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Vishay General Semiconductor - Diodes Division P4SMA160AHM3/I
- Part No.:
- P4SMA160AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160AHM3/I.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,608
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Product details
Overview
P4SMA160AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 136 V standoff voltage (VWM), 152–168 V breakdown voltage (VBR at 1 mA), 219 V maximum clamping voltage (VC) at 1.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P4SMA160AHM3/I datasheet, P4SMA160AHM3/I pinout, P4SMA160AHM3/I application, or P4SMA160AHM3/I equivalent, key selection criteria include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, 150 °C max junction temperature, low incremental surge resistance, and suitability for automotive-grade transient suppression where bidirectional capability is not required.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown above its specified VBR, providing fast clamping response (<1 ns) to transient overvoltages while maintaining low leakage (<1 µA at VWM). Its glass-passivated junction ensures stable performance under repetitive surge stress and high reliability in harsh environments.
The device is rated for 400 W peak pulse power (10/1000 µs) up to 91 V and 300 W above 91 V, with thermal resistance of 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead). It meets MSL Level 1 per J-STD-020 and supports automated SMT placement with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 136 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR (Breakdown Voltage) | 152–168 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 219 V at IPPM = 1.4 A - Peak voltage seen by protected circuit during worst-case 10/1000 µs surge. |
| PPPM (Peak Pulse Power) | 400 W (≤91 V), 300 W (>91 V) - Surge energy handling capacity under standardized waveform; determines protection margin. |
| IPPM (Peak Pulse Current) | 1.4 A - Maximum non-repetitive surge current supported without degradation; derived from VC and PPPM. |
| TJ max | 150 °C - Maximum allowable junction temperature; sets thermal design limits for PCB pad layout and ambient conditions. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; informs derating requirements for sustained power dissipation. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with cathode band marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); mounting pad layout per Vishay recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration. |
| Cathode | Avalanche clamping terminal | Marked with band; connected to protected line (e.g., 12 V rail or sensor input) to clamp positive transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics use including engine control units and body modules requiring extended temperature and life-cycle reliability. |
| Halogen-free & RoHS-compliant | Meets environmental compliance standards for industrial and consumer end equipment without compromising surge robustness. |
| 400 W peak pulse power (10/1000 µs) | Provides sufficient energy absorption for common ISO 7637-2 and IEC 61000-4-5 surge events in 12 V/24 V systems. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection effectiveness for sensitive downstream ICs. |
| MSL Level 1 (260 °C peak reflow) | Enables standard lead-free reflow assembly without moisture-related damage or popcorn effect. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump and jump-start transients on 12 V/24 V battery-fed ECUs and lighting modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp positive surges exceeding 136 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers exposed to ISO 7637-2 Pulse 5a (load dump). |
Use Scenario: Protecting analog inputs of pressure, temperature, or position sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Clamping ESD and inductive switching spikes on sensor signal lines referenced to system ground. Use Value: Maintains signal integrity and prevents false readings or ADC saturation during 8 kV contact ESD events per IEC 61000-4-2. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: Safeguarding PoE-powered devices (e.g., IP cameras, access points) against surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Standoff-rated TVS on primary-side DC bus to absorb lightning-induced surges per IEC 61000-4-5 Level 3. Use Value: Limits voltage excursion to ≤219 V during 1.2/50 µs + 8/20 µs combined waveforms, preserving upstream DC-DC converter integrity. |
Use Scenario: Shielding USB-C PD and AC/DC adapter outputs from user-induced transients and cable coupling noise. IC Role / Device Role / Timing Role: Final-stage clamping device on regulated output rail before connector interface. Use Value: Ensures compliance with UL 62368-1 transient immunity requirements while supporting compact, low-cost adapter designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A | Higher PPPM (600 W), larger SMB (DO-214AA) package, same VWM/VBR range | Better suited for higher-energy surges; requires larger PCB footprint and different pad layout | Select when surge energy exceeds 400 W but space allows SMB footprint and thermal mass. |
| 1.5SMC160A | Same VWM/VBR, 1500 W PPPM, larger SMC (DO-214AB) package, higher IPPM (9.4 A) | Designed for heavy-duty industrial mains input stages; overqualified for board-level signal protection | Choose only if legacy SMC footprint exists or extreme surge immunity (IEC 61000-4-5 Level 4) is mandated. |
Compared with SMBJ160A and 1.5SMC160A, P4SMA160AHM3/I offers optimal balance of surge rating, compact SMA footprint, AEC-Q101 qualification, and halogen-free compliance - making it preferred for space-constrained automotive and industrial PCBs where 400 W clamping suffices.
Availability
P4SMA160AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power inputs, and consumer adapter outputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4SMA160AHM3/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series was developed to deliver high-surge-capability, surface-mount TVS protection for automotive, industrial, and communications systems - combining AEC-Q101 qualification, halogen-free materials, and consistent clamping performance across voltage grades.
FAQ
What is the polarity configuration of the P4SMA160AHM3/I?
The P4SMA160AHM3/I is a unidirectional TVS diode, meaning it conducts only in reverse bias during overvoltage events. Its cathode is marked with a band on the SMA package body and must be connected to the line being protected, while the anode connects to ground or the lower-potential reference. This configuration blocks forward current and clamps positive transients effectively.
Does the P4SMA160AHM3/I meet automotive qualification standards?
Yes, the P4SMA160AHM3/I carries the HM3 suffix, indicating it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification confirms validation for automotive applications including temperature cycling, humidity testing, mechanical shock, and lifetime reliability under extended operating conditions up to 150 °C junction temperature.
What is the maximum clamping voltage of the P4SMA160AHM3/I under surge conditions?
The P4SMA160AHM3/I has a maximum clamping voltage (VC) of 219 V at a peak pulse current (IPPM) of 1.4 A, tested with the standard 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream components remain within their absolute maximum ratings.
Can the P4SMA160AHM3/I be used in bidirectional applications?
No, the P4SMA160AHM3/I is strictly unidirectional. For bidirectional transient suppression - such as protecting AC-coupled signal lines or differential buses - a part with the "CA" suffix (e.g., P4SMA160CA) must be selected. Using the unidirectional P4SMA160AHM3/I in bidirectional configurations risks failure due to forward conduction during negative transients.
What is the thermal resistance and how does it affect PCB layout for the P4SMA160AHM3/I?
The P4SMA160AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W. To maintain safe operation under repetitive surges or elevated ambient temperatures, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad area increases RθJA, risking thermal runaway during high-duty-cycle events.
P4SMA160AHM3/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):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- 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)
P4SMA160AHM3/I FAQ
1.How can I place an order for P4SMA160AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160AHM3/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 P4SMA160AHM3/I reliable?
The price and inventory of P4SMA160AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160AHM3/I is usually 5 days.
3.What payment methods are accepted for P4SMA160AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160AHM3/I?
P4SMA160AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160AHM3/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 P4SMA160AHM3/I?
For technical support, including P4SMA160AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160AHM3/I requirements.
6.How does Aetrix verify that P4SMA160AHM3/I is sourced from the original manufacturer or authorized distributors?
All P4SMA160AHM3/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 P4SMA160AHM3/I meets industry standards.
7.What is the process for return or replacement of P4SMA160AHM3/I?
All P4SMA160AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160AHM3/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 P4SMA160AHM3/I part is unused and in its original packaging.
Return procedure for P4SMA160AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA160AHM3/I Tags
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