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Vishay General Semiconductor - Diodes Division SMA5J10A-E3/5A
- Part No.:
- SMA5J10A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10A-E3/5A.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,034
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Product details
Overview
SMA5J10A-E3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of DC power rails and signal 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, and 500 W peak pulse power rating with 10/1000 μs waveform. It is widely deployed in automotive ECUs and industrial sensor interfaces to suppress inductive switching transients.
For engineers reviewing the SMA5J10A-E3/5A datasheet, SMA5J10A-E3/5A pinout, SMA5J10A-E3/5A application, or SMA5J10A-E3/5A equivalent, key selection criteria include clamping performance under 29.4 A surge, thermal resistance (RθJA = 80 °C/W), unidirectional polarity marking, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 10 V, it avalanches at VBR = 11.1–12.3 V (tested at 1 mA), limiting transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at VWM).
It delivers 500 W peak pulse power (10/1000 μs) with very fast response time (<1 ns), low incremental surge resistance, and meets MSL Level 1 per J-STD-020 (260 °C reflow peak). Junction temperature range is –55 °C to +150 °C, supporting under-hood automotive use when AEC-Q101 qualified variants are selected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 11.1 V / 12.3 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 17.0 V at 29.4 A - Clamped voltage during 500 W transient; determines maximum stress on protected IC. |
| PPPM | 500 W - Peak pulse power handling with 10/1000 μs waveform; validates protection against common ISO 7637-2 pulses. |
| IFSM | 40 A - Non-repetitive forward surge current (8.3 ms half-sine); supports unidirectional inrush tolerance. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm pads; informs derating above 25 °C. |
| Junction Temp | –55 °C to +150 °C - Full operational and storage range; enables deployment in engine control units and industrial drives. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band on body; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to protected line (e.g., 12 V rail); must be routed with low-inductance trace to ground plane. |
| Cathode | Clamping node / surge sink | Marked with band; tied directly to system ground or chassis ground to minimize clamping loop inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables high-density PCB layouts and compatibility with automated pick-and-place equipment (0.208" × 0.157"). |
| Glass-passivated junction | Ensures stable VBR tolerance, low leakage (<1.0 μA), and long-term reliability under thermal cycling. |
| 500 W peak pulse power | Withstands severe transients such as load dump (ISO 16750-2) and inductive kickback without degradation. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without moisture-induced failure; no baking required pre-assembly. |
| RoHS-compliant (E3 suffix) | Meets EU Directive 2011/65/EU; matte tin plating ensures solderability and whisker resistance (JESD 201 Class 2). |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control modules from load-dump transients (up to 35 V, 400 ms) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional shunt TVS clamping excess voltage to <17.0 V during sub-microsecond events. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers downstream of the protected rail. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in PLC I/O modules from ESD and field-wiring faults. IC Role / Device Role / Timing Role: Fast-response (<1 ns) voltage clamp absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity and avoids false triggering or calibration drift in precision measurement circuits. |
| Consumer Power Adapter Input | Telecom DC Feeder Line Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD and laptop chargers. IC Role / Device Role / Timing Role: Standby-mode protector holding off 10 V nominal output while clamping 30+ V surges. Use Value: Eliminates need for additional crowbar circuitry; reduces BOM count and improves MTBF vs. MOV-based solutions. |
Use Scenario: DC power feed protection in remote radio heads and base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage TVS on +48 V telecom supply, coordinated with upstream GDTs for staged clamping. Use Value: Limits let-through voltage to <17.0 V, enabling use of lower-voltage-rated DC-DC converters and reducing system cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/5A | Lower PPPM (400 W vs. 500 W); same VWM/VC; smaller junction area. | Suitable for less severe transients (e.g., consumer USB ports); not recommended for automotive load dump. | Select SMA5J10A-E3/5A when 500 W pulse rating is required for ISO 7637-2 compliance. |
| SMBJ10A-E3/52 | Same electrical specs but SMB (DO-214AA) package; 20 % larger footprint; RθJA = 65 °C/W. | Better thermal performance on large pads; preferred where board space allows and higher surge margin is needed. | Choose SMBJ10A-E3/52 only if layout permits larger pad area and lower thermal resistance is prioritized over density. |
Compared with SMAJ10A-E3/5A and SMBJ10A-E3/52, the SMA5J10A-E3/5A uniquely balances 500 W surge capability, SMA footprint density, and MSL Level 1 reflow compatibility-making it optimal for space-constrained automotive and industrial SMT designs requiring validated 12 V rail protection.
Availability
SMA5J10A-E3/5A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC feeder lines requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMA5J10A-E3/5A 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 AEC-Q qualification.
The SMA5J series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where 500 W pulse handling and MSL Level 1 assembly compatibility are mandatory.
FAQ
What is the clamping voltage of the SMA5J10A-E3/5A under maximum rated surge current?
The SMA5J10A-E3/5A has a maximum clamping voltage (VC) of 17.0 V when subjected to its peak pulse current (IPPM) of 29.4 A using the standardized 10/1000 μs waveform. This value is measured and guaranteed per Vishay's datasheet revision 09-Jan-2024, Document Number 88875, and defines the upper voltage limit imposed on protected circuitry during transient events.
Is the SMA5J10A-E3/5A suitable for automotive applications requiring AEC-Q101 qualification?
The SMA5J10A-E3/5A itself is RoHS-compliant commercial-grade (E3 suffix) and not AEC-Q101 qualified. However, Vishay offers the functionally identical SMA5J10AHE3_A variant (HE3 suffix) which is fully AEC-Q101 qualified. For automotive use, specify SMA5J10AHE3_A instead of SMA5J10A-E3/5A to ensure qualification compliance.
What does the "/5A" suffix indicate in SMA5J10A-E3/5A?
The "/5A" suffix in SMA5J10A-E3/5A denotes the packaging configuration: 7500 units per 13-inch diameter plastic tape and reel. It specifies the delivery format and quantity-not electrical or thermal characteristics. The "E3" portion confirms RoHS-compliant, commercial-grade construction with matte tin plating.
How does the thermal resistance of SMA5J10A-E3/5A affect its derating in real-world PCB layouts?
The SMA5J10A-E3/5A has a typical RθJA of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. In practice, reducing pad size or omitting thermal vias increases junction temperature, requiring derating of peak pulse power above 25 °C ambient-refer to Figure 2 in the Vishay datasheet for precise derating curves.
Can SMA5J10A-E3/5A be used in bidirectional protection circuits?
No-SMA5J10A-E3/5A is a unidirectional TVS diode, identifiable by the cathode band marking. For bidirectional protection, Vishay specifies the CA-suffixed variant (e.g., SMA5J10CA). Using SMA5J10A-E3/5A in reverse-biased configurations risks catastrophic failure due to lack of symmetrical avalanche capability.
SMA5J10A-E3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J10A-E3/5A FAQ
1.How can I place an order for SMA5J10A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10A-E3/5A 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 SMA5J10A-E3/5A reliable?
The price and inventory of SMA5J10A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J10A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10A-E3/5A?
SMA5J10A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10A-E3/5A 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 SMA5J10A-E3/5A?
For technical support, including SMA5J10A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10A-E3/5A requirements.
6.How does Aetrix verify that SMA5J10A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J10A-E3/5A 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 SMA5J10A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J10A-E3/5A?
All SMA5J10A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10A-E3/5A, 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 SMA5J10A-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J10A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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