My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC150A-M3/9AT
- Part No.:
- 1.5SMC150A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150A-M3/9AT.pdf
- Description:
- TVS DIODE 128VWM 207VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,528
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC150A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for high-energy surge protection. It features a 150 V standoff voltage (VWM), 158 V maximum breakdown voltage (VBR), 207 V clamping voltage (VC) at 7.2 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - ideal for safeguarding power rails and I/O lines in industrial motor drives.
For engineers reviewing the 1.5SMC150A-M3/9AT datasheet, 1.5SMC150A-M3/9AT pinout, 1.5SMC150A-M3/9AT application, or 1.5SMC150A-M3/9AT equivalent, this part delivers verified clamping performance, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness - critical for automotive ECU power input staging and telecom DC feed protection where transient immunity and long-term reliability are mandatory.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse-biased voltage exceeds VBR (143–158 V), it avalanches to limit transient energy across protected circuitry. Its low incremental surge resistance ensures minimal voltage overshoot during fast transients, while the glass-passivated junction guarantees stable leakage (<1.0 μA at 128 V) and robust surge endurance.
The device is rated for 150 °C maximum junction temperature and exhibits a +0.108 %/°C temperature coefficient of VBR - enabling predictable clamping behavior over wide thermal ranges. Mounting on 8.0 mm × 8.0 mm copper pads per terminal sustains its 1500 W peak pulse rating under repetitive 0.01 % duty cycle conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 128 V - maximum continuous reverse operating voltage before conduction begins; defines safe DC/AC operating margin. |
| VBR (Breakdown) | 143–158 V at 1.0 mA - precise avalanche initiation range; ensures consistent turn-on across production lots. |
| VC (Clamping) | 207 V at IPPM = 7.2 A - maximum voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM | 1500 W - peak transient power dissipation capacity; supports lightning-induced surges per IEC 61000-4-5 Level 4. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place. |
| RoHS Status | Halogen-free, RoHS-compliant (M3 suffix) - meets IPC-1752A material declaration requirements for green manufacturing. |
| TJ max | 150 °C - enables operation in under-hood automotive environments and enclosed industrial enclosures without derating. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; cathode indicated by a band on the body; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; forms current sink during avalanche conduction. |
| Cathode | High-side protected node | Connected to line being protected (e.g., 12 V rail); carries full surge current into ground during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Sustains IEC 61000-4-5 4 kV/2 Ω combination wave surges without degradation. |
| 207 V clamping at 7.2 A | Limits voltage stress on downstream 200 V-rated MOSFETs and gate drivers in DC-DC converter inputs. |
| Low incremental surge resistance | Minimizes dynamic impedance rise during fast transients, improving clamping fidelity vs. competing TVS diodes. |
| AEC-Q101 qualified option available | Enables direct use in automotive power modules (e.g., body control units) with validated reliability testing. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow soldering without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground; clamps transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to CAN transceivers and microcontrollers during alternator load dump events. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on optocoupler input side; absorbs inductive kickback from solenoid/relay coils. Use Value: Eliminates false triggering and extends optocoupler lifetime in factory automation systems exposed to frequent switching noise. |
| Telecom DC Power Feed Protection | Motor Drive DC Bus Snubbing |
Use Scenario: Safeguarding -48 V DC power feeds in base station remote radio units against lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable variant family member used in unidirectional configuration on negative rail; clamps both positive and negative transients via system grounding scheme. Use Value: Maintains uptime in outdoor telecom infrastructure by meeting Telcordia GR-1089-CORE Level 3 surge immunity requirements. |
Use Scenario: Suppressing commutation spikes on 300–400 V DC bus lines feeding three-phase inverters in HVAC compressors. IC Role / Device Role / Timing Role: Parallel-connected TVS across bus capacitors; clamps fast-rising dV/dt spikes generated by IGBT switching. Use Value: Reduces electromagnetic interference and prevents overvoltage failure of bus capacitors and gate driver ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Lower peak pulse power (600 W), same VWM/VBR/VC ratings, SMB package (smaller footprint, lower thermal mass). | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy transients in space-constrained consumer electronics. | Select only when board area is critical and surge threat level is ≤ Level 2. |
| 1.5KE150A | Through-hole DO-201 package, identical electrical specs, higher RθJA (100 °C/W vs. 75 °C/W), no MSL Level 1 rating. | Requires wave soldering; unsuitable for mixed-technology SMT-only lines or high-reliability automotive reflow processes. | Choose only for legacy through-hole designs or prototyping where manual assembly is acceptable. |
Compared with SMBJ150A and 1.5KE150A, the 1.5SMC150A-M3/9AT uniquely balances high-power surge handling (1500 W), SMT manufacturability, halogen-free compliance, and AEC-Q101 readiness - making it the optimal choice for volume production of automotive and industrial power systems requiring zero-compromise transient immunity.
Availability
1.5SMC150A-M3/9AT is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial PLC I/O modules, and telecom DC feed protection requiring stable component supply, long-lifecycle support, and traceable halogen-free sourcing.
Supply support for 1.5SMC150A-M3/9AT 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The 1.5SMC Series was engineered specifically for high-energy transient suppression in compact SMT formats, targeting design-in across automotive power distribution, industrial automation, and telecom infrastructure where robustness and process compatibility are non-negotiable.
FAQ
What is the clamping voltage of the 1.5SMC150A-M3/9AT under standard test conditions?
The 1.5SMC150A-M3/9AT has a maximum clamping voltage (VC) of 207 V at a peak pulse current (IPPM) of 7.2 A with a 10/1000 μs waveform. This value is measured under standardized conditions per JEDEC standards and reflects the actual voltage imposed on protected circuitry during worst-case surge events - critical for validating downstream component voltage margins.
Is the 1.5SMC150A-M3/9AT suitable for automotive applications?
Yes - the 1.5SMC150A-M3/9AT is halogen-free and RoHS-compliant (M3 suffix), and AEC-Q101 qualified variants exist in the same 1.5SMC family (e.g., 1.5SMC150AHM3_A). While the exact M3/9AT suffix denotes commercial-grade packaging, its electrical and thermal specs fully align with automotive power rail protection requirements, and Vishay provides AEC-Q101 data upon request for this variant.
What does the "M3" suffix mean in 1.5SMC150A-M3/9AT?
The "M3" suffix in 1.5SMC150A-M3/9AT indicates halogen-free, RoHS-compliant construction meeting IPC-1752A material declarations. It also signifies compliance with JESD201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity - enabling lead-free reflow without baking. This distinguishes it from E3 (standard RoHS) and HM3 (AEC-Q101 + halogen-free) variants.
How does the 1.5SMC150A-M3/9AT compare to bidirectional TVS diodes like 1.5SMC150CA?
The 1.5SMC150A-M3/9AT is unidirectional and intended for DC rail protection where polarity is fixed (e.g., +12 V to ground), offering tighter leakage control (<1.0 μA at 128 V). In contrast, 1.5SMC150CA is bidirectional and suited for AC lines or differential signals. They share identical VWM, VBR, VC, and PPPM ratings - but substituting one for the other requires verifying circuit polarity and grounding topology.
What PCB layout guidance applies to the 1.5SMC150A-M3/9AT for optimal surge performance?
For rated 1500 W performance, Vishay specifies mounting the 1.5SMC150A-M3/9AT on minimum 8.0 mm × 8.0 mm copper pads per terminal - not just traces. Use short, wide traces to ground; avoid vias in the current path; and ensure thermal relief is minimized. Failure to meet pad size requirements reduces IPPM capability by up to 40 %, directly impacting IEC 61000-4-5 compliance.
1.5SMC150A-M3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC150A-M3/9AT FAQ
1.How can I place an order for 1.5SMC150A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150A-M3/9AT 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 1.5SMC150A-M3/9AT reliable?
The price and inventory of 1.5SMC150A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC150A-M3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC150A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150A-M3/9AT?
1.5SMC150A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150A-M3/9AT 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 1.5SMC150A-M3/9AT?
For technical support, including 1.5SMC150A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150A-M3/9AT requirements.
6.How does Aetrix verify that 1.5SMC150A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150A-M3/9AT 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 1.5SMC150A-M3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC150A-M3/9AT?
All 1.5SMC150A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150A-M3/9AT, 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 1.5SMC150A-M3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC150A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150A-M3/9AT 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
