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Vishay General Semiconductor - Diodes Division P4SMA160AHM3/H
- Part No.:
- P4SMA160AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160AHM3/H.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,059
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Product details
Overview
P4SMA160AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 160 V standoff voltage (VWM), 171 V minimum breakdown voltage (VBR), 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 - suitable for protecting MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P4SMA160AHM3/H datasheet, P4SMA160AHM3/H pinout, P4SMA160AHM3/H application, or P4SMA160AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, SMA (DO-214AC) package compatibility, unidirectional polarity with cathode band marking, and thermal resistance (RθJA = 120 °C/W) for board-level surge resilience under repetitive transients.
Technical Context
The P4SMA160AHM3/H operates as a clamping-type TVS diode, leveraging an avalanche breakdown mechanism to limit transient voltages before they damage downstream circuitry. Its glass-passivated junction ensures stable reverse leakage (<1.0 µA at 136 V) and fast response time (<1.0 ns), critical for suppressing ESD and inductive switching spikes.
Rated for 150 °C maximum junction temperature and compliant with J-STD-020 MSL Level 1 (260 °C peak reflow), it supports automated SMT assembly on standard PCBs with 0.2" × 0.2" copper pads per terminal. The device delivers 400 W peak pulse power below 91 V and derates to 300 W above 91 V per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 136 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (Breakdown Voltage) | 152–168 V at 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 219 V at IPPM = 1.4 A (10/1000 µs) - Peak voltage seen by protected circuit; determines residual stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Surge energy handling capacity under standardized 10/1000 µs waveform; validates protection against IEC 61000-4-5 Level 3/4 surges. |
| ID (Reverse Leakage) | <1.0 µA at 136 V - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | 150 °C - Enables reliable operation in under-hood automotive or enclosed industrial enclosures without forced cooling. |
| RθJA | 120 °C/W - Thermal performance baseline for layout-dependent derating; requires ≥5.0 mm × 5.0 mm copper pad per terminal for full rating. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode indicated by a band on the body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when voltage exceeds VBR. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - enables use in ADAS power rails and engine control modules. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets IEC 61249-2-21 and JEDEC J-STD-203 requirements for green manufacturing and end-of-life processing. |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 combination wave testing up to 2 A (line-to-ground) without degradation. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles (peak 260 °C) without baking - simplifies SMT production planning. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive CMOS inputs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power input and DC-DC converter input stage. Use Value: Clamps 120 V load dump spikes to ≤219 V, preventing damage to upstream LDOs and microcontrollers rated for 28 V absolute max. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to shunt transients before reaching op-amp input. Use Value: Sub-1 µA leakage at 136 V avoids DC offset errors; fast response preserves signal integrity of sub-100 kHz sensor signals. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Safeguarding Ethernet PHY power pins and bias rails against lightning-induced surges on PoE-powered equipment. IC Role / Device Role / Timing Role: Primary-stage TVS on +48 V DC input, coordinated with secondary-side MOVs and gas discharge tubes. Use Value: 400 W rating handles repeated 10/1000 µs surges per ITU-T K.20/K.21; AEC-Q101 qualification ensures long-term field reliability. |
Use Scenario: Overvoltage suppression on AC-DC adapter primary-side rectifier output before bulk capacitor. IC Role / Device Role / Timing Role: Unidirectional TVS across bulk cap terminals to clamp switch-mode transformer leakage spikes. Use Value: 150 °C TJ max and 120 °C/W RθJA allow operation in thermally constrained adapter housings without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A | Same VWM (136 V), higher VC (259 V), larger SMB (DO-214AA) package (4.6 × 3.6 mm vs. 4.5 × 2.8 mm). | Lower power density; less suitable for ultra-compact layouts but offers higher thermal mass for sustained surges. | Select SMBJ160A when board space allows larger footprint and higher thermal inertia is prioritized over miniaturization. |
| 1.5SMC160A | Same VWM (136 V), identical VC (219 V), but in larger SMC (DO-214AB) package (7.1 × 6.2 mm); 1500 W PPPM rating. | Designed for high-energy surges (e.g., AC mains); over-specified for low-energy DC rail protection. | Choose 1.5SMC160A only when legacy SMC footprint exists or >1 kW surge immunity is required - not drop-in compatible. |
Compared with SMBJ160A and 1.5SMC160A, the P4SMA160AHM3/H delivers optimal balance of compact SMA packaging, AEC-Q101 qualification, and precise 400 W surge capability - making it the preferred choice for space-constrained automotive and industrial DC power rails where validated reliability and consistent clamping are critical.
Availability
P4SMA160AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply with halogen-free, AEC-Q101-qualified surge protection.
Supply support for P4SMA160AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P4SMA Series targets cost-effective, high-volume transient protection for automotive, industrial, and consumer electronics - engineered for automated assembly, thermal robustness, and compliance with stringent environmental and safety standards.
FAQ
What is the maximum clamping voltage of the P4SMA160AHM3/H under standard test conditions?
The P4SMA160AHM3/H has a maximum clamping voltage (VC) of 219 V when subjected to a 10/1000 µs waveform at a peak pulse current (IPPM) of 1.4 A. This value is measured per JEDEC standards and represents the highest voltage the device allows to pass through to protected circuitry during a defined transient event - a critical parameter for ensuring downstream components remain within their absolute maximum ratings.
Is the P4SMA160AHM3/H suitable for automotive applications?
Yes, the P4SMA160AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction with automotive-grade reliability validation. It is explicitly rated for operation from −65 °C to +150 °C and meets MSL Level 1 for reflow compatibility - making it appropriate for under-hood power distribution modules, body control units, and ADAS sensor power conditioning where transient immunity and long-term stability are mandatory.
What does the "HM3" suffix indicate in P4SMA160AHM3/H?
The "HM3" suffix in P4SMA160AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" specifies the 7-inch tape-and-reel packaging format (1800 units per reel), while "M3" confirms compliance with JEDEC J-STD-203 for halogen content and JESD 201 Class 2 whisker resistance - distinguishing it from commercial-grade E3 variants and supporting automotive and green manufacturing requirements.
How does the P4SMA160AHM3/H compare to bidirectional TVS diodes in circuit design?
The P4SMA160AHM3/H is unidirectional and must be oriented with its cathode toward the protected line and anode to ground - unlike bidirectional types that suppress transients in both polarities. This makes it ideal for DC power rails where polarity is fixed and reverse conduction is undesirable. Its lower leakage and tighter VBR tolerance improve efficiency in DC-biased applications compared to bidirectional equivalents like P4SMA160CA.
What thermal derating applies to the P4SMA160AHM3/H above 25 °C ambient?
The P4SMA160AHM3/H exhibits linear thermal derating above 25 °C ambient, with its peak pulse power (PPPM) reduced according to Figure 2 in the Vishay datasheet (Document 88367). At 75 °C ambient, PPPM drops to approximately 320 W; at 125 °C, it falls to ~200 W. Full 400 W rating assumes 0.2" × 0.2" copper pads per terminal and TA = 25 °C - layout and board thermal design directly impact real-world surge capability.
P4SMA160AHM3/H 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/H FAQ
1.How can I place an order for P4SMA160AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160AHM3/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 P4SMA160AHM3/H reliable?
The price and inventory of P4SMA160AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160AHM3/H is usually 5 days.
3.What payment methods are accepted for P4SMA160AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160AHM3/H?
P4SMA160AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160AHM3/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 P4SMA160AHM3/H?
For technical support, including P4SMA160AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160AHM3/H requirements.
6.How does Aetrix verify that P4SMA160AHM3/H is sourced from the original manufacturer or authorized distributors?
All P4SMA160AHM3/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 P4SMA160AHM3/H meets industry standards.
7.What is the process for return or replacement of P4SMA160AHM3/H?
All P4SMA160AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160AHM3/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 P4SMA160AHM3/H part is unused and in its original packaging.
Return procedure for P4SMA160AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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