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Taiwan Semiconductor Corporation P4SMA110AH
- Part No.:
- P4SMA110AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110AH.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,525
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Product details
Overview
P4SMA110AH from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode with a working stand-off voltage of 94.0 V, breakdown voltage range of 105–116 V at 1 mA, and clamping voltage of 152 V at 2.7 A peak pulse current under 10/1000 µs waveform. It is AEC-Q101 qualified and used for surge protection in automotive DC/DC converters.
For engineers reviewing the P4SMA110AH datasheet, P4SMA110AH pinout, P4SMA110AH application, or P4SMA110AH equivalent, key selection criteria include its DO-214AC (SMA) package, unidirectional polarity, 150°C max junction temperature, ISO 7637-2 compliance, and low leakage (<1 µA at 94 V).
Technical Context
The P4SMA110AH operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1.0 ps) and stable clamping during transients. Its electrical behavior follows ANSI/IEEE C62.35 standards, with breakdown tested using 300 µs square-wave pulses.
It is rated for non-repetitive 400 W peak pulse power (10/1000 µs), derates linearly above 25°C ambient per Fig.2, and supports 40 A peak forward surge (8.3 ms half-sine). Polarity is marked by cathode band; moisture sensitivity level is J-STD-020 Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 94.0 V - Maximum continuous reverse voltage before significant leakage; defines system operating margin. |
| VBR min/max | 105–116 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during surges. |
| VC @ IPPM | 152 V @ 2.7 A (10/1000 µs) - Clamped voltage seen by protected circuit; limits stress on downstream ICs. |
| PPPM | 400 W - Peak transient energy handling capacity; validated per REA 10/1000 µs waveform. |
| IR @ VWM | <1 µA - Ultra-low leakage preserves efficiency in high-impedance bias networks. |
| TJ max | +150 °C - Enables use in under-hood automotive environments without thermal derating penalties. |
| Package | DO-214AC (SMA) - Standardized SMT footprint compatible with automated placement and reflow profiles. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with matte tin-plated leads, cathode band marking polarity, 0.060 g weight, UL 94V-0 rated compound, and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward conduction | Connected to lower-potential side (e.g., GND) in unidirectional TVS configuration. |
| Cathode | Current exit point; marked with band | Connected to protected line (e.g., 12 V rail); conducts during reverse overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal/humidity stress. |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) requirements. |
| Fast response time | <1.0 ps - Limits voltage overshoot before clamping engages, protecting sensitive gate drivers and MCUs. |
| Moisture sensitivity Level 1 | No floor life limitation; safe for standard SMT assembly without dry-pack or baking. |
Applications
| Automotive DC/DC Converter | Industrial SMPS Input Stage |
|---|---|
Use Scenario: Protects primary-side controller ICs and MOSFET gates from load-dump transients in 12 V/24 V vehicle systems. IC Role / Device Role: Unidirectional TVS placed between input rail and ground, triggered only during negative-going surges relative to ground. Use Value: Clamps to 152 V within picoseconds, limiting stress on 150 V-rated input capacitors and controllers. | Use Scenario: Shields AC-DC rectified bus (e.g., 375 V) from switching noise and lightning-induced surges in factory automation PSUs. IC Role / Device Role: Standoff-rated TVS absorbing repetitive 400 W pulses without degradation across 10⁵+ cycles. Use Value: Maintains <1 µA leakage at 94 V, avoiding unnecessary standby current draw in energy-sensitive designs. |
| LED Driver Power Input | On-Board Charger (OBC) Auxiliary Supply |
Use Scenario: Safeguards constant-current LED driver ICs against ESD and inductive kickback from relay coils in streetlight controls. IC Role / Device Role: Unidirectional suppression element placed upstream of buck controller, referenced to system ground. Use Value: 150°C TJ rating allows direct mounting near heat-generating LED arrays without thermal derating. | Use Scenario: Guards 12 V auxiliary supply rails in EV on-board chargers exposed to battery line transients during contactor switching. IC Role / Device Role: ISO 7637-2 Pulse 1 compliant protector on low-voltage control domain inputs. Use Value: Cathode-band polarity marking ensures correct orientation during automated placement on high-volume OBC PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | Same VWM (94 V), identical DO-214AA package but 600 W PPPM rating; higher clamping voltage (187 V). | Better suited for higher-energy transients where board space allows larger SMB footprint. | Select SMBJ110A when system-level surge tests exceed IEC 61000-4-5 Level 4 and clamping margin permits. |
| 1.5SMC110A | Same VWM (94 V), DO-214AB (SMC) package; 1500 W PPPM; clamping voltage 187 V; higher thermal mass. | Used in industrial power supplies requiring extended surge endurance and manual soldering compatibility. | Choose 1.5SMC110A for through-hole legacy designs or where 1500 W single-pulse immunity is mandated. |
Compared with P4SMA110AH, SMBJ110A offers higher power handling in a slightly larger footprint, while 1.5SMC110A provides significantly greater surge capacity in a through-hole package-neither is pin-compatible, but all three share identical VWM and VBR ranges for functional substitution in layout-aware designs.
Availability
P4SMA110AH is available at Aetrix Electronics and suitable for automotive electronics, industrial switch-mode power supplies, and LED lighting systems requiring stable component supply with AEC-Q101 assurance and ISO 7637-2 compliance.
Supply support for P4SMA110AH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power devices since 1979.
The P4SMA110AH belongs to TSC's AEC-Q101-qualified P4SMAx(A)H series, engineered specifically for automotive and industrial transient suppression where reliability under thermal cycling, humidity, and repetitive surge stress is critical.
FAQ
What is the maximum clamping voltage of the P4SMA110AH under standard test conditions?
The P4SMA110AH has a maximum clamping voltage (VC) of 152 V when subjected to a 10/1000 µs peak impulse current of 2.7 A. This value is measured per ANSI/IEEE C62.35 and represents the upper voltage limit imposed on protected circuitry during surge events. The P4SMA110AH maintains this clamping performance across its full operating temperature range of –55°C to +150°C.
Is the P4SMA110AH suitable for bidirectional transient suppression?
No, the P4SMA110AH is a unidirectional TVS diode, indicated by the absence of "CAH" suffix and presence of cathode band marking. For bidirectional operation, Taiwan Semiconductor specifies the P4SMA110CAH variant. Using P4SMA110AH in bidirectional configurations risks failure during positive-going transients, as it lacks symmetrical breakdown characteristics. Always verify polarity marking before PCB placement.
Does the P4SMA110AH meet automotive qualification standards?
Yes, the P4SMA110AH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for automotive electrical systems. Its glass-passivated junction, J-STD-020 Level 1 moisture sensitivity, and 150°C maximum junction temperature support under-hood deployment. Full qualification data is documented in Taiwan Semiconductor's AEC-Q101 report for the P4SMAx(A)H family.
What is the leakage current specification for the P4SMA110AH at its working voltage?
The P4SMA110AH exhibits a maximum reverse leakage current (IR) of less than 1 µA when biased at its working stand-off voltage (VWM) of 94.0 V. This ultra-low leakage is confirmed at TA = 25°C and ensures minimal power loss in always-on automotive modules such as body control units and sensor interfaces where quiescent current budgets are tightly constrained.
Can the P4SMA110AH be used in automated SMT assembly processes?
Yes, the P4SMA110AH is optimized for automated placement with its DO-214AC (SMA) package, matte tin-plated leads compliant with J-STD-002 solderability standards, and J-STD-020 Level 1 moisture sensitivity-eliminating bake requirements prior to reflow. Its 0.060 g weight and standardized tape-and-reel packaging (7,500 pcs per reel) support high-throughput pick-and-place operations without tombstoning or alignment issues.
P4SMA110AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 2.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA110AH FAQ
1.How can I place an order for P4SMA110AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110AH 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 P4SMA110AH reliable?
The price and inventory of P4SMA110AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110AH is usually 5 days.
3.What payment methods are accepted for P4SMA110AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110AH?
P4SMA110AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110AH 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 P4SMA110AH?
For technical support, including P4SMA110AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110AH requirements.
6.How does Aetrix verify that P4SMA110AH is sourced from the original manufacturer or authorized distributors?
All P4SMA110AH 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 P4SMA110AH meets industry standards.
7.What is the process for return or replacement of P4SMA110AH?
All P4SMA110AH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110AH, 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 P4SMA110AH part is unused and in its original packaging.
Return procedure for P4SMA110AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110AH Tags
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