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Vishay General Semiconductor - Diodes Division 1.5SMC200CAHM3/H
- Part No.:
- 1.5SMC200CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC200CAHM3/H.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,380
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Product details
Overview
1.5SMC200CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 200 V standoff voltage (VWM), 220 V minimum breakdown voltage (VBR), 1500 W peak pulse power (10/1000 μs), clamping voltage of 328 V at 4.6 A, and operates across -65 °C to +150 °C junction temperature. It is used to protect automotive sensor interfaces and industrial I/O lines against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC200CAHM3/H datasheet, 1.5SMC200CAHM3/H pinout, 1.5SMC200CAHM3/H application, or 1.5SMC200CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMC (DO-214AB) package compatibility, thermal resistance (RθJA = 75 °C/W), and compliance with UL 497B surge protector classification.
Technical Context
This device functions as a voltage-clamped crowbar during transient events, leveraging an avalanche breakdown mechanism to shunt surge current away from downstream circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity-dependent design constraints in AC-coupled or differential signal paths.
The 1.5SMC200CAHM3/H uses a glass-passivated silicon junction for stable breakdown characteristics and low leakage (<1 μA at 171 V), with MSL Level 1 moisture sensitivity and matte tin-plated leads compliant with J-STD-002 solderability standards. It is rated for repetitive 0.01% duty cycle pulses and supports 200 A non-repetitive forward surge current (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 200 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 220 V min - Voltage at which device enters avalanche conduction at 1 mA test current; ensures predictable turn-on threshold. |
| VC (Clamping Voltage) | 328 V at IPPM = 4.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines maximum stress on downstream components. |
| PPPM (Peak Pulse Power) | 1500 W - Surge energy handling capacity under standardized 10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 4 transients. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and high-ambient industrial environments. |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient; informs heatsinking requirements when operating near PD = 6.5 W limit. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H). Complies with UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | No polarity marking; symmetric terminals enable AC or differential line protection without orientation constraints. |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | Identical electrical role to Anode due to bidirectional construction; both terminals function identically under reverse or forward surge conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, RS-485 buses, or transformer-coupled interfaces without polarity concerns. |
| 1500 W peak pulse power (10/1000 μs) | Supports robust immunity to lightning-induced surges per IEC 61000-4-5 and ISO 7637-2 Pulse 5a/b requirements. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control modules, ADAS sensor interfaces, and body electronics. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients, improving protection margin for sensitive ICs. |
| MSL Level 1, 260 °C reflow compatible | Allows standard SMT assembly without pre-baking; suitable for high-volume automated PCB manufacturing. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp transients before they reach precision amplifier or microcontroller input pins. Use Value: Prevents latch-up or permanent damage to automotive-grade MCUs and analog front-ends during 12 V/24 V system transients. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp mounted at connector entry point, absorbing multi-kV transients induced by nearby motor switching or lightning coupling. Use Value: Maintains signal integrity and prevents false triggering or ADC saturation during industrial electromagnetic interference events. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding Ethernet PHYs, DSL line drivers, and PoE injectors from induced surges on unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pairs (e.g., TX+/TX−) to suppress common-mode and differential-mode transients simultaneously. Use Value: Enables compliance with GR-1089-CORE and ITU-T K.20/21 immunity standards without additional filtering complexity. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine, HVAC, or power tool inverters from back-EMF spikes generated by brushed DC motors. IC Role / Device Role / Timing Role: Clamp device installed across motor coil terminals or between driver output and ground to absorb inductive kickback energy. Use Value: Eliminates need for snubber RC networks while maintaining fast response (<1 ns) and long-term reliability under repetitive surge stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | Lower PPPM (600 W), same VWM/VBR range, SMB (DO-214AA) package - smaller footprint but reduced surge capacity. | Preferred for space-constrained consumer electronics where 600 W surge margin suffices; not AEC-Q101 qualified in standard variants. | Select when board area is critical and surge threat level is moderate (e.g., IEC 61000-4-5 Level 2). |
| 1.5KE200CA | Higher RθJA (100 °C/W), axial lead (DO-201AD) package, same electrical specs - legacy through-hole alternative with inferior thermal performance. | Suitable for prototyping or low-volume repairs; incompatible with automated SMT assembly and automotive vibration requirements. | Choose only for manual assembly or legacy redesigns where SMT is unavailable; avoid for new automotive designs. |
Compared with SMBJ200CA and 1.5KE200CA, the 1.5SMC200CAHM3/H delivers higher surge robustness in a surface-mount automotive-qualified package, enabling reliable protection in high-reliability embedded systems without layout or process compromises.
Availability
1.5SMC200CAHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC development, telecom infrastructure deployment, and consumer appliance production requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5SMC200CAHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, UL recognition, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC200CAHM3/H at its rated peak pulse current?
The 1.5SMC200CAHM3/H has a maximum clamping voltage (VC) of 328 V at its peak pulse current (IPPM) of 4.6 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and defines the upper voltage limit imposed on protected circuitry during surge events. The 1.5SMC200CAHM3/H maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C) with minimal derating.
Is the 1.5SMC200CAHM3/H suitable for automotive applications?
Yes, the 1.5SMC200CAHM3/H is AEC-Q101 qualified, as indicated by the "HM3" suffix denoting halogen-free, RoHS-compliant, and automotive-grade construction. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev H. The 1.5SMC200CAHM3/H is deployed in engine control units, ADAS camera modules, and body control modules where sustained reliability under thermal and mechanical stress is required.
What does the "CA" suffix mean in 1.5SMC200CAHM3/H?
The "CA" suffix in 1.5SMC200CAHM3/H denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical VWM, VBR, and VC characteristics regardless of voltage polarity. This eliminates the need for polarity-aware placement and makes the 1.5SMC200CAHM3/H ideal for protecting AC-coupled lines, differential buses like RS-485, or transformer-isolated interfaces where voltage reversals occur.
What package type does the 1.5SMC200CAHM3/H use, and what are its mounting requirements?
The 1.5SMC200CAHM3/H uses the SMC (DO-214AB) surface-mount package, measuring 7.75 mm × 6.22 mm × 2.62 mm. It requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for optimal thermal dissipation and surge current handling, as specified in the Vishay datasheet. The 1.5SMC200CAHM3/H is MSL Level 1 rated and compatible with standard 260 °C peak reflow profiles without pre-baking.
How does the 1.5SMC200CAHM3/H compare to unidirectional TVS diodes in circuit design?
Unlike unidirectional TVS diodes, the 1.5SMC200CAHM3/H provides identical clamping behavior for positive and negative transients, simplifying layout for AC or floating signal paths. It avoids the risk of incorrect polarity placement and eliminates the need for dual-diode configurations in differential protection. The 1.5SMC200CAHM3/H achieves this without sacrificing peak power rating (1500 W) or thermal performance (RθJA = 75 °C/W), making it preferable for RS-485, Ethernet, and automotive LIN bus protection.
1.5SMC200CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
1.5SMC200CAHM3/H FAQ
1.How can I place an order for 1.5SMC200CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC200CAHM3/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 1.5SMC200CAHM3/H reliable?
The price and inventory of 1.5SMC200CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC200CAHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC200CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC200CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC200CAHM3/H?
1.5SMC200CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC200CAHM3/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 1.5SMC200CAHM3/H?
For technical support, including 1.5SMC200CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC200CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC200CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC200CAHM3/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 1.5SMC200CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC200CAHM3/H?
All 1.5SMC200CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC200CAHM3/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 1.5SMC200CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC200CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC200CAHM3/H Tags
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