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Vishay General Semiconductor - Diodes Division 1.5SMC200AHM3_A/H
- Part No.:
- 1.5SMC200AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC200AHM3_A/H.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,149
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Product details
Overview
1.5SMC200AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 200 V standoff voltage (VWM), 274 V maximum clamping voltage (VC) at 5.5 A peak pulse current (IPPM), and 1500 W peak pulse power capability with a 10/1000 μs waveform. It is AEC-Q101 qualified and housed in an SMC (DO-214AB) package, targeting automotive power rail and industrial sensor interface protection.
For engineers reviewing the 1.5SMC200AHM3_A/H datasheet, 1.5SMC200AHM3_A/H pinout, 1.5SMC200AHM3_A/H application, or 1.5SMC200AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, thermal resistance (RθJA = 75 °C/W), unidirectional polarity marking, AEC-Q101 qualification status, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (VBR = 190–210 V), it rapidly avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM).
The device is rated for 1500 W peak pulse power (10/1000 μs), 200 A non-repetitive forward surge current (8.3 ms half-sine), and operates across –65 °C to +150 °C junction temperature. Its 75 °C/W junction-to-ambient thermal resistance requires careful PCB pad design per Vishay's recommended 0.31" × 0.31" copper land pattern.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 171 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC operating margin. |
| VBR (Breakdown Voltage) | 190–210 V at 1 mA - Voltage at which avalanche conduction initiates; tight tolerance ensures predictable turn-on. |
| VC (Clamping Voltage) | 274 V at IPPM = 5.5 A - Maximum voltage seen by protected circuit during full-rated surge; critical for IC survival. |
| PPPM (Peak Pulse Power) | 1500 W (10/1000 μs) - Energy-handling capacity for lightning/inductive-switching transients; defines robustness class. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; mandates minimum 8.0 mm × 8.0 mm copper pad area for rated power dissipation. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suffix HM3 denotes halogen-free RoHS-compliant AEC-Q101 version. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side of protected line; must be routed with low-inductance path to ground reference. |
| Cathode | Current exit terminal during reverse avalanche clamping | Banded end; connected to higher-potential line (e.g., 24 V rail); determines clamping polarity and directionality. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without cascaded stages. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved humidity resistance vs. epoxy-passivated alternatives. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero-failure field reliability. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving clamping fidelity. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without moisture sensitivity concerns. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units (ECUs) against load dump and alternator transients per ISO 16750-2. IC Role / Device Role: Unidirectional shunt clamp placed between battery rail and ground, absorbing >100 J pulses. Use Value: Limits rail voltage to ≤274 V during 1500 W surges, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) of pressure/temperature sensors in factory automation systems exposed to relay switching noise. IC Role / Device Role: Reverse-biased TVS on signal line to ground, clamping induced spikes before they reach ADC input stages. Use Value: Maintains signal integrity by clamping transients to <274 V while adding <1 pF capacitance-negligible at 1 kHz bandwidth. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing -48 V DC feeding circuits in base station power distribution units against lightning-induced surges on outdoor cabling. IC Role / Device Role: Unidirectional TVS referenced to system ground, placed upstream of DC/DC converters. Use Value: Withstands repetitive 10/1000 μs surges at 0.01% duty cycle, enabling long-term deployment without degradation. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role: Mounted across motor terminals to clamp flyback voltage during MOSFET turn-off. Use Value: Absorbs 200 A 8.3 ms surge (IFSM), preventing gate oxide rupture in driving FETs and reducing EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A | Lower peak power rating (400 W), smaller SMA package (DO-214AC), higher RθJA (105 °C/W) | Suitable only for lower-energy transients (IEC 61000-4-5 Level 2); not AEC-Q101 qualified | Select when cost and board space outweigh surge robustness and automotive qualification requirements. |
| 1.5KE200A | Through-hole TO-204AA (DO-41) package, same VWM/VC specs, but no AEC-Q101 qualification and larger footprint | Used in legacy industrial power supplies where SMT is not required; lacks MSL Level 1 reflow compatibility | Choose for prototyping or repair where through-hole assembly is preferred and automotive compliance is unnecessary. |
Compared with SMAJ200A and 1.5KE200A, the 1.5SMC200AHM3_A/H delivers superior surge handling (1500 W vs. 400 W or 1500 W with inferior thermal management), AEC-Q101 validation for automotive use, and optimized SMT manufacturability-making it the preferred choice for high-reliability 24 V/48 V systems demanding long-term field stability.
Availability
1.5SMC200AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom DC feeds, and appliance motor drives requiring stable component supply and AEC-Q101 assurance.
Supply support for 1.5SMC200AHM3_A/H 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 efficiency, and automotive-grade qualification.
The 1.5SMC Series was engineered specifically for high-power transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where robust 1500 W clamping and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC200AHM3_A/H under full-rated surge conditions?
The 1.5SMC200AHM3_A/H exhibits a maximum clamping voltage (VC) of 274 V when subjected to its rated 5.5 A peak pulse current (IPPM) with a 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 transients. The 1.5SMC200AHM3_A/H maintains this clamping performance across its specified operating temperature range.
Is the 1.5SMC200AHM3_A/H suitable for automotive applications?
Yes, the 1.5SMC200AHM3_A/H is explicitly AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's 1.5SMC series datasheet (Rev. 09-Mar-2026). It has undergone stress testing for temperature cycling, high-temperature reverse bias, and mechanical shock-making it appropriate for under-hood and body-control module deployments. The 1.5SMC200AHM3_A/H meets automotive reliability requirements without derating.
What does the "HM3" suffix indicate in 1.5SMC200AHM3_A/H?
The "HM3" suffix in 1.5SMC200AHM3_A/H denotes a halogen-free, RoHS-compliant, and AEC-Q101 qualified variant. Per Vishay's ordering table, HM3 devices use environmentally compliant molding compounds and pass whisker testing (JESD 201 Class 2), distinguishing them from commercial-grade M3 or E3 versions. The "_A/H" further specifies packaging: 7-inch tape-and-reel with 850 units per reel.
How should the PCB layout be designed for optimal thermal performance of the 1.5SMC200AHM3_A/H?
To achieve rated 1500 W pulse power, the 1.5SMC200AHM3_A/H must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in Vishay's thermal characteristics table. These pads reduce thermal resistance (RθJA = 75 °C/W) and prevent junction overheating during repetitive surges. Avoid narrow traces; use solid copper pours connected via multiple vias to internal ground planes for sustained reliability.
Does the 1.5SMC200AHM3_A/H have bidirectional capability?
No, the 1.5SMC200AHM3_A/H is a unidirectional TVS diode, as indicated by the "A" suffix (vs. "CA" for bidirectional). Its cathode band marks the terminal that must be connected to the higher-potential line; it conducts only in reverse avalanche mode and blocks forward current above ~3.5 V. For bidirectional protection at 200 V, a 1.5SMC200CA variant would be required-but that part is not offered in the HM3 automotive grade per current Vishay documentation.
1.5SMC200AHM3_A/H 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):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC200AHM3_A/H FAQ
1.How can I place an order for 1.5SMC200AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC200AHM3_A/H 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 1.5SMC200AHM3_A/H reliable?
The price and inventory of 1.5SMC200AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC200AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC200AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC200AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC200AHM3_A/H?
1.5SMC200AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC200AHM3_A/H 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 1.5SMC200AHM3_A/H?
For technical support, including 1.5SMC200AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC200AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC200AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC200AHM3_A/H 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 1.5SMC200AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC200AHM3_A/H?
All 1.5SMC200AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC200AHM3_A/H, 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 1.5SMC200AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC200AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC200AHM3_A/H Tags
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