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Vishay General Semiconductor - Diodes Division SMCJ15CAHE3_A/H
- Part No.:
- SMCJ15CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ15CAHE3_A/H.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,465
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Product details
Overview
SMCJ15CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 15 V standoff voltage (VWM), 24.4 V maximum clamping voltage at 61.5 A peak pulse current (10/1000 µs), and 1500 W peak pulse power dissipation. Used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the SMCJ15CAHE3_A/H datasheet, SMCJ15CAHE3_A/H pinout, SMCJ15CAHE3_A/H application, or SMCJ15CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating, low clamping ratio (VC/VWM = 1.63), and compatibility with automated SMT assembly on 8 mm × 8 mm copper pads.
Technical Context
This device operates as a silicon avalanche diode optimized for transient suppression using a glass-passivated junction. Its bidirectional structure enables symmetrical clamping in both polarities without polarity marking, supporting protection of AC-coupled or floating signal paths. The 1500 W PPPM rating is validated under standardized 10/1000 µs waveform testing per ANSI/IEEE C62.35.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, with operation rated from −55 °C to +150 °C junction temperature. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive applications, indicated by the "HE3" suffix and "A/H" tape-and-reel packaging code.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 16.7 V / 18.5 V at 1 mA - Breakdown voltage range defining reliable avalanche onset |
| VC @ IPPM | 24.4 V at 61.5 A - Clamped voltage during full 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W - Peak pulse power handling capacity under 10/1000 µs waveform |
| ID @ VWM | 1.0 µA - Low leakage ensures minimal standby power loss and signal integrity |
| TJ max | +150 °C - Enables use in under-hood automotive and high-temperature industrial environments |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
Pinout & Package
SMCJ15CAHE3_A/H uses a 2-terminal SMC (DO-214AB) package with no polarity marking due to its bidirectional construction. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical avalanche junction; conducts when voltage exceeds +VBR |
| Cathode | Transient current entry (negative half-cycle) | Other terminal of symmetrical avalanche junction; conducts when voltage exceeds −VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 | Compatible with standard reflow profiles up to 260 °C peak, eliminating bake requirements pre-assembly |
| Low clamping ratio (VC/VWM) | 1.63 - Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| UL 94 V-0 molding compound | Ensures flame retardancy in safety-critical end equipment per international regulatory standards |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power input and DC/DC converter input stage. Use Value: Limits voltage to ≤24.4 V during 1500 W surges, preventing damage to 36 V-rated input stages and enabling compliance with ISO 7637-2 Pulse 5a. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors connected to long harnesses in factory automation. IC Role / Device Role / Timing Role: Low-capacitance transient shunt across differential signal pair (e.g., RS-485 or CAN FD stub lines). Use Value: Clamps ESD and inductive switching spikes without distorting signal integrity, leveraging <1 µA leakage at 15 V to avoid DC offset errors. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Safeguarding primary-side controllers and rectifiers in universal-input AC/DC adapters against line surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-line transient suppressor mounted directly at AC input connector before bridge rectifier. Use Value: Absorbs 1500 W surges with 24.4 V clamping, reducing stress on upstream MOVs and enabling smaller X/Y capacitor sizing. | Use Scenario: Protecting Ethernet PHY and PoE controller ICs on telecom line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-stage TVS after gas discharge tube (GDT), providing fast-response clamping for residual transients. Use Value: Responds in <1 ns to limit sub-microsecond spikes to safe levels for 2.5 V/3.3 V PHYs, with AEC-Q101 qualification ensuring field longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15CAHE3_A/H | 400 W PPPM, same VWM/VC, SMA package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a | Select when board space is constrained and surge energy does not exceed 400 W |
| SMCJ15CAHM3_A/H | Identical electrical specs; halogen-free molding compound, same AEC-Q101 qualification | No functional difference; required only where halogen-free compliance is mandated | Select when RoHS + halogen-free material declaration is contractually required |
Compared with SMCJ15CAHE3_A/H, SMAJ15CAHE3_A/H offers reduced surge capacity in a smaller footprint, while SMCJ15CAHM3_A/H provides identical protection with halogen-free materials-neither is pin-compatible with other packages, and both require layout verification for thermal pad area and trace width.
Availability
SMCJ15CAHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer power adapters, and telecom line cards requiring stable component supply with AEC-Q101 assurance and 1500 W transient immunity.
Supply support for SMCJ15CAHE3_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 designs discrete semiconductors for power management, signal conditioning, and circuit protection, serving automotive, industrial, and computing markets with high-reliability components.
The SMCJ series targets high-energy transient suppression in harsh environments, with design emphasis on robust clamping, AEC-Q101 qualification, and compatibility with automated SMT processes in volume manufacturing.
FAQ
What is the clamping voltage of SMCJ15CAHE3_A/H at its rated peak pulse current?
The SMCJ15CAHE3_A/H has a maximum clamping voltage (VC) of 24.4 V at its rated peak pulse current (IPPM) of 61.5 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during worst-case transients. The SMCJ15CAHE3_A/H maintains this clamping performance across its full operating temperature range of −55 °C to +150 °C.
Is SMCJ15CAHE3_A/H suitable for automotive applications?
Yes, SMCJ15CAHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix and "A/H" packaging code. It meets requirements for temperature cycling, mechanical shock, and humidity bias per AEC-Q101 Rev G. The device is deployed in engine control units, body electronics, and ADAS sensor modules where ISO 7637-2 Pulse 5a compliance and 1500 W surge immunity are required. SMCJ15CAHE3_A/H supports these applications with its 150 °C maximum junction temperature and MSL Level 1 reflow compatibility.
How does the bidirectional configuration of SMCJ15CAHE3_A/H affect PCB layout?
The bidirectional configuration of SMCJ15CAHE3_A/H eliminates polarity marking and allows placement across AC-coupled or floating signal paths without orientation constraints. Unlike unidirectional TVS diodes, SMCJ15CAHE3_A/H has no cathode band and requires no anode/cathode alignment during pick-and-place. However, its SMC (DO-214AB) package still mandates minimum 8.0 mm × 8.0 mm copper pad areas per terminal for thermal derating compliance, as specified in the Vishay datasheet Figure 2.
What is the maximum reverse leakage current of SMCJ15CAHE3_A/H at its standoff voltage?
The maximum reverse leakage current (ID) of SMCJ15CAHE3_A/H is 1.0 µA at its 15 V standoff voltage (VWM), measured at 25 °C ambient. This low leakage ensures minimal power loss in always-on systems and avoids loading sensitive analog inputs or high-impedance sensor outputs. Leakage remains below 5 µA up to 125 °C, supporting stable operation in thermally demanding environments without compromising signal fidelity or battery life in SMCJ15CAHE3_A/H-based designs.
Does SMCJ15CAHE3_A/H meet UL recognition requirements?
Yes, SMCJ15CAHE3_A/H carries Underwriters Laboratories recognition under file number E136766 for both unidirectional and bidirectional transient suppressors, compliant with UL 497B for signal and power line protectors. Its molding compound meets UL 94 V-0 flammability rating, and terminals comply with J-STD-002 and JESD 22-B102 solderability standards. These certifications validate SMCJ15CAHE3_A/H for use in end equipment requiring UL listing, including industrial controls and telecom infrastructure.
SMCJ15CAHE3_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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 61.5A
- 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)
SMCJ15CAHE3_A/H FAQ
1.How can I place an order for SMCJ15CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ15CAHE3_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 SMCJ15CAHE3_A/H reliable?
The price and inventory of SMCJ15CAHE3_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 SMCJ15CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ15CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ15CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ15CAHE3_A/H?
SMCJ15CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ15CAHE3_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 SMCJ15CAHE3_A/H?
For technical support, including SMCJ15CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ15CAHE3_A/H requirements.
6.How does Aetrix verify that SMCJ15CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ15CAHE3_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 SMCJ15CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ15CAHE3_A/H?
All SMCJ15CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ15CAHE3_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 SMCJ15CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ15CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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