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Vishay General Semiconductor - Diodes Division SMA5J30HE3/61
- Part No.:
- SMA5J30HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30HE3/61.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,530
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Product details
Overview
SMA5J30HE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 30 V standoff voltage (VWM), 33.3–36.8 V breakdown range (VBR), 48.4 V clamping voltage at 10.3 A peak pulse current (IPPM), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J30HE3/61 datasheet, SMA5J30HE3/61 pinout, SMA5J30HE3/61 application, or SMA5J30HE3/61 equivalent, key selection criteria include its unidirectional polarity, 150 °C max junction temperature, low incremental surge resistance, RoHS-compliant matte tin-plated leads, and suitability for automated SMT placement in harsh-environment electronics.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 30 V), then rapidly avalanches to clamp transients within nanoseconds. Its glass-passivated junction ensures stable breakdown and long-term reliability under repetitive surge stress.
The device is rated for 500 W peak pulse power per 10/1000 µs waveform, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold tolerance |
| VC @ IPPM | 48.4 V - Clamped voltage during 10.3 A 10/1000 µs surge; determines protected circuit's maximum transient exposure |
| PPPM | 500 W - Peak pulse power handling capability; sets surge energy limit for single-event protection |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
| Qualification | AEC-Q101 - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| Package | DO-214AC (SMA) - Surface-mount package with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with standard reflow profiles |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two coplanar leads; cathode indicated by a band on the body; terminals are matte tin-plated for solderability per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or return path; current flows anode-to-cathode during clamping |
| Cathode | High-side connection; marked with band | Connected to protected line (e.g., 30 V rail); avalanche conduction initiates here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term surge endurance without parameter drift |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow processes without moisture sensitivity concerns |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulses) |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensors |
| RoHS & whisker-tested (JESD 201 Class 2) | Meets global environmental compliance and mitigates tin whisker risk in high-reliability assemblies |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 30 V supply lines in engine control modules against load dump and inductive switching transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 30 V rail and chassis ground to clamp surges above 48.4 V. Use Value: Prevents damage to downstream MCUs and power regulators by limiting transient voltage to safe levels during 12 V/24 V system faults. | Use Scenario: Safeguarding analog input pins of industrial pressure/temperature sensors connected to 24–30 V field buses. IC Role / Device Role / Timing Role: Front-end transient suppressor on sensor signal conditioning PCB, placed before op-amp input stage. Use Value: Maintains signal integrity by suppressing ESD and cable discharge events up to ±30 kV (IEC 61000-4-2) without affecting DC accuracy. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Securing 30 V DC input of telecom remote radio units exposed to lightning-induced surges on outdoor power feeds. IC Role / Device Role / Timing Role: Primary surge arrestor on main DC input, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs 500 W surge energy (10/1000 µs) without failure, enabling compliance with ITU-T K.20 and GR-1089-CORE standards. | Use Scenario: Protecting 30 V auxiliary power inputs on smart home hubs and set-top boxes with external AC/DC adapters. IC Role / Device Role / Timing Role: Low-profile TVS on board-edge connector, oriented anode-to-ground to block negative-going transients. Use Value: Enables compact design (SMA footprint) while meeting UL 60950-1 transient immunity requirements for Class II power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30A-E3/61 | Commercial-grade version; same electrical specs but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial systems without automotive reliability mandates | Select when cost sensitivity outweighs AEC-Q101 requirement and environment is non-automotive |
| SMC5J30A | Same VWM/VC but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 35 °C/W) | Better sustained surge handling due to lower thermal resistance; requires larger PCB area | Choose for higher-reliability or higher-duty-cycle surge environments where space permits larger package |
Compared with SMA5J30A-E3/61, the SMA5J30HE3/61 adds AEC-Q101 qualification for automotive use; compared with SMC5J30A, it trades thermal performance for compactness-making SMA5J30HE3/61 optimal for space-constrained automotive PCBs needing certified reliability.
Availability
SMA5J30HE3/61 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power inputs, and consumer device DC jacks requiring stable component supply and AEC-Q101 assurance.
Supply support for SMA5J30HE3/61 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 protection devices with emphasis on high-reliability, high-power-density solutions.
The SMA5J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust, surface-mount transient suppression in automotive, industrial, and telecom power and signal lines.
FAQ
What is the polarity configuration of the SMA5J30HE3/61?
The SMA5J30HE3/61 is a unidirectional TVS diode: it conducts only when the cathode is positive relative to the anode. The cathode is marked by a band on the DO-214AC package body. This configuration makes SMA5J30HE3/61 suitable for DC rail protection where polarity is fixed, unlike bi-directional variants that suppress both positive and negative transients.
Does the SMA5J30HE3/61 meet automotive qualification standards?
Yes, the SMA5J30HE3/61 is AEC-Q101 qualified-verified per the full stress test suite including HTGB, HTRB, temperature cycling, and ESD. The "HE3" suffix explicitly denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, distinguishing it from commercial-grade SMA5J30A-E3/61.
What is the clamping voltage of the SMA5J30HE3/61 under surge conditions?
The SMA5J30HE3/61 clamps to a maximum of 48.4 V when subjected to its rated 10.3 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This clamping voltage is measured across the device terminals during surge conduction and defines the upper voltage limit imposed on the protected circuit.
Can the SMA5J30HE3/61 be used in bi-directional transient protection applications?
No-the SMA5J30HE3/61 is strictly unidirectional and must not be used for bi-directional protection. For symmetric transient suppression (e.g., AC lines or data buses), Vishay offers bi-directional variants such as SMA5J30CA, which has no polarity marking and clamps in both directions. Using SMA5J30HE3/61 in bi-directional roles risks forward conduction and failure.
What is the thermal resistance specification for the SMA5J30HE3/61?
The SMA5J30HE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead resistance (RθJL) of 25 °C/W, measured with recommended 5.0 mm × 5.0 mm copper pads per terminal. These values assume standard JEDEC test conditions and are critical for calculating safe operating area during repetitive surge events.
SMA5J30HE3/61 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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J30HE3/61 FAQ
1.How can I place an order for SMA5J30HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30HE3/61 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 SMA5J30HE3/61 reliable?
The price and inventory of SMA5J30HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J30HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30HE3/61?
SMA5J30HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30HE3/61 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 SMA5J30HE3/61?
For technical support, including SMA5J30HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30HE3/61 requirements.
6.How does Aetrix verify that SMA5J30HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J30HE3/61 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 SMA5J30HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J30HE3/61?
All SMA5J30HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30HE3/61, 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 SMA5J30HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J30HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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