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Vishay General Semiconductor - Diodes Division SMA5J9.0CAHM3/H
- Part No.:
- SMA5J9.0CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0CAHM3/H.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,180
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Product details
Overview
SMA5J9.0CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 9.0 V stand-off voltage (VWM), 15.4 V clamping voltage (VC) at 32.5 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J9.0CAHM3/H datasheet, SMA5J9.0CAHM3/H pinout, SMA5J9.0CAHM3/H application, or SMA5J9.0CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, halogen-free RoHS compliance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its bidirectional symmetry ensures identical electrical characteristics in both polarities, with breakdown voltage (VBR) specified between 10.0 V and 11.1 V at 1 mA test current.
Thermal performance is defined by RθJA = 80 °C/W and RθJL = 25 °C/W, enabling reliable operation up to TJ = +150 °C. The SMA (DO-214AC) package supports JEDEC-compliant reflow profiles with peak temperature of 260 °C (MSL Level 1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 10.0 V / 11.1 V at 1 mA - Ensures consistent breakdown threshold across production lots |
| VC @ IPPM | 15.4 V at 32.5 A - Limits protected circuit voltage during 500 W surge events |
| PPPM | 500 W - Peak pulse power handling per 10/1000 μs standard waveform |
| IPPM | 32.5 A - Maximum non-repetitive surge current the device safely clamps |
| TJ max | +150 °C - Junction temperature limit defining thermal derating envelope |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height |
Pinout & Package
Package: SMA (DO-214AC), bidirectional configuration with no polarity marking; molded compound meets UL 94 V-0; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical bidirectional clamping behavior - either terminal serves as input or return under surge conditions |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides thermal path to PCB copper pads (min. 5.0 mm × 5.0 mm per terminal) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Halogen-free & RoHS-compliant | HM3 suffix denotes full compliance with IEC 61249-2-21 and JEDEC J-STD-20E |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = 5.4 V) and reduced let-through energy |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without dry-bag storage or baking |
| Glass passivated junction | Improves long-term stability and leakage control (<1.0 μA at VWM) over temperature |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Maintains signal integrity under 500 W transients while meeting AEC-Q101 requirements for under-hood deployment. |
Use Scenario: Safeguarding 24 V DC digital input modules against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary surge suppression element across input terminals, coordinated with upstream fuse and downstream filtering. Use Value: Enables robust 24 V system operation with <1.0 μA leakage at rated VWM, minimizing false triggering in high-impedance sensing circuits. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Shielding Ethernet PHY front-end and PoE-powered device interfaces from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Common-mode TVS pair (two SMA5J9.0CAHM3/H devices) across differential pairs to suppress asymmetric transients. Use Value: Delivers 15.4 V clamping at 32.5 A with symmetrical VBR tolerance (±5.5%), ensuring balanced protection on twisted-pair lines. |
Use Scenario: Secondary-side transient suppression on 5–12 V DC outputs of wall adapters exposed to user-handling ESD and cable coupling. IC Role / Device Role / Timing Role: Final-stage clamping device mounted adjacent to output connector to absorb residual surges escaping primary-side MOVs. Use Value: Halogen-free construction satisfies IEC 62368-1 flame-retardant requirements while maintaining 500 W surge capacity in compact SMA footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J9.0CAHE3/H | RoHS-compliant but not halogen-free; same electrical specs and AEC-Q101 qualification | Acceptable where halogen content is unrestricted (e.g., commercial industrial equipment) | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 remains mandatory |
| SMA6J9.0CAHM3/H | 600 W PPPM, higher IPPM (36.7 A), identical VWM/VC, same package and AEC-Q101 status | Better suited for systems requiring margin above 500 W (e.g., heavy-duty vehicle alternator load dump) | Choose when design margin demands >500 W surge handling without changing layout or footprint |
Compared with SMA5J9.0CAHM3/H, SMA5J9.0CAHE3/H offers identical protection performance without halogen-free assurance, while SMA6J9.0CAHM3/H delivers 20 % higher surge power headroom in the same SMA package - enabling direct upgrade paths for evolving system-level surge test requirements.
Availability
SMA5J9.0CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply with guaranteed AEC-Q101 qualification and halogen-free compliance.
Supply support for SMA5J9.0CAHM3/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 space-constrained, high-reliability environments - particularly targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and robust surge immunity.
FAQ
What is the clamping voltage of the SMA5J9.0CAHM3/H under maximum surge conditions?
The SMA5J9.0CAHM3/H has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current of 32.5 A using the 10/1000 μs waveform. This value is measured at TA = 25 °C on minimum recommended pad layout and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J9.0CAHM3/H maintains this clamping performance consistently due to its low incremental surge resistance and glass-passivated junction.
Is the SMA5J9.0CAHM3/H suitable for automotive applications?
Yes, the SMA5J9.0CAHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets stress tests including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D. The SMA5J9.0CAHM3/H is explicitly intended for under-hood and chassis-mounted electronics where sustained operation up to +150 °C junction temperature and immunity to load dump transients are required.
How does the bidirectional configuration of SMA5J9.0CAHM3/H affect its circuit implementation?
The SMA5J9.0CAHM3/H has symmetrical electrical characteristics in both directions, meaning it clamps equally for positive and negative transients without polarity marking on the package. This allows placement across any two points needing bidirectional protection - such as data lines, AC inputs, or ungrounded power rails - without orientation constraints. The SMA5J9.0CAHM3/H eliminates the need for dual unidirectional devices or careful anode/cathode alignment during layout or assembly.
What is the thermal resistance of SMA5J9.0CAHM3/H, and how does it impact PCB layout?
The SMA5J9.0CAHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead (RθJL) of 25 °C/W. To achieve rated 500 W pulse power, the datasheet specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad area increases thermal impedance, derating pulse capability; the SMA5J9.0CAHM3/H requires adherence to this layout for full specification compliance under repetitive surge conditions.
Does SMA5J9.0CAHM3/H have moisture sensitivity limitations for SMT assembly?
No - the SMA5J9.0CAHM3/H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be processed through standard lead-free reflow profiles without pre-baking or dry-pack storage. Its maximum peak reflow temperature is 260 °C, fully compatible with IPC/JEDEC J-STD-020D.3 requirements. This simplifies manufacturing logistics and reduces handling overhead for the SMA5J9.0CAHM3/H in high-volume SMT lines.
SMA5J9.0CAHM3/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:
- -
- Bidirectional Channels:
- 1
- 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)
SMA5J9.0CAHM3/H FAQ
1.How can I place an order for SMA5J9.0CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/H reliable?
The price and inventory of SMA5J9.0CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J9.0CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J9.0CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0CAHM3/H?
SMA5J9.0CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/H?
For technical support, including SMA5J9.0CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0CAHM3/H requirements.
6.How does Aetrix verify that SMA5J9.0CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J9.0CAHM3/H?
All SMA5J9.0CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/H part is unused and in its original packaging.
Return procedure for SMA5J9.0CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0CAHM3/H Tags
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