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Taiwan Semiconductor Corporation P4SMA160AH
- Part No.:
- P4SMA160AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160AH.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,451
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Product details
Overview
P4SMA160AH from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode with a working stand-off voltage of 136 V, breakdown voltage range of 152–168 V, and clamping voltage of 219 V at 1.9 A (10/1000 µs waveform). It features glass passivated junction, AEC-Q101 qualification, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics protection.
For engineers reviewing the P4SMA160AH datasheet, P4SMA160AH pinout, P4SMA160AH application, or P4SMA160AH equivalent, this device is selected for robust overvoltage protection in DC/DC converters, SMPS inputs, and automotive power rails where fast response (<1 ps), low leakage (<1 µA), and stable clamping under repetitive surge conditions are critical.
Technical Context
The P4SMA160AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified breakdown range (152–168 V @ 1 mA). Its glass-passivated junction ensures stable leakage performance and long-term reliability under thermal cycling.
Designed for automotive-grade environments, it supports operation from −55 °C to +150 °C junction temperature, complies with JESD201 Class 2 whisker resistance, and achieves moisture sensitivity level 1 per J-STD-020 - enabling lead-free reflow without popcorn risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 136 V - Maximum continuous reverse operating voltage before leakage rises significantly; sets safe DC bias margin for 120–140 V nominal systems. |
| VBR min/max | 152–168 V @ 1 mA - Confirmed breakdown threshold range; ensures consistent turn-on across production lots and temperature. |
| VC@IPPM | 219 V @ 1.9 A (10/1000 µs) - Clamping voltage during standardized surge; limits downstream IC stress to ≤219 V under 400 W peak pulse. |
| IR@VWM | <1 µA - Ultra-low reverse leakage at rated stand-off; preserves efficiency in high-impedance sensing or battery-backed circuits. |
| PPPM | 400 W - Peak pulse power rating per 10/1000 µs waveform; defines maximum transient energy absorption capability. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive modules and enclosed industrial power supplies. |
| Package | DO-214AC (SMA) - Standardized surface-mount outline with cathode band marking; compatible with automated pick-and-place and reflow. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.060 g, UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to system ground or low-side reference; carries full surge current during clamping event. |
| Cathode | Reverse-biased terminal / Protection node input | Connected to protected line (e.g., 136 V rail); avalanche conduction begins here when VREV > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including temperature cycling, humidity bias, and mechanical shock per stress test requirements. |
| Glass passivated junction | Eliminates surface contamination effects, stabilizes VBR drift over time and humidity exposure. |
| Fast response time | Typically <1.0 ps - Enables suppression of ESD and fast transients before sensitive downstream circuitry reacts. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line capacitance discharge) waveforms. |
| Moisture sensitivity level 1 | No floor life limitation; can be stored indefinitely and processed directly in standard lead-free reflow without baking. |
Applications
| Automotive Power Rail Protection | Industrial DC/DC Converter Input |
|---|---|
Use Scenario: Protecting 12 V/24 V/48 V battery-fed ECUs against load dump and alternator transients in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and primary regulator input. Use Value: Limits transient voltage to ≤219 V during ISO 7637-2 Pulse 5a (load dump), preventing damage to upstream PMICs and microcontrollers. | Use Scenario: Safeguarding isolated DC/DC converter primary side against surges induced by relay switching or inductive coupling in factory automation controllers. IC Role / Device Role / Timing Role: Standoff-rated TVS on input bus, coordinated with bulk capacitor and fuse for staged protection. Use Value: Absorbs up to 400 W of transient energy without degradation, maintaining regulation integrity during 10/1000 µs line disturbances. |
| Switching Mode Power Supply (SMPS) Input | LED Driver Power Stage Protection |
Use Scenario: Input-stage overvoltage protection in AC/DC adapters and open-frame SMPS used in consumer and medical auxiliary supplies. IC Role / Device Role / Timing Role: Primary-side TVS connected across bulk capacitor terminals to clamp MOV-induced overshoot and lightning-induced surges. Use Value: Clamps to 219 V within <1 ps, reducing stress on bridge rectifier and primary MOSFET gate oxide during 1 kV/µs transients. | Use Scenario: Protecting constant-current LED driver ICs and MOSFET switches from inductive kickback during dimming or hot-plug events in streetlight and architectural lighting systems. IC Role / Device Role / Timing Role: Unidirectional TVS on high-side switch drain node or output rail to suppress flyback spikes. Use Value: Withstands repeated 1.9 A surges while maintaining <1 µA leakage at 136 V, ensuring no standby power penalty or false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A | Same VWM (136 V), identical DO-214AA package but 600 W rating; higher IPPM (3.2 A) and VC (259 V). | Higher clamping voltage reduces margin for 150 V-rated downstream components; better suited for higher-energy transients. | Select SMBJ160A only if system-level testing confirms 259 V clamping remains within downstream IC absolute maximum ratings. |
| 1.5SMC160A | Same VWM (136 V), larger DO-214AB (SMC) package; 1500 W rating, VC = 259 V @ 5.8 A. | Requires PCB area increase (~2× footprint); intended for industrial mains-connected equipment with higher surge immunity requirements. | Choose 1.5SMC160A when board space allows and IEC 61000-4-5 Level 4 (4 kV) compliance is required. |
Compared with SMBJ160A and 1.5SMC160A, the P4SMA160AH delivers optimal balance of compact DO-214AC footprint, automotive-grade reliability, and precise 219 V clamping - making it ideal for space-constrained, thermally demanding, and AEC-Q101–mandated designs where lower clamping voltage directly improves system robustness.
Availability
P4SMA160AH is available at Aetrix Electronics and suitable for automotive electronics, industrial DC/DC converters, and switching mode power supply (SMPS) applications requiring stable component supply, AEC-Q101 qualification, and repeatable 400 W surge handling.
Supply support for P4SMA160AH 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, MOSFETs, and power management devices.
The P4SMA series belongs to TSC's AEC-Q101–qualified surface-mount TVS portfolio, engineered specifically for automotive and industrial power-line transient suppression with emphasis on low clamping voltage, tight VBR tolerance, and high-reliability packaging.
FAQ
What is the maximum clamping voltage of the P4SMA160AH under standard surge conditions?
The P4SMA160AH has a maximum clamping voltage (VC) of 219 V when subjected to a 10/1000 µs impulse waveform at 1.9 A peak current. This value is measured per ANSI/IEEE C62.35 and confirmed in the official Taiwan Semiconductor datasheet revision A2102. The clamping performance ensures downstream components see no more than 219 V during standardized surge events, supporting reliable protection design for 136 V nominal systems.
Is the P4SMA160AH suitable for automotive applications?
Yes, the P4SMA160AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. Its DO-214AC package passes JESD201 Class 2 whisker testing and J-STD-020 Level 1 moisture sensitivity, making the P4SMA160AH appropriate for engine control units, body control modules, and other under-hood or chassis-mounted automotive electronics where reliability under thermal and mechanical stress is mandatory.
What is the difference between P4SMA160AH and P4SMA160H?
The P4SMA160AH features tighter breakdown voltage tolerance (152–168 V) versus P4SMA160H (144–176 V), resulting in more predictable clamping onset and reduced variation in protection threshold across temperature and lot. Both share identical VWM (136 V), VC (219 V), and package (DO-214AC), but the "A" suffix in P4SMA160AH denotes enhanced VBR uniformity - critical for designs requiring precise overvoltage trip points.
Does the P4SMA160AH have polarity marking, and how is it identified?
Yes, the P4SMA160AH is unidirectional and marked with a cathode band on the DO-214AC (SMA) package body. Per the official Taiwan Semiconductor package drawing, the band indicates the cathode terminal, which must be connected to the protected line (e.g., positive rail), while the anode connects to ground or return. This polarity is essential for correct unidirectional clamping behavior; reverse orientation renders the P4SMA160AH nonfunctional for surge suppression.
What is the peak pulse current rating for the P4SMA160AH?
The P4SMA160AH is rated for a maximum peak impulse current (IPPM) of 1.9 A under the standardized 10/1000 µs double-exponential waveform. This corresponds to its 400 W peak pulse power rating (PPPM) and is validated per Figure 5 in the Taiwan Semiconductor datasheet. The IPPM value reflects single-event surge capability; repetitive surges require derating per the pulse derating curve (Figure 2) based on ambient temperature and duty cycle.
P4SMA160AH 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):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- 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)
P4SMA160AH FAQ
1.How can I place an order for P4SMA160AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160AH 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 P4SMA160AH reliable?
The price and inventory of P4SMA160AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160AH is usually 5 days.
3.What payment methods are accepted for P4SMA160AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160AH?
P4SMA160AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160AH 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 P4SMA160AH?
For technical support, including P4SMA160AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160AH requirements.
6.How does Aetrix verify that P4SMA160AH is sourced from the original manufacturer or authorized distributors?
All P4SMA160AH 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 P4SMA160AH meets industry standards.
7.What is the process for return or replacement of P4SMA160AH?
All P4SMA160AH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160AH, 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 P4SMA160AH part is unused and in its original packaging.
Return procedure for P4SMA160AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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