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Vishay General Semiconductor - Diodes Division P4SMA15CA-M3/61
- Part No.:
- P4SMA15CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA15CA-M3/61.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA15CA-M3/61 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 15 V standoff voltage (VWM), 17.1 V minimum breakdown voltage (VBR), 21.2 V maximum clamping voltage at 18.9 A peak pulse current, and 400 W peak pulse power capability with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA15CA-M3/61 datasheet, P4SMA15CA-M3/61 pinout, P4SMA15CA-M3/61 application, or P4SMA15CA-M3/61 equivalent, key selection criteria include bidirectional clamping performance, 15 V working voltage compatibility, SMA package thermal resistance (RθJA = 120 °C/W), and halogen-free RoHS compliance per M3 suffix.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 10/1000 µs surge rating supports repetitive ESD and inductive switching protection in DC power rails and analog interfaces.
The device meets AEC-Q101 qualification when ordered with HE3/HM3 suffixes, though P4SMA15CA-M3/61 itself is commercial-grade halogen-free. Its 150 °C maximum junction temperature and MSL Level 1 moisture sensitivity support reflow soldering at 260 °C peak, and its 3.3 W steady-state power dissipation enables continuous operation under moderate bias conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 15 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin for 12 V nominal systems. |
| VBR (Breakdown Voltage) | 17.1–18.9 V at 1 mA - Voltage at which device transitions into avalanche conduction; ensures reliable triggering above normal operating range. |
| VC (Clamping Voltage) | 21.2 V at 18.9 A (10/1000 µs) - Peak voltage seen by protected circuit during surge; limits stress on downstream 24 V-tolerant ICs. |
| PPPM (Peak Pulse Power) | 400 W - Sustains transient energy without failure; sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 24 V lines. |
| ID (Reverse Leakage) | ≤1.0 µA at 15 V - Negligible standby current draw; avoids loading low-power sensor outputs or battery-backed circuits. |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient; requires ≥5 mm × 5 mm copper pads for full 400 W rating. |
| Package | SMA (DO-214AC) - Surface-mount outline with 2.54 mm lead pitch; compatible with standard automated placement and reflow profiles. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1, 260 °C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative-going surges; symmetrical with cathode in bidirectional configuration. |
| Cathode | Transient current entry (positive polarity) | Conducts during positive-going surges; no polarity marking on bidirectional devices like P4SMA15CA-M3/61. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both directions - eliminates need for polarity-aware layout in AC-coupled or floating signal paths. |
| 400 W peak pulse power | Handles 10/1000 µs transients up to 18.9 A - protects against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 surges in 12–24 V systems. |
| Glass passivated junction | Stable, low-drift avalanche characteristics over temperature and lifetime - ensures consistent clamping voltage across -65 °C to +150 °C. |
| Halogen-free & RoHS-compliant (M3) | Meets JESD201 Class 2 whisker resistance and environmental compliance requirements for industrial and consumer end equipment. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients - critical for protecting high-speed interfaces like CAN, RS-485, and sensor buses. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of engine coolant temperature sensors exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamps both positive and negative transients on 0–5 V ratiometric sensor outputs. Use Value: Limits voltage excursion to ≤21.2 V during 100 V/50 ms load dump events, preserving ADC input integrity and avoiding latch-up. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from inductive kickback of solenoid drivers. IC Role / Device Role / Timing Role: Fast-response TVS shunts surge energy away from optocoupler inputs and microcontroller GPIOs. Use Value: Clamps 400 V transients to 21.2 V within <1 ns, preventing false triggering and enabling robust 10 kHz switching cycle reliability. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceiver pins in building automation gateways connected to long, unshielded field wiring. IC Role / Device Role / Timing Role: Bidirectional suppression of ESD (±15 kV contact) and lightning-induced surges on differential bus lines. Use Value: Maintains signal integrity below 21.2 V clamping threshold while adding <1 pF junction capacitance - no data rate degradation at 10 Mbps. |
Use Scenario: Protecting MCU reset and communication lines in washing machine control boards from motor commutation noise. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS prevents battery drain in standby mode while clamping 300 V/2 Ω surges. Use Value: Enables >10-year field life with zero false resets due to transient-induced brownouts on 3.3 V supply monitoring circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Same VWM/VBR/VC specs but SMB package (DO-214AA); 600 W PPPM rating; RθJA = 80 °C/W. | Higher power handling and better thermal performance; requires larger PCB footprint (4.58 mm × 3.94 mm vs. SMA's 4.50 mm × 2.79 mm). | Select SMBJ15CA when system-level surge testing exceeds 400 W or board layout allows larger package for improved thermal margin. |
| 1.5KE15CA | Through-hole DO-201 package; same 15 V VWM; 1500 W PPPM; higher leakage (5 µA max at VWM); RθJA = 10 °C/W with heatsink. | Designed for high-energy, infrequent surges (e.g., AC mains input); not suitable for dense SMT layouts or automated assembly. | Choose 1.5KE15CA only for legacy through-hole designs or primary-side AC protection where manual assembly and heatsinking are feasible. |
Compared with SMBJ15CA and 1.5KE15CA, P4SMA15CA-M3/61 offers optimal balance of compact SMA footprint, 400 W surge capability, and commercial-grade halogen-free compliance - making it ideal for space-constrained, high-volume SMT applications requiring repeatable 10/1000 µs transient immunity without thermal derating penalties.
Availability
P4SMA15CA-M3/61 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom interface cards, and consumer appliance control boards requiring stable component supply and halogen-free compliance.
Supply support for P4SMA15CA-M3/61 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, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and consumer electronics - delivering standardized TVS performance in compact surface-mount packages with scalable qualification options.
FAQ
What is the clamping voltage of P4SMA15CA-M3/61 at its rated peak pulse current?
The P4SMA15CA-M3/61 has a maximum clamping voltage (VC) of 21.2 V at 18.9 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA15CA-M3/61 maintains this clamping performance bidirectionally, ensuring consistent protection regardless of transient polarity.
Is P4SMA15CA-M3/61 suitable for automotive applications requiring AEC-Q101 qualification?
P4SMA15CA-M3/61 is a commercial-grade halogen-free part and is not AEC-Q101 qualified. For automotive use, Vishay offers the P4SMA15CAHM3_A variant (with HM3 suffix and revision code A), which carries full AEC-Q101 qualification. The P4SMA15CA-M3/61 remains appropriate for non-safety-critical industrial or consumer applications where AEC-Q101 is not mandated.
How does the M3 suffix affect the material composition of P4SMA15CA-M3/61?
The M3 suffix on P4SMA15CA-M3/61 indicates halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance requirements. Unlike E3-suffix parts, M3 devices replace brominated flame retardants with alternative chemistries while maintaining UL 94 V-0 flammability rating and matte tin plating compatible with J-STD-002 solderability standards. The P4SMA15CA-M3/61 thus supports environmentally regulated end markets without compromising electrical or mechanical performance.
What is the thermal resistance of P4SMA15CA-M3/61, and how does it impact PCB layout?
P4SMA15CA-M3/61 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 achieve full 400 W peak pulse power rating, the PCB must provide adequate copper area and thermal vias; reducing pad size increases junction temperature and may require derating. The P4SMA15CA-M3/61 thermal performance is optimized for standard SMT reflow profiles and does not require external heatsinking in most applications.
Can P4SMA15CA-M3/61 be used in place of unidirectional TVS diodes like P4SMA15A-M3/61?
No - P4SMA15CA-M3/61 is strictly bidirectional and lacks polarity marking, while P4SMA15A-M3/61 is unidirectional with cathode band identification. Substituting them risks incorrect clamping behavior in DC-biased circuits. The P4SMA15CA-M3/61 is intended for AC-coupled, floating, or dual-polarity signal paths; use only where symmetrical transient suppression is required and system grounding permits bidirectional conduction.
P4SMA15CA-M3/61 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 18.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA15CA-M3/61 FAQ
1.How can I place an order for P4SMA15CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA15CA-M3/61 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 P4SMA15CA-M3/61 reliable?
The price and inventory of P4SMA15CA-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA15CA-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA15CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA15CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA15CA-M3/61?
P4SMA15CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA15CA-M3/61 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 P4SMA15CA-M3/61?
For technical support, including P4SMA15CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA15CA-M3/61 requirements.
6.How does Aetrix verify that P4SMA15CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA15CA-M3/61 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 P4SMA15CA-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA15CA-M3/61?
All P4SMA15CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA15CA-M3/61, 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 P4SMA15CA-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA15CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA15CA-M3/61 Tags
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