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Vishay General Semiconductor - Diodes Division SMA5J30HE3/5A
- Part No.:
- SMA5J30HE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30HE3/5A.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,580
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Product details
Overview
SMA5J30HE3/5A 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, 500 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J30HE3/5A datasheet, SMA5J30HE3/5A pinout, SMA5J30HE3/5A application, or SMA5J30HE3/5A equivalent, key selection criteria include clamping performance under 10/1000 µs transients, thermal resistance (RθJA = 80 °C/W), RoHS-compliant AEC-Q101 qualification, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its electrical characteristics are specified at 25 °C with derating above TA = 25 °C per Figure 2, and it is rated for non-repetitive 10/1000 µs surges up to 500 W when mounted on minimum recommended pad layout.
The SMA5J30HE3/5A is explicitly designated as AEC-Q101 qualified (HE3 suffix), meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity is marked by a cathode band; no marking applies to bi-directional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 48.4 V - Clamped voltage at 10.3 A peak pulse current; determines maximum protected circuit stress during surge. |
| PPPM | 500 W - Peak pulse power handling (10/1000 µs waveform); defines single-event energy absorption capability. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; informs board-level thermal design for sustained surge duty cycles. |
| TJ max | +150 °C - Maximum junction temperature; sets upper limit for ambient + self-heating in high-power applications. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile case with molded UL 94 V-0 compound. Cathode indicated by a band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., ground or return path). |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., 30 V supply rail); conducts during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress. |
| MSL Level 1 rating | Enables standard SMT reflow without pre-baking; compatible with peak temperatures up to 260 °C. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses), improving clamping fidelity. |
| J-STD-002/JESD 22-B102 solderability | Guarantees robust intermetallic formation and wetting on PCB pads under industrial assembly conditions. |
| JESD 201 Class 2 whisker resistance (HE3) | Prevents tin whisker growth under high-humidity, high-temperature storage-critical for automotive under-hood use. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 30 V battery-fed ECUs (e.g., body control modules) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 30 V rail and chassis ground to clamp transients exceeding VWM. Use Value: Limits voltage seen by downstream regulators and microcontrollers to ≤48.4 V during 500 W surges, preventing latch-up or gate oxide damage. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure or temperature sensors) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS connected across differential signal pair or single-ended output to ground to absorb ESD and switching noise. Use Value: Maintains signal integrity by clamping fast transients (<1 ns rise time) while adding only 1.2 pF typical junction capacitance at zero bias. |
| Telecom DC Power Input Protection | Consumer Device USB Power Port Protection |
Use Scenario: Securing 30 V DC input of PoE-powered network switches against induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of DC-DC converters and hot-swap controllers. Use Value: Absorbs 500 W peak energy without failure, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) requirements. | Use Scenario: Hardening 5 V–30 V USB-C PD power delivery paths in portable monitors or docking stations against user-induced ESD and cable coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line to prevent overvoltage propagation into PD controller ICs and port protection switches. Use Value: Provides <800 µA leakage at 30 V (VWM) and clamps to 48.4 V within nanoseconds-preserving USB enumeration timing and power negotiation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30A-E3/5A | Commercial-grade (E3), not AEC-Q101 qualified; identical electrical specs and DO-214AC package. | Lacks automotive qualification; suitable for industrial/commercial systems where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and full qualification traceability is unnecessary. |
| SMC5J30AHE3/5A | Same VWM/VC, but in larger DO-214AB (SMC) package; RθJA = 35 °C/W vs. 80 °C/W; 1500 W PPPM. | Higher power handling and better thermal dissipation; requires larger PCB footprint and different pad layout. | Choose when system-level surge tests exceed 500 W or sustained pulse repetition demands lower junction temperature rise. |
Compared with SMA5J30A-E3/5A, the SMA5J30HE3/5A adds AEC-Q101 validation and JESD 201 Class 2 whisker resistance-essential for automotive deployment-while maintaining identical clamping and surge ratings. Against SMC5J30AHE3/5A, it trades 3× lower PPPM and higher thermal resistance for 40% smaller board area and compatibility with dense SMT layouts.
Availability
SMA5J30HE3/5A is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power input stages requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for SMA5J30HE3/5A 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 for high-power-density transient suppression in space-constrained, high-reliability applications-including automotive power distribution, industrial control I/O, and telecom infrastructure-where fast clamping and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the SMA5J30HE3/5A at its rated peak pulse current?
The SMA5J30HE3/5A clamps to a maximum of 48.4 V at its specified peak pulse current of 10.3 A under a 10/1000 µs waveform. This value is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per the datasheet test condition and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the SMA5J30HE3/5A suitable for automotive applications?
Yes, the SMA5J30HE3/5A is explicitly AEC-Q101 qualified, as confirmed by the HE3 suffix and documentation in Vishay's 88875 datasheet. It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias, and ESD-to meet automotive reliability requirements for under-hood and body electronics.
What does the "HE3" suffix indicate in SMA5J30HE3/5A?
The "HE3" suffix denotes two critical attributes: RoHS compliance (E3) and AEC-Q101 qualification (H). Additionally, the HE3 variant meets JESD 201 Class 2 whisker resistance, making SMA5J30HE3/5A appropriate for high-humidity, high-temperature automotive environments where tin whisker mitigation is essential.
How does the thermal performance of SMA5J30HE3/5A compare to larger-package alternatives?
The SMA5J30HE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W in the DO-214AC (SMA) package. In contrast, the functionally similar SMC5J30AHE3/5A in DO-214AB (SMC) offers RθJA = 35 °C/W-enabling higher average power handling-but requires significantly more PCB area and different layout.
Can SMA5J30HE3/5A be used in bi-directional configurations?
No, SMA5J30HE3/5A is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and presence of a cathode band. Bi-directional operation requires the CA variant (e.g., SMA5J30CA), which lacks polarity marking and exhibits symmetrical clamping in both directions.
SMA5J30HE3/5A 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:
- 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)
SMA5J30HE3/5A FAQ
1.How can I place an order for SMA5J30HE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30HE3/5A 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 SMA5J30HE3/5A reliable?
The price and inventory of SMA5J30HE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30HE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J30HE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30HE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30HE3/5A?
SMA5J30HE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30HE3/5A 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 SMA5J30HE3/5A?
For technical support, including SMA5J30HE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30HE3/5A requirements.
6.How does Aetrix verify that SMA5J30HE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J30HE3/5A 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 SMA5J30HE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J30HE3/5A?
All SMA5J30HE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30HE3/5A, 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 SMA5J30HE3/5A part is unused and in its original packaging.
Return procedure for SMA5J30HE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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