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Vishay General Semiconductor - Diodes Division 1.5SMC8.2AHE3/57T
- Part No.:
- 1.5SMC8.2AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2AHE3/57T.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,626
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Product details
Overview
1.5SMC8.2AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 7.02 V stand-off voltage (VWM), 7.79–8.61 V breakdown voltage (VBR) at 10 mA, 12.1 V maximum clamping voltage (VC) at 200 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor signal lines, industrial I/O interfaces, and DC power rail protection.
For engineers reviewing the 1.5SMC8.2AHE3/57T datasheet, 1.5SMC8.2AHE3/57T pinout, 1.5SMC8.2AHE3/57T application, or 1.5SMC8.2AHE3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping performance under surge conditions, and direct alternative part comparisons for ESD and lightning transient protection design.
Technical Context
The 1.5SMC8.2AHE3/57T operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold to clamp transients. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<200 µA at VWM), while MSL Level 1 moisture sensitivity supports lead-free reflow up to 260 °C peak.
It delivers 12.1 V clamping at 200 A (10/1000 µs), with 0.065 %/°C temperature coefficient of VBR, enabling predictable performance across -65 °C to +150 °C operating junction range. The device is rated for 200 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 15 °C/W junction-to-lead thermal resistance for effective heat dissipation into PCB copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.02 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 7.79–8.61 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering during fast transients. |
| VC (Clamping) | 12.1 V at 200 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended pad layout. |
| IPPM | 200 A - Peak surge current capability; validates suitability for automotive load-dump and inductive switching events. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and high-ambient industrial enclosures. |
| RθJL | 15 °C/W - Low junction-to-lead thermal resistance allows efficient heat transfer to PCB traces, reducing thermal derating needs. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line; conducts during overvoltage to shunt current to ground. |
| Anode (unbanded end) | Reference/ground terminal | Typically tied to system ground or low-impedance return path; completes clamping loop. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces. |
| 1500 W peak pulse power | Withstands high-energy transients per ISO 7637-2 and IEC 61000-4-5 without degradation. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<200 µA) over temperature and lifetime. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak, eliminating bake requirements pre-assembly. |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes voltage overshoot during clamping, enhancing protection margin for 5 V and 3.3 V logic. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach the transceiver input. Use Value: Limits induced voltage to ≤12.1 V during 200 A surges, preserving signal integrity and preventing latch-up in 5 V tolerant interfaces. |
Use Scenario: Safeguarding digital input/output terminals of programmable logic controllers against field-induced surges from solenoid switching and motor drives. IC Role / Device Role / Timing Role: Standoff-connected TVS on each I/O line, referenced to common ground plane, absorbing repetitive 10/1000 µs transients. Use Value: Maintains functional safety by preventing false triggering or damage during 1500 W surge events typical in factory automation environments. |
| DC Power Rail Protection | Consumer Device USB Port Protection |
Use Scenario: Secondary overvoltage protection on 5–12 V DC power rails feeding microcontrollers and communication ICs in embedded systems. IC Role / Device Role / Timing Role: Parallel-connected TVS across rail and ground, activated only during fault conditions exceeding VWM. Use Value: Clamps rail voltage to 12.1 V within nanoseconds, avoiding brownout or reset caused by upstream regulator overvoltage faults. |
Use Scenario: ESD and surge suppression on USB 2.0 D+/D− lines in portable medical monitors and smart home hubs exposed to human contact. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS (with <100 pF typical CJ) placed inline with data lines to minimize signal distortion. Use Value: Passes IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) while maintaining USB signal integrity up to 480 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower PPPM (600 W), same VWM (6.4 V), higher VC (12.7 V at 49.2 A), SMB package (smaller footprint, lower thermal mass). | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use where surge energy is lower. | Select when board space is constrained and peak surge energy remains ≤600 W. |
| 1.5KE8.2A | Through-hole DO-15 package, identical VBR and VC, but lower IPPM (143 A) and PPPM (1500 W only with derated mounting). | Requires wave soldering or hand assembly; unsuitable for automated SMT lines or high-vibration environments. | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency. |
Compared with SMBJ8.0A and 1.5KE8.2A, the 1.5SMC8.2AHE3/57T uniquely combines AEC-Q101 qualification, SMC surface-mount reliability, and full 1500 W capability at 200 A - making it the preferred choice for automotive and high-reliability industrial SMT production where both surge robustness and process compatibility are mandatory.
Availability
1.5SMC8.2AHE3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and DC power rail safeguarding requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for 1.5SMC8.2AHE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade validation.
The 1.5SMC8.2AHE3/57T belongs to Vishay's TRANSZORB® SMC series - engineered specifically for high-power transient suppression in space-constrained, high-reliability applications including automotive electronics, industrial controls, and telecom infrastructure.
FAQ
What is the clamping voltage of the 1.5SMC8.2AHE3/57T at its rated peak pulse current?
The 1.5SMC8.2AHE3/57T has a maximum clamping voltage (VC) of 12.1 V at 200 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards, ensuring repeatable performance in real-world PCB layouts.
Is the 1.5SMC8.2AHE3/57T qualified for automotive applications?
Yes, the 1.5SMC8.2AHE3/57T carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. This certification validates its reliability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces under extended temperature and vibration stress conditions.
What does the "HE3/57T" suffix mean in 1.5SMC8.2AHE3/57T?
The "HE3" denotes RoHS-compliant construction with AEC-Q101 qualification; "57T" specifies packaging in 7-inch plastic tape-and-reel format with 850 units per reel. This configuration supports high-speed pick-and-place assembly and ensures compliance with automotive supply chain traceability requirements.
How does the thermal performance of the 1.5SMC8.2AHE3/57T compare to similar SMC TVS diodes?
The 1.5SMC8.2AHE3/57T has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W - lower than many competing SMC TVS devices - enabling more efficient heat transfer to PCB copper. This improves sustained surge handling and reduces derating at elevated ambient temperatures.
Can the 1.5SMC8.2AHE3/57T be used in bidirectional configurations?
No, the 1.5SMC8.2AHE3/57T is unidirectional only, as indicated by the "A" suffix. For bidirectional operation, Vishay offers the 1.5SMC8.2CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and is marked with no polarity band.
1.5SMC8.2AHE3/57T 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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)
1.5SMC8.2AHE3/57T FAQ
1.How can I place an order for 1.5SMC8.2AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2AHE3/57T 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 1.5SMC8.2AHE3/57T reliable?
The price and inventory of 1.5SMC8.2AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2AHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2AHE3/57T?
1.5SMC8.2AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2AHE3/57T 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 1.5SMC8.2AHE3/57T?
For technical support, including 1.5SMC8.2AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2AHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC8.2AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2AHE3/57T 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 1.5SMC8.2AHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2AHE3/57T?
All 1.5SMC8.2AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2AHE3/57T, 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 1.5SMC8.2AHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC8.2AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2AHE3/57T Tags
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