Vishay General Semiconductor - Diodes Division P4SMA130CAHM3/I
- Part No.:
- P4SMA130CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA130CAHM3/I.pdf
- Description:
- TVS DIODE 111VWM 179VC DO214AC
- Quantity:
- Payment:

- Shipping:

Inventory:9,544
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Product details
Overview
P4SMA130CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMA (DO-214AC) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 111 V standoff voltage (VWM), 124–137 V breakdown voltage (VBR at 1 mA), 179 V maximum clamping voltage (VC) at 1.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the P4SMA130CAHM3/I datasheet, P4SMA130CAHM3/I pinout, P4SMA130CAHM3/I application, or P4SMA130CAHM3/I equivalent, this device serves as a halogen-free, AEC-Q101-qualified transient protector for automotive sensor signal lines, industrial I/O interfaces, and telecom power rails where bidirectional surge immunity and MSL Level 1 reflow compatibility are required.
Technical Context
The P4SMA130CAHM3/I operates as a symmetrical avalanche diode, clamping voltage transients in both directions without polarity dependence. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response (<1 ns) to ESD and surge events per IEC 61000-4-2/4-5.
Rated for 150 °C maximum junction temperature and compliant with JESD201 Class 2 whisker resistance, it delivers 3.3 W steady-state power dissipation on infinite heatsink at 50 °C ambient. The device is qualified to AEC-Q101 and marked with HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 111 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 124–137 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 179 V at 1.7 A (10/1000 µs) - Peak voltage seen by protected circuit under rated surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Sustained surge energy handling capability; derates to 300 W above 91 V per spec. |
| IPPM (Peak Pulse Current) | 1.7 A - Maximum transient current the device can shunt while maintaining specified VC. |
| TJmax | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.0 mm × 5.0 mm copper pad thermal design; MSL Level 1, 260 °C peak reflow. |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, no polarity marking for bidirectional configuration. Terminals are symmetric - either end functions as anode or cathode depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically in either direction; no cathode band marking; enables placement-independent PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| AEC-Q101 qualification | Validated reliability for automotive applications including engine control modules and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive environmental compliance requirements and supports lead-free reflow assembly (J-STD-020). |
| 400 W peak pulse power (10/1000 µs) | Provides robust immunity against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 combination wave surges. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to divert surge energy to ground. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor interface ICs during 12 V/24 V system transients up to 400 W. |
Use Scenario: Safeguarding PLC digital input modules and RS-485 transceivers against field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff-connected TVS between signal line and ground, activated only during >111 V transients. Use Value: Maintains signal integrity during normal operation while limiting transient voltage to ≤179 V, compatible with 24 V logic thresholds. |
| Telecom Power Rail Protection | Consumer Device USB Port |
|
Use Scenario: Clamping induced surges on 48 V PoE power inputs in network switches and base station equipment exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across DC input rail, absorbing energy before reaching DC/DC converters. Use Value: Withstands repetitive 10/1000 µs surges up to 400 W, ensuring uninterrupted operation per GR-1089-CORE requirements. |
Use Scenario: ESD and surge protection for USB 2.0 data lines and VBUS in smart home hubs and portable audio devices. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed inline with D+/D− and across VBUS/GND to suppress ±8 kV contact ESD. Use Value: Fast <1 ns response and 179 V clamping prevent data corruption and port controller damage during real-world electrostatic discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130CA | Same VWM/VBR/VC specs but in larger SMB (DO-214AA) package; 600 W PPPM; higher thermal mass. | Preferred where board space allows and higher surge margin is needed; not drop-in due to footprint mismatch. | Select when higher peak power (600 W) and improved thermal performance are prioritized over compactness. |
| 1.5KE130CA | Through-hole TO-218 package; 1500 W PPPM; same VWM/VBR range; higher IPPM (12.5 A). | Suitable for high-energy legacy designs or prototyping; incompatible with SMT-only production. | Choose for cost-sensitive, non-automated assembly or where extreme surge robustness outweighs size constraints. |
Compared with SMBJ130CA and 1.5KE130CA, the P4SMA130CAHM3/I offers optimal balance of compact SMA footprint, AEC-Q101 qualification, halogen-free compliance, and 400 W surge capability-making it ideal for space-constrained automotive and industrial SMT designs requiring certified reliability.
Availability
P4SMA130CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom power rail surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P4SMA130CAHM3/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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The P4SMA Series is engineered for high-reliability transient suppression in automotive, industrial, and telecom systems, delivering standardized surge protection with AEC-Q101 qualification and halogen-free construction.
FAQ
What does the 'HM3' suffix indicate in P4SMA130CAHM3/I?
The 'HM3' suffix in P4SMA130CAHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms compliance with automotive reliability standards, JESD201 Class 2 whisker resistance, and suitability for lead-free reflow soldering up to 260 °C peak temperature per J-STD-020. This makes P4SMA130CAHM3/I appropriate for under-hood and safety-critical applications.
Is P4SMA130CAHM3/I unidirectional or bidirectional?
P4SMA130CAHM3/I is a bidirectional Transient Voltage Suppressor, as indicated by the 'CA' suffix. It provides symmetrical clamping in both polarities with identical VWM, VBR, and VC characteristics. There is no cathode marking on the SMA package, and either terminal may serve as anode or cathode depending on transient polarity-enabling flexible PCB layout without orientation constraints.
What is the maximum clamping voltage of P4SMA130CAHM3/I under surge conditions?
The maximum clamping voltage (VC) of P4SMA130CAHM3/I is 179 V, measured at 1.7 A peak pulse current with a 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during a standardized surge event and is critical for ensuring downstream components remain within their absolute maximum ratings.
Can P4SMA130CAHM3/I replace P4SMA130A in a design?
No-P4SMA130CAHM3/I is bidirectional while P4SMA130A is unidirectional. Their electrical behaviors differ fundamentally: P4SMA130A conducts only in reverse bias and requires correct polarity placement, whereas P4SMA130CAHM3/I clamps equally in both directions. Substitution would require circuit review and likely layout changes to accommodate the absence of polarity marking and altered conduction behavior.
What thermal derating applies to P4SMA130CAHM3/I above 25 °C ambient?
P4SMA130CAHM3/I follows standard derating per Figure 2 in its datasheet: peak pulse power decreases linearly above 25 °C ambient, with full 400 W rating only at TA ≤ 25 °C. At 85 °C ambient, the device is rated for approximately 270 W; at 125 °C, it drops to ~170 W. Continuous power dissipation (PD = 3.3 W) also derates linearly to zero at 150 °C junction temperature.
P4SMA130CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 111V
- Voltage - Breakdown (Min):
- 124V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 1.7A
- 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)
P4SMA130CAHM3/I FAQ
1.How can I place an order for P4SMA130CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA130CAHM3/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 P4SMA130CAHM3/I reliable?
The price and inventory of P4SMA130CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA130CAHM3/I is usually 5 days.
3.What payment methods are accepted for P4SMA130CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA130CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA130CAHM3/I?
P4SMA130CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA130CAHM3/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 P4SMA130CAHM3/I?
For technical support, including P4SMA130CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA130CAHM3/I requirements.
6.How does Aetrix verify that P4SMA130CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P4SMA130CAHM3/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 P4SMA130CAHM3/I meets industry standards.
7.What is the process for return or replacement of P4SMA130CAHM3/I?
All P4SMA130CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA130CAHM3/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 P4SMA130CAHM3/I part is unused and in its original packaging.
Return procedure for P4SMA130CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA130CAHM3/I Tags

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