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Vishay General Semiconductor - Diodes Division 1.5SMC510AHE3_A/I
- Part No.:
- 1.5SMC510AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC510AHE3_A/I.pdf
- Description:
- TVS DIODE 434VWM 698VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,420
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Product details
Overview
1.5SMC510AHE3_A/I 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 maximum breakdown voltage (VBR), 1500 W peak pulse power (10/1000 μs), 2.15 A peak pulse current (IPPM), and clamps to 698 V at rated surge, protecting sensitive MOSFETs and ICs in industrial power supplies and automotive ECUs.
For engineers reviewing the 1.5SMC510AHE3_A/I datasheet, 1.5SMC510AHE3_A/I pinout, 1.5SMC510AHE3_A/I application, or 1.5SMC510AHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMC (DO-214AB) package details, clamping behavior under lightning-induced transients, and direct alternatives with documented voltage and surge rating differences.
Technical Context
The 1.5SMC510AHE3_A/I operates as a unidirectional silicon avalanche diode, leveraging glass-passivated junction technology for stable reverse-biased clamping. Its 510 V stand-off voltage enables use on 400–480 VAC-derived DC rails, while its 698 V clamping voltage at 2.15 A ensures safe margin below typical 750 V MOSFET drain-source breakdown ratings.
Designed for repetitive surge handling with 0.01% duty cycle, it exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD, inductive switching spikes, and lightning-induced surges per IEC 61000-4-5. Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8 mm × 8 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 510 V - Maximum continuous reverse voltage before clamping begins; sets operating margin above 480 VDC bus rails. |
| 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 10/1000 μs surge; stays below 750 V system insulation limits. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains single 10/1000 μs surges up to 1.5 kW; meets IEC 61000-4-5 Level 4 (4 kV) requirements with appropriate series impedance. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and enclosed industrial enclosures. |
| Package | SMC (DO-214AB) - Surface-mount package with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place and reflow. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability per stress test requirements; suffix "HE3" denotes RoHS-compliant + AEC-Q101 qualification. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by band; anode is unmarked end. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line (e.g., DC bus); conducts during positive transients relative to ground. |
| Anode (unmarked end) | Reference/ground terminal | Typically tied to system ground or low-impedance return path; completes clamping current loop during surge events. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against lightning surges (IEC 61000-4-5) and inductive load switching without thermal runaway. |
| Glass passivated chip junction | Ensures long-term stability of breakdown voltage and leakage current across temperature and humidity stress conditions. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, battery management systems, and ADAS power domains. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision for sensitive gate drivers and analog sensors. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
Applications
| Industrial AC/DC Power Supply Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protects rectified 400–480 VDC input stages of switch-mode power supplies against lightning-induced surges and capacitor discharge transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between DC+ and chassis ground to clamp positive-going transients exceeding 510 V. Use Value: Limits voltage to ≤698 V during 2.15 A surges, preventing damage to primary-side MOSFETs and bridge rectifiers rated for 700 V. |
Use Scenario: Shields 12 V/24 V supply inputs of BCMs from load-dump spikes (SAE J1113-11) and alternator ripple transients. IC Role / Device Role / Timing Role: Mounted upstream of LDOs and microcontrollers to absorb >100 V, 100 ms load-dump energy without degradation. Use Value: Withstands 1500 W peak pulses and operates reliably from −65 °C to +150 °C, meeting automotive under-hood thermal requirements. |
| Telecom Central Office DC Feeder Line | Renewable Energy Inverter DC Link |
Use Scenario: Guards -48 V telecom DC distribution lines against induced surges from nearby lightning strikes and power cross events. IC Role / Device Role / Timing Role: Unidirectional configuration referenced to negative rail; clamps positive excursions on the -48 V line to protect interface ICs. Use Value: Low leakage (<1 μA at 510 V) prevents battery drain; AEC-Q101 qualification supports extended field life in outdoor cabinets. |
Use Scenario: Protects 600–800 V DC link capacitors and IGBT gate drivers in solar inverters from grid-switching transients and fault currents. IC Role / Device Role / Timing Role: Placed across DC+ and DC− rails to suppress common-mode surges exceeding 510 V standoff level. Use Value: 698 V clamping voltage provides ≥100 V margin below 800 V IGBT blocking rating, reducing risk of destructive avalanche failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ510A | Same 510 V VWM, but lower PPPM (400 W) and higher VC (725 V at 1.7 A); SMC package, non-AEC-Q101. | Rated for commercial/industrial use only; insufficient for automotive load-dump or high-reliability telecom deployments. | Select when cost sensitivity outweighs surge energy requirement and AEC-Q101 is not mandated. |
| ON Semiconductor 1.5KE510A | Same VWM/VBR/VC specs, but axial DO-201AD package; higher RθJA (100 °C/W), no AEC-Q101 qualification. | Requires through-hole assembly; unsuitable for high-density PCBs or automated SMT lines; limited thermal performance in confined spaces. | Choose only for legacy board redesigns where SMT is unavailable or mechanical mounting constraints favor axial form factor. |
Compared with Littelfuse SMAJ510A and ON Semi 1.5KE510A, the 1.5SMC510AHE3_A/I delivers 3.75× higher surge power handling, tighter clamping (698 V vs. 725 V), and automotive-grade qualification-making it the sole option for space-constrained, high-reliability 510 V rail protection requiring SMT compatibility and AEC-Q101 compliance.
Availability
1.5SMC510AHE3_A/I is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, automotive body control modules, telecom DC feeder lines, and renewable energy inverter DC links requiring stable component supply, AEC-Q101 validation, and SMC-package compatibility with high-volume SMT production.
Supply support for 1.5SMC510AHE3_A/I 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, efficiency, and application-specific optimization.
The 1.5SMC Series was developed for high-power transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and precise clamping performance are critical.
FAQ
What is the clamping voltage of the 1.5SMC510AHE3_A/I at its rated peak pulse current?
The 1.5SMC510AHE3_A/I clamps to a maximum 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 mm × 8 mm copper pads) and defines the upper voltage limit imposed on protected circuits during surge events. It ensures compatibility with 700 V-class power semiconductors.
Is the 1.5SMC510AHE3_A/I qualified for automotive applications?
Yes, the 1.5SMC510AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing-validating its suitability for automotive power domains such as body control modules, battery management systems, and infotainment power supplies.
What does the "_A/I" suffix mean in 1.5SMC510AHE3_A/I?
The "_A/I" suffix in 1.5SMC510AHE3_A/I indicates packaging and reel configuration: "A" denotes AEC-Q101 qualification, and "I" specifies 3500-unit quantity on a 13-inch diameter plastic tape-and-reel. This format supports high-volume SMT assembly and aligns with Vishay's ordering convention for automotive-grade SMC devices.
Can the 1.5SMC510AHE3_A/I be used in bidirectional configurations?
No, the 1.5SMC510AHE3_A/I is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and absence of bidirectional VBR/VWM ranges in its datasheet specifications. For bidirectional protection at similar voltage levels, Vishay offers the 1.5SMC510CA variant, which provides symmetrical clamping in both polarities.
What is the maximum operating temperature range for the 1.5SMC510AHE3_A/I?
The 1.5SMC510AHE3_A/I has an operating junction and storage temperature range of −65 °C to +150 °C. This wide range supports deployment in extreme environments-including under-hood automotive locations, outdoor telecom cabinets, and industrial motor drives-without derating required up to TJ = 150 °C under defined thermal conditions.
1.5SMC510AHE3_A/I 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/I FAQ
1.How can I place an order for 1.5SMC510AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC510AHE3_A/I 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/I reliable?
The price and inventory of 1.5SMC510AHE3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC510AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC510AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC510AHE3_A/I?
1.5SMC510AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC510AHE3_A/I 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/I?
For technical support, including 1.5SMC510AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC510AHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC510AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC510AHE3_A/I 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/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC510AHE3_A/I?
All 1.5SMC510AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC510AHE3_A/I, 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/I part is unused and in its original packaging.
Return procedure for 1.5SMC510AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC510AHE3_A/I Tags
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