Vishay General Semiconductor - Diodes Division SM15T10CA-M3/9AT
- Part No.:
- SM15T10CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10CA-M3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SM15T10CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 10 V stand-off voltage (VWM), and clamping voltage of 17.0 V at 87.5 A IPPM. It provides robust protection for signal lines and power rails in automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the SM15T10CA-M3/9AT datasheet, SM15T10CA-M3/9AT pinout, SM15T10CA-M3/9AT application, or SM15T10CA-M3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification eligibility (via HM3 suffix), low clamping ratio (VC/VWM = 1.7), and halogen-free RoHS compliance per M3 suffix.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical breakdown (VBR min/max = 11.4 V / 12.6 V at IT = 1.0 mA) and clamping characteristics (VC = 17.0 V at IPPM). Its glass-passivated junction ensures stable leakage (<5.0 μA at VWM) and low thermal resistance (RθJL = 15 °C/W).
Designed for high-energy transients, it sustains 1500 W peak pulse power under 10/1000 μs waveform while maintaining TJ ≤ 150 °C. The SMC package supports automated placement and meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V nominal systems. |
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA - Confirmed bidirectional breakdown threshold; ensures symmetrical turn-on behavior in both directions. |
| VC @ IPPM | 17.0 V at 87.5 A - Clamping voltage under 10/1000 μs surge; limits downstream voltage stress to ≤17 V during lightning or inductive switching events. |
| PPPM | 1500 W - Peak pulse power rating; enables protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges when properly mounted. |
| ID @ VWM | <5.0 μA - Reverse leakage current at 10 V; ensures negligible standby power loss and signal integrity in high-impedance sensor circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint; compatible with standard SMT pick-and-place and reflow profiles. |
Pinout & Package
SM15T10CA-M3/9AT uses a 2-terminal SMC (DO-214AB) package with no polarity marking-bidirectional configuration means both terminals are functionally identical. Device is symmetric; either end may connect to line or ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | Both terminals conduct equally during positive or negative overvoltage events; no cathode band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge immunity requirements up to 4 kV in 2 Ω source impedance configurations. |
| Low clamping ratio (VC/VWM = 1.7) | Minimizes voltage overshoot during clamping-critical for protecting 12 V logic interfaces and CAN transceivers without over-stressing IC inputs. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration standards and EU Directive 2015/863 for restricted substances in industrial and automotive supply chains. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current across temperature cycling and humidity exposure. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., pressure, temperature) in engine control units against load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground to shunt transients before reaching MCU ADC or LIN transceiver input. Use Value: Limits clamped voltage to 17.0 V-well below absolute maximum ratings of typical automotive-grade MCUs (e.g., Infineon AURIX™, NXP S32K) and preserves signal fidelity during 100 ns–1 ms surges. |
Use Scenario: Safeguarding RS-485/RS-422 differential data lines in programmable logic controllers (PLCs) exposed to field wiring surges. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) referenced to local ground, suppressing common-mode transients induced by nearby motor drives or relay switching. Use Value: With 17.0 V clamping and <5 μA leakage, maintains signal integrity on 12 V biased buses while surviving repeated 1 kV/500 A surge events per IEC 61000-4-5. |
| Telecom Power Rail Protection | Consumer USB Interface Protection |
Use Scenario: Guarding 12 V DC input rails of PoE-powered network switches and base stations against lightning-induced surges entering via Ethernet cables. IC Role / Device Role / Timing Role: Primary-level TVS placed upstream of DC-DC converters and EMI filters to absorb bulk surge energy before system-level protection stages. Use Value: 1500 W rating allows handling of full 10/1000 μs surge waveforms without degradation-verified per UL 497B and IEC 61643-31 test protocols. |
Use Scenario: Shielding USB 2.0 D+/D− lines in smart home hubs and set-top boxes from ESD (±15 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ ≈ 300 pF at 0 V) placed directly at connector, minimizing stub length to preserve 480 Mbps signal integrity. Use Value: Clamps ±15 kV HBM ESD pulses to <20 V within <1 ns-meeting IEC 61000-4-2 Level 4 while adding <0.5 dB insertion loss at 240 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA-E3/57T | Lower PPPM (400 W), same VWM (10 V), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy ESD and switching noise in space-constrained consumer PCBs. | Select SMAJ10CA-E3/57T only when board area is critical and surge threat level is ≤1 kV. |
| SMCJ10CA-M3 | Same PPPM (1500 W), identical VWM/VC specs, but M3 suffix applied to base P/N (not delivery code); available in 9AT reel but not identical ordering format | No functional difference; identical electrical and thermal performance; differs only in packaging nomenclature and traceability coding. | SMCJ10CA-M3 is a direct functional match-verify reel quantity (3500 pcs) and tape width compatibility before substitution. |
Compared with SMAJ10CA-E3/57T, SM15T10CA-M3/9AT delivers 275 % more surge energy handling in the same mounting area; versus SMCJ10CA-M3, it offers identical protection performance but with enhanced logistics traceability via /9AT delivery code and halogen-free compliance explicitly encoded in the suffix.
Availability
SM15T10CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom power rail hardening requiring stable component supply and long-term lifecycle support.
Supply support for SM15T10CA-M3/9AT 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, ruggedness, and application-specific optimization for harsh environments.
The SM15T Series was developed specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure-targeting IEC 61000-4-5 compliance and AEC-Q101 qualification readiness.
FAQ
What does the "CA" suffix indicate in SM15T10CA-M3/9AT?
The "CA" suffix denotes a bidirectional configuration-meaning SM15T10CA-M3/9AT clamps voltage transients of either polarity symmetrically, unlike unidirectional variants (e.g., SM15T10A) that only protect against reverse-biased surges. This makes SM15T10CA-M3/9AT ideal for AC-coupled lines or differential buses where polarity reversal is possible.
Is SM15T10CA-M3/9AT AEC-Q101 qualified?
SM15T10CA-M3/9AT itself is not AEC-Q101 qualified; however, the SM15T10CA-HM3_X variant (e.g., SM15T10CAHM3_A/I) carries the HM3 suffix and explicit AEC-Q101 qualification. The M3 suffix in SM15T10CA-M3/9AT confirms halogen-free and RoHS compliance but does not imply automotive qualification.
What is the clamping voltage of SM15T10CA-M3/9AT at its rated peak pulse current?
The clamping voltage VC of SM15T10CA-M3/9AT is 17.0 V measured at IPPM = 87.5 A under the standard 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88380, Rev. 09-Jan-2024) and reflects worst-case conduction behavior during surge events.
Can SM15T10CA-M3/9AT be used in place of a unidirectional TVS like SM15T10A?
SM15T10CA-M3/9AT can replace SM15T10A only in circuits where bidirectional clamping is acceptable and required-such as AC signal paths or floating grounds. In DC-biased unidirectional applications (e.g., 12 V supply rail to ground), using SM15T10CA-M3/9AT introduces unnecessary conduction during normal forward bias and may compromise efficiency or cause latch-up.
What does the "/9AT" in SM15T10CA-M3/9AT signify?
The "/9AT" denotes the packaging configuration: 13-inch diameter plastic tape and reel containing 3500 units. This delivery format ensures compatibility with high-volume SMT assembly lines and supports traceability through Vishay's reel labeling standards. It is distinct from /57T (7-inch reel, 850 units) and does not affect electrical performance.
SM15T10CA-M3/9AT 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:
- -
- 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)
SM15T10CA-M3/9AT FAQ
1.How can I place an order for SM15T10CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10CA-M3/9AT 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 SM15T10CA-M3/9AT reliable?
The price and inventory of SM15T10CA-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T10CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10CA-M3/9AT?
SM15T10CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10CA-M3/9AT 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 SM15T10CA-M3/9AT?
For technical support, including SM15T10CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10CA-M3/9AT requirements.
6.How does Aetrix verify that SM15T10CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T10CA-M3/9AT 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 SM15T10CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T10CA-M3/9AT?
All SM15T10CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10CA-M3/9AT, 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 SM15T10CA-M3/9AT part is unused and in its original packaging.
Return procedure for SM15T10CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10CA-M3/9AT Tags

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