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Vishay General Semiconductor - Diodes Division P4SMA16CAHE3_A/I
- Part No.:
- P4SMA16CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA16CAHE3_A/I.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,604
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Product details
Overview
P4SMA16CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 16 V standoff voltage (VWM), 17.8 V minimum breakdown voltage (VBR), 22.5 V maximum clamping voltage (VC) at 17.8 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P4SMA16CAHE3_A/I datasheet, P4SMA16CAHE3_A/I pinout, P4SMA16CAHE3_A/I application, or P4SMA16CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 120 °C/W junction-to-ambient thermal resistance, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping performance without polarity dependency. Its glass-passivated junction ensures stable reverse leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), critical for suppressing ESD and inductive switching spikes.
The device is rated for repetitive 400 W surge handling under 0.01% duty cycle (10/1000 µs), derated above 25 °C per Fig. 2, 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 MSL Level 1 moisture sensitivity and LF peak reflow tolerance up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13.6 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 15.2–16.8 V at 1.0 mA test current - Tight tolerance ensures predictable turn-on threshold for transient suppression. |
| VC (Clamping Voltage) | 22.5 V at 17.8 A IPPM - Limits peak voltage seen by protected circuit during worst-case surge event. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Sustains high-energy transients common in automotive load-dump and inductive switch-off events. |
| RθJA | 120 °C/W - Thermal resistance dictates required PCB copper area (0.2" × 0.2") for reliable operation at full power. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JESD22 standards. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.0 mm × 5.0 mm pad layout; compatible with standard SMT pick-and-place equipment. |
Pinout & Package
Package: SMA (DO-214AC), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One terminal of symmetrical junction; conducts during positive half-cycle surges. |
| Cathode | Transient current entry (negative polarity) | Second terminal of symmetrical junction; conducts during negative half-cycle surges; no band marking. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 400 W peak pulse power | Handles high-energy transients from relay coil de-energization or motor commutation in industrial controls. |
| AEC-Q101 qualification | Validates suitability for under-hood automotive applications including body control modules and sensor interfaces. |
| Glass passivated junction | Ensures long-term stability of leakage current and breakdown voltage over temperature and lifetime. |
| MSL Level 1 rating | Permits unlimited floor life and standard reflow without baking, simplifying manufacturing logistics. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector interface to shunt surge energy before reaching signal conditioning ICs. Use Value: Maintains signal integrity by limiting transient voltage to ≤22.5 V, preventing latch-up or damage to 3.3 V/5 V microcontrollers and ADC front-ends. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against inductive kickback from solenoids and contactors. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC field wiring, coordinated with series impedance to limit let-through energy. Use Value: Enables robust operation in harsh factory environments with >100,000 surge cycles while maintaining <1 µA leakage at 13.6 V standby. |
| Consumer Appliance Motor Control | Telecom Line Interface Protection |
Use Scenario: Suppressing back-EMF from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Fast-response transient suppressor mounted across motor terminals or H-bridge outputs. Use Value: Prevents MOSFET failure by clamping 400 W spikes within nanoseconds, extending power stage MTBF beyond 10 years. |
Use Scenario: Protecting Ethernet PHYs and RS-485 transceivers from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage clamping device in multi-stage protection architecture, absorbing bulk surge energy before TVS arrays or GDTs. Use Value: Delivers 22.5 V clamping at 17.8 A with <1 ns response, reducing stress on downstream polymeric PTCs and secondary TVS devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | Higher package thermal resistance (RθJA = 140 °C/W), same VWM/VBR/VC specs, SMB (DO-214AA) footprint. | Larger footprint increases PCB area use; lower power density limits sustained surge repetition rate. | Select when existing layout uses SMB pads or requires higher mechanical robustness than SMA. |
| 1.5KE16CA | Through-hole DO-201 package, 1500 W PPPM rating, same 16 V VWM but higher VC (26.5 V). | Not suitable for SMT-only production; higher clamping voltage reduces margin for low-voltage ICs. | Choose only for legacy through-hole designs where board space permits and clamping voltage margin allows. |
Compared with SMBJ16CA and 1.5KE16CA, P4SMA16CAHE3_A/I offers optimal balance of SMT manufacturability, AEC-Q101 compliance, and precise 22.5 V clamping - making it preferred for new automotive and industrial designs requiring compact, qualified, and repeatable surge protection.
Availability
P4SMA16CAHE3_A/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance motor drives requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for P4SMA16CAHE3_A/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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive yet performance-critical transient suppression needs in automotive, industrial, and telecom markets - engineered for high-volume SMT assembly, AEC-Q101 validation, and consistent clamping behavior across temperature and lifetime.
FAQ
What does the "CA" suffix indicate in P4SMA16CAHE3_A/I?
The "CA" suffix in P4SMA16CAHE3_A/I denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P4SMA16A), P4SMA16CAHE3_A/I has no cathode marking and functions identically in either polarity - essential for protecting AC-coupled or floating signal paths such as CAN bus lines or differential sensor interfaces.
Is P4SMA16CAHE3_A/I suitable for automotive applications?
Yes, P4SMA16CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix and revision-coded ordering (e.g., _A/I). It meets requirements for temperature cycling, high-temperature reverse bias, and ESD robustness per JESD22 standards, and is commonly deployed in body control modules, ADAS sensor interfaces, and infotainment system power rails where ISO 7637-2 pulse immunity is mandatory.
What is the maximum clamping voltage of P4SMA16CAHE3_A/I under surge conditions?
The maximum clamping voltage (VC) of P4SMA16CAHE3_A/I is 22.5 V at 17.8 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage imposed on the protected circuit during a worst-case transient - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces and preventing latch-up in downstream ICs.
How does the SMA (DO-214AC) package of P4SMA16CAHE3_A/I affect thermal performance?
The SMA (DO-214AC) package of P4SMA16CAHE3_A/I delivers a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This thermal performance enables reliable 400 W surge handling at room temperature but requires careful PCB layout - insufficient copper area or poor thermal vias will cause excessive junction heating and premature failure during repetitive surges.
What is the reverse leakage current specification for P4SMA16CAHE3_A/I at its standoff voltage?
P4SMA16CAHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 13.6 V standoff voltage (VWM), measured at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor circuits and minimizes standby power loss in battery-operated systems - a direct result of its glass-passivated junction and tight process control during manufacturing.
P4SMA16CAHE3_A/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:
- Active
- 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_A/I FAQ
1.How can I place an order for P4SMA16CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA16CAHE3_A/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 P4SMA16CAHE3_A/I reliable?
The price and inventory of P4SMA16CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA16CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA16CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA16CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA16CAHE3_A/I?
P4SMA16CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA16CAHE3_A/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 P4SMA16CAHE3_A/I?
For technical support, including P4SMA16CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA16CAHE3_A/I requirements.
6.How does Aetrix verify that P4SMA16CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA16CAHE3_A/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 P4SMA16CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA16CAHE3_A/I?
All P4SMA16CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA16CAHE3_A/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 P4SMA16CAHE3_A/I part is unused and in its original packaging.
Return procedure for P4SMA16CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA16CAHE3_A/I Tags
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