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Vishay General Semiconductor - Diodes Division 1.5SMC150A-M3/57T
- Part No.:
- 1.5SMC150A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150A-M3/57T.pdf
- Description:
- TVS DIODE 128VWM 207VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,871
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Product details
Overview
1.5SMC150A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 128 V standoff voltage (VWM), and 207 V clamping voltage (VC) at 7.2 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines against lightning-induced transients and inductive switching surges in automotive and industrial power supplies.
For engineers reviewing the 1.5SMC150A-M3/57T datasheet, 1.5SMC150A-M3/57T pinout, 1.5SMC150A-M3/57T application, or 1.5SMC150A-M3/57T equivalent, this page delivers verified electrical parameters, thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world clamping behavior under standardized surge waveforms.
Technical Context
The 1.5SMC150A-M3/57T operates as a unidirectional avalanche-clamping device with glass-passivated junction, enabling sub-nanosecond response to transient overvoltages. Its breakdown voltage (VBR) is specified at 143–158 V (min/max) with 1 mA test current, and it exhibits a temperature coefficient of +0.108 %/°C - critical for stable clamping across automotive temperature ranges (−65 °C to +150 °C).
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads, it delivers 1500 W peak pulse power per JEDEC-standard 10/1000 μs waveform at 0.01 % duty cycle, with low incremental surge resistance ensuring minimal voltage overshoot during fast-rising transients up to 200 A non-repetitive forward surge capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 128 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 143–158 V at 1 mA - precise avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping) | 207 V at IPPM = 7.2 A - peak voltage seen by protected circuit during full-rated 10/1000 μs surge; determines downstream component stress. |
| PPPM | 1500 W - peak pulse power handling capacity; enables robust protection against lightning (IEC 61000-4-5 Level 4) and load dump events. |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance; informs PCB copper pad design and derating above 25 °C ambient. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 0.320" × 0.246" footprint; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL level 1 (260 °C peak reflow). Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VWM. |
| Anode (unmarked end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity without derating in standard layouts. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets automotive and industrial environmental compliance requirements including JESD201 Class 2 whisker resistance. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), reducing risk of downstream IC latch-up. |
| AEC-Q101 qualified option available | Base part 1.5SMC150AHM3_B qualifies for automotive applications; this M3/57T variant is commercial-grade but shares identical die and package. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; simplifies manufacturing and reduces process risk. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V DC-DC converter inputs against load dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp surges >120 V while remaining inert during normal operation. Use Value: Clamps to 207 V at 7.2 A, limiting stress on upstream rectifiers and downstream regulators - validated for 100,000+ surge cycles per AEC-Q101. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor mounted at connector entry point to shunt transients before reaching ADC front-end. Use Value: 207 V clamping voltage preserves signal integrity for 0–5 V or 4–20 mA interfaces; <1 nF junction capacitance avoids bandwidth degradation. |
| Telecom AC/DC Adapter Input Stage | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Safeguarding primary-side rectifier and controller ICs in offline SMPS used in VoIP phones and base stations exposed to AC line surges. IC Role / Device Role / Timing Role: Fast-response TVS placed across bridge rectifier output to absorb differential-mode surges induced by lightning coupling. Use Value: 1500 W rating handles 6 kV/12 Ω combination wave surges (IEC 61000-4-5); glass passivation ensures long-term reliability under repeated stress. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders) during commutation. IC Role / Device Role / Timing Role: Unidirectional TVS connected across motor terminals to clamp flyback voltage spikes exceeding 128 V. Use Value: 200 A non-repetitive surge rating withstands worst-case stall conditions; SMC package provides mechanical robustness in high-vibration environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52T | Same VWM/VC, but SMB package (smaller footprint, lower PPPM = 600 W) | Limited to lower-energy transients (e.g., ESD-only); unsuitable for IEC 61000-4-5 Level 3+ | Select when board space is constrained and surge energy is ≤600 W; verify thermal derating on smaller pads. |
| 1.5KE150A-T | Through-hole DO-201 package; identical VWM/VC/PPPM, but higher RθJA (~100 °C/W) | Requires wave soldering; less suitable for mixed-technology SMT-only lines | Choose for legacy through-hole designs or where manual repair access is prioritized over automated assembly. |
Compared with 1.5SMC150A-M3/57T, SMBJ150A-E3/52T trades surge robustness for compactness, while 1.5KE150A-T retains full power rating but sacrifices SMT compatibility and thermal performance - making 1.5SMC150A-M3/57T optimal for high-reliability, volume SMT production targeting automotive and industrial standards.
Availability
1.5SMC150A-M3/57T is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface hardening, telecom AC/DC adapter input stages, and consumer appliance motor drive circuits requiring stable component supply and halogen-free compliance.
Supply support for 1.5SMC150A-M3/57T 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5SMC Series was engineered for high-energy transient suppression in space-constrained SMT applications - balancing 1500 W surge capability, low-profile packaging, and AEC-Q101 readiness for automotive electronics.
FAQ
What is the clamping voltage of the 1.5SMC150A-M3/57T under full-rated surge current?
The 1.5SMC150A-M3/57T clamps to a maximum of 207 V when subjected to its rated peak pulse current of 7.2 A using the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88303 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Is the 1.5SMC150A-M3/57T AEC-Q101 qualified?
The 1.5SMC150A-M3/57T itself is a commercial-grade halogen-free RoHS-compliant part (M3 suffix). However, the functionally identical automotive-qualified variant is 1.5SMC150AHM3_B/H - same die, same SMC package, and AEC-Q101 certified per Vishay's ordering matrix. For automotive production, specify the HM3_B suffix.
What is the standoff voltage (VWM) and why does it matter for the 1.5SMC150A-M3/57T?
The 1.5SMC150A-M3/57T has a VWM of 128 V - the maximum continuous reverse voltage it can block without entering breakdown. This parameter ensures the device remains non-conductive during normal operation (e.g., 12 V or 24 V automotive systems), preventing leakage current and power loss while allowing clean clamping only during overvoltage events.
Can the 1.5SMC150A-M3/57T be used in bidirectional configurations?
No - the 1.5SMC150A-M3/57T is strictly unidirectional, as indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the 1.5SMC150CA-M3/57T variant, which provides symmetrical clamping in both polarities and uses the "CA" suffix instead of "A".
What is the thermal resistance and how does it affect layout for the 1.5SMC150A-M3/57T?
The 1.5SMC150A-M3/57T 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 terminal. To maintain safe junction temperatures under repetitive surges, PCB layout must replicate this pad area - undersized traces or insufficient copper will cause thermal derating and potential failure during sustained transient activity.
1.5SMC150A-M3/57T 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-M3/57T FAQ
1.How can I place an order for 1.5SMC150A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150A-M3/57T 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-M3/57T reliable?
The price and inventory of 1.5SMC150A-M3/57T 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-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC150A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150A-M3/57T?
1.5SMC150A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150A-M3/57T 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-M3/57T?
For technical support, including 1.5SMC150A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC150A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150A-M3/57T 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-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC150A-M3/57T?
All 1.5SMC150A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150A-M3/57T, 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-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC150A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150A-M3/57T Tags
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ESD9B5.0ST5G
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