My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ150AHM3/I
- Part No.:
- SMCJ150AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150AHM3/I.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,653
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ150AHM3/I 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 (VWM), 167–185 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) at 10/1000 µs waveform. It clamps transients to ≤243 V at 6.2 A peak pulse current and operates across –55 °C to +150 °C junction temperature, commonly used to protect automotive power rails and industrial sensor interfaces.
For engineers reviewing the SMCJ150AHM3/I datasheet, SMCJ150AHM3/I pinout, SMCJ150AHM3/I application, or SMCJ150AHM3/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status (indicated by HM3 suffix), 1.0 µA max reverse leakage at VWM, low thermal resistance (RθJL = 15 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) to ESD and lightning-induced surges. Its clamping behavior follows IEEE C62.35 standards, with incremental surge resistance minimized to sustain high IPPM without thermal runaway under repetitive stress.
The SMCJ150AHM3/I is halogen-free and RoHS-compliant (HM3 suffix), rated MSL Level 1 per J-STD-020, and qualified to AEC-Q101 for automotive use-enabling deployment in engine control units, battery management systems, and ADAS sensor power inputs where reliability under thermal cycling and mechanical shock is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 167 V / 185 V at 1 mA - Confirmed breakdown threshold range ensuring predictable turn-on margin |
| VC @ IPPM | 243 V at 6.2 A - Clamped voltage during 10/1000 µs surge, defining protected circuit's maximum overvoltage exposure |
| PPPM | 1500 W - Peak transient energy absorption capability under standardized surge waveform |
| ID @ VWM | 1.0 µA - Low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating |
| RθJL | 15 °C/W - Low junction-to-lead thermal resistance supports reliable power dissipation without external heatsinking |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for unidirectional conduction path | Connected to protected line; clamps positive transients to ground when voltage exceeds VBR |
| Anode (non-banded end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JEDEC standards |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations and enables use in green manufacturing without compromising surge robustness |
| MSL Level 1 rating | Allows unlimited floor life and reflow soldering at peak 260 °C without moisture-induced damage |
| Low RθJL (15 °C/W) | Enables efficient heat transfer to PCB copper, reducing risk of thermal failure during repeated surge events |
| Glass passivated junction | Provides stable VBR tolerance and long-term parameter stability under high-humidity or high-voltage stress |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive transients above 150 V. Use Value: Limits peak voltage to ≤243 V during 1500 W surges, preventing MOSFET gate oxide breakdown and MCU brownout in AEC-Q100-compliant systems. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O lines of PLC analog input modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff device connected across signal and reference ground to absorb induced transients without loading normal operation. Use Value: 1.0 µA leakage preserves signal accuracy; 1500 W PPPM handles multi-kV line-to-ground surges per IEC 61000-4-5. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding PoE-powered switch ports and base station DC inputs from lightning-induced common-mode surges on telecom lines. IC Role / Device Role / Timing Role: Primary clamping element on DC input rail, coordinated with upstream MOVs and downstream filters. Use Value: Fast <1 ns response captures initial surge edge; 243 V VC ensures downstream DC/DC converters remain within absolute maximum ratings. | Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Freewheeling path across motor terminals to divert back-EMF energy during PWM switching transitions. Use Value: 200 A IFSM rating withstands repeated motor stall currents; SMC package fits compact motor driver PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150AHE3/A | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Suitable only for lower-energy surges; not AEC-Q101 qualified | Select when space-constrained and surge threat level is limited to IEC 61000-4-2 Level 4 ESD only |
| 1.5KE150A | Through-hole DO-201 package, same VWM/VBR/PPPM specs, no AEC-Q101 or MSL Level 1 rating | Used in legacy industrial power supplies where manual assembly or wave soldering is preferred | Choose for cost-sensitive, non-automotive designs requiring identical electrical performance but no SMT or automotive qualification |
Compared with SMAJ150AHE3/A and 1.5KE150A, the SMCJ150AHM3/I delivers superior surge handling in surface-mount form with automotive-grade reliability and thermal performance-making it optimal for next-generation automotive and industrial electronics where board space, automated assembly, and long-term field robustness are mandatory.
Availability
SMCJ150AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, and telecom power supplies requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for SMCJ150AHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments; its design prioritizes automotive-grade ruggedness, low clamping voltage, and compatibility with modern SMT manufacturing processes.
FAQ
What is the clamping voltage of the SMCJ150AHM3/I under a 10/1000 µs surge?
The SMCJ150AHM3/I clamps to a maximum of 243 V when subjected to its rated 6.2 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events-critical for ensuring downstream ICs like microcontrollers or gate drivers remain within safe operating limits.
Is the SMCJ150AHM3/I suitable for automotive applications?
Yes, the SMCJ150AHM3/I is AEC-Q101 qualified, as confirmed by the HM3 suffix in its ordering code. It meets automotive requirements for temperature cycling, mechanical shock, and humidity testing, and is explicitly rated for under-hood and powertrain applications. Its 1500 W PPPM and 243 V clamping support compliance with ISO 7637-2 Pulse 5a load dump testing when properly mounted on recommended 8.0 mm × 8.0 mm copper pads.
What does the "HM3" suffix indicate in SMCJ150AHM3/I?
The "HM3" suffix denotes that the SMCJ150AHM3/I is halogen-free, RoHS-compliant, and AEC-Q101 qualified. It distinguishes this variant from commercial-grade versions (e.g., M3 or E3) and confirms compliance with automotive environmental and reliability standards-including JESD201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity for lead-free reflow.
How does the SMCJ150AHM3/I compare to bidirectional TVS diodes like SMCJ150CA?
The SMCJ150AHM3/I is unidirectional and intended for DC rail protection where polarity is fixed; it offers lower leakage (1.0 µA vs. 10 µA for SMCJ150CA at VWM) and avoids reverse conduction during normal operation. In contrast, SMCJ150CA protects AC or bipolar signals but cannot be used on polarized DC lines without risking forward conduction. The SMCJ150AHM3/I's cathode band provides clear orientation for correct PCB placement.
What is the thermal resistance from junction to ambient (RθJA) for the SMCJ150AHM3/I?
The typical junction-to-ambient thermal resistance (RθJA) for the SMCJ150AHM3/I is 75 °C/W when mounted on the minimum recommended pad layout (0.31" × 0.31" copper pads). However, its junction-to-lead resistance (RθJL) is 15 °C/W-indicating efficient heat transfer to the PCB traces. For sustained surge duty, thermal design should prioritize copper area and layer count rather than relying solely on RθJA, as the device is rated for short-duration pulses.
SMCJ150AHM3/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:
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ150AHM3/I FAQ
1.How can I place an order for SMCJ150AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150AHM3/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 SMCJ150AHM3/I reliable?
The price and inventory of SMCJ150AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150AHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ150AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150AHM3/I?
SMCJ150AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150AHM3/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 SMCJ150AHM3/I?
For technical support, including SMCJ150AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150AHM3/I requirements.
6.How does Aetrix verify that SMCJ150AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ150AHM3/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 SMCJ150AHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ150AHM3/I?
All SMCJ150AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150AHM3/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 SMCJ150AHM3/I part is unused and in its original packaging.
Return procedure for SMCJ150AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150AHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
