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Vishay General Semiconductor - Diodes Division P4SMA10CAHE3_A/I
- Part No.:
- P4SMA10CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10CAHE3_A/I.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA10CAHE3_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 10 V standoff voltage (VWM), 11.1 V minimum breakdown voltage (VBR), 14.5 V maximum clamping voltage (VC) at 27.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P4SMA10CAHE3_A/I datasheet, P4SMA10CAHE3_A/I pinout, P4SMA10CAHE3_A/I application, or P4SMA10CAHE3_A/I equivalent, this AEC-Q101-qualified, RoHS-compliant TVS diode supports automotive-grade ESD and surge protection design where bidirectional clamping, low clamping ratio, and MSL Level 1 reflow compatibility are required.
Technical Context
The P4SMA10CAHE3_A/I operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<10 μA at VWM), while its low incremental surge resistance enables effective energy diversion during fast-rising ESD or lightning-induced surges.
Thermally, it exhibits RθJA = 120 °C/W and RθJL = 30 °C/W, supporting operation up to TJ = 150 °C. The device is rated for repetitive 400 W pulses (duty cycle 0.01%) on 5.0 mm × 5.0 mm copper pads and meets J-STD-020 MSL Level 1 with 260 °C peak reflow profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for protected line. |
| VBR (Breakdown Voltage) | 11.1 V min - Voltage at which avalanche conduction initiates under 1 mA test current; ensures predictable turn-on threshold. |
| VC (Clamping Voltage) | 14.5 V max at IPPM = 27.6 A - Peak voltage seen by downstream circuit during 10/1000 μs transient; determines protection level. |
| PPPM (Peak Pulse Power) | 400 W - Energy-handling capability under standard 10/1000 μs surge; sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω). |
| ID (Reverse Leakage) | 10 μA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | 150 °C - Maximum junction temperature; supports under-hood automotive environments and industrial ambient conditions. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress-test requirements including HTOL, TCT, and ESD HBM/MM; suitable for safety-critical modules. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking on bidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative half-cycle) | Symmetric terminal enabling bidirectional clamping; connects to protected line without polarity constraint. |
| Cathode | Transient current entry point (positive half-cycle) | Electrically identical to Anode in bidirectional configuration; forms symmetrical avalanche path with Anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, USB D+/D−) without polarity concerns. |
| 400 W peak pulse power (10/1000 μs) | Supports robust immunity against IEC 61000-4-5 surge events up to 1 kV open-circuit / 0.5 kV short-circuit test levels. |
| MSL Level 1, 260 °C peak reflow | Allows direct placement into standard lead-free SMT assembly processes without moisture sensitivity handling. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage across temperature and lifetime, critical for automotive reliability. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-defect field performance. |
Applications
| Automotive Sensor Interface Protection | Industrial RS-485 Bus Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control units from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤14.5 V, preventing ADC saturation and latch-up while maintaining <10 μA leakage at 10 V nominal rail. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs against ESD and cable discharge events. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground TVS on differential bus pairs (A/B) in full-duplex configuration. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) and 1 kV surge (IEC 61000-4-5) without degrading signal integrity due to low capacitance and symmetric response. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Shielding USB 2.0 data lines (D+, D−) in set-top boxes and smart TVs from human-body-model ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at USB connector pins, before series impedance. Use Value: Responds in <1 ns to ±8 kV air/±15 kV contact ESD, limiting clamped voltage to 14.5 V and preserving eye diagram compliance. |
Use Scenario: Front-end protection of DSL line drivers and receivers exposed to lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Primary protection device bridging tip/ring lines to ground in xDSL modem interface stage. Use Value: Handles 400 W 10/1000 μs surges while maintaining low leakage (<10 μA) to avoid affecting line bias and echo cancellation performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Same VWM (10 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; not drop-in compatible due to pad layout mismatch. | Select SMBJ10CA only if board layout accommodates wider body and higher thermal mass is beneficial for repetitive surge duty. |
| 1.5KE10CA | Same VWM (10 V), higher PPPM (1500 W), axial-leaded DO-15 package; no SMT compatibility. | Used in through-hole prototyping or legacy designs; incompatible with automated SMT assembly and high-density layouts. | Choose 1.5KE10CA only for manual assembly, repair, or non-SMT applications-unsuitable for production-scale SMT lines. |
Compared with SMBJ10CA and 1.5KE10CA, the P4SMA10CAHE3_A/I delivers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability-making it the preferred choice for space-constrained, automotive-grade, and high-volume SMT deployments.
Availability
P4SMA10CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, consumer USB ports, and telecom DSL line protection requiring stable component supply, AEC-Q101 validation, and RoHS-compliant sourcing.
Supply support for P4SMA10CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for high-reliability transient suppression in automotive, industrial, and communications systems-delivering consistent clamping performance, AEC-Q101 validation, and SMT-ready packaging for demanding real-world surge environments.
FAQ
What is the clamping voltage of P4SMA10CAHE3_A/I at its rated peak pulse current?
The P4SMA10CAHE3_A/I has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current (IPPM) of 27.6 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88367 and defines the upper voltage limit imposed on protected circuitry during transient events, ensuring downstream ICs remain within safe operating voltage ranges.
Is P4SMA10CAHE3_A/I suitable for automotive applications?
Yes, P4SMA10CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliance and automotive qualification. It undergoes stress testing per AEC-Q101 requirements-including high-temperature operating life, temperature cycling, and ESD-and is rated for junction temperatures up to 150 °C, making it appropriate for engine control, body electronics, and ADAS modules.
What does the "CA" suffix indicate in P4SMA10CAHE3_A/I?
The "CA" suffix in P4SMA10CAHE3_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., P4SMA10A), the CA version has no cathode marking and functions identically in either orientation-ideal for AC-coupled lines like RS-485, CAN, or USB differential pairs.
What is the thermal resistance of P4SMA10CAHE3_A/I from junction to ambient?
The typical thermal resistance from junction to ambient (RθJA) for P4SMA10CAHE3_A/I is 120 °C/W, measured on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad layout per Vishay document 88367. This value assumes still air conditions and informs derating calculations for sustained power dissipation-e.g., at TA = 75 °C, the maximum allowable PD drops to ~1.8 W.
Does P4SMA10CAHE3_A/I require special handling for moisture sensitivity?
No, P4SMA10CAHE3_A/I is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be processed using standard lead-free reflow profiles with a peak temperature of up to 260 °C without baking or dry-pack requirements. This simplifies manufacturing logistics and eliminates moisture-related defects such as popcorning during SMT assembly.
P4SMA10CAHE3_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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 27.6A
- 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)
P4SMA10CAHE3_A/I FAQ
1.How can I place an order for P4SMA10CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10CAHE3_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 P4SMA10CAHE3_A/I reliable?
The price and inventory of P4SMA10CAHE3_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 P4SMA10CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA10CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10CAHE3_A/I?
P4SMA10CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10CAHE3_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 P4SMA10CAHE3_A/I?
For technical support, including P4SMA10CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10CAHE3_A/I requirements.
6.How does Aetrix verify that P4SMA10CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA10CAHE3_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 P4SMA10CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA10CAHE3_A/I?
All P4SMA10CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10CAHE3_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 P4SMA10CAHE3_A/I part is unused and in its original packaging.
Return procedure for P4SMA10CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA10CAHE3_A/I Tags
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