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Vishay General Semiconductor - Diodes Division P4SMA200AHM3/I
- Part No.:
- P4SMA200AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA200AHM3/I.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,467
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Product details
Overview
P4SMA200AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 200 V standoff voltage (VWM), 210 V minimum breakdown voltage (VBR), and 274 A peak pulse current (IPPM) under 10/1000 µs waveform. It delivers 400 W peak pulse power, features glass-passivated junction, AEC-Q101 qualification, and is used to protect MOSFETs and sensor signal lines in automotive power electronics against inductive switching transients.
For engineers reviewing the P4SMA200AHM3/I datasheet, P4SMA200AHM3/I pinout, P4SMA200AHM3/I application, or P4SMA200AHM3/I equivalent, key selection criteria include clamping voltage (VC = 274 V at IPPM), low incremental surge resistance, MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance with HM3 suffix - critical for high-reliability automotive and industrial PCB designs.
Technical Context
The P4SMA200AHM3/I operates as a unidirectional clamping device, conducting only during reverse overvoltage events while blocking forward current up to its 200 V stand-off rating. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM).
Designed for transient suppression per IEC 61000-4-5, it responds in <1 ns to fast-rising surges and maintains clamping performance across -65 °C to +150 °C junction temperature range. Thermal resistance is 120 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads, supporting reliable operation without heatsinking in space-constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 200 V - maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown |
| VBR (Breakdown Voltage) | 190–210 V at 1 mA test current - precise conduction threshold enabling predictable overvoltage protection |
| VC (Clamping Voltage) | 274 V at 274 A (10/1000 µs) - limits transient voltage seen by downstream ICs to safe levels |
| PPPM (Peak Pulse Power) | 400 W - sustains single high-energy transients without failure; derates to 300 W above 91 V per spec |
| ID (Reverse Leakage) | <1.0 µA at 200 V - negligible standby current, preserving system efficiency and signal integrity |
| TJ max | +150 °C - supports under-hood automotive environments and industrial ambient conditions |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connects to protected line; conducts surge current to ground during overvoltage event |
| Anode (unbanded end) | Reference node / ground return | Typically tied to system ground or low-impedance return path; completes clamping circuit |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Handles high-energy transients common in automotive load-dump and inductive switch-off events |
| AEC-Q101 qualified (HM3 suffix) | Meets automotive stress-test requirements for vibration, thermal cycling, and humidity exposure |
| Halogen-free & RoHS-compliant | Complies with environmental regulations and enables use in green manufacturing and export-sensitive markets |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT assembly processes without pre-baking |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes voltage overshoot during clamping, reducing stress on protected MOSFETs and sensors |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in body control modules from load-dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤274 V, preventing damage to downstream PMICs and microcontrollers rated for 300 V absolute maximum. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors in motor drives exposed to EMI and switching noise. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on 4–20 mA or 0–10 V signal lines before ADC input conditioning. Use Value: Sub-1 ns response time and <1 µA leakage preserve signal accuracy and prevent false triggering in precision measurement circuits. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY power pins and bias rails in outdoor telecom equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS on 3.3 V/5 V supply rails feeding PHY ICs and magnetics interface. Use Value: 274 V clamping voltage ensures compliance with ITU-T K.20/21 immunity standards for Class B equipment. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp flyback voltage during PWM switching. Use Value: 400 W pulse rating absorbs repetitive 10/1000 µs energy bursts without degradation, extending motor driver lifespan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200AHE3/A | Same VWM (200 V), same package (SMA), but AEC-Q101 qualified via HE3 suffix (RoHS, non-halogen-free) | Approved for automotive but lacks halogen-free certification required in some Tier 1 OEM specs | Select when halogen-free requirement is not mandated and cost optimization is prioritized |
| 1.5SMC200A | Higher package thermal resistance (RθJA = 150 °C/W vs. 120 °C/W); same VWM, VC = 274 V, but lower PPPM (1500 W vs. 400 W) | Used in less thermally constrained industrial boards; not AEC-Q101 qualified | Choose only for non-automotive applications where board-level thermal management allows larger footprint |
Compared with SMAJ200AHE3/A and 1.5SMC200A, the P4SMA200AHM3/I uniquely combines halogen-free construction, AEC-Q101 qualification, and optimized thermal performance in the compact SMA package - making it the preferred choice for next-generation automotive ECUs and high-density industrial controllers requiring both regulatory compliance and robust surge handling.
Availability
P4SMA200AHM3/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom line card surge protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for P4SMA200AHM3/I 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, efficiency, and application-specific performance.
The P4SMA Series was developed for high-reliability transient suppression in automotive, industrial, and telecom systems - delivering consistent clamping behavior, low leakage, and robust surge endurance in surface-mount form factors.
FAQ
What is the clamping voltage of the P4SMA200AHM3/I at its rated peak pulse current?
The P4SMA200AHM3/I has a maximum clamping voltage (VC) of 274 V when subjected to its rated peak pulse current (IPPM) of 274 A under the standardized 10/1000 µs waveform. This value is measured at TA = 25 °C on 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during transient events. The P4SMA200AHM3/I maintains this clamping performance across its full operating temperature range.
Is the P4SMA200AHM3/I suitable for automotive applications?
Yes, the P4SMA200AHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It meets stress-test requirements for temperature cycling, high-temperature reverse bias, and mechanical shock - making it suitable for engine control units, body electronics, and ADAS power supplies. The P4SMA200AHM3/I is explicitly listed in Vishay's AEC-Q101 qualified product matrix for the P4SMA family.
What does the "HM3" suffix mean in P4SMA200AHM3/I?
The "HM3" suffix in P4SMA200AHM3/I denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, with "I" indicating 7500-unit tape-and-reel packaging on 13-inch reels. This distinguishes it from commercial-grade M3 (halogen-free, RoHS, non-automotive) and HE3 (RoHS, AEC-Q101, but not halogen-free) variants. The P4SMA200AHM3/I thus satisfies stringent environmental and reliability mandates for Tier 1 automotive suppliers.
How does the P4SMA200AHM3/I compare to bidirectional TVS diodes like P4SMA200CA?
The P4SMA200AHM3/I is unidirectional and designed for DC rail protection where polarity is fixed - offering tighter leakage control (<1.0 µA) and higher surge capability than its bidirectional counterpart P4SMA200CA (which has symmetric clamping but higher ID). Unlike P4SMA200CA, the P4SMA200AHM3/I uses cathode marking for orientation and cannot suppress AC transients. Use the P4SMA200AHM3/I when protecting polarized supplies such as automotive battery inputs or DC-DC converter inputs.
What is the thermal resistance of the P4SMA200AHM3/I, and how does it affect layout design?
The P4SMA200AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - matching the test condition defined in Vishay's datasheet. This value assumes no additional heatsinking; designers must allocate adequate copper area and avoid thermal isolation to maintain TJ ≤ 150 °C under repetitive surge conditions. The P4SMA200AHM3/I's RθJA is 25% lower than legacy SMB/SMA packages, enabling denser layouts without thermal derating penalties.
P4SMA200AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 1.1A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
P4SMA200AHM3/I FAQ
1.How can I place an order for P4SMA200AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA200AHM3/I 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 P4SMA200AHM3/I reliable?
The price and inventory of P4SMA200AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA200AHM3/I is usually 5 days.
3.What payment methods are accepted for P4SMA200AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA200AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA200AHM3/I?
P4SMA200AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA200AHM3/I 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 P4SMA200AHM3/I?
For technical support, including P4SMA200AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA200AHM3/I requirements.
6.How does Aetrix verify that P4SMA200AHM3/I is sourced from the original manufacturer or authorized distributors?
All P4SMA200AHM3/I 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 P4SMA200AHM3/I meets industry standards.
7.What is the process for return or replacement of P4SMA200AHM3/I?
All P4SMA200AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA200AHM3/I, 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 P4SMA200AHM3/I part is unused and in its original packaging.
Return procedure for P4SMA200AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA200AHM3/I Tags
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