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Vishay General Semiconductor - Diodes Division SMCJ150CAHM3/H
- Part No.:
- SMCJ150CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150CAHM3/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,625
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Product details
Overview
SMCJ150CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power rating, 150 V standoff voltage (VWM), and clamping voltage of 243 V at 6.2 A peak pulse current. It protects sensitive ICs and MOSFETs in automotive power systems, industrial sensor interfaces, and telecom line circuits.
For engineers reviewing the SMCJ150CAHM3/H datasheet, SMCJ150CAHM3/H pinout, SMCJ150CAHM3/H application, or SMCJ150CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJA = 75 °C/W) for board-level reliability under repetitive surge stress.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown junction to limit reverse voltage across protected lines. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity dependency in AC-coupled or floating signal paths.
Designed for 10/1000 μs surge waveforms per ANSI/IEEE C62.35, it delivers stable clamping up to 243 V while maintaining low incremental surge resistance and fast response time (<1 ns). The glass-passivated chip junction and MSL Level 1 moisture sensitivity rating support robust automated assembly and long-term field reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 167 V / 185 V at 1 mA - guaranteed breakdown threshold range for reliable turn-on margin |
| VC @ IPPM | 243 V at 6.2 A - clamped voltage during 10/1000 μs surge, defining worst-case overvoltage seen by downstream circuitry |
| PPPM | 1500 W - peak pulse power handling capacity, enabling protection against IEC 61000-4-5 Level 4 surges |
| TJ max | +150 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, guiding PCB copper pad sizing for thermal management |
| Package | SMC (DO-214AB) - surface-mount outline with 8.0 mm × 8.0 mm thermal pads, compatible with standard SMT reflow profiles |
Pinout & Package
SMCJ150CAHM3/H uses the SMC (DO-214AB) package: a 2-terminal surface-mount case with cathode/anode terminals on opposite ends and no polarity marking (bidirectional configuration). Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per Vishay's recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Completes clamping loop during positive or negative transients; symmetric with cathode |
| Cathode | Transient return path (bidirectional) | Completes clamping loop during positive or negative transients; symmetric with anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, HTRB) |
| Halogen-free & RoHS-compliant | Meets EU RoHS Directive 2011/65/EU and JEDEC J-STD-208 without brominated flame retardants |
| MSL Level 1 | Unlimited floor life at ≤30 °C/85 % RH, enabling direct placement without baking |
| Glass passivated junction | Enhances long-term stability of breakdown voltage and leakage current under thermal cycling |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 12 V/24 V battery-fed ECUs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail to clamp surges up to ±100 V. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and CAN transceivers during ISO 16750-2 tests. | Use Scenario: Shielding analog outputs (4–20 mA, 0–10 V) of pressure/temperature sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on signal pair, referenced to local ground. Use Value: Maintains signal integrity below 1 % error band while surviving 8 kV contact ESD per IEC 61000-4-2. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Surge suppression on POTS or DSL line cards exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Primary-level protector between transformer secondary and codec IC. Use Value: Absorbs 1500 W 10/1000 μs surges without degradation, meeting GR-1089-CORE Level 3 requirements. | Use Scenario: Overvoltage safeguard for USB 2.0 data lines (D+/D−) in portable chargers and docking stations. IC Role / Device Role / Timing Role: Bidirectional clamping device placed differential across data pair. Use Value: Limits transient voltage to <25 V during 15 kV air discharge, preserving USB PHY functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-M3/86A | Lower PPPM (400 W), SMA package (smaller thermal mass), unidirectional only | Not suitable for AC or floating lines; limited to DC rail protection with defined polarity | Select when space-constrained and polarity is fixed; verify clamping margin at lower surge energy |
| SMCJ150AHE3_A/H | Same electrical specs but RoHS-compliant commercial grade (non-AEC-Q101), tin-lead termination option available | Lacks automotive qualification; acceptable for industrial/commercial designs without AEC validation | Choose for cost-sensitive non-automotive applications where AEC-Q101 is not mandated |
Compared with SMCJ150CAHM3/H, SMAJ150A-M3/86A offers smaller footprint but reduced surge capacity and polarity limitation, while SMCJ150AHE3_A/H matches performance but omits automotive qualification-making SMCJ150CAHM3/H the sole choice for AEC-Q101–required vehicle subsystems.
Availability
SMCJ150CAHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom line card prototyping requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCJ150CAHM3/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 and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments; SMCJ150CAHM3/H specifically serves automotive and industrial markets needing AEC-Q101–qualified, halogen-free TVS solutions with 1500 W surge capability.
FAQ
What does the "CA" suffix indicate in SMCJ150CAHM3/H?
The "CA" suffix denotes a bidirectional configuration: SMCJ150CAHM3/H provides symmetrical clamping for both positive and negative transients, unlike unidirectional variants (e.g., SMCJ150A). This eliminates polarity concerns in AC-coupled or floating circuits and enables use on differential signal lines or transformer-isolated interfaces without external biasing. The device has no cathode marking, consistent with its bidirectional function.
Is SMCJ150CAHM3/H qualified for automotive applications?
Yes, SMCJ150CAHM3/H is AEC-Q101 qualified, verified per stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and high-temperature reverse bias (HTRB). Its HM3 suffix confirms halogen-free, RoHS-compliant construction meeting automotive material requirements. This makes SMCJ150CAHM3/H suitable for engine control units, body electronics, and ADAS modules where qualification evidence is mandatory.
What is the clamping voltage of SMCJ150CAHM3/H under surge conditions?
The clamping voltage (VC) of SMCJ150CAHM3/H is 243 V at 6.2 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value defines the maximum voltage imposed on protected circuitry during standardized surge events. It is derived directly from Vishay's datasheet Table "ELECTRICAL CHARACTERISTICS" for SMCJ150A, confirmed applicable to SMCJ150CAHM3/H per family specification consistency.
How does the SMC (DO-214AB) package affect thermal performance of SMCJ150CAHM3/H?
The SMC (DO-214AB) package of SMCJ150CAHM3/H delivers RθJA = 75 °C/W and RθJL = 15 °C/W, enabling effective heat dissipation when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This thermal profile supports sustained operation at +150 °C junction temperature and allows SMCJ150CAHM3/H to handle repeated 1500 W surges without thermal runaway, provided PCB layout adheres to Vishay's recommended pad dimensions.
Can SMCJ150CAHM3/H replace SMCJ150A in existing designs?
No-SMCJ150CAHM3/H cannot directly replace unidirectional SMCJ150A without circuit review: SMCJ150CAHM3/H is bidirectional with no polarity marking, while SMCJ150A is unidirectional with cathode band. Substitution may cause incorrect clamping behavior on DC rails. If bidirectional protection is required, SMCJ150CAHM3/H is appropriate; if polarity-aware clamping is needed, retain SMCJ150A or select another unidirectional variant. Always verify layout and grounding topology before interchange.
SMCJ150CAHM3/H 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
SMCJ150CAHM3/H FAQ
1.How can I place an order for SMCJ150CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150CAHM3/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 SMCJ150CAHM3/H reliable?
The price and inventory of SMCJ150CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ150CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150CAHM3/H?
SMCJ150CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150CAHM3/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 SMCJ150CAHM3/H?
For technical support, including SMCJ150CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150CAHM3/H requirements.
6.How does Aetrix verify that SMCJ150CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ150CAHM3/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 SMCJ150CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ150CAHM3/H?
All SMCJ150CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150CAHM3/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 SMCJ150CAHM3/H part is unused and in its original packaging.
Return procedure for SMCJ150CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150CAHM3/H Tags
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