My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T150CA-M3/57T
- Part No.:
- SM15T150CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T150CA-M3/57T.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,527
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T150CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 150 V standoff voltage (VWM), 207 V clamping voltage at 7.2 A IPPM, and operating up to +150 °C junction temperature. It protects automotive sensor signal lines against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T150CA-M3/57T datasheet, SM15T150CA-M3/57T pinout, SM15T150CA-M3/57T application, or SM15T150CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (1.38), halogen-free RoHS compliance, and suitability for AEC-Q101-qualified systems when ordered with HM3 suffix.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical breakdown (143–158 V), clamping (207 V @ 7.2 A), and leakage (<1 μA @ 150 V) characteristics in either direction. Its glass-passivated junction ensures stable performance under repeated surge stress.
The device uses a low-inductance SMC package with matte tin-plated leads solderable per J-STD-002, achieving thermal resistance of 15 °C/W junction-to-lead and 75 °C/W junction-to-ambient on standard 8 mm × 8 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 143 V / 158 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 207 V @ 7.2 A - Clamped voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 1500 W - Peak pulse power handling capacity under standardized lightning-surge waveform |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - Surface-mount package with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix), MSL Level 1, LF peak 260 °C |
Pinout & Package
SM15T150CA-M3/57T is housed in an SMC (DO-214AB) surface-mount package with two terminals: anode and cathode. As a bidirectional device, it has no polarity marking; both terminals are functionally symmetric and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | One side of symmetrical avalanche junction; connects to protected line without polarity constraint |
| Cathode | Terminal K | Other side of symmetrical avalanche junction; electrically identical to Anode in bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV) surges when properly mounted on 8 mm × 8 mm copper pads |
| Low clamping ratio (1.38) | VC/VWM = 207/150 ensures minimal overvoltage margin above working voltage during surge events |
| Halogen-free & RoHS-compliant (M3) | Meets IPC-1752A material declaration requirements and environmental compliance for global automotive production |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking, simplifying SMT manufacturing |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver I/O pins in engine control units exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between transceiver and connector to shunt surge energy to ground. Use Value: Limits transient voltage to ≤207 V, preventing damage to 3.3 V or 5 V transceivers while maintaining signal integrity. |
Use Scenario: Safeguarding differential CAN_H/CAN_L lines in factory automation gateways subject to EFT and surge coupling. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) suppressing asymmetrical transients without distorting differential signaling. Use Value: Maintains <100 ps timing skew between lines due to matched junction capacitance and low inductance package. |
| Telecom Power Input Stage | Consumer Appliance Motor Control |
Use Scenario: Input-stage protection for PoE-powered network switches subjected to lightning-induced surges on Ethernet ports. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail upstream of DC/DC converter, absorbing bulk surge energy. Use Value: Handles 1500 W peak power without degradation, eliminating need for cascaded TVS stages in space-constrained designs. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Across-the-line TVS connected directly across motor terminals to clamp inductive kickback. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), surviving repeated motor commutation events over product lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150CA | Lower PPPM (400 W), same VWM (150 V), larger SMA package (DO-214AC), higher RθJA (110 °C/W) | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy threats like ESD/EFT | Select SMAJ150CA only for cost-sensitive consumer applications where 1500 W surge immunity is not required. |
| SMCJ150CA | Same PPPM (1500 W), identical VWM/VC specs, but larger SMC package with 10.3 mm length vs. 7.75 mm for SM15T150CA-M3/57T | Requires more PCB area; thermal performance slightly better (RθJL = 12 °C/W) but footprint incompatible | Choose SMCJ150CA only if existing layout accommodates larger body size and higher thermal margin is critical. |
Compared with SMAJ150CA and SMCJ150CA, SM15T150CA-M3/57T delivers identical 1500 W surge capability in a 25 % smaller footprint than SMCJ150CA and triple the power rating of SMAJ150CA-enabling compact, high-reliability protection in automotive and industrial modules.
Availability
SM15T150CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, telecom power inputs, and consumer appliance motor drives requiring stable component supply and halogen-free compliance.
Supply support for SM15T150CA-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 SM15T Series was designed specifically for high-energy transient suppression in harsh environments-including under-hood automotive, industrial motor controls, and telecom infrastructure-where 1500 W surge immunity and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of SM15T150CA-M3/57T at its rated peak pulse current?
The SM15T150CA-M3/57T clamps to 207 V when subjected to its specified peak pulse current of 7.2 A under a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and defines the maximum voltage seen by downstream circuitry during a full-rated surge event. The clamping voltage remains consistent across both polarities due to the device's bidirectional symmetry.
Is SM15T150CA-M3/57T qualified for automotive applications?
SM15T150CA-M3/57T itself is halogen-free and RoHS-compliant (M3 suffix) but not AEC-Q101 qualified. For automotive use, Vishay specifies the HM3 suffix variant (e.g., SM15T150CAHM3_A/H). The "M3" in SM15T150CA-M3/57T denotes environmental compliance only-not automotive qualification. Always verify the full ordering code for AEC-Q101 status before deployment in vehicle systems.
How does the SMC package of SM15T150CA-M3/57T affect its thermal performance?
The SMC (DO-214AB) package of SM15T150CA-M3/57T provides a thermal resistance of 15 °C/W junction-to-lead when soldered to adequate copper pads, enabling efficient heat transfer during repetitive surge events. Its low-profile construction (2.62 mm height) and matte tin plating ensure compatibility with standard reflow profiles and automated optical inspection, supporting high-yield SMT assembly without thermal derating penalties.
Can SM15T150CA-M3/57T be used in unidirectional configurations?
No-SM15T150CA-M3/57T is strictly a bidirectional TVS, indicated by the "CA" suffix. Unidirectional variants use "A" (e.g., SM15T150A-M3/57T). Attempting to use SM15T150CA-M3/57T in a unidirectional role introduces unnecessary complexity and offers no performance benefit; its symmetrical IV curve is optimized for AC or floating-line protection, not DC-biased circuits.
What is the maximum reverse leakage current for SM15T150CA-M3/57T at its standoff voltage?
At its rated standoff voltage of 150 V and TA = 25 °C, SM15T150CA-M3/57T exhibits a maximum reverse leakage current (ID) of 1 μA. This ultra-low leakage ensures negligible standby power loss in battery-operated systems and prevents false triggering in high-impedance sensing circuits-critical for precision analog front-ends in automotive and industrial sensors.
SM15T150CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SM15T150CA-M3/57T FAQ
1.How can I place an order for SM15T150CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T150CA-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 SM15T150CA-M3/57T reliable?
The price and inventory of SM15T150CA-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 SM15T150CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T150CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T150CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T150CA-M3/57T?
SM15T150CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T150CA-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 SM15T150CA-M3/57T?
For technical support, including SM15T150CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T150CA-M3/57T requirements.
6.How does Aetrix verify that SM15T150CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T150CA-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 SM15T150CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T150CA-M3/57T?
All SM15T150CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T150CA-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 SM15T150CA-M3/57T part is unused and in its original packaging.
Return procedure for SM15T150CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T150CA-M3/57T 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 …
