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Vishay General Semiconductor - Diodes Division SMCJ150CAHE3_A/H
- Part No.:
- SMCJ150CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150CAHE3_A/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,178
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Product details
Overview
SMCJ150CAHE3_A/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 150 V standoff voltage (VWM), 243 V clamping voltage (VC) at 6.2 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM). It protects sensitive signal lines and power rails in automotive sensor interfaces, industrial I/O modules, and telecom line cards against lightning-induced transients and inductive switching spikes.
For engineers reviewing the SMCJ150CAHE3_A/H datasheet, SMCJ150CAHE3_A/H pinout, SMCJ150CAHE3_A/H application, or SMCJ150CAHE3_A/H equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for automotive-grade board-level ESD/surge hardening and long-term reliability validation.
Technical Context
The SMCJ150CAHE3_A/H operates as a silicon avalanche diode with symmetrical breakdown in both polarities, enabling robust protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR (167–185 V) and low leakage (<1.0 μA at VWM), while thermal resistance RθJA = 75 °C/W supports operation up to TJ = 150 °C under derated conditions.
Designed for 10/1000 μs waveform compliance per ANSI/IEEE C62.35, it delivers fast response time (<1.0 ns) and maintains clamping performance across temperature (VBR tempco = 0.108 %/°C), making it suitable for environments with wide ambient swings such as engine control units and outdoor base stations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 167 V / 185 V - Breakdown voltage range at 1 mA test current; ensures reliable turn-on within defined tolerance band. |
| VC @ IPPM | 243 V - Clamped voltage at 6.2 A peak pulse current; determines maximum stress imposed on downstream components during surge. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 μs waveform; quantifies single-event surge energy absorption capacity. |
| ID @ VWM | <1.0 μA - Reverse leakage current at rated standoff voltage; minimizes standby power loss and avoids false triggering. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive and high-temperature industrial enclosures. |
| Package | SMC (DO-214AB) - Surface-mount package with 8.0 mm × 8.0 mm copper pad layout requirement; supports automated assembly and thermal dissipation. |
Pinout & Package
SMCJ150CAHE3_A/H uses the SMC (DO-214AB) surface-mount package with two terminals and no polarity marking (bidirectional configuration). The device has no cathode/anode designation; both terminals are functionally identical for transient suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Surge Input/Output Node | Connects to line being protected (e.g., CAN_H or RS-485 A); carries full transient current during clamping event. |
| Terminal 2 | Surge Input/Output Node | Connects to complementary line (e.g., CAN_L or RS-485 B); completes symmetrical clamping path for differential surges. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC or floating differential signals (e.g., CAN, RS-485) without external polarity management. |
| AEC-Q101 qualification | Validated for automotive applications including powertrain and ADAS sensor interfaces requiring zero-failure field reliability. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving margin for downstream ICs with tight absolute maximum ratings. |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak, eliminating bake requirements in standard SMT lines. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage parameters across temperature and humidity stress conditions. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Network |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp absorbing ±100 V/10/1000 μs transients before they reach PHY layer. Use Value: Prevents latch-up or permanent damage to transceivers by limiting voltage to ≤243 V during 6.2 A surge events. | Use Scenario: Safeguarding differential data lines in factory automation PLCs connected to long cable runs susceptible to EFT and lightning coupling. IC Role / Device Role / Timing Role: Symmetrical surge shunt placed across A/B lines to maintain common-mode immunity and signal integrity. Use Value: Maintains <1.0 μA leakage at 150 V VWM, avoiding DC bias shift on termination resistors and preserving receiver thresholds. |
| Telecom Line Card Protection | Power Supply Input Stage |
Use Scenario: Front-end protection for PoE-powered Ethernet switches where DC bias and surge coexist on same pair. IC Role / Device Role / Timing Role: Standoff-rated TVS suppressing induced surges while remaining transparent to 48 V DC power delivery. Use Value: Withstands repeated 1500 W surges without degradation, supporting multi-year field deployment in outdoor infrastructure. | Use Scenario: Secondary-side overvoltage clamp on 150 V DC bus feeding motor drivers or SMPS controllers. IC Role / Device Role / Timing Role: Fast-acting crowbar element limiting transient excursions above 243 V to prevent MOSFET avalanche failure. Use Value: Delivers 243 V clamping at 6.2 A with 0.108 %/°C VBR tempco, ensuring consistent protection across -40 °C to +125 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CAHE3_A/H | Lower PPPM (600 W), smaller SMB package (DO-214AA), higher RθJA (90 °C/W) | Suitable only for lower-energy transients; limited to non-under-hood automotive or consumer-grade designs | Select when board space is constrained and surge threat level is ≤600 W. |
| SMCJ150AHE3_A/H | Unidirectional version; includes cathode band marking; identical VWM/VC/PPPM but asymmetric conduction | Requires polarity-aware placement; used where DC bias direction is fixed (e.g., DC power input rails) | Choose for unidirectional circuits like 150 V supply lines where reverse conduction must be blocked. |
Compared with SMBJ150CAHE3_A/H and SMCJ150AHE3_A/H, the SMCJ150CAHE3_A/H uniquely balances 1500 W surge capacity, bidirectional symmetry, and AEC-Q101 qualification - making it the preferred choice for high-reliability differential interface protection where polarity independence and automotive compliance are mandatory.
Availability
SMCJ150CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and telecom line card protection requiring stable component supply, long-lifecycle support, and traceable AEC-Q101 qualified parts.
Supply support for SMCJ150CAHE3_A/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, TVS devices, and MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What does the "CA" suffix indicate in SMCJ150CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration, meaning the SMCJ150CAHE3_A/H provides symmetrical transient voltage suppression in both polarities - essential for protecting AC-coupled or floating differential interfaces like CAN, RS-485, or Ethernet without requiring polarity alignment during placement.
Is SMCJ150CAHE3_A/H qualified for automotive applications?
Yes, SMCJ150CAHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure ("HE3" suffix) and documentation. This qualification validates its suitability for automotive powertrain, chassis, and ADAS systems where zero-failure reliability under thermal cycling, vibration, and surge stress is required.
What is the clamping voltage of SMCJ150CAHE3_A/H and why does it matter?
The clamping voltage (VC) of SMCJ150CAHE3_A/H is 243 V at 6.2 A peak pulse current. This value defines the maximum voltage seen by downstream components during a surge event - critical for ensuring protected ICs remain within their absolute maximum voltage ratings and avoid destructive overvoltage conditions.
How does the SMC (DO-214AB) package affect thermal performance of SMCJ150CAHE3_A/H?
The SMC (DO-214AB) package provides a thermal resistance of RθJA = 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads. This enables effective heat dissipation during repetitive surge events and supports continuous operation up to TJ = 150 °C - significantly enhancing reliability compared to smaller packages like SMB (RθJA = 90 °C/W).
Can SMCJ150CAHE3_A/H replace unidirectional TVS diodes in existing designs?
No - SMCJ150CAHE3_A/H is strictly bidirectional and lacks polarity marking; substituting it for a unidirectional part (e.g., SMCJ150AHE3_A/H) may cause unintended conduction in DC-biased circuits. Always verify circuit topology and bias conditions before replacement, as SMCJ150CAHE3_A/H is intended for AC or floating node protection only.
SMCJ150CAHE3_A/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:
- Active
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ150CAHE3_A/H FAQ
1.How can I place an order for SMCJ150CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150CAHE3_A/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 SMCJ150CAHE3_A/H reliable?
The price and inventory of SMCJ150CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ150CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150CAHE3_A/H?
SMCJ150CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150CAHE3_A/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 SMCJ150CAHE3_A/H?
For technical support, including SMCJ150CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150CAHE3_A/H requirements.
6.How does Aetrix verify that SMCJ150CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ150CAHE3_A/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 SMCJ150CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ150CAHE3_A/H?
All SMCJ150CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150CAHE3_A/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 SMCJ150CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ150CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150CAHE3_A/H Tags
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