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Vishay General Semiconductor - Diodes Division SMA5J30AHE3_A/I
- Part No.:
- SMA5J30AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30AHE3_A/I.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,846
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Product details
Overview
SMA5J30AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 30 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA, 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 - used to safeguard MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J30AHE3_A/I datasheet, SMA5J30AHE3_A/I pinout, SMA5J30AHE3_A/I application, or SMA5J30AHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °C/W), polarity marking convention, and direct comparison to functionally aligned TVS alternatives for robust overvoltage design validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 30 V (VWM), breaks down within 33.3–36.8 V (VBR) at 1 mA, and clamps transients to ≤48.4 V at 10.3 A (IPPM). Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and fast response time under ESD or lightning-induced surges.
Rated for -55 °C to +150 °C junction temperature, it supports automotive-grade reliability via AEC-Q101 qualification (HE3 suffix), RoHS compliance, and MSL Level 1 moisture sensitivity. Thermal performance is defined by RθJA = 80 °C/W (on 5.0 mm × 5.0 mm copper pads) and RθJL = 25 °C/W, enabling predictable derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 24 V DC systems. |
| VBR min/max | 33.3 V / 36.8 V at 1 mA - guaranteed breakdown window ensuring consistent turn-on across production lots. |
| VC @ IPPM | 48.4 V at 10.3 A (10/1000 μs) - clamping voltage limiting downstream device stress during surge events. |
| PPPM | 500 W - peak transient power handling capacity under standardized surge waveform. |
| ID @ VWM | <1 μA - ultra-low reverse leakage preserves efficiency in battery-powered or low-quiescent circuits. |
| TJ max | +150 °C - maximum junction temperature supporting operation in under-hood automotive environments. |
| RθJA | 80 °C/W - thermal resistance from junction to ambient on standard 5.0 mm × 5.0 mm PCB copper pads. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band; unidirectional only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration. |
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line (e.g., 24 V rail); conducts when transient exceeds VBR to shunt energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power rails. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a). |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in body control modules against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS shunt element clamping voltage spikes to prevent damage to MCU power inputs and CAN transceivers. Use Value: Withstands 500 W surges and clamps to 48.4 V, keeping downstream 3.3 V/5 V regulators and microcontrollers within safe operating limits. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) from ESD and cable discharge events in factory automation sensors. IC Role / Device Role / Timing Role: Standby-mode protector placed between sensor output and PLC input, activated only during overvoltage events. Use Value: Sub-1 μA leakage avoids loading precision current sources; fast response prevents latch-up in op-amp front-ends. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: Securing 48 V DC input of PoE-powered switches and base stations against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on main DC bus, coordinated with upstream fuses and secondary-stage filtering. Use Value: 500 W PPPM rating enables single-device coverage of IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge testing. |
Use Scenario: Adding robust overvoltage protection to USB-C PD adapter 20 V output rails before connector interface. IC Role / Device Role / Timing Role: Final-stage clamp preventing fault propagation from damaged secondary-side MOSFETs or controller ICs. Use Value: 30 V VWM aligns with 20 V PD profile headroom; 48.4 V VC ensures connected devices remain below absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30AHM3_A/I | Halogen-free variant with identical electrical specs and AEC-Q101 qualification; same RθJA and clamping behavior. | Required where halogen-free compliance is mandated (e.g., EU public transport, medical equipment). | Select SMA5J30AHM3_A/I when RoHS + halogen-free material declaration is contractually required. |
| SMA6J30AHE3_A/I | 600 W PPPM rating (vs. 500 W), higher IPPM (12.3 A), same VWM/VBR/VC; larger thermal mass but same SMA footprint. | Better suited for systems requiring higher surge margin (e.g., off-road vehicle electronics, solar charge controllers). | Choose SMA6J30AHE3_A/I when design margin demands >500 W surge handling without layout change. |
Compared with SMA5J30AHE3_A/I, SMA5J30AHM3_A/I offers identical protection performance with halogen-free construction, while SMA6J30AHE3_A/I provides 20 % higher surge power rating in the same SMA package - enabling upgrade paths without PCB redesign.
Availability
SMA5J30AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer power adapters requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for SMA5J30AHE3_A/I 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, TVS devices, and optoelectronics with emphasis on reliability, power density, and automotive qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained applications, targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of SMA5J30AHE3_A/I at its rated peak pulse current?
The SMA5J30AHE3_A/I has a maximum clamping voltage (VC) of 48.4 V when subjected to its specified peak pulse current (IPPM) of 10.3 A under a 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that downstream components see no more than 48.4 V during surge events, making SMA5J30AHE3_A/I suitable for protecting 3.3 V, 5 V, and 24 V system rails.
Is SMA5J30AHE3_A/I qualified for automotive applications?
Yes, SMA5J30AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's datasheet (Document Number: 88875, Revision: 09-Jan-2024). This qualification validates its reliability for use in automotive powertrain, chassis, and body electronics, including under-hood environments with extended temperature cycling and vibration exposure.
What does the "_A/I" suffix mean in SMA5J30AHE3_A/I?
The "_A/I" suffix in SMA5J30AHE3_A/I denotes packaging configuration: "A" indicates revision level A per Vishay's internal part numbering, and "I" specifies 13-inch diameter plastic tape and reel delivery mode with 7500 units per reel. This matches the ordering information table in the official datasheet and confirms full compatibility with high-speed SMT placement equipment.
How does SMA5J30AHE3_A/I differ from SMA5J30AE3_A/I?
SMA5J30AHE3_A/I includes AEC-Q101 qualification and automotive-grade screening, whereas SMA5J30AE3_A/I is commercial-grade only (no automotive qualification). Both share identical electrical specs (VWM = 30 V, VC = 48.4 V), but SMA5J30AHE3_A/I undergoes additional stress testing per AEC-Q101, making it mandatory for automotive designs requiring certified reliability.
What is the thermal resistance of SMA5J30AHE3_A/I, and how is it measured?
SMA5J30AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W, measured with the device mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per JEDEC JESD51-3. Its junction-to-lead resistance (RθJL) is 25 °C/W. These values enable accurate thermal derating calculations for sustained surge duty cycles in real-world PCB layouts.
SMA5J30AHE3_A/I 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMA5J30AHE3_A/I FAQ
1.How can I place an order for SMA5J30AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30AHE3_A/I 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 SMA5J30AHE3_A/I reliable?
The price and inventory of SMA5J30AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J30AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30AHE3_A/I?
SMA5J30AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30AHE3_A/I 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 SMA5J30AHE3_A/I?
For technical support, including SMA5J30AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30AHE3_A/I requirements.
6.How does Aetrix verify that SMA5J30AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J30AHE3_A/I 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 SMA5J30AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J30AHE3_A/I?
All SMA5J30AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30AHE3_A/I, 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 SMA5J30AHE3_A/I part is unused and in its original packaging.
Return procedure for SMA5J30AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J30AHE3_A/I Tags
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