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Vishay General Semiconductor - Diodes Division SMCJ5.0AHM3/I
- Part No.:
- SMCJ5.0AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0AHM3/I.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,182
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Product details
Overview
SMCJ5.0AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 5.0 V stand-off voltage (VWM), 6.40–7.07 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (PPPM), and clamps transients to ≤9.2 V at 163 A (10/1000 µs waveform), making it suitable for automotive power supply input protection.
For engineers reviewing the SMCJ5.0AHM3/I datasheet, SMCJ5.0AHM3/I pinout, SMCJ5.0AHM3/I application, or SMCJ5.0AHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), low clamping ratio (VC/VBR ≈ 1.33), and compatibility with automated SMT assembly on standard PCB pad layouts per JEDEC DO-214AB.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to divert surge current away from protected circuitry. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive transient stress.
Designed for high-energy transient suppression, the SMCJ5.0AHM3/I delivers 1500 W peak pulse power handling with a low incremental surge resistance and fast response time (<1 ns), enabling effective protection against ISO 7637-2 load dump and EFT/burst events in 12 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin for reliable standby operation. |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Tight breakdown window ensures predictable turn-on and minimal overshoot during surge events. |
| VC @ IPPM | ≤9.2 V at 163 A (10/1000 µs) - Clamping voltage defines worst-case stress on downstream ICs; enables safe protection of 5 V logic interfaces. |
| PPPM | 1500 W - Peak surge energy absorption capacity; supports compliance with IEC 61000-4-5 Level 4 (4 kV/2 Ω) when properly mounted. |
| ID @ VWM | 1000 µA max - Low leakage preserves battery life in always-on automotive modules and avoids false triggering. |
| TJ max | +150 °C - Enables operation in under-hood environments without derating in most thermal layouts. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for full 1500 W rating. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, MSL Level 1 (260 °C peak reflow), UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line (e.g., +12 V rail); conducts avalanche current to ground during overvoltage. |
| Anode | Reference/ground return | Connected to system ground plane; forms low-inductance path for surge current return to source. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per JESD22-A108. |
| Halogen-free & RoHS | HM3 suffix confirms halogen-free molding compound and lead finish meeting JEDEC J-STD-201 Class 2 whisker resistance. |
| Low clamping ratio | VC/VBR ≈ 1.33 ensures minimal overvoltage exposure to protected ICs-critical for 5 V microcontrollers and CAN transceivers. |
| Fast response time | <1 ns turn-on enables suppression of nanosecond-scale ESD and EFT transients before sensitive nodes are stressed. |
| Automated placement compatible | Standard SMC footprint and lead geometry support high-yield pick-and-place with IPC-A-610 Class 3 process control. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and bulk capacitor. Use Value: Limits transient voltage to ≤9.2 V, preventing damage to 12 V-rated DC-DC converters and microcontroller power supplies. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Point-of-entry protection on twisted-pair or coaxial signal lines entering industrial PLC modules. Use Value: Sub-10 V clamping prevents latch-up or gate oxide rupture in op-amps and ADC front-ends operating at ±5 V or 3.3 V. |
| Consumer USB Power Port Protection | Telecom DC Feeder Line Protection |
Use Scenario: Safeguarding USB-C PD power delivery circuits from hot-plug transients and reverse polarity faults. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VBUS line upstream of buck controller and load switch. Use Value: Withstands 1500 W surges while maintaining <1 µA leakage at 5 V, preserving USB enumeration integrity and low-power standby modes. | Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, access points) from lightning-induced surges on 48 V DC feeder lines. IC Role / Device Role / Timing Role: Secondary-level TVS on DC input stage, coordinated with primary GDT or MOV protection. Use Value: Fast clamping action complements slower primary protectors, reducing let-through energy to <100 mJ for IEEE 802.3bt compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-M3/A | Lower PPPM (400 W), SMA package (smaller thermal mass), same VWM/VBR range. | Not suitable for 1500 W load dump; limited to lower-energy ESD/EFT in space-constrained consumer designs. | Select when board area is critical and surge threat level is ≤IEC 61000-4-2 Level 4 (8 kV contact). |
| SMCJ5.0AHE3_A/I | Same electrical specs and package, but RoHS-compliant commercial grade (E3) without AEC-Q101 qualification or halogen-free compound. | Lacks automotive qualification; not approved for under-hood or safety-critical vehicle subsystems. | Use only in non-automotive industrial or computing applications where AEC-Q101 is not mandated. |
Compared with SMAJ5.0A-M3/A and SMCJ5.0AHE3_A/I, the SMCJ5.0AHM3/I uniquely combines 1500 W surge capability, AEC-Q101 qualification, and halogen-free construction-making it the sole choice for production automotive modules requiring full ISO 16750-2 and IATF 16949 compliance.
Availability
SMCJ5.0AHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feeders requiring stable component supply across extended product lifecycles.
Supply support for SMCJ5.0AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series was developed specifically for high-energy transient suppression in harsh-environment applications-including automotive power distribution, industrial automation, and infrastructure communications-where consistent clamping behavior and long-term stability are mandatory.
FAQ
What is the maximum clamping voltage of the SMCJ5.0AHM3/I under a 10/1000 µs surge?
The SMCJ5.0AHM3/I has a maximum clamping voltage (VC) of 9.2 V when subjected to its rated peak pulse current of 163 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions (mounted on 8.0 mm × 8.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ5.0AHM3/I maintains this clamping performance across its full operating temperature range.
Is the SMCJ5.0AHM3/I qualified for automotive use?
Yes, the SMCJ5.0AHM3/I carries the HM3 suffix, indicating it is both halogen-free and AEC-Q101 qualified. This certification covers stress tests including high-temperature reverse bias, temperature cycling, and surge endurance-validating its suitability for automotive applications such as body control modules, ADAS sensors, and infotainment power supplies. The SMCJ5.0AHM3/I meets requirements for under-hood deployment up to +150 °C junction temperature.
How does the SMCJ5.0AHM3/I differ from the SMCJ5.0A-E3/57T?
The SMCJ5.0AHM3/I and SMCJ5.0A-E3/57T share identical electrical specifications and SMC package, but differ in qualification and material content: SMCJ5.0AHM3/I is halogen-free and AEC-Q101 qualified (HM3), whereas SMCJ5.0A-E3/57T is RoHS-compliant commercial grade (E3) without automotive qualification. The SMCJ5.0AHM3/I also uses a different tape-and-reel packaging format (I = 13-inch reel, 3500 units) versus 57T (7-inch reel, 850 units). Both are valid for the SMCJ5.0AHM3/I part number in design-in contexts requiring automotive compliance.
What is the thermal resistance of the SMCJ5.0AHM3/I, and how does it affect layout?
The SMCJ5.0AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 8.0 mm × 8.0 mm copper pad per terminal. This value assumes no additional heatsinking; larger copper areas or internal layers reduce RθJA significantly. For sustained power dissipation near its 6.5 W rating, designers must ensure adequate PCB copper area and avoid thermal bottlenecks-especially in sealed automotive enclosures where ambient temperatures exceed 85 °C. The SMCJ5.0AHM3/I's RθJL of 15 °C/W further emphasizes the importance of low-inductance, wide-trace connections to ground.
Can the SMCJ5.0AHM3/I be used in bidirectional configurations?
No, the SMCJ5.0AHM3/I is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix and presence of a cathode band. Bidirectional operation requires the CA variant (e.g., SMCJ5.0CA), which lacks polarity marking and exhibits symmetrical clamping in both directions. Using the SMCJ5.0AHM3/I in reverse-biased configurations risks permanent failure due to forward conduction during negative transients. For AC or differential signal protection, select the explicitly bidirectional SMCJ5.0CA-HM3/I variant instead of relying on the SMCJ5.0AHM3/I.
SMCJ5.0AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMC)
SMCJ5.0AHM3/I FAQ
1.How can I place an order for SMCJ5.0AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0AHM3/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 SMCJ5.0AHM3/I reliable?
The price and inventory of SMCJ5.0AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0AHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ5.0AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0AHM3/I?
SMCJ5.0AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0AHM3/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 SMCJ5.0AHM3/I?
For technical support, including SMCJ5.0AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0AHM3/I requirements.
6.How does Aetrix verify that SMCJ5.0AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0AHM3/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 SMCJ5.0AHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ5.0AHM3/I?
All SMCJ5.0AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0AHM3/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 SMCJ5.0AHM3/I part is unused and in its original packaging.
Return procedure for SMCJ5.0AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0AHM3/I Tags
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DESD3V3E1BL-7B
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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