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Vishay General Semiconductor - Diodes Division SMA5J9.0AHM3/H
- Part No.:
- SMA5J9.0AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0AHM3/H.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,671
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Product details
Overview
SMA5J9.0AHM3/H 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 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), 15.4 V clamping voltage (VC) at 5.0 A peak pulse current, and 500 W peak pulse power rating - deployed in automotive sensor interfaces and industrial power supply rails.
For engineers reviewing the SMA5J9.0AHM3/H datasheet, SMA5J9.0AHM3/H pinout, SMA5J9.0AHM3/H application, or SMA5J9.0AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response to transients. Its 15.4 V clamping voltage at 5.0 A ensures robust protection of downstream MOSFETs and ICs against ISO 7637-2 and IEC 61000-4-5 compliant surges.
The device is rated for 150 °C maximum junction temperature and exhibits 80 °C/W junction-to-ambient thermal resistance when mounted per recommended pad layout. Its polarity is marked by a cathode band, and it meets JESD201 Class 2 whisker resistance and MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; sets threshold for normal operation in 9 V supply rails. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - Confirmed breakdown range ensures reliable turn-on during overvoltage events without premature conduction. |
| VC @ IPPM | 15.4 V at 5.0 A - Clamping voltage limits stress on protected circuitry during 10/1000 µs surge pulses. |
| PPPM | 500 W - Peak pulse power handling capacity supports high-energy transients common in automotive load-dump scenarios. |
| IFSM | 40 A - Non-repetitive forward surge current rating enables survival of 8.3 ms half-sine surges in power line protection. |
| TJ max. | 150 °C - Maximum junction temperature allows reliable operation in under-hood automotive environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by a band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to ground or lower-potential node; conducts during reverse-transient clamping. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line; reverse voltage applied here triggers clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control and ADAS sensor protection. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations and eliminates corrosive halogen emissions during PCB reflow or end-of-life processing. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V or 5 V logic interfaces. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without pre-baking, reducing manufacturing complexity and cost in high-volume SMT lines. |
Applications
| Automotive Sensor Protection | Industrial Power Supply Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between sensor signal line and ground, absorbing energy before it reaches the transceiver input stage. Use Value: Prevents latch-up or permanent damage to automotive-grade transceivers by limiting transient voltage to ≤15.4 V during 5 A 10/1000 µs surges. | Use Scenario: Safeguarding 9 V DC input stages of PLC I/O modules and motor drive controllers exposed to relay coil flyback and AC line coupling. IC Role / Device Role / Timing Role: Primary surge suppression element on the DC input rail, positioned upstream of bulk capacitance and LDO regulators. Use Value: Maintains system uptime by surviving repeated 500 W surges without degradation, validated per IEC 61000-4-5 Level 3 requirements. |
| Consumer Power Adapter Output | Telecom Line Interface |
Use Scenario: Secondary-side overvoltage protection on USB-C PD adapter outputs where 9 V PPS profiles are used. IC Role / Device Role / Timing Role: Fast-response clamping diode across output terminals to prevent overvoltage damage to connected devices during regulation failure. Use Value: Clamps within nanoseconds to ≤15.4 V, ensuring compliance with USB-IF overvoltage safety thresholds (<18 V) during fault conditions. | Use Scenario: Surge protection on low-voltage telecom interface cards (e.g., FXS/FXO) handling battery-backed 9 V signaling lines. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between tip/ring and ground to shunt lightning-induced surges on subscriber line interfaces. Use Value: Withstands 40 A single-half-sine surge (8.3 ms), meeting GR-1089-CORE Category A immunity requirements for central office equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J9.0AHE3/H | RoHS-compliant but not halogen-free; lacks HM3 environmental certification. | Approved for commercial automotive use but excluded from halogen-free BOMs (e.g., EU Tier 1 supplier mandates). | Select when halogen content is not restricted and cost optimization is prioritized over full green compliance. |
| SMA6J9.0A-HM3 | 600 W peak pulse power (vs. 500 W); identical VWM, VBR, and package; higher IPPM (6.0 A). | Better suited for systems requiring higher surge margin (e.g., 12 V battery rails with extended load-dump profiles). | Choose for enhanced robustness where board space allows same footprint and higher clamping energy tolerance is needed. |
Compared with SMA5J9.0AHM3/H, SMA5J9.0AHE3/H offers identical electrical performance but omits halogen-free assurance, while SMA6J9.0A-HM3 delivers 20 % higher surge power handling in the same SMA package - enabling design margin extension without layout change.
Availability
SMA5J9.0AHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial power supply inputs, and telecom line protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for SMA5J9.0AHM3/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, power density, and automotive qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive electronics, industrial controls, and telecom infrastructure where AEC-Q101 compliance and halogen-free construction are mandatory.
FAQ
What is the clamping voltage of the SMA5J9.0AHM3/H at its rated peak pulse current?
The SMA5J9.0AHM3/H 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/H maintains this clamping performance across its specified operating temperature range and is validated with the recommended 0.2" × 0.2" copper pad layout.
Is the SMA5J9.0AHM3/H qualified for automotive applications?
Yes, the SMA5J9.0AHM3/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in datasheet 88875 (Revision 09-Jan-2024). This qualification covers stress tests including HTGB, H3TRB, temperature cycling, and mechanical shock - making the SMA5J9.0AHM3/H suitable for engine control units, ADAS sensors, and body electronics where automotive-grade reliability is required.
What does the 'HM3' suffix indicate in SMA5J9.0AHM3/H?
The 'HM3' suffix in SMA5J9.0AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes the part from commercial-grade variants (E3/M3) and non-halogen-free automotive versions (HE3). The 'H' stands for AEC-Q101, 'M' for halogen-free, and '3' for RoHS compliance - all verified per Vishay's material categorization document 99912.
Can the SMA5J9.0AHM3/H be used in bidirectional configurations?
No, the SMA5J9.0AHM3/H is a unidirectional TVS diode, as indicated by its 'A' suffix and cathode band marking. Bidirectional variants use the 'CA' suffix (e.g., SMA5J9.0CA) and lack polarity marking. Using SMA5J9.0AHM3/H in bidirectional circuits would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the thermal resistance of the SMA5J9.0AHM3/H, and how does it affect layout design?
The SMA5J9.0AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on the minimum recommended 0.2" × 0.2" copper pads per terminal. This value assumes no additional thermal vias or plane extensions. To maintain TJ ≤ 150 °C under 500 W surge conditions, designers must ensure adequate copper area and avoid excessive ambient temperature rise - especially in enclosed automotive or industrial enclosures.
SMA5J9.0AHM3/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):
- 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/H FAQ
1.How can I place an order for SMA5J9.0AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0AHM3/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 SMA5J9.0AHM3/H reliable?
The price and inventory of SMA5J9.0AHM3/H 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/H is usually 5 days.
3.What payment methods are accepted for SMA5J9.0AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0AHM3/H?
SMA5J9.0AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0AHM3/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 SMA5J9.0AHM3/H?
For technical support, including SMA5J9.0AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0AHM3/H requirements.
6.How does Aetrix verify that SMA5J9.0AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0AHM3/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 SMA5J9.0AHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J9.0AHM3/H?
All SMA5J9.0AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0AHM3/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 SMA5J9.0AHM3/H part is unused and in its original packaging.
Return procedure for SMA5J9.0AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0AHM3/H Tags
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