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Vishay General Semiconductor - Diodes Division P4SMA110CAHM3_A/H
- Part No.:
- P4SMA110CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110CAHM3_A/H.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,603
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Product details
Overview
P4SMA110CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMA (DO-214AC) package, designed for clamping voltage transients on signal or power lines. It features 110 V standoff voltage (VWM), 152 V maximum clamping voltage (VC) at 2.0 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and telecom line drivers against ESD and inductive switching surges.
For engineers reviewing the P4SMA110CAHM3_A/H datasheet, P4SMA110CAHM3_A/H pinout, P4SMA110CAHM3_A/H application, or P4SMA110CAHM3_A/H equivalent, this page delivers verified electrical specs, automotive-grade AEC-Q101 qualification status, thermal resistance data, and real-world protection use cases - all aligned to Vishay's official P4SMA Series documentation (Rev. 09-Jan-2024, Doc. #88367).
Technical Context
The P4SMA110CAHM3_A/H operates bidirectionally with symmetrical breakdown behavior: minimum breakdown voltage (VBR) is 105 V and maximum is 116 V at 1.0 mA test current. Its clamping action limits transient voltages to ≤152 V under 2.0 A 10/1000 µs surge, enabling robust protection of downstream ICs without forward conduction during normal operation.
Thermally, it exhibits RθJA = 120 °C/W and RθJL = 30 °C/W, supporting reliable operation up to TJ = +150 °C. The device is halogen-free, RoHS-compliant, and qualified to AEC-Q101 - confirming suitability for automotive electronics where reliability under thermal cycling and humidity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 110 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin for protected circuitry. |
| VBR (Breakdown Voltage) | 105–116 V at 1.0 mA - precise voltage threshold at which avalanche conduction begins; ensures predictable transient response. |
| VC (Clamping Voltage) | 152 V at IPPM = 2.0 A - peak voltage seen by protected load during worst-case surge; directly determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - energy-handling capability for short-duration transients; derated to 300 W above 91 V per spec. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - negligible standby current; avoids loading sensitive analog or low-power signal paths. |
| TJ max | +150 °C - maximum junction temperature; enables deployment in under-hood automotive or industrial 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 case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Conducts surge current in either direction during overvoltage events; symmetric terminal with no cathode band. |
| Cathode | Transient current exit (bidirectional) | Paired with Anode to form bidirectional clamping path; identical electrical role - no polarity distinction in CA devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN bus, audio inputs) without polarity concerns. |
| 400 W peak pulse power | Handles high-energy transients from inductive load switching (e.g., solenoid drivers, relay coils) while maintaining low clamping voltage. |
| AEC-Q101 qualification | Validates long-term reliability in automotive ECUs, ADAS sensors, and infotainment systems subject to harsh thermal and vibration profiles. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow processes without moisture-related popcorn failure; eliminates pre-bake requirement. |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates (e.g., EU RoHS, JEITA EG02) for sustainable electronics manufacturing. |
Applications
| Automotive Sensor Interface Protection | Industrial RS-485 Communication Line |
|---|---|
Use Scenario: Protecting analog output pins of pressure/temperature sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed across sensor output and ground to clamp fast-rising transients before they reach ADC input or signal conditioning op-amps. Use Value: Limits voltage excursion to ≤152 V during 100 V/500 ms load dump events, preserving sensor accuracy and preventing microcontroller reset. |
Use Scenario: Shielding RS-485 transceiver I/O pins (A/B lines) in factory automation PLCs from ESD and cable-induced surges. IC Role / Device Role / Timing Role: Differential-line TVS connected between A and B terminals to suppress common-mode and differential-mode transients without distorting signal integrity. Use Value: Maintains <1 ns response time and <15 pF junction capacitance (typ.) to avoid signal edge degradation at 10 Mbps data rates. |
| Telecom DSL Line Protection | Consumer Appliance Motor Drive Feedback |
Use Scenario: Safeguarding ADSL/VDSL line driver/receiver circuits in residential gateways against lightning-induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector interface to shunt >1 kV transients before reaching transformer-coupled PHY layer. Use Value: Withstands repeated 10/1000 µs surges up to 400 W while holding clamping voltage below 152 V - meeting ITU-T K.21 basic protection requirements. |
Use Scenario: Protecting hall-effect rotor position feedback signals in BLDC motor controllers inside HVAC systems and washing machines. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) bidirectional suppressor placed across hall sensor supply and output to prevent latch-up during motor commutation spikes. Use Value: Ensures <1.0 µA reverse leakage at 110 V standoff preserves millivolt-level sensor signal fidelity and avoids false zero-crossing detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Same VWM (110 V) and VC (152 V), but SMB package (DO-214AA); 600 W PPPM rating. | Higher power handling suits higher-energy surge environments (e.g., industrial mains-connected equipment), but larger footprint. | Select when PCB layout allows larger pad area and system-level surge immunity requires >400 W dissipation. |
| 1.5KE110CA | Through-hole DO-201 package; same VWM/VC specs but 1500 W PPPM and higher IFSM (100 A). | Designed for legacy board designs or high-reliability power supply input stages where manual assembly or mechanical robustness is prioritized. | Choose for through-hole prototyping, repair scenarios, or applications requiring proven field history in high-stress power rails. |
Compared with SMBJ110CA and 1.5KE110CA, the P4SMA110CAHM3_A/H offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and sufficient 400 W surge capacity for space-constrained automotive and telecom signal-line protection - without over-specifying package size or cost.
Availability
P4SMA110CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, telecom DSL line protection, and consumer appliance motor feedback systems requiring stable component supply and guaranteed long-term manufacturability.
Supply support for P4SMA110CAHM3_A/H 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and communications markets - delivering standardized TVS performance in compact, AEC-Q101-qualified surface-mount packages.
FAQ
What does the "CA" suffix mean in P4SMA110CAHM3_A/H?
The "CA" suffix in P4SMA110CAHM3_A/H indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with no designated anode or cathode. This makes it ideal for protecting AC-coupled lines like RS-485, CAN, or audio signals where voltage polarity reverses. Unlike unidirectional "A" variants, P4SMA110CAHM3_A/H has no polarity marking band on the SMA package.
Is P4SMA110CAHM3_A/H qualified for automotive use?
Yes, P4SMA110CAHM3_A/H is AEC-Q101 qualified - confirmed in Vishay's official documentation (Doc. #88367, Rev. 09-Jan-2024). The "HM3" suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 validation, covering tests such as temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22. This qualifies P4SMA110CAHM3_A/H for under-hood and cabin ECU applications.
What is the maximum clamping voltage of P4SMA110CAHM3_A/H under surge conditions?
The maximum clamping voltage (VC) of P4SMA110CAHM3_A/H is 152 V, measured at a peak pulse current (IPPM) of 2.0 A using the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the highest voltage that will appear across protected circuitry during a transient event - critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the thermal resistance of P4SMA110CAHM3_A/H affect its power handling?
P4SMA110CAHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W. When dissipating its rated 400 W peak pulse power, even brief surges cause rapid junction temperature rise - so effective PCB copper pad design (e.g., 0.2" × 0.2" pads per terminal) is essential to maintain safe operation. For repetitive surges, derating per Fig. 2 in the datasheet is required to avoid exceeding TJ(max) = +150 °C.
Can P4SMA110CAHM3_A/H replace older P4SMA110A variants in existing designs?
No - P4SMA110CAHM3_A/H is bidirectional, whereas P4SMA110A is unidirectional. Swapping them without circuit review risks improper clamping during negative transients. Additionally, P4SMA110CAHM3_A/H carries AEC-Q101 qualification and halogen-free materials not present in base P4SMA110A. If upgrading, verify layout compatibility (same SMA footprint), confirm bidirectional operation aligns with signal topology, and validate clamping behavior in system-level surge testing.
P4SMA110CAHM3_A/H 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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 2A
- 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)
P4SMA110CAHM3_A/H FAQ
1.How can I place an order for P4SMA110CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110CAHM3_A/H 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 P4SMA110CAHM3_A/H reliable?
The price and inventory of P4SMA110CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA110CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110CAHM3_A/H?
P4SMA110CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110CAHM3_A/H 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 P4SMA110CAHM3_A/H?
For technical support, including P4SMA110CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110CAHM3_A/H requirements.
6.How does Aetrix verify that P4SMA110CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA110CAHM3_A/H 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 P4SMA110CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA110CAHM3_A/H?
All P4SMA110CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110CAHM3_A/H, 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 P4SMA110CAHM3_A/H part is unused and in its original packaging.
Return procedure for P4SMA110CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110CAHM3_A/H Tags
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