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Vishay General Semiconductor - Diodes Division SMA5J7.5CHE3/5A
- Part No.:
- SMA5J7.5CHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.5CHE3/5A.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,492
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Product details
Overview
SMA5J7.5CHE3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on power and signal lines. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA, 12.9 V maximum clamping voltage (VC) at 100 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMA5J7.5CHE3/5A datasheet, SMA5J7.5CHE3/5A pinout, SMA5J7.5CHE3/5A application, or SMA5J7.5CHE3/5A equivalent, key selection criteria include bi-directional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates symmetrically in both directions due to its bi-directional construction, enabling suppression of positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance and low leakage (ID ≤ 1.0 µA at VWM), while the DO-214AC package delivers thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead).
The SMA5J7.5CHE3/5A is rated for non-repetitive 10/1000 µs surge pulses up to 100 A, with clamping performance validated under JEDEC-standard test conditions. It meets MSL Level 1 (260 °C reflow peak) and is qualified to AEC-Q101 for automotive under-hood and body electronics applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - reverse stand-off voltage; defines maximum continuous operating voltage before significant leakage begins |
| VBR min/max | 8.33 V / 9.21 V at 1.0 mA - guaranteed breakdown range ensuring predictable turn-on during transients |
| VC @ IPPM | 12.9 V at 100 A - clamping voltage limits downstream IC stress during 10/1000 µs surges |
| PPPM | 500 W - peak pulse power handling capacity under standardized transient waveform |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| MSL Level | Level 1 per J-STD-020 - supports standard lead-free reflow without moisture sensitivity concerns |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional configuration with no polarity marking (unlike uni-directional variants which feature cathode band). Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), matte tin-plated leads, RoHS-compliant, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional terminals | No functional distinction - either terminal serves as anode or cathode depending on transient polarity |
| Case (body) | Non-electrical mechanical interface | Thermally conductive path to PCB copper; no electrical connection required |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional suppression | Enables single-device protection of AC-coupled or floating signal lines without polarity planning |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| AEC-Q101 qualification | Validates robustness for automotive applications including engine control, ADAS sensors, and infotainment I/O |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| MSL Level 1 rating | Eliminates bake-out requirement prior to SMT assembly, reducing manufacturing cost and cycle time |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector or IC input pins to limit transient voltage below IC absolute maximum ratings. Use Value: Clamps 100 A surges to ≤12.9 V, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive microcontrollers and transceivers. | Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from solenoid coils or motor drives. IC Role / Device Role / Timing Role: Front-end transient absorber on 24 V DC input channels, positioned before optocouplers or level-shifting circuitry. Use Value: Withstands repeated 500 W pulses without degradation, maintaining consistent clamping performance across 10⁵+ surge events in factory automation environments. |
| Telecom Line Interface | Consumer Appliance Control Board |
Use Scenario: Shielding RS-485/RS-232 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bi-directional TVS placed between differential pair and transceiver, referenced to local ground plane. Use Value: Symmetric clamping ensures equal protection for both polarities of common-mode transients, critical for full-duplex communication integrity. | Use Scenario: Securing microcontroller GPIOs and relay driver outputs in smart home appliances exposed to ESD and mains-coupled noise. IC Role / Device Role / Timing Role: Secondary-level protection after primary MOVs, absorbing residual fast transients that bypass bulk suppression. Use Value: 12.9 V clamping voltage aligns with 5 V logic rail margins, preventing false resets or corrupted EEPROM writes during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.5CAHE3/5A | Identical electrical specs and AEC-Q101 qualification; differs only in part numbering convention (CA suffix explicitly denotes bi-directional) | No functional difference - same use cases and layout requirements | Select SMA5J7.5CHE3/5A when sourcing from legacy BOMs or distributors stocking HE3-suffix commercial-AEC variants |
| SMCJ7.5CA | Same VWM/VBR/VC ratings but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 35 °C/W vs. 80 °C/W) | Better suited for high-repetition-rate surges or elevated ambient temperatures (>85 °C) | Choose SMCJ7.5CA where board space allows and thermal derating margin is critical; SMA5J7.5CHE3/5A preferred for compact automotive modules |
Compared with SMA5J7.5CAHE3/5A, the SMA5J7.5CHE3/5A offers identical protection performance in the same footprint; versus SMCJ7.5CA, it trades thermal robustness for space savings - making it optimal for dense, thermally constrained automotive PCBs where 500 W single-pulse capability suffices.
Availability
SMA5J7.5CHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer appliance control boards requiring stable component supply and AEC-Q101 compliance.
Supply support for SMA5J7.5CHE3/5A 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 density, and automotive qualification.
The SMA5J series is engineered specifically for high-energy transient suppression in space-constrained automotive and industrial systems, balancing 500 W pulse capability with DO-214AC footprint and AEC-Q101 validation.
FAQ
What does the "HE3" suffix indicate in SMA5J7.5CHE3/5A?
The "HE3" suffix in SMA5J7.5CHE3/5A denotes RoHS-compliant construction with AEC-Q101 qualification. "H" signifies automotive-grade qualification, "E3" indicates matte tin plating meeting JESD 201 Class 2 whisker resistance, and "/5A" specifies packaging in 13-inch tape-and-reel (7500 units). This distinguishes it from commercial-grade "E3" variants lacking automotive certification.
Is SMA5J7.5CHE3/5A unidirectional or bidirectional?
SMA5J7.5CHE3/5A is a bi-directional transient voltage suppressor. Unlike uni-directional variants (e.g., SMA5J7.5A), it has no cathode marking and provides symmetrical clamping for both positive and negative transients - confirmed by its "CA"-implied bi-directionality in Vishay's naming convention and electrical characteristics applying equally in both directions.
What is the maximum clamping voltage for SMA5J7.5CHE3/5A under surge conditions?
The maximum clamping voltage (VC) for SMA5J7.5CHE3/5A is 12.9 V, measured at 100 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream IC voltage margining in designs using the SMA5J7.5CHE3/5A.
Can SMA5J7.5CHE3/5A be used in place of SMA5J7.5A in a new design?
No - SMA5J7.5CHE3/5A is bi-directional, while SMA5J7.5A is uni-directional with a cathode band. Substituting them requires verifying circuit polarity: SMA5J7.5A must be oriented with the band toward the more negative potential, whereas SMA5J7.5CHE3/5A has no orientation requirement. Using SMA5J7.5CHE3/5A in a uni-directional circuit adds unnecessary cost and may reduce leakage margin.
What PCB pad layout is recommended for optimal thermal performance of SMA5J7.5CHE3/5A?
Vishay specifies mounting SMA5J7.5CHE3/5A on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W pulse power. Smaller pads cause thermal derating; internal copper layers and thermal vias beneath pads further improve heat dissipation. The DO-214AC outline drawing confirms 4.93 mm × 3.99 mm land pattern compatibility with standard SMA footprints.
SMA5J7.5CHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 14.3V
- Current - Peak Pulse (10/1000µs):
- 35A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J7.5CHE3/5A FAQ
1.How can I place an order for SMA5J7.5CHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.5CHE3/5A 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 SMA5J7.5CHE3/5A reliable?
The price and inventory of SMA5J7.5CHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.5CHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J7.5CHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.5CHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.5CHE3/5A?
SMA5J7.5CHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.5CHE3/5A 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 SMA5J7.5CHE3/5A?
For technical support, including SMA5J7.5CHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.5CHE3/5A requirements.
6.How does Aetrix verify that SMA5J7.5CHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J7.5CHE3/5A 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 SMA5J7.5CHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J7.5CHE3/5A?
All SMA5J7.5CHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.5CHE3/5A, 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 SMA5J7.5CHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J7.5CHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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