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Vishay General Semiconductor - Diodes Division P4SMA110CAHM3/H
- Part No.:
- P4SMA110CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110CAHM3/H.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,252
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Product details
Overview
P4SMA110CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 110 V breakdown voltage (VBR min/max = 105–116 V), 152 V maximum clamping voltage (VC) at 2.0 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform). It protects signal lines and power rails in automotive sensor units and industrial control interfaces against ESD and inductive switching transients.
For engineers reviewing the P4SMA110CAHM3/H datasheet, P4SMA110CAHM3/H pinout, P4SMA110CAHM3/H application, or P4SMA110CAHM3/H equivalent, this device delivers AEC-Q101 qualification, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive surge conditions - critical for automotive-grade board-level transient protection design.
Technical Context
The P4SMA110CAHM3/H operates as a bidirectional avalanche diode, symmetrically clamping voltage surges above ±105 V in both polarities with no polarity marking on the case. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at 94.0 V stand-off voltage) across -65 °C to +150 °C operating range.
It delivers 400 W peak pulse power (derated to 300 W above 91 V) under standardized 10/1000 µs waveform, with thermal resistance of 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), enabling reliable operation on minimal 5.0 mm × 5.0 mm copper pads without heatsinking in space-constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1.0 mA test current - defines precise voltage threshold where avalanche conduction begins in either direction |
| VWM | 94.0 V - maximum continuous reverse working voltage before significant leakage; sets safe operating margin below clamping |
| VC @ IPPM | 152 V at 2.0 A - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure level |
| PPPM | 400 W (≤91 V), 300 W (>91 V) - peak surge energy handling capability; defines survivability against lightning/inductive spikes |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - enables use in under-hood automotive environments and thermally stressed industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD per JESD22 standards |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), 0.064 g unit weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node for bidirectional conduction path | No polarity marking - symmetrical structure allows identical clamping in positive and negative transients |
| Cathode | Current exit terminal in forward bias; electrically equivalent to Anode in bidirectional operation | Terminal pair forms a non-polarized voltage clamp; PCB layout requires no orientation alignment |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 400 W peak pulse power (10/1000 µs) | Withstands automotive load-dump and industrial relay-switching transients without degradation |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics per stress test requirements - supports PPAP documentation |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without pre-baking or special handling |
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage, and long-term reliability under thermal cycling |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ISO 7637-2 pulse 1/2a/5a transients in engine control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, responding within <1 ns to limit transient overvoltage. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V microcontrollers and precision ADCs by limiting excursion to ≤152 V during 100 V surge events. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to motor drive noise and relay contact bounce. IC Role / Device Role / Timing Role: Standoff protector mounted directly at connector entry point, shunting surge energy before reaching op-amp front-end stages. Use Value: Maintains signal fidelity with <1.0 µA leakage at 94 V, while clamping 1 kV/500 A transients to safe levels compatible with 24 V system rails. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHY interfaces and DSL line drivers from lightning-induced surges on outdoor-facing ports per IEC 61000-4-5 Level 3 (1 kV/0.5 Ω). IC Role / Device Role / Timing Role: Primary TVS element in multi-stage protection scheme, absorbing bulk surge energy upstream of GDT or polymer PTC. Use Value: Delivers 400 W pulse rating with 152 V clamping to ensure downstream components see <200 V peak, meeting GR-1089-CORE immunity requirements. |
Use Scenario: Suppressing inductive kickback from brushed DC motors and solenoids in washing machines, HVAC actuators, and power tools. IC Role / Device Role / Timing Role: Freewheeling clamp across motor terminals or relay coils, diverting stored inductive energy during turn-off. Use Value: Withstands repetitive 40 A surge currents (IFSM) and 300 W pulses, extending relay contact life and preventing MCU reset from supply rail collapse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Higher package thermal mass (SMB/DO-214AA); 100 W higher peak power (600 W), but 10% larger footprint and 20% higher VC (165 V) | Better suited for high-energy industrial mains protection; less optimal for space-constrained automotive PCBs | Select when surge energy exceeds 400 W and board area permits larger SMA footprint |
| 1.5KE110CA | Through-hole (DO-201AE); 1500 W peak power, but 10× slower response and 3× higher VC (187 V) | Designed for primary AC-line protection; incompatible with automated SMT assembly and high-speed signal lines | Choose only for legacy through-hole designs or where cost-per-watt dominates miniaturization needs |
Compared with SMBJ110CA and 1.5KE110CA, the P4SMA110CAHM3/H offers the optimal balance of AEC-Q101 qualification, compact SMA footprint, sub-152 V clamping, and full SMT compatibility - making it the preferred choice for next-generation automotive and industrial edge devices requiring certified, space-efficient transient suppression.
Availability
P4SMA110CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, telecom line cards, and consumer appliance motor drives requiring stable component supply, halogen-free compliance, and AEC-Q101 traceability.
Supply support for P4SMA110CAHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA series is engineered for robust board-level transient suppression in automotive, industrial, and telecom systems - delivering consistent clamping performance, AEC-Q101 validation, and surface-mount scalability across 6.8 V to 540 V standoff ranges.
FAQ
What is the clamping voltage of the P4SMA110CAHM3/H under a 10/1000 µs surge?
The P4SMA110CAHM3/H has a maximum clamping voltage (VC) of 152 V at 2.0 A peak pulse current (IPPM) under the standardized 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. The P4SMA110CAHM3/H maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C) with no derating required up to 25 °C ambient.
Is the P4SMA110CAHM3/H suitable for automotive applications?
Yes, the P4SMA110CAHM3/H is AEC-Q101 qualified (denoted by the HM3 suffix), specifically tested for automotive reliability including temperature cycling, high-temperature reverse bias, and ESD per JESD22 standards. Its halogen-free, RoHS-compliant construction and MSL Level 1 rating make it suitable for engine control units, body electronics, and ADAS sensor modules. The P4SMA110CAHM3/H meets the stringent environmental and lifetime requirements of automotive Tier-1 suppliers.
What does the "CA" suffix indicate in P4SMA110CAHM3/H?
The "CA" suffix in P4SMA110CAHM3/H denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity surges without polarity dependence. Unlike unidirectional variants (e.g., P4SMA110AHM3/H), the CA version has no cathode band marking and functions identically in either orientation. This makes the P4SMA110CAHM3/H ideal for protecting AC-coupled signals, differential buses, and floating reference circuits.
What is the maximum reverse leakage current for the P4SMA110CAHM3/H?
The P4SMA110CAHM3/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated stand-off voltage (VWM) of 94.0 V, measured at 25 °C ambient. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in battery-operated systems. Leakage remains below 5.0 µA even at 125 °C junction temperature, ensuring stable operation across extended thermal profiles.
How does the P4SMA110CAHM3/H differ from the unidirectional P4SMA110AHM3/H?
The P4SMA110CAHM3/H is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas the P4SMA110AHM3/H is unidirectional with a cathode band and conducts only in reverse bias. The P4SMA110CAHM3/H has identical VBR, VWM, and PPPM ratings but differs in application scope: CA suits AC, differential, or floating nodes; A suits DC rails or polarity-defined signal paths. Both share the same SMA package, AEC-Q101 qualification, and thermal specs.
P4SMA110CAHM3/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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for P4SMA110CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110CAHM3/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/H reliable?
The price and inventory of P4SMA110CAHM3/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/H is usually 5 days.
3.What payment methods are accepted for P4SMA110CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110CAHM3/H?
P4SMA110CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110CAHM3/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/H?
For technical support, including P4SMA110CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110CAHM3/H requirements.
6.How does Aetrix verify that P4SMA110CAHM3/H is sourced from the original manufacturer or authorized distributors?
All P4SMA110CAHM3/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/H meets industry standards.
7.What is the process for return or replacement of P4SMA110CAHM3/H?
All P4SMA110CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110CAHM3/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/H part is unused and in its original packaging.
Return procedure for P4SMA110CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110CAHM3/H Tags
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