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Vishay General Semiconductor - Diodes Division P4SMA160CAHE3/5A
- Part No.:
- P4SMA160CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160CAHE3/5A.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,865
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Product details
Overview
P4SMA160CAHE3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 160 V standoff voltage (VWM), 179 V breakdown voltage (VBR min), and 219 V clamping voltage (VC) at 1.4 A peak pulse current (IPPM), designed to protect signal lines and power rails in automotive and industrial electronics against ESD and lightning-induced transients.
For engineers reviewing the P4SMA160CAHE3/5A datasheet, P4SMA160CAHE3/5A pinout, P4SMA160CAHE3/5A application, or P4SMA160CAHE3/5A equivalent, key selection criteria include its AEC-Q101 qualification, 400 W peak pulse power (10/1000 μs), low clamping ratio (VC/VBR ≈ 1.22), bidirectional symmetry, and RoHS-compliant matte tin terminals suitable for automated SMT assembly.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR, diverting surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability.
The P4SMA160CAHE3/5A is specifically engineered for bidirectional protection-no polarity marking on the SMA body-and delivers symmetrical clamping in both directions, with identical VBR (152–168 V), VC (219 V), and IPPM (1.4 A) ratings across forward and reverse quadrants per JEDEC JESD22-A114F test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 136 V - Maximum continuous reverse working voltage before leakage exceeds 1 μA; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 152–168 V at 1 mA - Voltage range where device transitions from high- to low-impedance state; ensures predictable triggering under transients. |
| VC (Clamping) | 219 V at IPPM = 1.4 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream ICs/MOSFETs. |
| PPPM | 400 W (10/1000 μs) - Peak transient energy absorption capacity; enables robust protection against IEC 61000-4-5 Level 3 surges (1 kV/42 Ω). |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.28 mm length, 4.50 mm width, and 2.29 mm height; compatible with standard 0.2" × 0.2" copper pad layout. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification; supports under-hood and infotainment applications. |
| Thermal Resistance | RθJA = 120 °C/W - Junction-to-ambient thermal resistance on standard PCB pads; informs derating above TA = 25 °C per Fig. 2. |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, no polarity marking for bidirectional operation, compliant with UL 94 V-0 flammability rating and J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal 1 | One side of symmetric PN junction; connects to line being protected (e.g., CAN_H or RS-485 A); no cathode band marking. |
| Cathode | Terminal 2 | Other side of symmetric PN junction; connects to reference (e.g., ground or common bus); functionally identical to Anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR (152–168 V), VC (219 V), and IPPM (1.4 A) in both polarities-enables single-device protection of AC-coupled or differential lines like CAN, RS-485, or USB D+/D−. |
| 400 W peak pulse power | Rated per 10/1000 μs waveform with 0.01% duty cycle-supports repeated surge events in industrial motor drives and telecom power supplies without degradation. |
| Low incremental surge resistance | Ensures minimal voltage overshoot during fast-rising transients (<1 ns rise time), critical for protecting sensitive 3.3 V or 5 V logic interfaces. |
| AEC-Q101 qualification | Validated for automotive environments including -65 °C to +150 °C operation, thermal shock, and humidity exposure-approved for use in ADAS camera modules and body control units. |
| MSL Level 1 handling | Unlimited floor life at ≤30 °C/60% RH-eliminates bake requirements prior to reflow, reducing manufacturing cost and process complexity. |
Applications
| Automotive CAN Bus Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting CAN_H/CAN_L lines in vehicle ECUs from load dump, jump-start spikes, and ESD events per ISO 16750-2 and ISO 10605. IC Role / Device Role / Timing Role: Bidirectional shunt TVS placed directly at connector entry point to clamp transients before reaching CAN transceiver (e.g., TJA1042). Use Value: Clamps 1 kV/50 Ω surge to ≤219 V within <1 ns, preserving CAN signal integrity and preventing transceiver latch-up or permanent damage. |
Use Scenario: Safeguarding RS-485 transceivers (e.g., MAX1487) in factory automation PLCs against induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Differential-line TVS mounted across A/B terminals to suppress common-mode and differential-mode transients simultaneously. Use Value: Symmetric 219 V clamping limits voltage stress on ±7 V-rated transceivers, enabling reliable 1 Mbps communication over 1200 m cables. |
| Consumer USB Port ESD Protection | Telecom Power Rail Clamp |
|
Use Scenario: Adding secondary-level ESD protection to USB 2.0 data lines in set-top boxes and smart displays, supplementing internal IC-level protection. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed between USB D+ and D− to absorb ±15 kV contact discharge per IEC 61000-4-2. Use Value: Sub-100 pF junction capacitance (typ.) avoids signal integrity loss at 480 Mbps, while 219 V clamping prevents data corruption or PHY damage. |
Use Scenario: Clamping 48 V DC power input rails in VoIP phones and base stations against accidental 48 V/200 V surges during hot-swap or wiring faults. IC Role / Device Role / Timing Role: Primary rail TVS connected between VIN and GND to limit overvoltage before DC-DC converter input stage. Use Value: 400 W peak power rating sustains multiple 10/1000 μs surges up to 1.4 A without parametric shift, ensuring system uptime in field deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA | Same VWM (136 V), VBR (152–168 V), and VC (219 V), but SMB package (DO-214AA) - 20% larger footprint, higher RθJA (100 °C/W vs. 120 °C/W). | Preferred where board space allows larger pad layout and higher thermal mass is needed for sustained surge duty cycles. | Select SMBJ160CA only if existing layout uses SMB footprints or requires lower thermal resistance under forced-air cooling. |
| 1.5KE160CA | Through-hole TO-218 package, same electrical specs but 1.5 kW peak power rating - significantly larger size, incompatible with SMT-only production. | Used in legacy industrial power supplies where through-hole assembly remains standard and higher surge margin is required. | Choose 1.5KE160CA only for retrofit designs with existing TO-218 footprints or where manual repair accessibility is prioritized over miniaturization. |
Compared with SMBJ160CA and 1.5KE160CA, the P4SMA160CAHE3/5A offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and full 400 W surge capability-making it the preferred choice for new automotive and space-constrained industrial designs requiring automated assembly and automotive-grade reliability.
Availability
P4SMA160CAHE3/5A is available at Aetrix Electronics and suitable for automotive CAN bus protection, industrial RS-485 interface hardening, consumer USB port ESD suppression, and telecom 48 V power rail clamping requiring stable component supply, AEC-Q101 compliance, and RoHS-compliant SMT packaging.
Supply support for P4SMA160CAHE3/5A 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 high-reliability, high-efficiency, and automotive-qualified solutions.
The P4SMA Series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for surface-mount transient suppression in automotive, industrial, and telecom systems where compact size, bidirectional symmetry, and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of the P4SMA160CAHE3/5A under a 10/1000 μs surge?
The P4SMA160CAHE3/5A has a maximum clamping voltage (VC) of 219 V when subjected to its rated peak pulse current (IPPM) of 1.4 A using the standard 10/1000 μs waveform. This value is measured per JEDEC JESD22-A114F and represents the highest voltage the protected circuit will experience during such a transient event. The P4SMA160CAHE3/5A maintains this clamping performance symmetrically in both directions due to its bidirectional design.
Is the P4SMA160CAHE3/5A qualified for automotive applications?
Yes, the P4SMA160CAHE3/5A carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. It has passed all required stress tests-including temperature cycling, high-temperature reverse bias (HTRB), and ESD-per AEC-Q101 Rev G. This makes the P4SMA160CAHE3/5A suitable for under-hood and cabin applications such as body control modules, infotainment systems, and ADAS sensor interfaces.
What does the "CA" suffix mean in P4SMA160CAHE3/5A?
The "CA" suffix in P4SMA160CAHE3/5A denotes a bidirectional configuration: the device provides symmetrical transient suppression in both forward and reverse directions, with identical electrical characteristics (VBR, VC, IPPM) across polarity. Unlike unidirectional variants (e.g., P4SMA160A), the P4SMA160CAHE3/5A has no cathode band marking and is used where AC signals, differential buses, or polarity-agnostic protection is required.
What is the thermal resistance of the P4SMA160CAHE3/5A, and how does it affect derating?
The P4SMA160CAHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value governs power derating above TA = 25 °C: for example, at 85 °C ambient, the maximum allowable continuous power dissipation drops to approximately 1.8 W (calculated via linear derating curve in Fig. 2 of the datasheet). The P4SMA160CAHE3/5A must be applied within these thermal limits to ensure long-term reliability.
How does the P4SMA160CAHE3/5A compare to unidirectional P4SMA160A in terms of circuit implementation?
The P4SMA160CAHE3/5A differs fundamentally from the unidirectional P4SMA160A in polarity handling: the P4SMA160CAHE3/5A protects both polarities equally and requires no orientation during placement, whereas the P4SMA160A has a marked cathode band and only clamps reverse-voltage transients. In practice, the P4SMA160CAHE3/5A simplifies layout for differential interfaces (e.g., CAN, RS-485) and eliminates risk of incorrect orientation, while the P4SMA160A is reserved for DC rail protection where polarity is fixed and forward conduction must be avoided.
P4SMA160CAHE3/5A 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
P4SMA160CAHE3/5A FAQ
1.How can I place an order for P4SMA160CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160CAHE3/5A 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 P4SMA160CAHE3/5A reliable?
The price and inventory of P4SMA160CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA160CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160CAHE3/5A?
P4SMA160CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160CAHE3/5A 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 P4SMA160CAHE3/5A?
For technical support, including P4SMA160CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA160CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA160CAHE3/5A 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 P4SMA160CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA160CAHE3/5A?
All P4SMA160CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160CAHE3/5A, 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 P4SMA160CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA160CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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