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Vishay General Semiconductor - Diodes Division 1.5SMC7.5CAHE3/9AT
- Part No.:
- 1.5SMC7.5CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5CAHE3/9AT.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,068
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Product details
Overview
1.5SMC7.5CAHE3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V maximum clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the 1.5SMC7.5CAHE3/9AT datasheet, 1.5SMC7.5CAHE3/9AT pinout, 1.5SMC7.5CAHE3/9AT application, or 1.5SMC7.5CAHE3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.77), thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical bidirectional avalanche behavior - no polarity marking required. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD and lightning-induced transients per IEC 61000-4-2/4-5.
Rated for -65 °C to +150 °C operating junction temperature, it delivers 1500 W peak pulse power under 0.01 % duty cycle, derated linearly above 25 °C ambient per Fig. 2. The SMC package meets UL 94 V-0 and J-STD-020 MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.40 V - Maximum reverse working voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (min) | 7.13 V at 10 mA - Minimum breakdown voltage ensures reliable avalanche initiation during overvoltage events. |
| VC | 11.3 V at 133 A - Clamped voltage seen by protected circuit; limits stress on downstream ICs like microcontrollers or CAN transceivers. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 µs waveform; supports high-energy transient suppression without failure. |
| IPPM | 133 A - Peak pulse current capacity; determines survivability against 8/20 µs lightning surges per IEC 61000-4-5. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures. |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient; informs heatsinking requirements when operating near PD = 6.5 W limit. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration - no cathode/anode 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 polarity sensitivity in circuit layout. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; enables placement without orientation check during automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces. |
| 1500 W peak pulse power | Withstands repeated 10/1000 µs transients up to 133 A without degradation - suitable for industrial power supply input stages. |
| Low clamping ratio (VC/VWM = 1.77) | Minimizes voltage overshoot across protected ICs, reducing risk of latch-up or gate oxide damage in MOSFET drivers. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT reflow profiles without preconditioning or baking. |
| Glass-passivated junction | Ensures stable leakage performance (<500 µA at VWM) and long-term reliability under thermal cycling. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., temperature, pressure) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor line and ground, responding within <1 ns to suppress transients exceeding 6.4 V. Use Value: Prevents false triggering and permanent damage to 3.3 V/5 V signal-conditioning amplifiers and ADC inputs. |
Use Scenario: Shielding digital input channels of programmable logic controllers from induced surges on factory floor wiring. IC Role / Device Role / Timing Role: Standoff voltage (6.4 V) aligns with 24 V DC industrial logic thresholds; clamps >100 V spikes to safe levels. Use Value: Eliminates need for external series impedance or RC filtering while maintaining signal integrity at 1 kHz switching rates. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-side transient protection on Ethernet PHY power rails and data lines exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS placed across VDD/GND pins of Ethernet magnetics or PoE controller ICs. Use Value: Maintains immunity to ±8 kV contact ESD (IEC 61000-4-2) without affecting 100 MHz signal bandwidth due to low junction capacitance (~500 pF). |
Use Scenario: Input-stage surge suppression in AC-DC adapters for smart home devices subjected to mains-borne transients. IC Role / Device Role / Timing Role: First-line defense upstream of bridge rectifier and bulk capacitor; absorbs 1500 W energy from 6 kV/3 kA surges. Use Value: Enables compliance with UL 1449 Type 3 SPD requirements while fitting compact SMC footprint on primary-side PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Lower peak power (600 W), smaller SMB package (DO-214AA), higher RθJA (110 °C/W) | Limited to lower-energy transients; unsuitable for 10/1000 µs lightning surges requiring >1000 W handling. | Select when board space is constrained and surge threat level is limited to ESD-only environments. |
| 1.5KE7.5CA | Through-hole TO-204AE (DO-41) package, same electrical specs but incompatible with SMT assembly. | Requires manual or wave soldering; not viable for high-volume automated production or compact PCB layouts. | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ7.5CA and 1.5KE7.5CA, the 1.5SMC7.5CAHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W pulse rating, and SMC package - enabling automotive-grade robustness in surface-mount production without layout or process compromise.
Availability
1.5SMC7.5CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and full traceability.
Supply support for 1.5SMC7.5CAHE3/9AT 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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, automotive qualification, and high-power transient suppression.
The 1.5SMC Series was developed for high-energy, surface-mount transient protection in harsh environments - targeting automotive, industrial, and telecom systems where AEC-Q101 compliance and 1500 W pulse capability are mandatory.
FAQ
What does the "CA" suffix indicate in 1.5SMC7.5CAHE3/9AT?
The "CA" suffix in 1.5SMC7.5CAHE3/9AT denotes a bidirectional configuration - meaning the device provides symmetrical clamping for both positive and negative transients without polarity dependence. This eliminates orientation constraints during PCB layout and assembly, unlike unidirectional variants (e.g., 1.5SMC7.5A) that require cathode alignment.
Is 1.5SMC7.5CAHE3/9AT AEC-Q101 qualified?
Yes, 1.5SMC7.5CAHE3/9AT is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation (Document Number 88303). This qualification validates its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces under extended temperature and reliability stress testing.
What is the maximum clamping voltage of 1.5SMC7.5CAHE3/9AT at rated peak pulse current?
The maximum clamping voltage (VC) of 1.5SMC7.5CAHE3/9AT is 11.3 V at 133 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events.
Can 1.5SMC7.5CAHE3/9AT be used in place of a unidirectional TVS like 1.5SMC7.5A?
No - 1.5SMC7.5CAHE3/9AT is bidirectional and lacks polarity marking, while 1.5SMC7.5A is unidirectional with cathode band identification. Substitution requires circuit review: bidirectional use is mandatory for AC-coupled or floating lines; unidirectional parts are needed where DC bias or asymmetric protection is required.
What packaging format does 1.5SMC7.5CAHE3/9AT ship in?
1.5SMC7.5CAHE3/9AT ships in 13-inch diameter plastic tape and reel (ordering code "/9AT"), containing 3500 units per reel. This format supports high-speed pick-and-place assembly and is compatible with standard SMT feeders used in automotive and industrial manufacturing lines.
1.5SMC7.5CAHE3/9AT 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:
- 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):
- 133A
- 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 (SMCJ)
1.5SMC7.5CAHE3/9AT FAQ
1.How can I place an order for 1.5SMC7.5CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5CAHE3/9AT 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 1.5SMC7.5CAHE3/9AT reliable?
The price and inventory of 1.5SMC7.5CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC7.5CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5CAHE3/9AT?
1.5SMC7.5CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5CAHE3/9AT 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 1.5SMC7.5CAHE3/9AT?
For technical support, including 1.5SMC7.5CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5CAHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC7.5CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5CAHE3/9AT 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 1.5SMC7.5CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5CAHE3/9AT?
All 1.5SMC7.5CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5CAHE3/9AT, 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 1.5SMC7.5CAHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC7.5CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5CAHE3/9AT Tags
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