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Vishay General Semiconductor - Diodes Division SMA5J10CAHE3/5A
- Part No.:
- SMA5J10CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10CAHE3/5A.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J10CAHE3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 17.0 V clamping voltage (VC) at 29.4 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J10CAHE3/5A datasheet, SMA5J10CAHE3/5A pinout, SMA5J10CAHE3/5A application, or SMA5J10CAHE3/5A equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling robust protection against positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance and fast response time (<1 ns), while the low RθJA of 80 °C/W supports thermal reliability under repetitive surge stress.
The device complies with ANSI/IEEE C62.35 for surge testing and meets J-STD-020 MSL Level 1 (260 °C peak reflow). With AEC-Q101 qualification confirmed for HE3 suffix variants, SMA5J10CAHE3/5A is rated for operation from −55 °C to +150 °C junction temperature and supports automotive-grade supply chain traceability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 11.1 V / 12.3 V - measured at 1 mA test current; ensures predictable turn-on threshold across production lot. |
| VC @ IPPM | 17.0 V at 29.4 A - clamped voltage during 10/1000 μs surge; limits downstream IC stress below logic-level damage thresholds. |
| PPPM | 500 W - peak pulse power handling capacity; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| TJ max | +150 °C - maximum junction temperature; allows deployment in under-hood automotive environments and industrial enclosures. |
| Package | SMA (DO-214AC) - surface-mount outline with 5.28 mm × 4.50 mm footprint; compatible with standard 7" and 13" tape-and-reel feeders. |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; suffix HE3 denotes qualification. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts surge current in either direction when voltage exceeds VBR magnitude. |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides mechanical anchoring and contributes to thermal dissipation via PCB copper pad contact. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| Glass passivated junction | Ensures long-term VBR stability and low leakage (<1.0 μA at VWM) across temperature and lifetime stress. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving margin for 3.3 V/5 V logic interface protection. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without preconditioning; eliminates moisture-related popcorning risk. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS sensor modules requiring zero-defect reliability. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching ASIC or MCU input pins. Use Value: Maintains signal integrity by limiting transient overvoltage to ≤17.0 V, preventing latch-up or gate oxide damage in 5 V-tolerant receivers. |
Use Scenario: Guarding PLC digital input channels and RS-485 transceiver lines against EFT bursts and lightning-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff-mode protector operating continuously at 10 V DC bias while responding within <1 ns to sub-microsecond transients. Use Value: Delivers 500 W surge immunity without derating at 85 °C ambient, supporting fanless industrial enclosure designs. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side surge suppression on 12 V DC outputs of wall adapters and USB-PD power supplies exposed to user-handling transients. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) TVS placed after DC-DC converter output filter to avoid signal distortion. Use Value: Clamps 10/1000 μs surges to 17.0 V while adding negligible noise or ripple to regulated output. |
Use Scenario: Front-end protection of Ethernet PHYs and POTS line interfaces in DSLAMs and base station line cards subjected to induced lightning surges. IC Role / Device Role / Timing Role: Primary-level surge diverter mounted on board edge, coordinated with gas discharge tube (GDT) upstream for staged protection. Use Value: Provides precise 10 V standoff matching telecom line signaling levels, avoiding false triggering during normal mode noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J10CA-M3/5A | No AEC-Q101 qualification; halogen-free RoHS-compliant but intended for commercial-grade use only. | Lacks automotive stress validation; suitable for consumer or industrial non-safety-critical systems. | Select when AEC-Q101 is not required and halogen-free compliance is mandated by end-equipment environmental policy. |
| SMCJ10CAHE3/5A | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; higher thermal mass (RθJA = 35 °C/W) and 1500 W PPPM rating. | Offers greater surge endurance for high-energy threats (e.g., 10/1000 μs 100 A surges); requires larger PCB area. | Choose when system-level surge test requirements exceed 500 W or when extended thermal margin is needed in sealed enclosures. |
Compared with SMA5J10CAHE3/5A, SMA5J10CA-M3/5A trades automotive qualification for halogen-free compliance, while SMCJ10CAHE3/5A upgrades surge capacity and thermal performance at the cost of footprint size - making SMA5J10CAHE3/5A optimal for space-constrained AEC-Q101 designs needing exact 500 W/10 V coordination.
Availability
SMA5J10CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom line card surge suppression requiring stable component supply, full AEC-Q101 traceability, and consistent 10 V bidirectional clamping performance.
Supply support for SMA5J10CAHE3/5A 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 high-reliability, high-power-density solutions.
The SMA5J series is engineered for high-energy transient suppression in space-constrained SMT applications, targeting automotive, industrial, and telecom systems where AEC-Q101 compliance and precise 10/1000 μs surge response are mandatory.
FAQ
What is the clamping voltage of the SMA5J10CAHE3/5A under a 10/1000 μs surge?
The SMA5J10CAHE3/5A clamps to a maximum of 17.0 V when subjected to its rated peak pulse current of 29.4 A with a 10/1000 μs waveform. This value is guaranteed across temperature and process variation per Vishay's datasheet Document Number 88875, ensuring predictable overvoltage limiting for downstream 5 V or 12 V circuits. The SMA5J10CAHE3/5A achieves this with low incremental surge resistance and symmetrical bidirectional structure.
Is the SMA5J10CAHE3/5A suitable for automotive applications?
Yes, the SMA5J10CAHE3/5A is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's 88875 datasheet. It is rated for −55 °C to +150 °C junction temperature and validated for automotive stress tests including temperature cycling, high-temperature operating life, and ESD. The SMA5J10CAHE3/5A is commonly used in engine control units, body electronics, and ADAS sensor interfaces requiring certified surge protection.
Does the SMA5J10CAHE3/5A have polarity markings on the package?
No, the SMA5J10CAHE3/5A does not feature polarity markings because it is a bidirectional TVS diode - both terminals are functionally identical and conduct equally in either direction. Unlike unidirectional variants (e.g., SMA5J10A), the SMA5J10CAHE3/5A has no cathode band or other orientation indicator, simplifying layout and eliminating installation errors in AC or floating signal paths.
What is the maximum peak pulse current rating for the SMA5J10CAHE3/5A?
The SMA5J10CAHE3/5A has a peak pulse current (IPPM) rating of 29.4 A under the standard 10/1000 μs double-exponential waveform, derived from its 500 W peak pulse power (PPPM) and 17.0 V clamping voltage (VC). This rating assumes mounting on 0.2" × 0.2" copper pads per JEDEC standards and is valid at TA = 25 °C, with derating applied above that temperature per Figure 2 in the datasheet.
How does the SMA5J10CAHE3/5A differ from the unidirectional SMA5J10AHE3/5A?
The SMA5J10CAHE3/5A is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas the SMA5J10AHE3/5A is unidirectional with a cathode band and conducts only in reverse bias. Electrically, SMA5J10AHE3/5A specifies forward voltage (VF = 3.5 V at 25 A), which does not apply to the SMA5J10CAHE3/5A. Both share identical VWM (10 V), VBR (11.1–12.3 V), and PPPM (500 W), but only the CA version protects AC-coupled or differential lines without external circuitry.
SMA5J10CAHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- 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)
SMA5J10CAHE3/5A FAQ
1.How can I place an order for SMA5J10CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10CAHE3/5A 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 SMA5J10CAHE3/5A reliable?
The price and inventory of SMA5J10CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10CAHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J10CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10CAHE3/5A?
SMA5J10CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10CAHE3/5A 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 SMA5J10CAHE3/5A?
For technical support, including SMA5J10CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10CAHE3/5A requirements.
6.How does Aetrix verify that SMA5J10CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J10CAHE3/5A 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 SMA5J10CAHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J10CAHE3/5A?
All SMA5J10CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10CAHE3/5A, 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 SMA5J10CAHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J10CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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