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Vishay General Semiconductor - Diodes Division SM15T7V5CAHM3/I
- Part No.:
- SM15T7V5CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5CAHM3/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,314
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Product details
Overview
SM15T7V5CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 7.13–7.88 V breakdown voltage at 10 mA, and 11.3 V maximum clamping voltage at 132 A peak pulse current. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T7V5CAHM3/I datasheet, SM15T7V5CAHM3/I pinout, SM15T7V5CAHM3/I application, or SM15T7V5CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.49), halogen-free RoHS compliance, and SMC package suitability for high-reliability automated assembly.
Technical Context
The SM15T7V5CAHM3/I employs a glass-passivated silicon junction optimized for fast response to transient overvoltages with minimal parasitic inductance. Its bidirectional architecture enables symmetrical clamping in both polarities without external polarity management.
Designed for high-energy threat suppression, it sustains 1500 W peak pulse power under 10/1000 μs waveform while maintaining clamping voltage ≤11.3 V at 132 A IPPM. Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - supports robust protection against lightning surges and inductive switching events |
| Breakdown Voltage VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines precise conduction threshold for bidirectional clamping |
| Stand-off Voltage VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 μA |
| Maximum Clamping Voltage VC | 11.3 V at 132 A IPPM - ensures downstream ICs see <12 V during worst-case surge |
| Operating Temperature Range | −65 °C to +150 °C - validated for under-hood automotive and industrial ambient conditions |
| Package | SMC (DO-214AB) - surface-mount footprint compatible with IPC-7351B standard, MSL Level 1 |
| AEC-Q101 Qualified | Yes - qualified per stress test requirements for automotive electronic components |
| Halogen-Free & RoHS | Yes - HM3 suffix denotes halogen-free, lead-free, RoHS-compliant construction |
Pinout & Package
SM15T7V5CAHM3/I uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, 0.305" × 0.220" body, cathode band omitted (bidirectional device). Mounting requires 8.0 mm × 8.0 mm copper pads per terminal per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | No polarity marking; either terminal serves as input/output for clamping in both directions |
| Case | Thermal and mechanical interface | Non-electrical; provides thermal conduction path to PCB copper and mechanical mounting stability |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 Level 4 (4 kV) surges on industrial I/O lines |
| Low clamping voltage (11.3 V @ 132 A) | Reduces stress on 5 V and 3.3 V logic interfaces by limiting transient overshoot below 12 V |
| AEC-Q101 qualified (HM3 suffix) | Validates reliability for automotive applications including engine control modules and ADAS sensor interfaces |
| Halogen-free, RoHS-compliant construction | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements |
| MSL Level 1, 260 °C reflow capable | Supports standard lead-free SMT assembly without pre-baking or special handling |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to shunt transient energy before reaching sensitive analog front-end or transceiver ICs. Use Value: Prevents latch-up or permanent damage in AEC-Q100 Grade 2 ICs by clamping transients to ≤11.3 V while surviving >1000 surges per ISO 7637-2. |
Use Scenario: Shielding digital input modules in programmable logic controllers from induced surges on 24 V DC field wiring connected to solenoids and contactors. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at connector entry point, operating in parallel with upstream fuse and downstream optocoupler isolation. Use Value: Maintains system uptime by preventing false triggering or destruction of microcontroller GPIO pins during 1 kV/500 A surge events per IEC 61000-4-4. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHYs and PoE controllers in network switches subjected to lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) primary protection, providing low-clamp refinement for fast-rising transients. Use Value: Limits residual voltage to <12 V at 100 A, ensuring IEEE 802.3af/at compliance and preventing PHY reset or data corruption. |
Use Scenario: Suppressing line-side transients in AC-DC adapters for smart home devices, where EMI filters alone cannot handle high-energy surges. IC Role / Device Role / Timing Role: First-line transient suppressor across bridge rectifier output or bulk capacitor input, absorbing energy before it reaches PWM controller IC. Use Value: Extends adapter lifetime by eliminating catastrophic failure modes in 5 V/12 V secondary-side regulation circuits during 1.2/50 μs surge tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ7.5CA | Same SMC package, 7.5 V nominal VWM, 11.3 V VC at 132 A, but not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial use only | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
| ON Semiconductor 1.5KE7.5CA | Higher package invariance (DO-201AD), 7.5 V VWM, 12.9 V VC at 116 A, 1500 W rating, no AEC-Q101 | Through-hole mounting; lower surge current density due to higher clamping voltage | Choose only for legacy through-hole designs or where SMC footprint is incompatible |
Compared with SMAJ7.5CA and 1.5KE7.5CA, SM15T7V5CAHM3/I delivers identical clamping performance with verified AEC-Q101 qualification and halogen-free compliance-critical for new automotive designs requiring full PPAP documentation and material traceability.
Availability
SM15T7V5CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor systems, industrial PLC I/O modules, telecom line interfaces, and consumer power adapter designs requiring stable component supply, long-term lifecycle support, and full compliance documentation.
Supply support for SM15T7V5CAHM3/I 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, TVS devices, and MOSFETs with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SM15T Series was engineered specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where 1500 W surge handling and AEC-Q101 validation are mandatory.
FAQ
What does the "HM3" suffix indicate in SM15T7V5CAHM3/I?
The HM3 suffix in SM15T7V5CAHM3/I specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms compliance with JESD201 Class 2 whisker resistance, MSL Level 1 reflow capability up to 260 °C, and automotive-grade reliability testing per stress test conditions defined in the Vishay SM15T7V5CAHM3/I datasheet.
Is SM15T7V5CAHM3/I unidirectional or bidirectional?
SM15T7V5CAHM3/I is a bidirectional transient voltage suppressor, indicated by the "CA" suffix. It provides symmetrical clamping in both polarities with identical breakdown (7.13–7.88 V) and clamping (11.3 V) characteristics, eliminating the need for polarity-aware PCB layout or orientation during placement.
What is the maximum clamping voltage for SM15T7V5CAHM3/I under surge conditions?
The maximum clamping voltage for SM15T7V5CAHM3/I is 11.3 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 132 A. This value is measured per Figure 1 and Table 1 in the Vishay SM15T7V5CAHM3/I datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Does SM15T7V5CAHM3/I require heatsinking for standard operation?
SM15T7V5CAHM3/I does not require external heatsinking under typical surge duty cycles. Its thermal resistance is 75 °C/W (junction-to-ambient) when mounted on 8.0 mm × 8.0 mm copper pads. Continuous power dissipation is limited to 6.5 W; transient surges are non-repetitive and self-limiting due to the device's voltage-clamping behavior.
How does SM15T7V5CAHM3/I compare to SM15T7V5A in terms of automotive qualification?
SM15T7V5CAHM3/I is AEC-Q101 qualified and halogen-free (HM3), whereas SM15T7V5A is unqualified commercial-grade (E3/M3). The HM3 suffix in SM15T7V5CAHM3/I certifies full automotive stress testing-including temperature cycling, HTRB, and ESD-making it suitable for engine bay and ADAS applications where SM15T7V5A would not be approved.
SM15T7V5CAHM3/I 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 132A
- 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 (SMC)
SM15T7V5CAHM3/I FAQ
1.How can I place an order for SM15T7V5CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5CAHM3/I 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 SM15T7V5CAHM3/I reliable?
The price and inventory of SM15T7V5CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM15T7V5CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5CAHM3/I?
SM15T7V5CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5CAHM3/I 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 SM15T7V5CAHM3/I?
For technical support, including SM15T7V5CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5CAHM3/I requirements.
6.How does Aetrix verify that SM15T7V5CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM15T7V5CAHM3/I 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 SM15T7V5CAHM3/I meets industry standards.
7.What is the process for return or replacement of SM15T7V5CAHM3/I?
All SM15T7V5CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5CAHM3/I, 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 SM15T7V5CAHM3/I part is unused and in its original packaging.
Return procedure for SM15T7V5CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T7V5CAHM3/I Tags
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