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Vishay General Semiconductor - Diodes Division SM15T10A-E3/57T
- Part No.:
- SM15T10A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10A-E3/57T.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:638
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Product details
Overview
SM15T10A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 14.5 V clamping voltage at 103 A IPPM, and 8.55 V stand-off voltage - designed to protect MOSFETs, ICs, and sensor signal lines against lightning-induced and inductive-switching transients in automotive and industrial power electronics.
For engineers reviewing the SM15T10A-E3/57T datasheet, SM15T10A-E3/57T pinout, SM15T10A-E3/57T application, or SM15T10A-E3/57T equivalent, key selection criteria include verified clamping performance at 103 A, unidirectional polarity with cathode band marking, RoHS-compliant E3 termination, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
The SM15T10A-E3/57T employs a glass-passivated silicon junction optimized for low-inductance transient suppression. Its 10/1000 μs waveform response delivers 14.5 V clamping at 103 A peak pulse current, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W enabling reliable operation up to TJ = 150 °C.
Designed for high-source-impedance systems, it operates within 5.8–188 V VWM range and exhibits ≤10 μA reverse leakage at 8.55 V, ensuring minimal standby power loss. Failure mode under overstress is short-circuit, consistent with IEC 61000-4-5 Level 4 compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 9.50 V / 10.5 V at 1.0 mA - ensures precise breakdown threshold for predictable protection onset |
| VC @ IPPM | 14.5 V at 103 A (10/1000 μs) - limits downstream voltage stress during surge events |
| PPPM | 1500 W - sustains high-energy transients from lightning or motor switching without degradation |
| ID @ VWM | ≤10 μA - negligible leakage current preserves signal integrity and battery life in low-power circuits |
| TJ max | 150 °C - supports operation in under-hood automotive and industrial ambient environments |
| Package | SMC (DO-214AB) - industry-standard 7.75 mm × 6.22 mm footprint compatible with automated SMT placement |
Pinout & Package
SM15T10A-E3/57T uses the SMC (DO-214AB) surface-mount package with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity is marked by a cathode band on the body; the device is unidirectional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to system ground or low-side return path during transient clamping |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., 12 V rail or sensor input) - defines clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges without derating in standard PCB layouts |
| Glass passivated chip junction | Improves long-term reliability and moisture resistance versus epoxy-passivated alternatives |
| Low inductance construction | Minimizes voltage overshoot during fast-rising transients (e.g., <100 ns edges) |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without preconditioning or special handling |
| RoHS-compliant E3 termination | Meets EU Directive 2011/65/EU and JESD 201 Class 2 whisker resistance requirements |
Applications
| Automotive Power Distribution | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in engine control units against load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and LDO input to clamp positive-going surges above 14.5 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog sensor inputs (e.g., current shunt amplifiers) from inductive kickback in servo drive feedback loops. IC Role / Device Role / Timing Role: Clamping diode mounted directly at connector interface to suppress >1 kV, 10/1000 μs transients induced by contactor switching. Use Value: Maintains ADC accuracy by limiting input voltage excursion to ≤14.5 V, avoiding saturation or internal ESD diode conduction. |
| Telecom DC Power Input | Consumer Appliance Control Board |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced surges entering via Ethernet cables. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input stage, coordinated with secondary GDT and MOV stages. Use Value: Absorbs 1500 W energy without failure, reducing need for redundant protection layers and board space. |
Use Scenario: Protecting microcontroller GPIOs driving relays or triacs in smart home hubs and HVAC controllers. IC Role / Device Role / Timing Role: Localized clamping element across relay coil terminals to suppress 600 V inductive spikes. Use Value: Extends MCU lifetime by eliminating repetitive VDD rail perturbations that cause brown-out resets or flash corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W), same VWM (8.55 V), SMA package (smaller thermal mass) | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy threats like ESD or local switching noise | Select SMAJ10A only when board space is constrained and surge threat level is ≤Level 2. |
| SMCJ10A | Same PPPM (1500 W), identical SMC package, but higher VC (17.0 V at 87 A) | Clamps later - may allow damaging overvoltage to reach downstream ICs before activation | Choose SM15T10A-E3/57T over SMCJ10A where tighter clamping (14.5 V vs. 17.0 V) is critical for 3.3 V or 5 V logic protection. |
Compared with SMAJ10A and SMCJ10A, the SM15T10A-E3/57T delivers superior energy handling in the same SMC footprint while achieving the lowest clamping voltage in its 1500 W class - making it optimal for protecting voltage-sensitive loads in automotive and industrial systems where margin is constrained.
Availability
SM15T10A-E3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive I/O protection, and telecom DC power input requiring stable component supply and full traceability through production lifecycles.
Supply support for SM15T10A-E3/57T 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, TVS devices, and optoelectronics with emphasis on reliability and AEC-Q101 qualification.
The SM15T Series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be controlled and clamping precision is non-negotiable.
FAQ
What is the clamping voltage of SM15T10A-E3/57T at its rated peak pulse current?
The SM15T10A-E3/57T has a maximum clamping voltage (VC) of 14.5 V at 103 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions per Figure 1 in Vishay document 88380 and reflects the actual voltage seen by protected circuitry during worst-case surge events - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is SM15T10A-E3/57T RoHS-compliant and halogen-free?
Yes, SM15T10A-E3/57T carries the E3 suffix, indicating RoHS-compliance per EU Directive 2011/65/EU. However, it is not halogen-free; halogen-free versions use the M3 suffix (e.g., SM15T10A-M3/57T). Both E3 and M3 meet JESD 201 Class 2 whisker resistance requirements and are rated for lead-free reflow up to 260 °C.
Does SM15T10A-E3/57T have AEC-Q101 qualification?
The base SM15T10A-E3/57T is commercial-grade and not AEC-Q101 qualified. For automotive applications requiring qualification, Vishay offers the SM15T10AHE3_A/H variant (HE3 suffix), which is explicitly AEC-Q101 qualified and shares identical electrical characteristics and SMC packaging - only differing in traceability and test reporting.
What is the thermal resistance of SM15T10A-E3/57T, and how does it affect layout?
SM15T10A-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W. To maintain safe operation at full 1500 W pulse rating, the datasheet specifies mounting on 8.0 mm × 8.0 mm copper pads per terminal - underscoring the need for adequate copper area and thermal vias in PCB layout to avoid junction temperature exceedance.
How does the unidirectional configuration of SM15T10A-E3/57T impact circuit protection design?
The unidirectional configuration of SM15T10A-E3/57T requires correct orientation: cathode (marked band) connects to the line being protected, anode to ground. This enables clamping only of positive transients - essential for DC rails where negative excursions are either absent or handled separately. Incorrect polarity results in no protection, unlike bidirectional variants such as SM15T10CA.
SM15T10A-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T10A-E3/57T FAQ
1.How can I place an order for SM15T10A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10A-E3/57T 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 SM15T10A-E3/57T reliable?
The price and inventory of SM15T10A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10A-E3/57T is usually 5 days.
3.What payment methods are accepted for SM15T10A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10A-E3/57T?
SM15T10A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10A-E3/57T 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 SM15T10A-E3/57T?
For technical support, including SM15T10A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10A-E3/57T requirements.
6.How does Aetrix verify that SM15T10A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T10A-E3/57T 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 SM15T10A-E3/57T meets industry standards.
7.What is the process for return or replacement of SM15T10A-E3/57T?
All SM15T10A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10A-E3/57T, 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 SM15T10A-E3/57T part is unused and in its original packaging.
Return procedure for SM15T10A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10A-E3/57T Tags
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