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Vishay General Semiconductor - Diodes Division SMA5J15C-E3/5A
- Part No.:
- SMA5J15C-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J15C-E3/5A.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,521
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Product details
Overview
SMA5J15C-E3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on signal and power lines. It features a 15 V stand-off voltage (VWM), 24.4 V maximum clamping voltage (VC) at 20.5 A peak pulse current (IPPM), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the SMA5J15C-E3/5A datasheet, SMA5J15C-E3/5A pinout, SMA5J15C-E3/5A application, or SMA5J15C-E3/5A equivalent, key selection criteria include bi-directional clamping capability, low incremental surge resistance, MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically in both reverse and forward directions, with breakdown voltage (VBR) specified between 16.7 V and 18.5 V at 1 mA test current. Its clamping performance is validated under standardized 10/1000 µs surge waveforms per ANSI/IEEE C62.35, delivering consistent protection across temperature ranges from –55 °C to +150 °C.
The device uses a glass-passivated silicon junction and exhibits low thermal resistance (RθJA = 80 °C/W, RθJL = 25 °C/W), enabling effective heat dissipation during transient events. It meets J-STD-020 reflow profile requirements with a maximum peak temperature of 260 °C and passes JESD201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping initiates |
| VC @ IPPM | 24.4 V at 20.5 A - Clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 500 W - Peak pulse power handling capacity under standard transient waveform |
| VBR min/max | 16.7 V / 18.5 V - Breakdown voltage range at 1 mA, confirming bi-directional symmetry |
| TJ max | +150 °C - Maximum junction temperature, supporting operation in under-hood automotive environments |
| Package | DO-214AC (SMA) - Surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height |
| Moisture Sensitivity | MSL Level 1 - No floor life limitation; safe for standard reflow without baking |
Pinout & Package
DO-214AC (SMA) package: surface-mount, bi-directional device with no polarity marking; cathode band absent per specification for CA-suffix types. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction - terminals interchangeable; clamps voltage surges equally in either direction |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides mechanical mounting and contributes to thermal dissipation via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validated reliability for automotive applications including engine control, infotainment, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for sensitive ICs |
| Glass passivated junction | Enhances long-term stability and humidity resistance versus epoxy-passivated alternatives |
| Automated placement compatibility | Standardized DO-214AC geometry and lead coplanarity support high-yield pick-and-place assembly |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus or 12 V supply rails in body control modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Voltage clamping element placed in parallel with protected line to shunt surge energy to ground. Use Value: Limits transient voltage to ≤24.4 V, safeguarding 3.3 V/5 V microcontrollers and CAN/LIN transceivers downstream. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in pressure or temperature sensors exposed to ESD and field wiring noise. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on signal path, activated within picoseconds of transient onset. Use Value: Maintains signal integrity by suppressing >1 kV ESD events while adding <1 pF capacitance at VWM, avoiding bandwidth degradation. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level ESD protection on USB 2.0 data lines (D+/D−) in portable devices where primary protection resides upstream. IC Role / Device Role / Timing Role: Bi-directional clamping diode bridging differential pair to common-mode ground reference. Use Value: Withstands ±15 kV contact discharge (IEC 61000-4-2) without degradation, preserving signal rise/fall times due to low dynamic impedance. | Use Scenario: Front-end surge suppression on twisted-pair DSL lines subjected to lightning-induced surges and AC power cross-talk. IC Role / Device Role / Timing Role: High-energy transient absorber connected line-to-line and line-to-ground in hybrid coupler circuits. Use Value: Handles 500 W peak pulses (10/1000 µs) without failure, meeting ITU-T K.20 and GR-1089-CORE requirements for central office equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J15CA-E3/5A | Identical electrical specs and packaging; "CA" suffix explicitly denotes bi-directional configuration per Vishay naming convention | No functional difference - SMA5J15C-E3/5A and SMA5J15CA-E3/5A refer to the same device per Vishay documentation | Select SMA5J15CA-E3/5A when ordering requires explicit bi-directional designation in part number for BOM traceability |
| SMCJ15CA | Same VWM/VC ratings but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 30 °C/W vs. 80 °C/W) | Better suited for higher average power dissipation or repeated surge events; requires larger PCB area | Choose SMCJ15CA only if system-level thermal analysis confirms insufficient margin with SMA5J15C-E3/5A's 80 °C/W RθJA |
Compared with SMA5J15CA-E3/5A (identical device) and SMCJ15CA (higher-power variant), SMA5J15C-E3/5A delivers optimal space-constrained protection for automotive and industrial PCBs where DO-214AC footprint and MSL Level 1 compliance are mandatory.
Availability
SMA5J15C-E3/5A is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, consumer USB port protection, and telecom DSL line surge suppression requiring stable component supply and AEC-Q101-qualified reliability.
Supply support for SMA5J15C-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 automotive-grade qualification.
The SMA5J series is engineered specifically for high-energy transient suppression in space-constrained, high-reliability applications - particularly automotive subsystems, industrial controls, and communication infrastructure where bi-directional clamping and AEC-Q101 validation are required.
FAQ
What is the polarity configuration of SMA5J15C-E3/5A?
SMA5J15C-E3/5A is a bi-directional TVS diode with no polarity marking - the device clamps symmetrically in both directions and has no anode/cathode distinction. Per Vishay documentation, bi-directional types use the "CA" suffix and omit the cathode band found on uni-directional variants like SMA5J15A. This makes SMA5J15C-E3/5A ideal for protecting AC signals or floating lines where voltage polarity may reverse.
Does SMA5J15C-E3/5A meet automotive qualification standards?
Yes, SMA5J15C-E3/5A is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 24-Oct-12. This qualification validates its robustness for automotive applications including engine control units, body electronics, and ADAS sensor modules. The device also complies with J-STD-020 reflow profiles (peak 260 °C), JESD201 Class 1A whisker resistance, and UL 94 V-0 flammability requirements - all critical for under-hood and cabin-mounted systems.
What is the maximum clamping voltage of SMA5J15C-E3/5A under surge conditions?
The maximum clamping voltage (VC) of SMA5J15C-E3/5A is 24.4 V at 20.5 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured across the device terminals during surge conduction and represents the upper limit of voltage imposed on protected circuitry. It ensures downstream components rated for ≤25 V operation remain within safe operating limits during transient events.
Can SMA5J15C-E3/5A be used in automated SMT assembly processes?
Yes, SMA5J15C-E3/5A is explicitly designed for automated placement: it features a low-profile DO-214AC (SMA) package, matte tin-plated leads compliant with J-STD-002 and JESD22-B102, and MSL Level 1 rating per J-STD-020. These attributes ensure reliable solder joint formation using standard reflow profiles without pre-baking, making SMA5J15C-E3/5A compatible with high-volume SMT lines in automotive and industrial manufacturing.
How does the thermal performance of SMA5J15C-E3/5A affect PCB layout?
SMA5J15C-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain junction temperature below 150 °C during repetitive surges, PCB layout must provide adequate copper area and thermal vias - reducing RθJA improves power handling margin. Layout deviations from the recommended pad size directly degrade surge endurance and may cause premature failure under sustained transient stress.
SMA5J15C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 26.9V
- Current - Peak Pulse (10/1000µs):
- 18.6A
- 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)
SMA5J15C-E3/5A FAQ
1.How can I place an order for SMA5J15C-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J15C-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 SMA5J15C-E3/5A reliable?
The price and inventory of SMA5J15C-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 SMA5J15C-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J15C-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J15C-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J15C-E3/5A?
SMA5J15C-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J15C-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 SMA5J15C-E3/5A?
For technical support, including SMA5J15C-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J15C-E3/5A requirements.
6.How does Aetrix verify that SMA5J15C-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J15C-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 SMA5J15C-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J15C-E3/5A?
All SMA5J15C-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J15C-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 SMA5J15C-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J15C-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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