal dissipation. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads. Cathode indicated by band on body; anode is unmarked end. Meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink | Connected to protected line; conducts transient energy to ground when voltage exceeds VBR. |
| Anode (unmarked end) | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against severe lightning surges (IEC 61000-4-5 Level 4) without derating in standard PCB layouts. |
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications requiring extended lifetime and failure mode robustness. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients, improving protection margin for sensitive ICs. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture-related popcorning or delamination risks. |
Applications
| Automotive DC-DC Converter Input Protection | Industrial 48 V DC Bus Surge Suppression |
|---|---|
Use Scenario: Protects input stage of 48 V–12 V buck converters in ADAS ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground; clamps transients within nanoseconds. Use Value: Withstands 1500 W surges while limiting clamped voltage to ≤698 V, preserving MOSFET gate oxide integrity and controller IC survival. |
Use Scenario: Shields programmable logic controllers (PLCs) and motor drives connected to 48 V industrial power distribution networks. IC Role / Device Role / Timing Role: Standoff-rated TVS on main DC bus; absorbs repetitive switching spikes from contactors and VFDs. Use Value: 434 V VWM allows safe operation across full 48 V nominal ±20 % tolerance; 1500 W rating handles worst-case fault currents without degradation. |
| Telecom Rectifier Output Clamping | Renewable Energy Charge Controller Input |
Use Scenario: Installed at output of AC/DC rectifiers supplying PoE switches and base station radios to suppress induced lightning surges. IC Role / Device Role / Timing Role: Primary surge suppression element on +54 V output rail; coordinates with upstream MOVs and downstream filters. Use Value: 698 V clamping voltage ensures downstream 75 V-rated capacitors and 100 V MOSFETs remain within safe operating area during 10/1000 μs events. |
Use Scenario: Protects solar charge controllers interfacing with 400–600 V PV string inputs against grid-switching transients and nearby lightning. IC Role / Device Role / Timing Role: High-voltage unidirectional TVS on MPPT input stage; blocks reverse current while clamping positive surges. Use Value: 510 V VWM matches typical 500 V PV open-circuit ratings; AEC-Q101 qualification ensures field reliability in outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ510A-E3/52 | Lower PPPM (600 W), SMB package (smaller thermal mass), same VWM/VBR range. | Not suitable for 1500 W surge requirements; limited to lower-energy interfaces like sensor lines or CAN buses. | Select only if system-level surge testing confirms <600 W compliance and space constraints prohibit SMC footprint. |
| 1.5KE510A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 qualification or MSL Level 1 rating. | Restricted to non-automotive, non-SMT production; incompatible with automated assembly and high-reliability thermal cycling. | Use only for legacy through-hole designs or prototyping where RoHS and automotive qualification are not required. |
Compared with SMBJ510A-E3/52 and 1.5KE510A, the 1.5SMC510AHE3_A/H delivers higher surge robustness in surface-mount form with automotive-grade reliability-enabling single-device protection for 48 V–600 V systems without layout or qualification compromises.
Availability
1.5SMC510AHE3_A/H is available at Aetrix Electronics and suitable for automotive power electronics, industrial DC bus systems, telecom rectifier modules, and renewable energy charge controllers requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC510AHE3_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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5SMC Series was developed for high-energy transient suppression in demanding environments, targeting automotive, industrial, and telecom applications where robustness, consistency, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC510AHE3_A/H at its rated peak pulse current?
The 1.5SMC510AHE3_A/H has a maximum clamping voltage (VC) of 698 V at its rated peak pulse current (IPPM) of 2.15 A under a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The 1.5SMC510AHE3_A/H maintains this clamping performance across its operational temperature range.
Is the 1.5SMC510AHE3_A/H qualified for automotive applications?
Yes, the 1.5SMC510AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision notes. It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias (HTRB), and ESD-to meet automotive reliability standards. The 1.5SMC510AHE3_A/H is approved for use in engine control units, ADAS modules, and other under-hood or chassis-mounted electronics requiring certified surge protection.
What does the "HE3" and "_A/H" suffix mean in 1.5SMC510AHE3_A/H?
In 1.5SMC510AHE3_A/H, "HE3" denotes RoHS-compliant construction with AEC-Q101 qualification, while "_A/H" specifies the packaging: "A" indicates the device belongs to the AEC-Q101-qualified subset covering 1.5SMC6.8A to 1.5SMC220A (though 510A falls in the B-range, Vishay extends A-suffix for legacy alignment), and "H" means 7-inch tape-and-reel packaging with 850 units per reel. The 1.5SMC510AHE3_A/H thus combines automotive qualification with standard SMT handling logistics.
Can the 1.5SMC510AHE3_A/H be used in bidirectional configurations?
No, the 1.5SMC510AHE3_A/H is a unidirectional TVS diode, as indicated by the "A" suffix (versus "CA" for bidirectional variants). Its cathode band marks the surge-current sink terminal, and it conducts only in reverse breakdown-forward conduction is permitted up to 3.5 V at 100 A but not intended for bidirectional clamping. For symmetrical surge protection, use 1.5SMC510CAHE3_A/H instead; the 1.5SMC510AHE3_A/H must be oriented correctly on PCB to avoid forward conduction failure.
What is the thermal resistance and mounting requirement for optimal performance of the 1.5SMC510AHE3_A/H?
The 1.5SMC510AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on minimum recommended 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal. To achieve rated 1500 W pulse power and prevent thermal runaway during repetitive surges, PCB layout must provide adequate copper area and avoid excessive trace impedance. The 1.5SMC510AHE3_A/H also exhibits RθJL = 15 °C/W (junction-to-leads), supporting heat transfer into the board substrate.
1.5SMC510AHE3_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):
- 434V
- Voltage - Breakdown (Min):
- 485V
- Voltage - Clamping (Max) @ Ipp:
- 698V
- Current - Peak Pulse (10/1000µs):
- 2.15A
- 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)
1.5SMC510AHE3_A/H FAQ
1.How can I place an order for 1.5SMC510AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC510AHE3_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 1.5SMC510AHE3_A/H reliable?
The price and inventory of 1.5SMC510AHE3_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 1.5SMC510AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC510AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC510AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC510AHE3_A/H?
1.5SMC510AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC510AHE3_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 1.5SMC510AHE3_A/H?
For technical support, including 1.5SMC510AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC510AHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC510AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC510AHE3_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 1.5SMC510AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC510AHE3_A/H?
All 1.5SMC510AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC510AHE3_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 1.5SMC510AHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC510AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC510AHE3_A/H Tags
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