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Vishay General Semiconductor - Diodes Division SMCJ15AHE3_A/H
- Part No.:
- SMCJ15AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ15AHE3_A/H.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,415
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Product details
Overview
SMCJ15AHE3_A/H 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 15 V stand-off voltage (VWM), 24.4 V clamping voltage (VC) at 61.5 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial I/O modules, and sensor interface circuits.
For engineers reviewing the SMCJ15AHE3_A/H datasheet, SMCJ15AHE3_A/H pinout, SMCJ15AHE3_A/H application, or SMCJ15AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.63), 1.0 µA max reverse leakage at VWM, and compatibility with automated SMT placement on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at 12 V), but triggers into low-impedance conduction when transient voltage exceeds its 16.7–18.5 V breakdown range (VBR at 1.0 mA). Its glass-passivated junction ensures stable parametric performance across temperature and lifetime.
Designed for unidirectional surge suppression, SMCJ15AHE3_A/H handles non-repetitive 8.3 ms half-sine surges up to 200 A (IFSM) and maintains operation from –55 °C to +150 °C junction temperature. Thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), enabling reliable derating above 25 °C ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin |
| VBR min/max | 16.7 V / 18.5 V at 1.0 mA - guaranteed breakdown window ensuring consistent turn-on threshold |
| VC @ IPPM | 24.4 V at 61.5 A - clamping voltage during 10/1000 µs surge; determines protected circuit's worst-case overvoltage |
| PPPM | 1500 W - peak transient power handling capacity; validates immunity to IEC 61000-4-5 Level 4 surges |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves battery life and signal integrity in always-on systems |
| TJ max | +150 °C - enables deployment in under-hood automotive and high-temperature industrial enclosures |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMCJ15AHE3_A/H uses the SMC (DO-214AB) package: a molded, RoHS-compliant, halogen-free case with matte tin-plated leads solderable per J-STD-002. Polarity is marked by a cathode band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes shunt path during transient |
| Cathode | High-side input terminal | Connected to protected line (e.g., 12 V rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave (1.2/50 µs voltage, 8/20 µs current) up to Level 4 (4 kV/2 kA) |
| Low clamping ratio (VC/VWM = 1.63) | Minimizes stress on downstream ICs like microcontrollers and CAN transceivers during surge events |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Glass passivated junction | Ensures long-term parameter stability and reduced parameter drift over thermal cycling and humidity exposure |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS device clamping voltage spikes before they reach MCU power pins or LDO regulators. Use Value: Prevents latch-up or permanent damage to automotive-grade MCUs by limiting transient overvoltage to ≤24.4 V. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Bidirectional clamping not applicable; unidirectional SMCJ15AHE3_A/H placed between sensor VDD and GND to absorb ESD and switching noise. Use Value: Maintains sensor accuracy and prevents false readings caused by >1 kV ESD events on 15 V bias rails. |
| Telecom Line Card Surge Suppression | Consumer Device USB Power Input |
Use Scenario: Front-end protection of 48 V DC power inputs on telecom line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt clamp on DC input rail upstream of DC-DC converters and hot-swap controllers. Use Value: Absorbs up to 1500 W transient energy while holding rail voltage below 25 V, preserving converter startup behavior. | Use Scenario: Overvoltage safeguard on 5 V USB Type-C power delivery inputs in portable medical monitors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and GND to suppress fast-rising transients from faulty chargers or cable insertion. Use Value: Clamps 10/1000 µs surges to 24.4 V within nanoseconds, preventing damage to USB PD controller ICs rated for 28 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC15 | Lower PPPM (600 W), same VWM (15 V), smaller SMA package (DO-214AC) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select only for space-constrained consumer designs with <600 W surge requirements |
| SMCJ15A-E3/57T | Identical electrical specs and SMC package; differs only in tape-and-reel packaging (57T vs. H) | No functional difference; both AEC-Q101 qualified and RoHS-compliant | Choose based on volume procurement needs - H-code supports 7" reel, 57T supports legacy 7" format |
Compared with SAC15 and SMCJ15A-E3/57T, SMCJ15AHE3_A/H delivers full 1500 W surge capability in an AEC-Q101-qualified SMC package with optimized thermal resistance (RθJA = 75 °C/W), making it the preferred choice for automotive and industrial applications requiring validated reliability and high-energy clamping.
Availability
SMCJ15AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial I/O protection, and telecom power supply design requiring stable component supply and AEC-Q101 compliance.
Supply support for SMCJ15AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 qualification, low clamping, and repeatable surge endurance are critical.
FAQ
What is the breakdown voltage range of SMCJ15AHE3_A/H?
The SMCJ15AHE3_A/H has a guaranteed breakdown voltage (VBR) range of 16.7 V to 18.5 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures predictable turn-on behavior across production lots and temperature extremes, directly supporting robust overvoltage protection design for 15 V nominal systems.
Is SMCJ15AHE3_A/H suitable for automotive applications?
Yes, SMCJ15AHE3_A/H is AEC-Q101 qualified and manufactured with automotive-grade process controls. Its SMC package meets MSL Level 1, and its 1500 W PPPM, 200 A IFSM, and –55 °C to +150 °C operating range make it suitable for engine control, body electronics, and ADAS power rail protection - all verified per SMCJ15AHE3_A/H datasheet revision 09-Jan-2024.
How does the clamping voltage of SMCJ15AHE3_A/H compare to its stand-off voltage?
The SMCJ15AHE3_A/H clamps at 24.4 V (VC) when subjected to its rated 61.5 A peak pulse current, yielding a clamping ratio of 1.63 (24.4 V ÷ 15 V VWM). This low ratio ensures downstream components see minimal overvoltage during surge events, a key advantage over higher-ratio TVS devices that could exceed IC absolute maximum ratings.
What is the thermal resistance of SMCJ15AHE3_A/H and how does it affect layout?
SMCJ15AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per datasheet Fig. 2. To maintain safe operation at full 1500 W surge, PCB layout must provide adequate copper area and avoid thermal bottlenecks - insufficient copper increases junction temperature and reduces surge endurance, especially in repeated event scenarios.
Does SMCJ15AHE3_A/H have polarity marking and how is it oriented in circuit?
Yes, SMCJ15AHE3_A/H features a visible cathode band on the SMC package body. In circuit, the cathode connects to the protected line (e.g., 12 V rail) and the anode connects to ground - reverse-biasing the diode during normal operation so it remains non-conductive until a transient exceeds VBR. Incorrect orientation renders the device ineffective for unidirectional protection.
SMCJ15AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ15AHE3_A/H FAQ
1.How can I place an order for SMCJ15AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ15AHE3_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 SMCJ15AHE3_A/H reliable?
The price and inventory of SMCJ15AHE3_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 SMCJ15AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ15AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ15AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ15AHE3_A/H?
SMCJ15AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ15AHE3_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 SMCJ15AHE3_A/H?
For technical support, including SMCJ15AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ15AHE3_A/H requirements.
6.How does Aetrix verify that SMCJ15AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ15AHE3_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 SMCJ15AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ15AHE3_A/H?
All SMCJ15AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ15AHE3_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 SMCJ15AHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ15AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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