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Vishay General Semiconductor - Diodes Division SMA5J30C-E3/61
- Part No.:
- SMA5J30C-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30C-E3/61.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,590
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Product details
Overview
SMA5J30C-E3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection on signal and power lines. It features a 30 V stand-off voltage (VWM), 48.4 V clamping voltage (VC) at 10.3 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 SMA5J30C-E3/61 datasheet, SMA5J30C-E3/61 pinout, SMA5J30C-E3/61 application, or SMA5J30C-E3/61 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin plating, and thermal resistance (RθJA = 80 °C/W) under PCB pad-limited dissipation conditions.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified as 33.3–36.8 V at 1 mA test current. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, lightning-induced transients, and inductive switching spikes without affecting signal integrity.
The device uses a glass-passivated silicon junction and is rated for junction temperatures from –55 °C to +150 °C. It meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and its DO-214AC package supports automated placement while maintaining mechanical robustness per UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 33.3 V / 36.8 V at 1 mA - ensures reliable triggering above normal operating voltage |
| VC @ IPPM | 48.4 V at 10.3 A - limits downstream voltage during 10/1000 µs surge events |
| PPPM | 500 W - peak transient energy handling capacity under standardized waveform |
| ID @ VWM | 1.0 µA - ultra-low leakage preserves signal line integrity in high-impedance circuits |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial ambient environments |
| RθJA | 80 °C/W - thermal performance measured on 0.2" × 0.2" copper pads; dictates layout-dependent power derating |
Pinout & Package
DO-214AC (SMA) surface-mount package with two terminals: anode and cathode. Bi-directional construction means no polarity marking; terminals are functionally symmetric and interchangeable in circuit placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current when voltage exceeds VBR in positive direction |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current when voltage exceeds VBR in negative direction; identical behavior to anode due to bi-directional symmetry |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control, body modules, and ADAS sensors |
| Glass passivated junction | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning |
| RoHS-compliant matte tin leads | Ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 1A |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load dump and ESD in vehicle ECUs. IC Role / Device Role: Primary transient shunt placed directly at connector or IC input pins. Use Value: Limits induced transients to ≤48.4 V, preserving signal fidelity and preventing latch-up in 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against field-wiring surges and ground bounce. IC Role / Device Role: Standoff-rated TVS mounted at terminal block entry points before optocoupler or level-shifter stages. Use Value: Withstands repetitive 500 W surges while maintaining <1 µA leakage at 30 V, minimizing false triggering in 24 V DC control systems. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHYs, DSL line drivers, and PoE injectors from lightning-induced common-mode transients. IC Role / Device Role: Bi-directional clamp on differential pairs or power rails feeding isolated communication ICs. Use Value: Symmetric clamping ensures balanced suppression on twisted-pair lines without skew or DC bias shift. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors and solenoids in washing machines, HVAC actuators, and power tools. IC Role / Device Role: Snubber element across motor terminals or relay coils, diverting inductive energy away from driver MOSFETs. Use Value: 500 W PPPM rating handles short-duration coil turn-off spikes without degradation over >10⁵ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30CA-E3/61 | Identical electrical specs and packaging; CA suffix explicitly denotes bi-directional version per Vishay naming convention | No functional difference - SMA5J30C-E3/61 and SMA5J30CA-E3/61 refer to the same device per Vishay documentation | Select SMA5J30CA-E3/61 if BOM requires explicit CA designation for traceability or procurement alignment |
| SMB5J30CA | Same VWM (30 V) and VC (48.4 V), but in larger DO-214AA (SMB) package with higher RθJA (60 °C/W) and 600 W PPPM rating | Better thermal margin in high-power or poorly heatsinked layouts; not drop-in due to larger footprint and different pad geometry | Choose SMB5J30CA only when board layout allows larger package and higher surge margin is required beyond 500 W |
Compared with SMA5J30C-E3/61, SMA5J30CA-E3/61 is a nomenclature-equivalent part with identical performance, while SMB5J30CA offers higher power handling in a physically larger package - requiring PCB redesign but enabling improved thermal management in demanding industrial environments.
Availability
SMA5J30C-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface designs requiring stable component supply, AEC-Q101 compliance, and RoHS-conformant manufacturing.
Supply support for SMA5J30C-E3/61 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 passive components with emphasis on reliability, power density, and automotive-grade qualification.
The SMA5J series is engineered specifically for high-energy transient suppression in space-constrained surface-mount applications - targeting automotive, industrial, and communications systems where robustness, consistency, and JEDEC-compliant manufacturability are critical.
FAQ
What does the "C" suffix indicate in SMA5J30C-E3/61?
The "C" in SMA5J30C-E3/61 denotes bi-directional functionality - confirming symmetrical clamping behavior in both voltage polarities. This distinguishes it from uni-directional variants (e.g., SMA5J30A-E3/61) and aligns with Vishay's naming convention where "CA" is also used interchangeably for bi-directional types. The SMA5J30C-E3/61 datasheet confirms identical VBR, VC, and IPPM values for both directions.
Is SMA5J30C-E3/61 qualified for automotive use?
Yes, SMA5J30C-E3/61 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 24-Oct-12. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge endurance - validating its suitability for under-hood and cabin-mounted automotive electronics including body control modules and sensor interfaces.
What is the maximum clamping voltage of SMA5J30C-E3/61 under surge conditions?
The maximum clamping voltage (VC) of SMA5J30C-E3/61 is 48.4 V, measured at 10.3 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
Does SMA5J30C-E3/61 require polarity-aware PCB layout?
No - SMA5J30C-E3/61 is bi-directional and has no polarity marking on the DO-214AC (SMA) package. Its terminals are functionally identical, allowing orientation-agnostic placement on PCBs. This simplifies layout, eliminates risk of reverse installation, and supports protection of AC-coupled or floating signal paths without additional design constraints.
What is the thermal resistance of SMA5J30C-E3/61, and how does it affect layout?
SMA5J30C-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This value directly determines safe power derating above 25 °C ambient; for example, at 85 °C ambient, maximum allowable average power drops to ~315 W. Layout must replicate the specified pad size to achieve rated thermal performance.
SMA5J30C-E3/61 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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)
SMA5J30C-E3/61 FAQ
1.How can I place an order for SMA5J30C-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30C-E3/61 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 SMA5J30C-E3/61 reliable?
The price and inventory of SMA5J30C-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30C-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J30C-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30C-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30C-E3/61?
SMA5J30C-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30C-E3/61 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 SMA5J30C-E3/61?
For technical support, including SMA5J30C-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30C-E3/61 requirements.
6.How does Aetrix verify that SMA5J30C-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J30C-E3/61 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 SMA5J30C-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J30C-E3/61?
All SMA5J30C-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30C-E3/61, 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 SMA5J30C-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J30C-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J30C-E3/61 Tags
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