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Vishay General Semiconductor - Diodes Division SMA5J30AHM3/H
- Part No.:
- SMA5J30AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30AHM3/H.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,100
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Product details
Overview
SMA5J30AHM3/H from Vishay General Semiconductor is a unidirectional 30 V standoff Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 500 W peak pulse power, 10.3 A peak pulse current at 48.4 V clamping voltage, and designed for automotive-grade surge protection on power rails and signal lines.
For engineers reviewing the SMA5J30AHM3/H datasheet, SMA5J30AHM3/H pinout, SMA5J30AHM3/H application, or SMA5J30AHM3/H equivalent, this part delivers AEC-Q101 qualified transient suppression with halogen-free RoHS compliance, low-profile surface-mount compatibility, and verified clamping performance under 10/1000 µs surges in industrial and automotive electronics.
Technical Context
This TVS diode operates as a unidirectional clamping device with a 30 V reverse stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA test current, and clamps transients to ≤48.4 V at 10.3 A peak pulse current. It features glass-passivated junction and meets MSL Level 1 reflow requirements up to 260 °C.
Designed for high-energy transient suppression, it sustains non-repetitive 40 A forward surge current (IFSM) and operates across –55 °C to +150 °C junction temperature range. Its thermal resistance is 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), enabling reliable power dissipation on standard PCB copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 33.3 V / 36.8 V - Breakdown occurs within this range at 1 mA, ensuring predictable turn-on threshold |
| VC @ IPPM | 48.4 V - Clamped voltage during 10.3 A 10/1000 µs surge, defining worst-case overvoltage seen by protected circuit |
| PPPM | 500 W - Peak pulse power handling capability under standardized 10/1000 µs waveform |
| ID @ VWM | 1.0 µA - Reverse leakage at 30 V, minimizing standby power loss in battery-powered systems |
| TJ max. | +150 °C - Maximum junction temperature, supporting operation in under-hood automotive environments |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with cathode band marking, compatible with automated placement |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive surge events when cathode is biased higher |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to higher-potential rail (e.g., VBUS); initiates avalanche conduction when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for global automotive and industrial OEMs |
| Low incremental surge resistance | Enables tighter clamping voltage margin and reduced stress on downstream MOSFETs or ICs |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing without baking, simplifying SMT manufacturing |
| Glass passivated junction | Improves long-term reliability and stability of breakdown voltage under thermal cycling and humidity |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges above 30 V. Use Value: Limits transient voltage to ≤48.4 V, safeguarding 36 V-rated CAN transceivers and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients before reaching ADC input stage. Use Value: Sub-1 ns response time and 1.0 µA leakage preserve signal integrity and minimize offset drift in precision measurement circuits. |
| Telecom DC Power Input Protection | Consumer USB-C Port Surge Suppression |
Use Scenario: Safeguarding PoE-powered network switches against induced lightning surges on 48 V DC input. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail upstream of DC/DC converter. Use Value: 500 W PPPM rating handles multi-kV transients while maintaining stable 30 V stand-off for upstream rectifier stages. |
Use Scenario: Adding robustness to USB-C receptacles against hot-plug and ESD events per IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to suppress positive-going surges while allowing normal 5–20 V operation. Use Value: 48.4 V clamping ensures safe operation with USB PD 3.0 controllers rated to 28 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30AHE3/H | Same electrical specs; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification | Suitable for commercial/industrial use only; not approved for automotive under-hood deployment | Select SMA5J30AHE3/H where halogen-free requirement is waived and automotive qualification is unnecessary |
| SMA6J30A-M3/H | 600 W PPPM rating, 11.7 A IPPM, same VWM/VBR/VC; larger thermal mass due to SMA6J package (DO-214AB) | Better suited for higher-energy surge environments; requires different PCB footprint and pad layout | Choose SMA6J30A-M3/H when system-level surge testing exceeds 500 W requirements or thermal derating margins are tight |
Compared with SMA5J30AHM3/H, SMA5J30AHE3/H offers identical clamping performance without halogen-free or automotive qualification, while SMA6J30A-M3/H provides 20 % higher surge power handling at the cost of larger board area and revised layout-making SMA5J30AHM3/H optimal for space-constrained AEC-Q101-compliant designs.
Availability
SMA5J30AHM3/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor modules, and telecom power supply inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J30AHM3/H 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, efficiency, and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in automotive and industrial systems, delivering AEC-Q101 qualified performance in compact surface-mount packages for robust front-end protection.
FAQ
What is the clamping voltage of the SMA5J30AHM3/H under a 10/1000 µs surge?
The SMA5J30AHM3/H clamps to a maximum of 48.4 V when subjected to its rated 10.3 A peak pulse current under the standardized 10/1000 µs waveform. This value is measured at the device terminals with specified mounting conditions (0.2" × 0.2" copper pads), and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J30AHM3/H maintains this clamping performance across its operational temperature range.
Is the SMA5J30AHM3/H qualified for automotive applications?
Yes, the SMA5J30AHM3/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation revision 09-Jan-2024 (Document Number: 88875). This qualification validates its reliability for automotive use cases including engine control, body electronics, and ADAS sensor interfaces, with testing covering temperature cycling, humidity bias, and mechanical shock per AEC-Q101 standards.
What does the "HM3" suffix indicate in SMA5J30AHM3/H?
The "HM3" suffix in SMA5J30AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from "E3" (RoHS only) and "HE3" (RoHS + AEC-Q101, not halogen-free). The "H" prefix in the packaging code confirms halogen-free molding compound, while "M3" specifies the lead finish and compliance level per JESD201 Class 2 whisker testing.
How does the SMA5J30AHM3/H differ from bidirectional variants like SMA5J30CA?
The SMA5J30AHM3/H is unidirectional and features a cathode band for polarity identification, whereas SMA5J30CA is bidirectional with no polarity marking and symmetrical clamping in both directions. Electrically, SMA5J30AHM3/H has a 30 V stand-off in reverse bias only, while SMA5J30CA provides 30 V stand-off in either direction-making SMA5J30AHM3/H appropriate for DC rail protection and SMA5J30CA better suited for AC-coupled or differential signal lines.
What is the maximum operating temperature for the SMA5J30AHM3/H?
The SMA5J30AHM3/H has a maximum junction temperature (TJ max.) of +150 °C and an operating junction/storage temperature range of –55 °C to +150 °C. This rating enables deployment in under-hood automotive environments and high-temperature industrial enclosures. Derating of peak pulse power begins above TA = 25 °C per Figure 2 in the datasheet, with 50 % power capability retained at +100 °C ambient on standard PCB pads.
SMA5J30AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J30AHM3/H FAQ
1.How can I place an order for SMA5J30AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30AHM3/H 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 SMA5J30AHM3/H reliable?
The price and inventory of SMA5J30AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30AHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J30AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30AHM3/H?
SMA5J30AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30AHM3/H 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 SMA5J30AHM3/H?
For technical support, including SMA5J30AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30AHM3/H requirements.
6.How does Aetrix verify that SMA5J30AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J30AHM3/H 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 SMA5J30AHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J30AHM3/H?
All SMA5J30AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30AHM3/H, 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 SMA5J30AHM3/H part is unused and in its original packaging.
Return procedure for SMA5J30AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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