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Vishay General Semiconductor - Diodes Division 1.5SMC11AHE3/57T
- Part No.:
- 1.5SMC11AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC11AHE3/57T.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,987
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Product details
Overview
1.5SMC11AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 µs), 15.6 V maximum clamping voltage at 96.2 A peak pulse current, and 9.40 V stand-off voltage - designed to protect automotive-grade power rails and signal lines against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC11AHE3/57T datasheet, 1.5SMC11AHE3/57T pinout, 1.5SMC11AHE3/57T application, or 1.5SMC11AHE3/57T equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for under-hood automotive electronics, industrial sensor interfaces, and DC power input stages requiring robust transient immunity.
Technical Context
This unidirectional TVS operates by avalanche breakdown above its 10.5–11.6 V breakdown voltage (VBR) at 1 mA test current, with a tightly controlled 9.40 V reverse stand-off voltage (VWM) ensuring reliable blocking during normal operation. Its glass-passivated junction delivers fast response time (<1 ns) and stable leakage (<5.0 µA at VWM).
The device sustains 200 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits a thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads. It is RoHS-compliant, halogen-free, and qualified per AEC-Q101 for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - protects against high-energy transients like ISO 7637-2 pulse 5a without thermal runaway |
| Stand-off Voltage (VWM) | 9.40 V - ensures no conduction during nominal 9 V automotive battery operation |
| Breakdown Voltage (VBR) | 10.5–11.6 V at 1 mA - defines precise avalanche initiation threshold for repeatable clamping |
| Max Clamping Voltage (VC) | 15.6 V at 96.2 A - limits downstream IC voltage stress to safe levels during surge events |
| Leakage Current (ID) | <5.0 µA at VWM - minimizes standby power loss in always-on automotive modules |
| Operating Temperature | −65 °C to +150 °C - supports engine compartment and industrial ambient conditions |
| Package | SMC (DO-214AB) - industry-standard surface-mount footprint with 0.320" body length and matte tin leads |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with UL 94 V-0 rating; cathode indicated by band on one end; terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Avalanche conduction terminal during reverse surge | Banded end connected to protected line's higher-potential side (e.g., 12 V rail or signal line) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including powertrain and ADAS sensor modules |
| 1500 W peak pulse power | Withstands ISO 16750-2 load dump and IEC 61000-4-5 surge waveforms without degradation |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFETs, MCUs, and CAN transceivers |
| MSL Level 1 (260 °C peak) | Enables standard reflow assembly without pre-baking or special handling |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V battery feed to body control module exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp surges before LDO or DC-DC converter. Use Value: Limits voltage to ≤15.6 V during 96.2 A transients, preventing damage to 16 V-rated input capacitors and regulators. |
Use Scenario: Analog output line (0–10 V) from pressure sensor in factory automation PLC. IC Role / Device Role / Timing Role: TVS mounted at connector interface to suppress ESD and cable-coupled noise. Use Value: Sub-1 ns response clamps 8 kV contact ESD to <16 V, preserving ADC reference integrity and measurement accuracy. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
|
Use Scenario: −48 V DC power input to remote radio unit in 5G base station. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, protecting upstream rectifier and filter caps. Use Value: Withstands repeated 1500 W surges per IEC 61000-4-5, extending field life in lightning-prone deployments. |
Use Scenario: High-side gate drive supply (15 V) for IGBT in HVAC inverter. IC Role / Device Role / Timing Role: TVS across gate driver VCC–GND to suppress Miller-induced voltage spikes. Use Value: Clamps transients to 15.6 V, preventing false turn-on and shoot-through in half-bridge configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-E3/52 | Lower peak power (600 W), same VWM (9.4 V), SMB package (smaller footprint, higher RθJA) | Suitable for space-constrained consumer electronics but not automotive load dump | Select when board area is critical and surge energy is ≤600 W (e.g., USB-C PD protection) |
| 1.5KE11A | Through-hole DO-201 package, identical electrical specs, no AEC-Q101 qualification | Limited to industrial or commercial PCBs where automated SMT is not required | Choose only for legacy through-hole designs or prototyping where rework tolerance is prioritized |
Compared with 1.5SMC11AHE3/57T, SMBJ11A-E3/52 trades surge robustness for compactness, while 1.5KE11A sacrifices automotive qualification and SMT compatibility for mechanical serviceability - making 1.5SMC11AHE3/57T the sole choice for production automotive SMT assemblies requiring AEC-Q101 compliance and 1500 W immunity.
Availability
1.5SMC11AHE3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom DC power feeds requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for 1.5SMC11AHE3/57T 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, and protection devices with emphasis on reliability, automotive qualification, and high-power handling.
The 1.5SMC Series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive power distribution, industrial control inputs, and telecom infrastructure where AEC-Q101 validation and 1500 W surge capability are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC11AHE3/57T under a 10/1000 µs surge?
The 1.5SMC11AHE3/57T has a maximum clamping voltage (VC) of 15.6 V at 96.2 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88303 and guarantees that downstream components see no more than 15.6 V during worst-case surge events - critical for safeguarding 16 V-rated ICs in automotive applications.
Is the 1.5SMC11AHE3/57T qualified for automotive use?
Yes, the 1.5SMC11AHE3/57T carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified per Vishay's ordering nomenclature. This certification validates its reliability for automotive applications including engine control units, infotainment power supplies, and ADAS sensor modules operating in temperature ranges from −65 °C to +150 °C.
What does the "57T" in 1.5SMC11AHE3/57T signify?
The "57T" denotes the packaging configuration: 7-inch diameter plastic tape and reel, with 850 units per reel. This format is optimized for high-speed SMT placement equipment and aligns with IPC-7351 standards for SMC (DO-214AB) devices - ensuring consistent feeding, reduced misalignment, and compatibility with automated assembly lines.
How does the 1.5SMC11AHE3/57T differ from bidirectional variants like 1.5SMC11CA?
The 1.5SMC11AHE3/57T is unidirectional, with polarity marked by a cathode band and intended for DC line protection where current flows in one direction. In contrast, 1.5SMC11CA is bidirectional, lacks polarity marking, and protects AC or differential signals - making it unsuitable as a drop-in replacement for 1.5SMC11AHE3/57T in automotive 12 V rail applications due to different conduction behavior and leakage profiles.
What is the thermal resistance of the 1.5SMC11AHE3/57T in standard mounting conditions?
The 1.5SMC11AHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in Vishay document 88303. This value enables accurate thermal derating calculations for continuous power dissipation up to 6.5 W and confirms suitability for high-temperature under-hood environments.
1.5SMC11AHE3/57T 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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)
1.5SMC11AHE3/57T FAQ
1.How can I place an order for 1.5SMC11AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC11AHE3/57T 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 1.5SMC11AHE3/57T reliable?
The price and inventory of 1.5SMC11AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC11AHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC11AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC11AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC11AHE3/57T?
1.5SMC11AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC11AHE3/57T 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 1.5SMC11AHE3/57T?
For technical support, including 1.5SMC11AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC11AHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC11AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC11AHE3/57T 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 1.5SMC11AHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC11AHE3/57T?
All 1.5SMC11AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC11AHE3/57T, 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 1.5SMC11AHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC11AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC11AHE3/57T Tags
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