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Vishay General Semiconductor - Diodes Division SMCJ150AHE3_A/I
- Part No.:
- SMCJ150AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150AHE3_A/I.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,534
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Product details
Overview
SMCJ150AHE3_A/I from Vishay General Semiconductor is a unidirectional 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 150 V standoff voltage (VWM), 243 V maximum clamping voltage (VC) at 6.2 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive power electronics, industrial motor drives, and telecom interface protection.
For engineers reviewing the SMCJ150AHE3_A/I datasheet, SMCJ150AHE3_A/I pinout, SMCJ150AHE3_A/I application, or SMCJ150AHE3_A/I equivalent, key selection criteria include verified clamping performance under repetitive surge stress, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 167–185 V breakdown range (VBR) at 1 mA test current. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response (<1 ns), enabling suppression of ESD, lightning-induced transients, and inductive switching spikes.
Designed for surface-mount use in high-reliability environments, the SMCJ150AHE3_A/I meets MSL level 1 per J-STD-020 (peak reflow 260 °C), supports 200 A non-repetitive forward surge (IFSM), and maintains operation across -55 °C to +150 °C junction temperature range - critical for under-hood automotive and industrial control applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 167 V / 185 V at 1 mA - guaranteed avalanche onset window for predictable turn-on |
| VC @ IPPM | 243 V at 6.2 A - clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient energy absorption capability under standardized waveform |
| RθJA | 75 °C/W - thermal resistance defining junction-to-ambient temperature rise under 6.5 W steady-state dissipation |
| TJ max | +150 °C - maximum allowable junction temperature for sustained reliability in hot environments |
| Polarity | Unidirectional - cathode marked by band; blocks forward current until VF ≈ 3.5 V at 100 A |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; defines directionality of clamping |
| Cathode | Avalanche conduction terminal / Clamping output | Marked with band; sinks surge current to ground or rail when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage drift, and long-term stability under thermal stress |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive MOSFETs |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns or baking requirements |
| 1500 W PPPM rating | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly mounted on 8 mm × 8 mm copper pads |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges up to ±100 V. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤243 V, preventing latch-up or gate oxide damage. | Use Scenario: Safeguarding gate drivers and feedback sensors in variable-frequency AC motor inverters. IC Role / Device Role / Timing Role: Clamp induced spikes on isolated DC bus sensing lines and PWM gate traces. Use Value: Maintains signal integrity during IGBT switching by suppressing >1 kV/μs transients with <1 ns response. |
| Telecom Interface Surge Suppression | Consumer Power Adapter Input Stage |
Use Scenario: Shielding RS-485 transceivers and PoE injectors from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired bidirectionally (using CA variant) or unidirectionally (as SMCJ150AHE3_A/I) on data line pairs. Use Value: Achieves IEC 61000-4-5 compliance with clamping below transceiver absolute max ratings. | Use Scenario: Secondary-side overvoltage protection in universal-input AC/DC adapters after rectification. IC Role / Device Role / Timing Role: Standoff-rated TVS across bulk capacitor to absorb rectifier recovery spikes and line surges. Use Value: Prevents capacitor overvoltage failure and secondary-side MOSFET avalanche during brownout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150AHE3_A/I | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VWM/VBR/VC specs | Suitable for space-constrained consumer designs where 1500 W surge margin is not required | Select when board area is limited and peak surge energy is ≤600 W |
| SMCJ150CAHE3_A/I | Bidirectional version; identical VWM/VBR/VC but symmetric clamping in both polarities | Required for AC-coupled or differential signal lines where polarity reversal occurs | Choose for RS-485, CAN, or Ethernet PHY protection where bidirectional clamping is mandatory |
Compared with SMCJ150AHE3_A/I, SMBJ150AHE3_A/I trades surge capacity for footprint reduction, while SMCJ150CAHE3_A/I adds polarity symmetry at no clamping performance cost - enabling precise matching to unidirectional DC rail or bidirectional signal integrity needs.
Availability
SMCJ150AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, and telecom infrastructure requiring stable component supply with AEC-Q101 traceability and full RoHS compliance.
Supply support for SMCJ150AHE3_A/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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMCJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against ESD, lightning, and inductive switching is mission-critical.
FAQ
What is the clamping voltage of SMCJ150AHE3_A/I at its rated peak pulse current?
The SMCJ150AHE3_A/I has a maximum clamping voltage (VC) of 243 V when subjected to its specified peak pulse current (IPPM) of 6.2 A under a 10/1000 μs waveform. This value is measured at the device terminals with recommended PCB layout (0.31" × 0.31" copper pads per terminal), ensuring consistent protection performance in production designs. The SMCJ150AHE3_A/I maintains this clamping behavior across its operational temperature range.
Is SMCJ150AHE3_A/I qualified for automotive applications?
Yes, SMCJ150AHE3_A/I is AEC-Q101 qualified, confirming its suitability for automotive electronic systems. The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, validated through temperature cycling, humidity testing, and mechanical shock protocols. This makes the SMCJ150AHE3_A/I appropriate for under-hood and chassis-mounted modules where reliability under thermal and vibration stress is essential.
What is the standoff voltage rating of SMCJ150AHE3_A/I and how does it relate to system design?
The SMCJ150AHE3_A/I has a standoff voltage (VWM) of 150 V, meaning it remains non-conductive up to this reverse voltage level during normal operation. Designers must ensure that maximum steady-state circuit voltage - including ripple, tolerance, and derating - stays below 150 V to prevent premature conduction. Exceeding VWM risks increased leakage and accelerated degradation; the SMCJ150AHE3_A/I is intended for DC rails or signals with clean, well-regulated voltage envelopes.
How does the SMCJ150AHE3_A/I package compare to SMBJ and SMA variants in terms of thermal performance?
The SMCJ150AHE3_A/I uses the SMC (DO-214AB) package, offering lower thermal resistance than SMBJ (DO-214AA) and SMA (DO-214AC). With RθJA = 75 °C/W, it dissipates heat more effectively under surge conditions than SMBJ equivalents (RθJA ≈ 100 °C/W), supporting higher peak power handling. This makes the SMCJ150AHE3_A/I preferable for high-energy transients where thermal margin directly impacts clamping consistency and device lifetime.
Can SMCJ150AHE3_A/I be used in bidirectional signal protection applications?
No, SMCJ150AHE3_A/I is unidirectional and unsuitable for bidirectional signal lines such as RS-485 or CAN without external polarity management. For those applications, the bidirectional variant SMCJ150CAHE3_A/I is specified - it provides symmetric clamping in both directions with identical VWM and VC characteristics. Using SMCJ150AHE3_A/I on AC-coupled or polarity-reversing paths may result in forward conduction and failure; always match polarity type to signal architecture.
SMCJ150AHE3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ150AHE3_A/I FAQ
1.How can I place an order for SMCJ150AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150AHE3_A/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 SMCJ150AHE3_A/I reliable?
The price and inventory of SMCJ150AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ150AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150AHE3_A/I?
SMCJ150AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150AHE3_A/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 SMCJ150AHE3_A/I?
For technical support, including SMCJ150AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150AHE3_A/I requirements.
6.How does Aetrix verify that SMCJ150AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ150AHE3_A/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 SMCJ150AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ150AHE3_A/I?
All SMCJ150AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150AHE3_A/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 SMCJ150AHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ150AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150AHE3_A/I Tags
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