My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC11A-E3/57T
- Part No.:
- 1.5SMC11A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC11A-E3/57T.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,080
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC11A-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 11 V breakdown voltage (VBR = 10.5–11.6 V at 1 mA), 9.4 V stand-off voltage (VWM), 15.6 V clamping voltage (VC) at 96.2 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and DC power rail surge suppression.
For engineers reviewing the 1.5SMC11A-E3/57T datasheet, 1.5SMC11A-E3/57T pinout, 1.5SMC11A-E3/57T application, or 1.5SMC11A-E3/57T equivalent, key selection criteria include clamping performance under 100 A surge, thermal resistance (RθJA = 75 °C/W), RoHS-compliant SMC (DO-214AB) packaging, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
The 1.5SMC11A-E3/57T operates as a unidirectional avalanche diode with glass-passivated junction, delivering fast response (<1 ps) to transient events such as ESD, lightning-induced surges, and inductive switching spikes. Its low incremental surge resistance ensures minimal voltage overshoot during high-current transients.
Designed for surface-mount assembly on standard 8.0 mm × 8.0 mm copper pads, it supports repetitive 0.01% duty cycle pulses and meets J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C). Polarity is marked by cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V at 1 mA - defines precise avalanche initiation threshold for reliable triggering |
| VWM | 9.4 V - maximum continuous reverse operating voltage before leakage exceeds 5 µA |
| VC @ IPPM | 15.6 V at 96.2 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak pulse power handling capacity under standardized surge waveform |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, critical for derating above 25 °C |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms half-sine), supporting inrush tolerance |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 compliant molding compound. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to protected circuit ground or low-side reference; conducts during reverse-biased clamping |
| Cathode | Avalanche voltage reference / clamping node | Connected to line being protected; establishes VWM and VBR relative to anode potential |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables protection against severe lightning-induced surges per IEC 61000-4-5 Level 4 without cascaded stages |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage exposure to downstream ICs like microcontrollers and CAN transceivers |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking, reducing manufacturing overhead in high-volume SMT lines |
| Glass-passivated junction | Ensures stable VBR and low leakage (<5 µA at VWM) across temperature and lifetime |
| RoHS-compliant, halogen-free option available | Supports environmental compliance for automotive and industrial end-equipment certifications |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting 5 V or 12 V analog/digital sensor lines (e.g., pressure, temperature) from load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and chassis ground to clamp negative-going transients and suppress positive spikes. Use Value: Limits voltage excursion to ≤15.6 V during 96.2 A surge, preserving ADC input integrity and preventing latch-up in signal conditioning ICs. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff device mounted at connector entry point to shunt energy before reaching optocoupler or Schmitt trigger input stage. Use Value: Withstands 1500 W pulses while maintaining <5 µA leakage at 9.4 V, ensuring stable logic thresholds and long-term reliability in harsh factory environments. |
| DC Power Rail Protection | USB/Serial Communication Line |
Use Scenario: Secondary overvoltage protection on 12 V or 24 V board-level power distribution networks downstream of primary DC/DC converters. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing residual transients that bypass bulk capacitance and ferrite filters. Use Value: Clamps to 15.6 V within nanoseconds, preventing damage to PMICs, LDOs, and microcontroller VCC pins during hot-swap or cable discharge events. |
Use Scenario: ESD and surge protection for RS-232, RS-485, or USB VBUS lines in embedded gateways and edge devices. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to local ground, placed adjacent to connector to minimize trace inductance. Use Value: Achieves <1 ns response and 15.6 V clamping, meeting IEC 61000-4-2 Level 4 (±15 kV contact) without compromising signal rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Lower peak power (600 W), same VBR range, SMB package (smaller footprint, higher RθJA) | Preferred for space-constrained consumer electronics where 600 W surge margin suffices | Select when board area is limited and surge threat level is moderate (IEC 61000-4-5 Level 2) |
| 1.5KE11A | Through-hole DO-201 package, identical electrical specs but incompatible mounting and thermal profile | Suitable for legacy designs or prototyping with breadboard/perfboard; not for automated SMT | Choose only for manual assembly or repair scenarios requiring pin-compatible through-hole replacement |
Compared with SMBJ11A and 1.5KE11A, the 1.5SMC11A-E3/57T delivers 2.5× higher surge power in an SMT-optimized package with superior thermal dissipation (RθJA = 75 °C/W vs. >100 °C/W for SMBJ), making it preferred for automotive and industrial applications demanding repeatable 1500 W pulse handling.
Availability
1.5SMC11A-E3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and DC power rail surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC11A-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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and AEC-Q qualification.
The 1.5SMC Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure, engineered for robustness under repetitive surge stress and extended temperature operation.
FAQ
What is the clamping voltage of the 1.5SMC11A-E3/57T under maximum rated surge current?
The 1.5SMC11A-E3/57T clamps to 15.6 V at its peak pulse current (IPPM) of 96.2 A, measured with a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet (Document Number 88303, Rev. 09-Mar-2026) and reflects worst-case voltage seen by protected circuitry during standardized surge testing. The 1.5SMC11A-E3/57T maintains this clamping performance across its specified operating temperature range.
Is the 1.5SMC11A-E3/57T RoHS-compliant and lead-free?
Yes, the 1.5SMC11A-E3/57T carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and exemption 7a. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE, and uses matte tin-plated leads solderable per J-STD-002. The 1.5SMC11A-E3/57T also meets JESD 201 Class 2 whisker resistance requirements.
Does the 1.5SMC11A-E3/57T have AEC-Q101 qualification?
The base 1.5SMC11A-E3/57T is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the functionally identical 1.5SMC11AHE3_A variant (with HE3 suffix) which is fully AEC-Q101 qualified for automotive applications. The 1.5SMC11A-E3/57T shares the same die, package, and electrical characteristics - only the test certification and traceability differ.
What is the maximum operating temperature for the 1.5SMC11A-E3/57T?
The 1.5SMC11A-E3/57T has a maximum junction temperature (TJ) of +150 °C and an operating storage temperature range of –65 °C to +150 °C. Derating begins above 25 °C ambient per Figure 2 in the datasheet, with power dissipation reduced linearly to zero at 150 °C case temperature. This enables use in under-hood automotive and high-temperature industrial enclosures.
How does the 1.5SMC11A-E3/57T compare to bidirectional TVS diodes like 1.5SMC11CA?
The 1.5SMC11A-E3/57T is unidirectional and protects against positive transients only (cathode-to-anode), requiring correct polarity installation. In contrast, 1.5SMC11CA is bidirectional with symmetric clamping in both directions - suitable for AC lines or differential signals. The 1.5SMC11A-E3/57T offers lower leakage (<5 µA at 9.4 V) and slightly tighter VBR tolerance than its bidirectional counterpart, making it preferable for DC rail protection where polarity is fixed.
1.5SMC11A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC11A-E3/57T FAQ
1.How can I place an order for 1.5SMC11A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC11A-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 1.5SMC11A-E3/57T reliable?
The price and inventory of 1.5SMC11A-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 1.5SMC11A-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC11A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC11A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC11A-E3/57T?
1.5SMC11A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC11A-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 1.5SMC11A-E3/57T?
For technical support, including 1.5SMC11A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC11A-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC11A-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC11A-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 1.5SMC11A-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC11A-E3/57T?
All 1.5SMC11A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC11A-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 1.5SMC11A-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC11A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC11A-E3/57T Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
