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Vishay General Semiconductor - Diodes Division SMA5J9.0AHM3/I
- Part No.:
- SMA5J9.0AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0AHM3/I.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,838
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Product details
Overview
SMA5J9.0AHM3/I from Vishay General Semiconductor is a unidirectional 500 W Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, with 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), and 15.4 V clamping voltage (VC) at 5.0 A peak pulse current. It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SMA5J9.0AHM3/I datasheet, SMA5J9.0AHM3/I pinout, SMA5J9.0AHM3/I application, or SMA5J9.0AHM3/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HM3 suffix), 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ps) to transient overvoltages and low clamping ratio (VC/VBR ≈ 1.45). Its thermal resistance (RθJA = 80 °C/W) and RθJL = 25 °C/W support reliable operation under repetitive surge conditions when mounted per recommended pad layout.
The device complies with ANSI/IEEE C62.35 for surge testing and meets JESD201 Class 2 whisker resistance. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification-verified per stress test conditions including temperature cycling, HTRB, and ESD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 μA; sets upper limit for circuit bias without conduction. |
| VBR min/max | 10.0 V / 11.1 V at 1.0 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 15.4 V at 5.0 A - Clamped voltage during 10/1000 μs surge; defines worst-case overvoltage seen by protected downstream components. |
| PPPM | 500 W - Peak pulse power handling capability; determines survivability against standardized lightning/surge waveforms. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments with minimal derating. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with JEDEC-standard reflow profiles. |
Pinout & Package
SMA (DO-214AC) package with axial leads: cathode marked by band at one end; anode and cathode terminals are non-polarized in layout but functionally asymmetric due to unidirectional conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line (e.g., power rail); conducts surge current to ground when VIN > VBR. |
| Anode | Reference/return path | Typically tied to system ground; completes current path during clamping; must be low-impedance for effective suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including HTGB, TCT, and AC-H3TRB; supports 15-year vehicle lifecycle deployment. |
| Low incremental surge resistance | Enables tighter VC–VBR margin (1.45×) and lower let-through energy versus legacy TVS devices. |
| Glass passivated junction | Improves long-term stability of VBR and leakage under humidity and thermal cycling stress. |
| MSL Level 1 (260 °C peak) | Permits single-reflow assembly without moisture sensitivity concerns; eliminates bake-out requirement. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and DC-DC input stage. Use Value: Limits voltage excursion to ≤15.4 V during 100 V/100 ms surges, preventing damage to buck controller ICs rated for 20 V absolute max. |
Use Scenario: Protecting gate drivers from inductive kickback during IGBT switching in HVAC inverters. IC Role / Device Role / Timing Role: Fast-clamping TVS across half-bridge high-side driver supply pins. Use Value: Responds within <1 ns to 600 V spikes, clamping to 15.4 V before driver IC's 20 V VDD rating is exceeded. |
| Automotive Sensor Interface | Telecom DC Power Input |
Use Scenario: Guarding LIN bus transceivers against ESD and cable discharge events in door module assemblies. IC Role / Device Role / Timing Role: Standoff-rated TVS on VCC line upstream of transceiver LDO. Use Value: Maintains 9.0 V nominal supply while suppressing ±15 kV contact ESD per IEC 61000-4-2 with <500 ps response. |
Use Scenario: Safeguarding PoE-powered equipment front-end rectifiers from lightning-induced surges on 48 V DC input. IC Role / Device Role / Timing Role: Primary surge limiter on DC input before DC-DC converter and hot-swap controller. Use Value: Handles 500 W peak pulse without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J9.0AHE3/I | Same electrical specs; RoHS-compliant but not halogen-free or AEC-Q101 qualified. | Lacks automotive qualification; suitable for commercial/industrial use only. | Select when AEC-Q101 is not required and halogen-free material is not mandated. |
| SMA6J9.0A-M3 | 600 W PPPM, same VWM/VBR, larger SMA package variant (DO-214AC with thicker leads). | Higher surge margin for infrequent high-energy events; requires revised pad layout. | Choose when system-level surge testing exceeds 500 W requirements or longer lifetime under repeated stress is needed. |
Compared with SMA5J9.0AHM3/I, SMA5J9.0AHE3/I omits halogen-free and automotive qualification but reduces cost, while SMA6J9.0A-M3 trades higher power handling for increased board space and thermal mass-making SMA5J9.0AHM3/I optimal for space-constrained AEC-Q101 designs requiring exact 500 W compliance.
Availability
SMA5J9.0AHM3/I is available at Aetrix Electronics and suitable for automotive power modules, industrial motor drives, sensor interface circuits, and telecom DC inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J9.0AHM3/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, MOSFETs, and protection devices with emphasis on reliability, power density, and automotive-grade validation.
The SMA5J series is designed specifically for high-power-density transient suppression in harsh-environment applications-targeting automotive, industrial, and telecom systems where compact size, fast response, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the SMA5J9.0AHM3/I at its rated peak pulse current?
The SMA5J9.0AHM3/I has a maximum clamping voltage (VC) of 15.4 V at 5.0 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA5J9.0AHM3/I maintains this clamping performance across its full operating temperature range (−55 °C to +150 °C).
Is the SMA5J9.0AHM3/I qualified for automotive applications?
Yes, the SMA5J9.0AHM3/I is AEC-Q101 qualified, as confirmed by the HM3 suffix in its ordering code. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress testing (UHAST). The SMA5J9.0AHM3/I is intended for under-hood and body-control module applications where automotive reliability standards apply.
What does the "HM3" suffix mean in SMA5J9.0AHM3/I?
The "HM3" suffix in SMA5J9.0AHM3/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. "H" denotes halogen-free molding compound; "M3" specifies RoHS compliance and JESD201 Class 2 whisker resistance; the trailing "I" signifies 13-inch tape-and-reel packaging (7500 units per reel). This distinguishes it from E3 (RoHS only) and HE3 (AEC-Q101, non-halogen-free) variants.
Can the SMA5J9.0AHM3/I be used in bidirectional configurations?
No, the SMA5J9.0AHM3/I is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and presence of cathode band marking. Bidirectional operation requires CA-suffix parts like SMA5J9.0CA. Using SMA5J9.0AHM3/I in reverse-biased configurations risks permanent junction damage due to lack of symmetrical avalanche structure.
What is the thermal resistance of the SMA5J9.0AHM3/I, and how does it affect PCB layout?
The SMA5J9.0AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under 500 W surge loads, designers must adhere to this pad layout-reducing copper area increases RθJA and risks thermal runaway. The device's RθJL = 25 °C/W further emphasizes the need for robust thermal connection to internal ground planes.
SMA5J9.0AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 32.5A
- 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)
SMA5J9.0AHM3/I FAQ
1.How can I place an order for SMA5J9.0AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0AHM3/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 SMA5J9.0AHM3/I reliable?
The price and inventory of SMA5J9.0AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J9.0AHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J9.0AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0AHM3/I?
SMA5J9.0AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0AHM3/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 SMA5J9.0AHM3/I?
For technical support, including SMA5J9.0AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0AHM3/I requirements.
6.How does Aetrix verify that SMA5J9.0AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0AHM3/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 SMA5J9.0AHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J9.0AHM3/I?
All SMA5J9.0AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0AHM3/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 SMA5J9.0AHM3/I part is unused and in its original packaging.
Return procedure for SMA5J9.0AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0AHM3/I Tags
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