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Vishay General Semiconductor - Diodes Division P4SMA160A-M3/5A
- Part No.:
- P4SMA160A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160A-M3/5A.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,511
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Product details
Overview
P4SMA160A-M3/5A 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 160 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 P4SMA160A-M3/5A datasheet, P4SMA160A-M3/5A pinout, P4SMA160A-M3/5A application, or P4SMA160A-M3/5A equivalent, key selection criteria include unidirectional polarity, 136 VWM-compatible system voltage margin, low thermal resistance (RθJA = 120 °C/W), and halogen-free RoHS-compliant M3 termination for automotive-grade reliability without AEC-Q101 qualification.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and fast response time (<1.0 ps), enabling suppression of ESD, inductive switching spikes, and lightning-induced surges before downstream components are damaged.
The device is rated for 40 A non-repetitive forward surge current (IFSM) and supports continuous power dissipation of 3.3 W at 50 °C on infinite heatsink. Junction temperature range spans −65 °C to +150 °C, with thermal resistance from junction to lead (RθJL) at 30 °C/W - critical for PCB copper pad layout design per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 136 V - maximum continuous reverse operating voltage before clamping begins; sets safe margin above 120 V nominal DC bus. |
| VBR (Breakdown Voltage) | 152–168 V at 1 mA - defines precise avalanche onset; tight 10.5% tolerance enables predictable protection threshold. |
| VC (Clamping Voltage) | 219 V at IPPM = 1.4 A - peak voltage seen by protected circuit during 10/1000 µs transient; determines residual stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 400 W - energy-handling capacity under standard 10/1000 µs waveform; sufficient for IEC 61000-4-5 Level 3 surges. |
| ID (Reverse Leakage) | <1.0 µA at VWM - negligible standby current draw; avoids loading sensitive analog or low-power sensor circuits. |
| TJ max. | +150 °C - maximum junction temperature; allows operation in high-ambient environments like motor drives or enclosed power modules. |
| RθJA | 120 °C/W - thermal resistance to ambient; requires minimum 5.0 mm × 5.0 mm copper pads per terminal for full power rating. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path); not used in normal reverse-biased protection mode. |
| Cathode | Current exit point during reverse avalanche clamping | Connected to protected line (e.g., 120 V rail); conducts surge current to ground when transient exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 surges up to 1 kV open-circuit / 0.5 kA short-circuit without degradation. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure in industrial environments. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture-related popcorning or delamination risks. |
| Low profile SMA package | 0.208" × 0.157" footprint fits high-density layouts; compatible with automated pick-and-place equipment. |
| Halogen-free M3 termination | Meets environmental compliance requirements for consumer and industrial end-equipment without sacrificing solderability. |
Applications
| Industrial Motor Drive DC Bus Protection | Automotive Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Suppresses inductive kickback from relay coils and brushed DC motors on 120 V DC bus rails. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between bus rail and chassis ground to limit transient overvoltage. Use Value: Limits voltage excursion to ≤219 V during 1.4 A surge, preventing gate oxide damage to 200 V-rated MOSFETs and driver ICs. |
Use Scenario: Protects 12 V–14 V input stage of BCM from load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff voltage (136 V) accommodates ISO 7637-2 Pulse 5a (up to 120 V), clamping excess energy within safe limits. Use Value: Withstands 40 A surge current (IFSM), surviving repeated battery reversal and alternator load dump events without failure. |
| Telecom Remote Radio Unit (RRU) Power Interface | Industrial PLC Analog Input Protection |
Use Scenario: Shields 48 V DC power input of outdoor RRU from lightning-induced surges on tower-mounted power feeds. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of DC/DC converter; coordinates with secondary MOV or GDT stages. Use Value: Fast <1 ps response captures initial surge edge; 219 V VC ensures downstream 60 V-rated converters remain within absolute maximum ratings. |
Use Scenario: Guards 0–10 V or 4–20 mA analog input channels against field-wiring transients in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (<1 µA) unidirectional TVS prevents signal offset drift while providing surge immunity. Use Value: Tight VBR tolerance (±5%) ensures consistent clamping across production lots, maintaining measurement accuracy in precision ADC front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ160A | Same VWM (136 V), identical SMA package, but rated for 400 W only up to 91 V; above 91 V, PPPM drops to 300 W. | Limited to lower-energy transients in cost-sensitive consumer designs where full 400 W capability is not required. | Select SMAJ160A only if system-level surge testing confirms 300 W clamping suffices and thermal derating is acceptable. |
| 1.5SMC160A | Higher package thermal mass (SMC/DO-214AB), RθJA = 100 °C/W, 1.5 kW peak power rating - but larger footprint (0.325" × 0.285"). | Better suited for high-reliability industrial systems requiring extended surge endurance and higher average power handling. | Choose 1.5SMC160A when board space permits and thermal management demands >400 W sustained pulse capability. |
Compared with SMAJ160A, P4SMA160A-M3/5A delivers full 400 W clamping capability across its entire voltage range, while 1.5SMC160A offers superior thermal performance at the cost of PCB area - making P4SMA160A-M3/5A optimal for space-constrained, high-surge industrial modules needing guaranteed 400 W rating.
Availability
P4SMA160A-M3/5A is available at Aetrix Electronics and suitable for industrial motor drives, telecom remote radio units, automotive body control modules, and PLC analog input protection requiring stable component supply and halogen-free compliance.
Supply support for P4SMA160A-M3/5A 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 P4SMA Series targets high-volume, space-constrained applications requiring robust transient suppression in commercial and industrial environments - engineered for automated assembly, thermal resilience, and consistent clamping performance across temperature and life cycles.
FAQ
What is the maximum clamping voltage of P4SMA160A-M3/5A under a 10/1000 µs surge?
The maximum clamping voltage (VC) of P4SMA160A-M3/5A is 219 V at a peak pulse current (IPPM) of 1.4 A with a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and defines the highest voltage imposed on protected circuitry during standardized surge events - critical for ensuring downstream components like 200 V MOSFETs remain within safe operating limits. The P4SMA160A-M3/5A maintains this clamping performance across its specified temperature range.
Is P4SMA160A-M3/5A AEC-Q101 qualified?
No, P4SMA160A-M3/5A is not AEC-Q101 qualified. The "M3" suffix indicates halogen-free, RoHS-compliant commercial-grade construction. AEC-Q101 qualification applies only to variants with "HM3" or "HE3" suffixes (e.g., P4SMA160AHM3_B/I). For automotive applications requiring AEC-Q101, engineers must select the HM3 variant - the P4SMA160A-M3/5A is intended for industrial, telecom, and consumer systems where automotive qualification is not mandated. Always verify qualification status using the full ordering code.
What does the "/5A" in P4SMA160A-M3/5A signify?
The "/5A" denotes the packaging configuration: 13-inch diameter plastic tape and reel containing 7500 units. This differs from "/61", which specifies a 7-inch reel with 1800 units. The "/5A" format supports high-volume SMT production lines requiring longer uninterrupted placement runs and reduced changeover frequency. All electrical and thermal specifications of P4SMA160A-M3/5A remain identical regardless of reel size - only logistics and handling differ.
How does the thermal resistance of P4SMA160A-M3/5A affect PCB layout?
P4SMA160A-M3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W, which assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve rated 400 W peak power, PCB layout must allocate adequate copper area and consider internal plane connections. Reducing pad size increases RθJA, derating both peak and continuous power - violating the 3.3 W PD rating at 50 °C if insufficient copper is used. Thermal simulation or empirical testing is recommended for high-duty-cycle applications.
Can P4SMA160A-M3/5A be used in bidirectional protection circuits?
No, P4SMA160A-M3/5A is a unidirectional TVS diode, identifiable by its cathode band marking and specified parameters (VWM, VBR, VC) for reverse-biased operation only. Bidirectional protection requires a CA-suffixed part such as P4SMA160CA. Using P4SMA160A-M3/5A in AC or floating signal lines would result in forward conduction during negative half-cycles, causing failure or incorrect clamping. Always match device polarity to circuit topology - the P4SMA160A-M3/5A is strictly for DC rail or referenced signal line protection.
P4SMA160A-M3/5A 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:
- Active
- 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:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA160A-M3/5A FAQ
1.How can I place an order for P4SMA160A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160A-M3/5A 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 P4SMA160A-M3/5A reliable?
The price and inventory of P4SMA160A-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160A-M3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA160A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160A-M3/5A?
P4SMA160A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160A-M3/5A 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 P4SMA160A-M3/5A?
For technical support, including P4SMA160A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160A-M3/5A requirements.
6.How does Aetrix verify that P4SMA160A-M3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA160A-M3/5A 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 P4SMA160A-M3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA160A-M3/5A?
All P4SMA160A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160A-M3/5A, 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 P4SMA160A-M3/5A part is unused and in its original packaging.
Return procedure for P4SMA160A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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