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Vishay General Semiconductor - Diodes Division SMA5J9.0CAHM3/I
- Part No.:
- SMA5J9.0CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0CAHM3/I.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,386
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Product details
Overview
SMA5J9.0CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection on signal and power lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA, 15.4 V clamping voltage (VC) at 5.0 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - used to safeguard automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMA5J9.0CAHM3/I datasheet, SMA5J9.0CAHM3/I pinout, SMA5J9.0CAHM3/I application, or SMA5J9.0CAHM3/I equivalent, key selection criteria include bidirectional polarity, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both forward and reverse directions, with identical electrical characteristics per polarity. Its glass-passivated junction ensures stable VBR tolerance and fast response time (<1 ns), while the low RθJA of 80 °C/W supports reliable thermal dissipation under repetitive surge conditions.
The device is rated for -55 °C to +150 °C operating junction temperature and meets J-STD-020 MSL Level 1 (260 °C peak reflow). The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification - critical for automotive-grade reliability in engine control units and ADAS sensor modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse stand-off voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR min/max | 10.0 V / 11.1 V at IT = 1 mA - tight breakdown range ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 15.4 V at 5.0 A - clamping voltage during 10/1000 μs surge; limits downstream voltage stress to safe levels. |
| PPPM | 500 W - peak pulse power handling capability; enables protection against high-energy transients like ISO 7637-2 Pulse 5a. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments. |
| Package | SMA (DO-214AC) - surface-mount package with 0.208" × 0.157" footprint; optimized for automated pick-and-place and reflow soldering. |
Pinout & Package
Two-terminal bidirectional device in SMA (DO-214AC) package; no polarity marking on body. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with cathode band omitted per bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical bidirectional clamping behavior; either terminal serves as input/output depending on transient polarity. |
| Case (anodic/cathodic junction) | Junction heat sink | Thermal path from silicon die to PCB copper pads; requires minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper area per terminal per datasheet fig. 2. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, infotainment, and ADAS sensor interfaces per stress test requirements. |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive environmental standards and JESD201 Class 2 whisker resistance; eliminates brominated flame retardants. |
| Low incremental surge resistance | Enables tighter VC/VBR ratio (15.4 V / 10.0 V = 1.54), reducing let-through energy during fast transients. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile up to 260 °C peak without baking preconditioning. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ISO 16750-2 load dump and ESD events. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching sensitive ICs. Use Value: Clamps transients to ≤15.4 V while sustaining 500 W peak power, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding PLC digital input modules and fieldbus terminations against inductive switching spikes from solenoids and relays. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input rails to limit voltage overshoot during coil de-energization. Use Value: Withstands 40 A non-repetitive surge (IFSM-equivalent) and maintains <1 μA leakage at 9.0 V, ensuring minimal standby power impact. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-side surge protection on Ethernet PHY power rails and RS-485 termination networks in base stations and edge routers. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) bidirectional clamp minimizing signal integrity degradation on high-speed lines. Use Value: Fast <1 ns response time captures sub-microsecond transients without affecting 100 Mbps data transmission integrity. |
Use Scenario: Input-stage overvoltage suppression in USB-C PD adapters and AC/DC front-end circuits exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping element upstream of bridge rectifier and bulk capacitor to absorb line-to-line and line-to-ground transients. Use Value: 500 W PPPM rating handles IEC 61000-4-5 Level 4 (4 kV) surges when combined with appropriate series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ9.0CA | Same VWM (9.0 V), VBR (10.0–11.1 V), and PPPM (400 W); lower peak pulse power rating than SMA5J9.0CAHM3/I's 500 W. | Approved for commercial/industrial use only; not AEC-Q101 qualified or halogen-free. | Select when automotive qualification and halogen-free compliance are not required; verify thermal margin for 500 W surge events. |
| ON Semiconductor 1.5KE9.1CA | Higher VWM (9.1 V), same bidirectional function, but through-hole DO-201 package; 1500 W PPPM but larger footprint and manual assembly required. | Used where board space allows and hand-soldering or wave soldering is acceptable; not suitable for high-density SMT designs. | Choose only if SMT constraints are relaxed and higher surge capacity justifies larger form factor and process overhead. |
Compared with SMAJ9.0CA and 1.5KE9.1CA, SMA5J9.0CAHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, 500 W SMT-rated surge capacity, and DO-214AC footprint - making it the optimal choice for space-constrained, automotive-grade, and environmentally regulated designs.
Availability
SMA5J9.0CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line interface surge suppression requiring stable component supply across extended production lifecycles.
Supply support for SMA5J9.0CAHM3/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, efficiency, and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in automotive, industrial, and telecom systems - delivering robust 500 W surge handling in compact surface-mount packages with AEC-Q101 validation.
FAQ
What does the "HM3" suffix indicate in SMA5J9.0CAHM3/I?
The "HM3" suffix in SMA5J9.0CAHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms compliance with JESD201 Class 2 whisker resistance, 260 °C MSL Level 1 reflow capability, and automotive-grade reliability testing - distinguishing it from commercial-grade M3 or E3 variants.
Is SMA5J9.0CAHM3/I suitable for protecting CAN FD bus lines?
Yes, SMA5J9.0CAHM3/I is suitable for CAN FD bus protection due to its bidirectional symmetry, low clamping voltage (15.4 V), and fast response time (<1 ns). Its 9.0 V VWM aligns with typical CAN FD common-mode voltage ranges, and the SMA package enables placement directly at connectors without compromising signal integrity.
How does SMA5J9.0CAHM3/I differ from unidirectional SMA5J9.0A?
SMA5J9.0CAHM3/I is bidirectional with identical clamping in both polarities and no cathode band marking, whereas SMA5J9.0A is unidirectional with cathode band and forward conduction capability. SMA5J9.0CAHM3/I supports AC-coupled or floating signal lines; SMA5J9.0A is limited to DC-biased applications with defined polarity.
What is the recommended PCB pad layout for SMA5J9.0CAHM3/I?
The recommended PCB pad layout for SMA5J9.0CAHM3/I is 0.2" × 0.2" (5.0 mm × 5.0 mm) copper area per terminal, as specified in Vishay document 88875 fig. 2. This minimizes thermal resistance (RθJA = 80 °C/W) and ensures reliable 500 W surge handling without junction overheating during transient events.
Does SMA5J9.0CAHM3/I meet ISO 7637-2 Pulse 5a requirements?
SMA5J9.0CAHM3/I supports ISO 7637-2 Pulse 5a (load dump) protection when properly implemented with series impedance and adequate PCB copper area. Its 500 W PPPM rating and 15.4 V clamping voltage enable effective suppression of the 60 V/100 ms transient, provided system-level design accounts for energy absorption and thermal decay.
SMA5J9.0CAHM3/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:
- -
- 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/I FAQ
1.How can I place an order for SMA5J9.0CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/I reliable?
The price and inventory of SMA5J9.0CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J9.0CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J9.0CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0CAHM3/I?
SMA5J9.0CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/I?
For technical support, including SMA5J9.0CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0CAHM3/I requirements.
6.How does Aetrix verify that SMA5J9.0CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J9.0CAHM3/I?
All SMA5J9.0CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0CAHM3/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 SMA5J9.0CAHM3/I part is unused and in its original packaging.
Return procedure for SMA5J9.0CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0CAHM3/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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