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Vishay General Semiconductor - Diodes Division P4SMA16CAHE3/61
- Part No.:
- P4SMA16CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA16CAHE3/61.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,252
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Product details
Overview
P4SMA16CAHE3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for clamping voltage transients on signal and power lines. It features a 16 V standoff voltage (VWM), 18.2 V minimum breakdown voltage (VBR), 22.5 V maximum clamping voltage (VC) at 17.8 A peak pulse current, and 400 W peak pulse power rating with a 10/1000 µs waveform - used in automotive sensor protection, industrial I/O interfaces, and telecom line surge suppression.
For engineers reviewing the P4SMA16CAHE3/61 datasheet, P4SMA16CAHE3/61 pinout, P4SMA16CAHE3/61 application, or P4SMA16CAHE3/61 equivalent, this device delivers AEC-Q101 qualification, SMA (DO-214AC) package compatibility, bidirectional transient suppression, and verified thermal performance up to 150 °C junction temperature - critical for high-reliability embedded systems requiring robust ESD and lightning surge immunity.
Technical Context
The P4SMA16CAHE3/61 operates as a bidirectional avalanche diode, conducting symmetrically in both polarities above its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5% min/max), low incremental surge resistance, and fast response time (<1 ns) to transient events.
It is rated for 400 W peak pulse power (10/1000 µs), derated to 300 W above 91 V, and dissipates 3.3 W continuously at 50 °C ambient. Thermal resistance is 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), supporting operation from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13.6 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 15.2–16.8 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 22.5 V at 17.8 A IPPM - Peak voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 400 W - Sustains single 10/1000 µs transients without failure; validated per Fig. 1 of datasheet 88367. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Negligible standby current; preserves low-power system integrity. |
| TJ max | +150 °C - Enables use in under-hood automotive and high-temperature industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A110/A111. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Molding compound meets UL 94 V-0. No polarity marking on bidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical conduction path in bidirectional mode | Connects to line being protected; identical electrical behavior as cathode due to bidirectional structure. |
| Cathode | Current exit terminal in forward bias; symmetrical conduction path in bidirectional mode | Connects to line being protected; functionally interchangeable with anode; no band marking required. |
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) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on 5 mm × 5 mm copper pads. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD >15 kV contact discharge). |
| MSL Level 1 (260 °C reflow) | Supports standard lead-free SMT assembly without moisture sensitivity handling requirements. |
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 clamp placed directly at connector interface to limit transient energy entering signal conditioning circuitry. Use Value: Maintains signal integrity under ±100 V/50 ms load dump events while meeting AEC-Q101 lifetime reliability targets. |
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 transient suppressor across input terminals, coordinated with upstream fuse and filtering. Use Value: Limits clamped voltage to ≤22.5 V, preventing damage to optocoupler input stages and microcontroller GPIOs. |
| Telecom Line Interface | Consumer USB/Display Port ESD Protection |
Use Scenario: Shielding RS-485 transceiver data lines in base station remote units exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp placed between differential pair and transceiver pins. Use Value: Clamps 10/1000 µs surges to ≤22.5 V within <1 ns, preserving signal eye diagram integrity at 10 Mbps. |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D– lines and DisplayPort AUX channels in laptops and docking stations. IC Role / Device Role / Timing Role: Standoff-clamp TVS positioned after primary polymer-based TVS to handle high-energy secondary transients. Use Value: Adds 400 W surge capacity beyond basic IEC 61000-4-2 compliance, enabling robustness against repeated 15 kV air discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | Same VWM (13.6 V) and VC (22.5 V), but 600 W PPPM rating in larger SMB (DO-214AA) package; higher thermal mass. | Better suited for higher-energy surges where PCB space allows larger footprint; not drop-in compatible due to different pad layout. | Select SMBJ16CA when surge energy exceeds 400 W or board layout permits DO-214AA mounting. |
| 1.5SMC16CA | Same electrical specs but in SMC (DO-214AB) package; 1500 W PPPM rating; higher IFSM (200 A) and RθJA (65 °C/W). | Targeted at industrial power supply inputs and mains-connected equipment requiring higher surge endurance. | Choose 1.5SMC16CA for front-end AC/DC or DC/DC converter protection where sustained surge duty cycles occur. |
Compared with P4SMA16CAHE3/61, SMBJ16CA offers higher pulse power in a physically larger package, while 1.5SMC16CA provides significantly greater surge handling and thermal performance - making both suitable for more demanding surge classes but requiring PCB redesign due to non-identical footprints.
Availability
P4SMA16CAHE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with AEC-Q101 qualification and RoHS compliance.
Supply support for P4SMA16CAHE3/61 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, efficiency, and application-specific optimization.
The P4SMA series is engineered for high-volume, surface-mount transient suppression in cost-sensitive yet reliability-critical applications - particularly automotive, industrial, and communications systems requiring standardized, AEC-Q101-qualified TVS solutions.
FAQ
What is the clamping voltage of the P4SMA16CAHE3/61 under a 10/1000 µs surge?
The P4SMA16CAHE3/61 has a maximum clamping voltage (VC) of 22.5 V at 17.8 A peak pulse current (IPPM) for a 10/1000 µs waveform, as specified in the Electrical Characteristics table of Vishay document 88367. This value is measured with the device mounted on 0.2" × 0.2" copper pads and represents the upper voltage limit imposed on protected circuitry during standardized surge events.
Is the P4SMA16CAHE3/61 suitable for automotive applications?
Yes, the P4SMA16CAHE3/61 is AEC-Q101 qualified (indicated by the HE3 suffix) and explicitly validated for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and operational capability from –65 °C to +150 °C - all confirmed in Vishay's qualification report referenced in document 88367.
Does the P4SMA16CAHE3/61 have polarity markings on the package?
No, the P4SMA16CAHE3/61 is a bidirectional TVS diode and carries no polarity marking such as a cathode band. As stated in the Mechanical Data section of document 88367, "no marking on bidirectional types." Both terminals are functionally identical, allowing flexible placement on differential or AC-coupled lines without orientation constraints.
What is the standoff voltage (VWM) and why does it matter for P4SMA16CAHE3/61?
The P4SMA16CAHE3/61 has a standoff voltage (VWM) of 13.6 V - the maximum continuous reverse voltage it can block without significant leakage. This parameter ensures the device remains non-conductive during normal operation while providing sufficient margin below its 15.2–16.8 V breakdown range, preventing false triggering in 12 V automotive or 15 V industrial systems.
How does the P4SMA16CAHE3/61 differ from unidirectional variants like P4SMA16AHE3/61?
The P4SMA16CAHE3/61 is bidirectional (denoted by "CA"), meaning it clamps symmetrically in both voltage polarities, whereas P4SMA16AHE3/61 is unidirectional ("A") with a defined cathode band and only clamps in reverse bias. The bidirectional version is used on AC signals or differential pairs; the unidirectional version suits DC power rails where polarity is fixed and forward conduction must be avoided.
P4SMA16CAHE3/61 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 17.8A
- 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)
P4SMA16CAHE3/61 FAQ
1.How can I place an order for P4SMA16CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA16CAHE3/61 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 P4SMA16CAHE3/61 reliable?
The price and inventory of P4SMA16CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA16CAHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA16CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA16CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA16CAHE3/61?
P4SMA16CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA16CAHE3/61 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 P4SMA16CAHE3/61?
For technical support, including P4SMA16CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA16CAHE3/61 requirements.
6.How does Aetrix verify that P4SMA16CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA16CAHE3/61 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 P4SMA16CAHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA16CAHE3/61?
All P4SMA16CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA16CAHE3/61, 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 P4SMA16CAHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA16CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA16CAHE3/61 Tags
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