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Vishay General Semiconductor - Diodes Division 1.5SMC10CA-M3/57T
- Part No.:
- 1.5SMC10CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10CA-M3/57T.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,578
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Product details
Overview
1.5SMC10CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 10 V standoff voltage (VWM), 14.5 V clamping voltage (VC) at 103 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC10CA-M3/57T datasheet, 1.5SMC10CA-M3/57T pinout, 1.5SMC10CA-M3/57T application, or 1.5SMC10CA-M3/57T equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance (enabling precise voltage limiting), MSL Level 1 reflow compatibility, halogen-free RoHS compliance (M3 suffix), and DO-214AB package thermal performance under repetitive transients.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior for positive and negative transients - critical for AC-coupled or floating signal paths. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repeated surge stress.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads. Its 10/1000 μs waveform response supports IEC 61000-4-5 surge immunity up to Level 4 when properly laid out.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before significant leakage; defines safe operating DC bias margin. |
| VBR (Breakdown Voltage) | 10.5 V min / 11.6 V max at 1 mA - Ensures consistent avalanche initiation across production lots. |
| VC (Clamping Voltage) | 14.5 V at 103 A IPPM - Limits transient voltage seen by downstream ICs to ≤14.5 V during 10/1000 μs surges. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy lightning-induced transients without failure under defined test conditions. |
| ID (Max Reverse Leakage) | 10 μA at VWM - Minimizes standby power loss and avoids false triggering in low-current circuits. |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| Package | SMC (DO-214AB) - Surface-mount package with 7.75 mm × 6.22 mm footprint and 2.62 mm height; optimized for automated placement and thermal dissipation. |
Pinout & Package
Package: SMC (DO-214AB), bidirectional - no polarity marking; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; forms symmetrical clamping path across protected line. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and ungrounded power rails without polarity concerns. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (e.g., 2 Ω source impedance, 1 kV) without degradation. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without moisture-induced failure - eliminates bake requirements pre-assembly. |
| Halogen-free & RoHS-compliant (M3) | Fulfills strict environmental compliance for automotive and industrial OEMs requiring substance-of-concern declarations. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during fast transients, protecting 12 V logic interfaces and CAN transceivers. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting 5 V or 12 V analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing ±100 V transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to precision ADC front-ends while maintaining signal integrity below 14.5 V clamping threshold. |
Use Scenario: Safeguarding RS-485 transceiver pins (A/B) against ESD (IEC 61000-4-2) and surge (IEC 61000-4-5) in factory automation PLCs. IC Role / Device Role / Timing Role: Differential-line TVS mounted across A–B and to ground, suppressing common-mode and differential-mode transients simultaneously. Use Value: Maintains bus communication integrity during 4 kV contact ESD events and 1 kV surge tests without data corruption or reset. |
| Telecom Line Interface | DC Power Rail Protection |
|
Use Scenario: Shielding Ethernet PHY or DSL line drivers from lightning-induced surges on outdoor-facing telecom ports. IC Role / Device Role / Timing Role: Primary-level TVS on twisted-pair inputs, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: Clamps induced voltages to <15 V before reaching PHY ICs, meeting GR-1089-CORE Level 3 surge requirements. |
Use Scenario: Guarding 12 V auxiliary power rails in medical devices and embedded controllers against inductive switching spikes. IC Role / Device Role / Timing Role: Low-leakage (10 μA) bidirectional clamp placed directly at power entry point before LDO or DC/DC converter input. Use Value: Blocks >100 V transients while drawing negligible quiescent current - preserving battery life and system uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Same VWM (10 V) and bidirectional configuration, but lower PPPM (600 W); SMB package (smaller footprint, higher RθJA). | Limited to lower-energy transients (e.g., ESD-only); unsuitable for IEC 61000-4-5 Level 4 surge. | Select when board space is constrained and surge energy is ≤600 W - verify thermal margin on 5.3 mm × 4.6 mm pad layout. |
| 1.5KE10CA | Through-hole DO-15 package; identical electrical specs (VWM = 10 V, VC = 14.5 V), but no MSL Level 1 or halogen-free rating. | Not suitable for automated SMT lines; requires wave soldering and lacks reflow compatibility for mixed-technology boards. | Choose only for legacy through-hole designs or prototyping where SMT assembly is unavailable. |
Compared with SMBJ10CA and 1.5KE10CA, the 1.5SMC10CA-M3/57T delivers superior surge handling (1500 W vs. 600 W or 1500 W with inferior thermal packaging), full SMT process support (MSL 1, 260 °C), and halogen-free compliance - making it the preferred choice for volume automotive and industrial production.
Availability
1.5SMC10CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interface hardening, and telecom line surge suppression requiring stable component supply, full traceability, and long-term lifecycle continuity.
Supply support for 1.5SMC10CA-M3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and application-specific performance.
The 1.5SMC Series was engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against lightning, ESD, and inductive switching is non-negotiable.
FAQ
What is the clamping voltage of the 1.5SMC10CA-M3/57T under a 10/1000 μs surge?
The 1.5SMC10CA-M3/57T 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 per JEDEC standards and guarantees that downstream circuitry sees no more than 14.5 V during standardized surge events - critical for protecting 12 V logic and interface ICs. The 1.5SMC10CA-M3/57T maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is the 1.5SMC10CA-M3/57T suitable for automotive applications?
Yes - the 1.5SMC10CA-M3/57T is halogen-free, RoHS-compliant, and qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes. While the M3/57T variant is commercial-grade, its 150 °C TJ max, MSL Level 1 reflow rating, and robust 1500 W surge capability make it widely adopted in automotive subsystems such as body control modules and sensor interfaces. For formal automotive qualification, specify 1.5SMC10CAHM3_X (e.g., HM3_A/H).
How does the bidirectional design of the 1.5SMC10CA-M3/57T affect PCB layout?
The 1.5SMC10CA-M3/57T has no polarity marking and functions identically in either orientation - simplifying layout and eliminating risk of reverse installation. Engineers place it symmetrically across protected lines (e.g., between signal and ground, or across differential pairs), using minimum 8.0 mm × 8.0 mm copper pads per terminal to meet thermal and surge current requirements. No silkscreen polarity indicator is needed for the 1.5SMC10CA-M3/57T.
What is the maximum reverse leakage current for the 1.5SMC10CA-M3/57T at its stand-off voltage?
The 1.5SMC10CA-M3/57T specifies a maximum reverse leakage current (ID) of 10 μA at its 10 V stand-off voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal impact on battery-powered or high-impedance sensor circuits. Leakage remains below 50 μA up to 85 °C, supporting reliable operation in industrial temperature ranges without compromising system power budget.
Does the 1.5SMC10CA-M3/57T require external heat sinking?
No - the 1.5SMC10CA-M3/57T is designed for operation with standard PCB copper pads: 0.31" × 0.31" (8.0 mm × 8.0 mm) per terminal provides sufficient thermal conduction to dissipate 6.5 W continuously and handle 1500 W transient pulses. Additional heat sinking is unnecessary unless ambient temperatures exceed 100 °C or duty cycles increase beyond the 0.01 % repetitive rate specified in the datasheet. The 1.5SMC10CA-M3/57T's RθJA of 75 °C/W is validated under this pad layout.
1.5SMC10CA-M3/57T 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:
- -
- Bidirectional Channels:
- 1
- 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)
1.5SMC10CA-M3/57T FAQ
1.How can I place an order for 1.5SMC10CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10CA-M3/57T 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 1.5SMC10CA-M3/57T reliable?
The price and inventory of 1.5SMC10CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC10CA-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC10CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10CA-M3/57T?
1.5SMC10CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10CA-M3/57T 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 1.5SMC10CA-M3/57T?
For technical support, including 1.5SMC10CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10CA-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC10CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10CA-M3/57T 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 1.5SMC10CA-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC10CA-M3/57T?
All 1.5SMC10CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10CA-M3/57T, 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 1.5SMC10CA-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC10CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC10CA-M3/57T Tags
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