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Vishay General Semiconductor - Diodes Division P4SMA100CAHE3/5A
- Part No.:
- P4SMA100CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100CAHE3/5A.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,767
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Product details
Overview
P4SMA100CAHE3/5A 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 100 V standoff voltage (VWM), 110 V minimum breakdown voltage (VBR), 137 V maximum clamping voltage (VC) at 2.2 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and RoHS-compliant, used in automotive sensor protection and industrial I/O line surge suppression.
For engineers reviewing the P4SMA100CAHE3/5A datasheet, P4SMA100CAHE3/5A pinout, P4SMA100CAHE3/5A application, or P4SMA100CAHE3/5A equivalent, key selection criteria include bidirectional clamping capability, 137 V VC under 2.2 A transient, AEC-Q101 qualification status, SMA (DO-214AC) package thermal resistance (RθJA = 120 °C/W), and compliance with UL 94 V-0 flammability rating.
Technical Context
The P4SMA100CAHE3/5A operates as a bidirectional avalanche diode, providing symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), enabling effective suppression of ESD and inductive switching transients.
It delivers 400 W peak pulse power at TA = 25 °C (derated above 25 °C per Fig. 2), with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W. The device is rated for TJ = -65 to +150 °C and meets J-STD-020 MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 110–122 V at IT = 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 137 V at IPPM = 2.2 A - Maximum voltage seen by protected circuit during 10/1000 µs surge; critical for IC survivability. |
| PPPM (Peak Pulse Power) | 400 W - Sustains 10/1000 µs surges without failure when mounted on 5.0 mm × 5.0 mm copper pads. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Negligible standby current; avoids loading sensitive signal lines. |
| TJ max. | +150 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures. |
| Package | SMA (DO-214AC) - Surface-mount footprint compatible with automated placement; UL 94 V-0 molding compound. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Bidirectional construction means no cathode/anode marking; terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 2; either terminal serves as input/output for transient energy dissipation. |
| Terminal 2 | Anode / Cathode (bidirectional) | Provides symmetrical clamping path; no polarity dependency simplifies PCB layout and routing. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions. |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV surge) on 2 Ω source impedance when properly mounted. |
| Low clamping ratio (VC/VBR ≈ 1.25) | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; supports high-yield SMT assembly. |
| UL 94 V-0 flammability rating | Self-extinguishing encapsulant prevents fire propagation in safety-critical systems. |
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 voltage clamp placed across differential signal pairs or supply rails to limit transient excursions. Use Value: Maintains signal integrity during 100 V/10 ms load dump events while surviving repeated exposure due to AEC-Q101 qualification. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-induced surges on 24 V DC control lines. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing fast-rising transients (e.g., relay coil flyback) before they reach optocoupler inputs. Use Value: Limits clamped voltage to 137 V, ensuring input stage remains within absolute maximum ratings of 30 V-rated optoisolators. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHY interface pins and RS-485 transceivers against lightning-induced surges in outdoor network equipment. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor placed at connector entry point to shunt common-mode transients. Use Value: 1.0 µA leakage at 100 V VWM avoids degrading signal-to-noise ratio on high-impedance data lines. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-motor terminals to clamp inductive kickback and prevent MCU reset or gate driver latch-up. Use Value: 400 W peak power rating handles repetitive 100–200 A motor stall surges without degradation over product lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Higher 600 W PPPM; larger SMB (DO-214AA) package; RθJA = 85 °C/W | Better thermal performance but requires larger PCB area; not AEC-Q101 qualified in standard grade | Select when higher surge margin is needed and board space allows SMB footprint. |
| 1.5KE100CA | Through-hole TO-218 package; 1500 W PPPM; higher VC (165 V); no AEC-Q101 option | Designed for legacy through-hole assembly; unsuitable for automated SMT production | Choose only for repair or retrofit where SMT is unavailable and higher clamping voltage is acceptable. |
Compared with SMBJ100CA and 1.5KE100CA, the P4SMA100CAHE3/5A offers optimal balance of AEC-Q101 qualification, compact SMA footprint, and verified 137 V clamping-making it preferred for new automotive and industrial SMT designs where reliability and space constraints coexist.
Availability
P4SMA100CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for P4SMA100CAHE3/5A 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, TVS devices, and power MOSFETs with emphasis on reliability and automotive-grade validation.
The P4SMA series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification and precise clamping performance are mandatory.
FAQ
What does the "CA" suffix mean in P4SMA100CAHE3/5A?
The "CA" suffix denotes a bidirectional configuration: the device provides symmetrical transient suppression in both polarities, with no cathode marking required. This differs from unidirectional variants (e.g., P4SMA100A), which have a marked cathode band and conduct only in reverse bias. The P4SMA100CAHE3/5A is functionally identical in both directions, making it ideal for AC-coupled or differential signal lines where polarity reversal may occur.
Is P4SMA100CAHE3/5A AEC-Q101 qualified?
Yes, P4SMA100CAHE3/5A is AEC-Q101 qualified. The "HE3" suffix explicitly indicates RoHS-compliant and AEC-Q101 qualified construction, validated per the full stress test schedule including HTGB, HTRB, TCT, and ESD. This qualification confirms suitability for automotive powertrain, chassis, and body electronics where reliability under thermal and mechanical stress is critical.
What is the maximum clamping voltage of P4SMA100CAHE3/5A and at what current is it specified?
The maximum clamping voltage (VC) of P4SMA100CAHE3/5A is 137 V, measured at a peak pulse current (IPPM) of 2.2 A using the standardized 10/1000 µs waveform. This value is guaranteed across the operating temperature range and reflects worst-case voltage seen by protected circuitry during surge events, directly informing system-level overvoltage margin design.
Can P4SMA100CAHE3/5A be used in place of a unidirectional TVS like P4SMA100A?
No-P4SMA100CAHE3/5A is bidirectional and cannot replace unidirectional P4SMA100A in DC-biased applications where forward conduction must be blocked. In circuits with defined polarity (e.g., 12 V supply rail protection), using P4SMA100CAHE3/5A would allow unintended forward current flow. Always match device polarity to circuit topology: use unidirectional types for DC rails and bidirectional types for AC, differential, or polarity-agnostic signal paths.
What is the thermal resistance of P4SMA100CAHE3/5A and how does it affect layout?
P4SMA100CAHE3/5A has 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. To maintain safe operation at full 400 W pulse power, PCB layout must provide adequate copper area and avoid excessive trace length or narrow connections. For sustained high-duty-cycle surges, consider adding thermal vias or local ground plane extensions to reduce effective RθJA.
P4SMA100CAHE3/5A 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- 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)
P4SMA100CAHE3/5A FAQ
1.How can I place an order for P4SMA100CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100CAHE3/5A 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 P4SMA100CAHE3/5A reliable?
The price and inventory of P4SMA100CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA100CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100CAHE3/5A?
P4SMA100CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100CAHE3/5A 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 P4SMA100CAHE3/5A?
For technical support, including P4SMA100CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA100CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA100CAHE3/5A 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 P4SMA100CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA100CAHE3/5A?
All P4SMA100CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100CAHE3/5A, 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 P4SMA100CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA100CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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