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Vishay General Semiconductor - Diodes Division 1.5SMC110A-E3/57T
- Part No.:
- 1.5SMC110A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110A-E3/57T.pdf
- Description:
- TVS DIODE 94VWM 152VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,827
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Product details
Overview
1.5SMC110A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 110 V breakdown voltage (VBR = 105–116 V at IT = 1.0 mA), 94.0 V maximum stand-off voltage (VWM), and clamps transients to ≤152 V at 9.9 A peak pulse current (IPPM) under 10/1000 μs waveform - enabling protection of 12–48 V industrial control, automotive sensor interfaces, and DC power rails.
For engineers reviewing the 1.5SMC110A-E3/57T datasheet, 1.5SMC110A-E3/57T pinout, 1.5SMC110A-E3/57T application, or 1.5SMC110A-E3/57T equivalent, this device delivers verified 1500 W peak pulse power capability, low incremental surge resistance, and AEC-Q101 qualification readiness (via HE3/HM3 variants), supporting design-in for automotive-grade ESD and lightning surge immunity where unidirectional clamping and SMC (DO-214AB) footprint compatibility are required.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (94.0 V), it avalanches near VBR (105–116 V) and limits transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at VWM), while thermal resistance RθJA = 75 °C/W supports operation up to TJ = +150 °C on standard 8.0 mm × 8.0 mm copper pads.
The device complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) immunity requirements when applied per recommended PCB layout. Its fast response time (<1.0 ns) and low clamping ratio (VC/VBR ≈ 1.45) minimize stress on downstream MOSFETs, ICs, and communication transceivers during repetitive 0.01% duty-cycle surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at IT = 1.0 mA - defines precise avalanche onset range for reliable triggering without premature conduction. |
| VWM | 94.0 V - maximum continuous reverse operating voltage; ensures no conduction during normal 12–48 V system operation. |
| VC @ IPPM | ≤152 V at 9.9 A (10/1000 μs) - clamping voltage directly determines protected circuit's maximum transient stress level. |
| PPPM | 1500 W - peak pulse power rating enables handling of high-energy lightning-induced surges per IEC 61000-4-5 Level 4. |
| IPPM | 9.9 A - peak pulse current capacity defines maximum surge energy (≈1.5 J) the device can safely absorb per event. |
| TJ max. | +150 °C - junction temperature limit allows use in under-hood automotive and industrial environments without derating. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 0.320" × 0.246" footprint and matte tin-plated leads for J-STD-002 solderability. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case meeting UL 94 V-0 flammability rating; cathode indicated by band on body; terminals are matte tin-plated for lead-free reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; grounded reference in unidirectional TVS configuration | Connected to system ground or low-impedance return path to enable effective clamping of positive transients on the protected line. |
| Cathode | Current exit point in forward bias; connected to protected line in unidirectional TVS | Placed in series with the input/power/signal line to be protected; avalanche conduction occurs when line voltage exceeds VWM relative to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 Level 4 (4 kV line-to-ground) in compact SMC package without external heat sinking. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<1.0 μA) across temperature and lifetime, critical for battery-powered or always-on systems. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during surge events, protecting 3.3 V/5 V logic interfaces and sensitive analog front-ends downstream. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns, eliminating bake requirements before assembly. |
| AEC-Q101 qualification option (HE3/HM3) | Validates reliability for automotive applications including engine control modules, ADAS sensors, and infotainment power supplies. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs of automotive body control modules (BCM) against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and chassis ground to clamp voltage spikes above 94 V before they reach LDOs and microcontrollers. Use Value: Withstands 1500 W surges and clamps to ≤152 V, preventing latch-up or permanent damage to 32-bit MCUs and CAN transceivers operating at 24 V nominal. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers (PLCs) connected to 24 V field sensors exposed to inductive switching noise. IC Role / Device Role / Timing Role: TVS mounted at connector interface to suppress fast-rising transients (dV/dt > 100 V/ns) induced by solenoid valve switching. Use Value: Sub-1 ns response and 9.9 A IPPM capability ensure transient energy is diverted before reaching optocoupler input stages, preserving signal integrity and longevity. |
| DC-DC Converter Input Stage | Telecom Power Supply Surge Protection |
|
Use Scenario: Front-end overvoltage protection for isolated 48 V input DC-DC converters used in server PSUs and telecom rectifiers. IC Role / Device Role / Timing Role: Primary clamping element on the high-side input rail, coordinated with upstream fuses and common-mode chokes. Use Value: 1500 W PPPM and 152 V VC allow safe absorption of 10/1000 μs surges up to 4 kV, maintaining converter uptime during grid disturbances. |
Use Scenario: Secondary-side transient suppression on -48 V telecom distribution boards subject to lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, placed after DC-DC isolation to protect downstream PMICs and FPGAs. Use Value: Low leakage (<1.0 μA) prevents standby current drain; 110 V VBR provides margin above -48 V nominal while avoiding false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A (Bourns) | Same VBR range (105–116 V), but SMB package (smaller footprint, lower PPPM = 600 W) | Limited to lower-energy transients (e.g., ESD/EFT); unsuitable for IEC 61000-4-5 Level 4 surge | Select only if board space is constrained and surge threat level is ≤1 kV; verify thermal performance with RθJA = 110 °C/W. |
| SMCJ110A (Littelfuse) | Identical SMC (DO-214AB) package, same VBR/VC, but rated for 1500 W with tighter VC tolerance (150 V max vs. 152 V) | Direct functional replacement with identical PCB layout; certified to AEC-Q101 in HM3 variant | Drop-in alternative if dual-sourcing is required; confirm tape-and-reel packaging (57T vs. 57R) matches production line feeders. |
Compared with 1.5SMC110A-E3/57T, SMBJ110A offers space savings at the cost of surge robustness, while SMCJ110A provides identical protection performance and mechanical fit - making it the preferred second-source for high-reliability 24–48 V systems requiring validated automotive qualification paths.
Availability
1.5SMC110A-E3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial PLC input conditioning, and telecom DC-DC converter input stage designs requiring stable component supply, RoHS-compliant manufacturing, and consistent SMC (DO-214AB) form factor.
Supply support for 1.5SMC110A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for high-power transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems where robustness against lightning, EFT, and load-dump events is non-negotiable.
FAQ
What is the maximum clamping voltage of the 1.5SMC110A-E3/57T under a 10/1000 μs surge?
The 1.5SMC110A-E3/57T has a maximum clamping voltage (VC) of 152 V when subjected to its rated peak pulse current of 9.9 A under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and defines the upper voltage limit imposed on the protected circuit during worst-case surge conditions. Designers must ensure downstream components have sufficient voltage margin above this clamping level.
Is the 1.5SMC110A-E3/57T suitable for automotive applications?
The 1.5SMC110A-E3/57T itself is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes like 1.5SMC110AHE3_A. While the -E3/57T variant is not AEC-Q101 certified, its construction - including glass-passivated junction and MSL Level 1 rating - supports automotive use in non-safety-critical subsystems when validated per customer requirements. For full qualification, specify the HE3 or HM3 suffix.
What is the reverse leakage current of the 1.5SMC110A-E3/57T at its stand-off voltage?
At the maximum stand-off voltage (VWM) of 94.0 V and ambient temperature of 25 °C, the 1.5SMC110A-E3/57T exhibits a maximum reverse leakage current (ID) of 1.0 μA. This low leakage ensures minimal power loss in always-on circuits and avoids false triggering in high-impedance sensing nodes, making it suitable for battery-backed and low-quiescent-current applications.
How does the thermal resistance of the 1.5SMC110A-E3/57T affect its power dissipation capability?
The 1.5SMC110A-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads. This means that at 25 °C ambient, the device can dissipate up to 6.5 W continuously (PD rating) before reaching its 150 °C maximum junction temperature. Derating is required above 25 °C ambient per Figure 2 in the datasheet to maintain reliability.
Can the 1.5SMC110A-E3/57T be used in bidirectional configurations?
No - the 1.5SMC110A-E3/57T is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires a part with "CA" suffix (e.g., 1.5SMC110CA). Using the 1.5SMC110A-E3/57T in reverse-biased configurations will result in forward conduction (~1.0 V drop) rather than symmetrical clamping, compromising protection integrity on AC or floating signal lines.
1.5SMC110A-E3/57T 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- 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)
1.5SMC110A-E3/57T FAQ
1.How can I place an order for 1.5SMC110A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110A-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 1.5SMC110A-E3/57T reliable?
The price and inventory of 1.5SMC110A-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 1.5SMC110A-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC110A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110A-E3/57T?
1.5SMC110A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110A-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 1.5SMC110A-E3/57T?
For technical support, including 1.5SMC110A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110A-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC110A-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110A-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 1.5SMC110A-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC110A-E3/57T?
All 1.5SMC110A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110A-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 1.5SMC110A-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC110A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110A-E3/57T Tags
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