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Vishay General Semiconductor - Diodes Division P4SMA180CAHE3/61
- Part No.:
- P4SMA180CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA180CAHE3/61.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,345
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Product details
Overview
P4SMA180CAHE3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in the P4SMA series, designed for clamping voltage transients on signal and power lines. It features a 154 V standoff voltage (VWM), 171–189 V breakdown voltage (VBR) at 1 mA, 246 V maximum clamping voltage (VC) at 1.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4SMA180CAHE3/61 datasheet, P4SMA180CAHE3/61 pinout, P4SMA180CAHE3/61 application, or P4SMA180CAHE3/61 equivalent, this device serves as an AEC-Q101-qualified, RoHS-compliant bidirectional TVS diode in SMA (DO-214AC) package with verified clamping performance, thermal derating behavior, and MSL Level 1 moisture sensitivity - critical for automotive-grade ESD and lightning transient protection design validation.
Technical Context
The P4SMA180CAHE3/61 operates as a symmetrical avalanche diode, conducting equally in both directions above its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping under repetitive 10/1000 µs transients up to 400 W at TA = 25 °C.
Thermal performance is defined by RθJA = 120 °C/W and RθJL = 30 °C/W, with junction temperature rated from –65 °C to +150 °C. Derating curves confirm 300 W peak power capability above 91 V and full compliance with J-STD-020 MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 154 V - maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping onset |
| VBR (Breakdown Voltage) | 171–189 V at 1 mA - precise avalanche initiation range ensuring predictable turn-on during transients |
| VC (Clamping Voltage) | 246 V at IPPM = 1.2 A - peak voltage seen by protected circuit during 10/1000 µs surge; determines downstream component stress |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - energy-handling capacity for single-event surges; derates to 300 W above 91 V per spec |
| ID (Reverse Leakage) | 1.0 µA max at VWM - ultra-low leakage preserves signal integrity and minimizes standby power loss |
| TJ max. | +150 °C - enables operation in under-hood automotive environments and high-ambient industrial enclosures |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward conduction mode | For bidirectional operation, functions identically to cathode under reverse polarity - no polarity marking required |
| Cathode | Current exit terminal in forward conduction mode | Symmetrical structure means either terminal serves as reference; bidirectional clamping occurs across both terminals |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns |
| 400 W peak pulse power (10/1000 µs) | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on 5.0 mm × 5.0 mm copper pads |
| AEC-Q101 qualification | Validated for automotive use including engine control units, ADAS sensors, and body electronics requiring long-term reliability |
| MSL Level 1 (260 °C) | Supports standard SMT reflow profiles without pre-baking; eliminates moisture-related popcorning risk |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector interface to shunt surge energy before it reaches signal conditioning ICs. Use Value: Limits transient voltage to ≤246 V during 1.2 A surges, preserving signal integrity and preventing latch-up in 3.3 V/5 V microcontrollers and ADC front-ends. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact input lines, operating in parallel with optocoupler input stages. Use Value: Withstands 400 W pulses while maintaining <1 µA leakage at 154 V, ensuring stable logic thresholds and eliminating false triggering in noisy factory environments. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in networked building automation devices from induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Secondary-level TVS on differential data lines, coordinated with primary gas discharge tube (GDT) protection upstream. Use Value: Fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.44) minimize data corruption window and preserve signal eye diagram integrity at 10 Mbps. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., washing machine drum drives, HVAC blowers). IC Role / Device Role / Timing Role: Across-the-rail clamp on motor supply rails, absorbing inductive kickback during PWM switching transitions. Use Value: 150 °C max junction temperature and 300 W sustained pulse rating enable reliable operation in thermally constrained appliance enclosures with minimal heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA | Same VWM (154 V), VC = 260 V at 1.1 A, 600 W PPPM rating, larger SMB (DO-214AA) package | Higher power handling but requires 30% more PCB area; better suited for non-space-constrained industrial mains inputs | Select SMBJ180CA when surge energy exceeds 400 W or board layout allows larger footprint |
| 1.5KE180CA | Same VWM/VC specs, 1500 W PPPM, axial-leaded DO-15 package, higher thermal mass but not SMT-compatible | Requires through-hole assembly and manual rework; unsuitable for automated high-volume production | Choose 1.5KE180CA only for prototyping or legacy through-hole designs where reflow compatibility is not required |
Compared with SMBJ180CA and 1.5KE180CA, the P4SMA180CAHE3/61 delivers optimal balance of AEC-Q101 qualification, SMT process compatibility, and space-constrained clamping performance - making it the preferred choice for automotive and compact industrial PCBs where MSL Level 1 compliance and RoHS adherence are mandatory.
Availability
P4SMA180CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection circuits, and consumer appliance motor drive systems requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P4SMA180CAHE3/61 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 passive components with emphasis on reliability, precision, and automotive-grade qualification.
The P4SMA series is engineered for robust transient suppression in space- and cost-sensitive applications, targeting automotive, industrial, and communications markets where AEC-Q101 compliance and high-energy clamping in miniature SMT packages are essential.
FAQ
What is the clamping voltage of P4SMA180CAHE3/61 under a 10/1000 µs surge?
The P4SMA180CAHE3/61 has a maximum clamping voltage (VC) of 246 V at 1.2 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions per Fig. 1 and Fig. 3 in Vishay document 88367, and reflects the actual voltage imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P4SMA180CAHE3/61 suitable for automotive applications?
Yes, P4SMA180CAHE3/61 is AEC-Q101 qualified and carries the HE3 suffix denoting RoHS-compliant and automotive-grade qualification. It undergoes stress testing per AEC-Q101 including HTOL, temperature cycling, and ESD, and is explicitly recommended for engine control units, ADAS sensors, and body electronics per Vishay's ordering information and application notes.
What does the "CA" suffix indicate in P4SMA180CAHE3/61?
The "CA" suffix in P4SMA180CAHE3/61 denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical electrical characteristics (VWM, VBR, VC) regardless of voltage polarity applied. This eliminates the need for polarity-aware placement during SMT assembly.
What is the thermal resistance of P4SMA180CAHE3/61?
The P4SMA180CAHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W, measured on standard 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per Fig. 2 in Vishay document 88367. These values govern thermal derating above 25 °C ambient and inform PCB copper area requirements for sustained power dissipation.
How does P4SMA180CAHE3/61 differ from unidirectional P4SMA180AHE3/61?
The P4SMA180CAHE3/61 is bidirectional with symmetrical clamping and no polarity marking, whereas P4SMA180AHE3/61 is unidirectional with a cathode band and conducts only in reverse bias. Their VWM (154 V), VBR (171–189 V), and VC (246 V) match, but the unidirectional version exhibits forward conduction and higher IFSM (40 A), making it suitable for DC rail protection with polarity control.
P4SMA180CAHE3/61 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA180CAHE3/61 FAQ
1.How can I place an order for P4SMA180CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA180CAHE3/61 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 P4SMA180CAHE3/61 reliable?
The price and inventory of P4SMA180CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA180CAHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA180CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA180CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA180CAHE3/61?
P4SMA180CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA180CAHE3/61 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 P4SMA180CAHE3/61?
For technical support, including P4SMA180CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA180CAHE3/61 requirements.
6.How does Aetrix verify that P4SMA180CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA180CAHE3/61 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 P4SMA180CAHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA180CAHE3/61?
All P4SMA180CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA180CAHE3/61, 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 P4SMA180CAHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA180CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA180CAHE3/61 Tags
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