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Vishay General Semiconductor - Diodes Division SMCJ150AHE3/9AT
- Part No.:
- SMCJ150AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150AHE3/9AT.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,799
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Product details
Overview
SMCJ150AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 150 V standoff voltage, 243 V clamping voltage at 6.2 A peak pulse current, and 1500 W peak pulse power rating under 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMCJ150AHE3/9AT datasheet, SMCJ150AHE3/9AT pinout, SMCJ150AHE3/9AT application, or SMCJ150AHE3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 V stand-off voltage, 243 V clamping performance, and SMC package compatibility with automated placement and IPC Class 2 whisker resistance.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its 150 V reverse stand-off voltage (VWM), then rapidly avalanches to limit transient overvoltages above its 167–185 V breakdown range (VBR at 1 mA). Its low incremental surge resistance and fast response time ensure effective suppression of inductive switching spikes and ESD events.
Designed for unidirectional operation, SMCJ150AHE3/9AT features a cathode band marking, glass-passivated junction, and thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads. It meets MSL Level 1 per J-STD-020 and supports peak forward surge current up to 200 A (8.3 ms half-sine).
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 - Breakdown voltage range defining avalanche onset threshold |
| VC @ IPPM | 243 V at 6.2 A - Clamped voltage during 10/1000 μs surge, limiting downstream stress |
| PPPM | 1500 W - Peak pulse power handling capability under standardized surge waveform |
| ID @ VWM | 1.0 μA - Reverse leakage current at rated stand-off voltage, minimizing standby power loss |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMCJ150AHE3/9AT uses the standard SMC (DO-214AB) package: two-terminal, unidirectional configuration with cathode identified by a band on the body. The device has no internal circuitry beyond the PN junction; terminals serve only as anode and cathode connections for series surge protection placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when V > VBR |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Enhances reliability and moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 rating | Enables standard reflow without pre-baking; peak solder temperature up to 260 °C |
| Low incremental surge resistance | Ensures minimal voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| Matte tin-plated leads | Complies with J-STD-002 and JESD 22-B102 for robust solderability and whisker resistance |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12 V/24 V supply rails in body control modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input. Use Value: Clamps 120 V load dump spikes to ≤243 V, preventing damage to downstream LDOs and microcontrollers. | Use Scenario: Safeguarding gate drivers and current sense amplifiers in variable-frequency drives exposed to IGBT switching noise. IC Role / Device Role / Timing Role: Parallel-connected TVS on motor phase inputs to suppress commutation-induced dv/dt spikes. Use Value: Limits transient voltage to 243 V within nanoseconds, avoiding false triggering of overvoltage protection circuits. |
| Telecom Line Interface Protection | Automotive Sensor Signal Conditioning |
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary protection stage ahead of GDT or polymer PTC secondary devices. Use Value: Absorbs up to 1500 W of surge energy while maintaining <1.0 μA leakage at 150 V, preserving signal integrity. | Use Scenario: Securing analog outputs of pressure or temperature sensors in exhaust gas recirculation (EGR) systems. IC Role / Device Role / Timing Role: Low-leakage TVS on 5 V sensor supply line adjacent to ADC reference input. Use Value: Prevents latch-up in precision analog front-ends during cranking transients, with <1 μA ID ensuring offset stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/61T | Lower PPPM (400 W), SMA package (smaller footprint, lower thermal mass) | Not suitable for 1500 W surge events; limited to lower-energy IEC 61000-4-5 test levels | Select when board space is constrained and surge threat level is ≤400 W |
| 1.5KE150A | Through-hole DO-201 package, same VWM/VC specs but higher RθJA (~100 °C/W) | Requires wave soldering; less compatible with high-density SMT assembly | Choose for legacy through-hole designs or where manual repair access is prioritized |
Compared with SMAJ150A-E3/61T and 1.5KE150A, SMCJ150AHE3/9AT delivers 3.75× higher surge power handling than SMAJ150A and superior thermal dissipation versus 1.5KE150A due to SMC's larger copper pad interface-critical for automotive and industrial systems requiring repeated surge endurance.
Availability
SMCJ150AHE3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive inputs, telecom line interface protection, and automotive sensor signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for SMCJ150AHE3/9AT 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, automotive qualification, and high-power handling.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments-including under-hood automotive, industrial automation, and telecom infrastructure-where sustained surge immunity and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMCJ150AHE3/9AT at its rated peak pulse current?
The SMCJ150AHE3/9AT clamps to a maximum of 243 V when subjected to its specified peak pulse current of 6.2 A under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream components such as MOSFETs and microcontrollers in automotive and industrial systems.
Is SMCJ150AHE3/9AT qualified for automotive applications?
Yes, SMCJ150AHE3/9AT carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. This certification validates its reliability for automotive use cases including engine control, body electronics, and ADAS sensor interfaces, with testing covering temperature cycling, humidity bias, and accelerated life stress.
What does the "9AT" in SMCJ150AHE3/9AT indicate?
The "9AT" suffix denotes the preferred packaging configuration: 13-inch diameter plastic tape and reel, containing 3500 units per reel. This format supports high-volume automated pick-and-place assembly and complies with EIA-481 standards for SMT manufacturing traceability and handling.
How does the SMC package of SMCJ150AHE3/9AT compare thermally to smaller packages like SMA?
The SMC (DO-214AB) package used by SMCJ150AHE3/9AT provides significantly better thermal performance than SMA: its typical RθJA is 75 °C/W versus ~120 °C/W for SMA, due to larger copper pad area (8.0 mm × 8.0 mm) and lower junction-to-lead resistance (15 °C/W). This enables reliable 1500 W surge dissipation without derating in compact layouts.
Can SMCJ150AHE3/9AT be used in bidirectional configurations?
No, SMCJ150AHE3/9AT is strictly unidirectional, as indicated by the "A" suffix (versus "CA" for bidirectional variants like SMCJ150CA). Its cathode band marking and asymmetric IV curve require correct polarity orientation; using it in reverse or attempting bidirectional operation will result in failure to clamp on positive transients.
SMCJ150AHE3/9AT 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:
- 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)
SMCJ150AHE3/9AT FAQ
1.How can I place an order for SMCJ150AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150AHE3/9AT 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 SMCJ150AHE3/9AT reliable?
The price and inventory of SMCJ150AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ150AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150AHE3/9AT?
SMCJ150AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150AHE3/9AT 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 SMCJ150AHE3/9AT?
For technical support, including SMCJ150AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150AHE3/9AT requirements.
6.How does Aetrix verify that SMCJ150AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ150AHE3/9AT 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 SMCJ150AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ150AHE3/9AT?
All SMCJ150AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150AHE3/9AT, 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 SMCJ150AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ150AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150AHE3/9AT Tags
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