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Vishay General Semiconductor - Diodes Division P4SMA150CAHE3/61
- Part No.:
- P4SMA150CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150CAHE3/61.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,329
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Product details
Overview
P4SMA150CAHE3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in the P4SMA series, designed for clamping voltage transients on signal or power lines. It features a 150 V standoff voltage (VWM), 165 V minimum breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive applications.
For engineers reviewing the P4SMA150CAHE3/61 datasheet, P4SMA150CAHE3/61 pinout, P4SMA150CAHE3/61 application, or P4SMA150CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping voltage (207 V at IPPM), RoHS-compliant AEC-Q101 qualification, and SMA (DO-214AC) package compatibility with automated SMT assembly.
Technical Context
The P4SMA150CAHE3/61 operates as a bidirectional avalanche diode, providing symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction enables fast response time (<1 ns) and stable breakdown characteristics across temperature.
It delivers 400 W peak pulse power under 10/1000 μs waveform at TA = 25 °C (derated above 25 °C per Fig. 2), with maximum clamping voltage of 207 V at 1.4 A peak pulse current and thermal resistance RθJA of 120 °C/W on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 143–158 V at IT = 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 207 V at IPPM = 1.4 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream IC survival. |
| PPPM (Peak Pulse Power) | 400 W - Sustains 10/1000 μs transient energy without failure; derates to 300 W above 91 V per spec. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Minimal standby current leakage; preserves low-power system integrity. |
| TJ max | 150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
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. Bidirectional construction has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical with cathode in bidirectional mode | Enables clamping during positive or negative transients without external polarity assignment. |
| Cathode | Current exit terminal in forward bias; symmetrical with anode in bidirectional mode | Provides identical clamping behavior in either direction - no band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Handles high-energy surges common in automotive load-dump and inductive switching events. |
| AEC-Q101 qualified (HE3 suffix) | Meets automotive stress-test requirements for temperature cycling, humidity, and lifetime reliability. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs - e.g., 207 V clamp vs. 143 V min breakdown. |
| MSL Level 1 (260 °C reflow) | Supports lead-free reflow soldering without moisture-related popcorning or delamination. |
| Glass-passivated junction | Ensures stable electrical parameters and long-term reliability under thermal and humidity stress. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Lines |
|---|---|
Use Scenario: Protecting ABS, airbag, or engine control sensors from ISO 7637-2 pulse 1/2a/5a transients in 12 V systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor supply and ground to clamp induced spikes before reaching analog front-end or MCU inputs. Use Value: Prevents latch-up or permanent damage to 150 V-rated sensor interface ICs during load dump events up to 400 W. |
Use Scenario: Safeguarding CANH/CANL differential pair against ESD and fast transients in factory automation controllers. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor mounted directly at connector entry point to limit line voltage to ≤207 V. Use Value: Maintains CAN signal integrity while meeting IEC 61000-4-2 (±8 kV contact) and IEC 61000-4-4 (±2 kV) immunity requirements. |
| Telecom Power Input Stage | Consumer USB-C Port Protection |
Use Scenario: Shielding 48 V PoE-powered equipment from lightning-induced surges on DC input lines. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converter, absorbing repetitive 10/1000 μs transients. Use Value: Enables robust 48 V input stage design with 150 V VWM margin and 207 V VC limiting downstream FET gate stress. |
Use Scenario: Secondary-level protection for USB-C CC and VBUS lines against hot-plug and ESD in portable devices. IC Role / Device Role / Timing Role: Bidirectional TVS placed after primary fuse and before USB controller to handle ±15 kV ESD per IEC 61000-4-2. Use Value: Provides sub-210 V clamping with <1 μA leakage at 150 V - preserving battery life and enabling compact layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | Same VWM (150 V), higher PPPM (600 W), larger SMB (DO-214AA) package (4.58 mm × 3.94 mm vs. SMA's 4.50 mm × 2.79 mm) | Preferred where higher surge margin is needed and PCB space allows larger footprint | Select SMBJ150CA when 600 W surge handling is required and board area permits SMB package. |
| 1.5SMC150CA | Same VWM (150 V), same PPPM (400 W), but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm); higher thermal mass | Better suited for high-temperature industrial environments requiring lower RθJA (60 °C/W vs. 120 °C/W) | Choose 1.5SMC150CA when thermal performance dominates over size constraints in high-power ambient conditions. |
Compared with SMBJ150CA and 1.5SMC150CA, the P4SMA150CAHE3/61 offers the smallest footprint in the 150 V bidirectional TVS class while maintaining AEC-Q101 qualification - making it optimal for space-constrained automotive modules and portable electronics where MSL Level 1 reflow compatibility is essential.
Availability
P4SMA150CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, telecom power inputs, and consumer USB-C port protection requiring stable component supply and AEC-Q101 compliance.
Supply support for P4SMA150CAHE3/61 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 protection devices with emphasis on reliability and application-specific performance.
The P4SMA series targets cost-sensitive, high-volume applications requiring robust transient suppression in automotive, industrial, and communications systems - optimized for automated SMT assembly and AEC-Q101 compliance.
FAQ
What does the "CA" suffix mean in P4SMA150CAHE3/61?
The "CA" suffix in P4SMA150CAHE3/61 indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P4SMA150A), it has no polarity marking and clamps equally in either direction, making it ideal for AC-coupled or differential signal lines such as CAN or RS-485.
Is P4SMA150CAHE3/61 suitable for automotive applications?
Yes, P4SMA150CAHE3/61 is AEC-Q101 qualified (denoted by the HE3 suffix), having passed rigorous automotive stress tests including temperature cycling, high-temperature reverse bias, and ESD. It is rated for operation from –65 °C to +150 °C and meets MSL Level 1 for lead-free reflow, making it appropriate for under-hood and body-control module deployments.
What is the clamping voltage of P4SMA150CAHE3/61 at its rated peak pulse current?
The clamping voltage (VC) of P4SMA150CAHE3/61 is 207 V at its specified peak pulse current (IPPM) of 1.4 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in the datasheet and represents the maximum voltage imposed on the protected circuit during a worst-case transient event.
How does the SMA (DO-214AC) package of P4SMA150CAHE3/61 compare to SMB or SMC packages?
The SMA (DO-214AC) package of P4SMA150CAHE3/61 measures 4.50 mm × 2.79 mm - significantly smaller than SMB (DO-214AA: 4.58 mm × 3.94 mm) and much smaller than SMC (DO-214AB: 7.11 mm × 6.22 mm). While its RθJA is higher (120 °C/W), the compact size enables dense routing in space-limited designs like ADAS camera modules or portable USB-C accessories.
Does P4SMA150CAHE3/61 require a heatsink for standard operation?
No, P4SMA150CAHE3/61 is designed for operation without an external heatsink when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Its 3.3 W steady-state power dissipation (PD) and 120 °C/W junction-to-ambient thermal resistance are validated under those conditions; additional copper pour may be used to improve thermal performance in high-ambient environments.
P4SMA150CAHE3/61 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- Power - Peak Pulse:
- 300W
- 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)
P4SMA150CAHE3/61 FAQ
1.How can I place an order for P4SMA150CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150CAHE3/61 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 P4SMA150CAHE3/61 reliable?
The price and inventory of P4SMA150CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150CAHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA150CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150CAHE3/61?
P4SMA150CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150CAHE3/61 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 P4SMA150CAHE3/61?
For technical support, including P4SMA150CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150CAHE3/61 requirements.
6.How does Aetrix verify that P4SMA150CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA150CAHE3/61 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 P4SMA150CAHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA150CAHE3/61?
All P4SMA150CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150CAHE3/61, 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 P4SMA150CAHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA150CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA150CAHE3/61 Tags
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