My Inquiry
My Account
Taiwan Semiconductor Corporation P4SMA160CH
- Part No.:
- P4SMA160CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160CH.pdf
- Description:
- 400W, 160V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,809
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA160CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for automotive-grade surge protection in DC power rails and signal lines. It features a 160V working stand-off voltage (VWM), 176V maximum breakdown voltage (VBR), 230V clamping voltage (VC) at 1.8A peak pulse current, 400W peak pulse power rating (10/1000μs), and AEC-Q101 qualification - deployed in on-board DC/DC converters to protect downstream regulators from load dump and ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P4SMA160CH datasheet, P4SMA160CH pinout, P4SMA160CH application, or P4SMA160CH equivalent, key selection criteria include bidirectional clamping capability, DO-214AC (SMA) package compatibility with automated SMT placement, sub-1ps response time, <1μA reverse leakage at VWM, and compliance with automotive EMC standards including ISO 7637-2.
Technical Context
The P4SMA160CH implements a glass-passivated silicon junction optimized for fast transient suppression in bidirectional configurations. Its unidirectional counterpart uses a cathode band marking; the "CH" suffix explicitly denotes bidirectional operation with symmetrical electrical characteristics in both polarities, enabling single-device protection of AC-coupled or floating signal paths without polarity concerns.
It operates across –55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 requirements. The device sustains 40A non-repetitive forward surge (IFSM, 8.3ms half-sine) and maintains clamping performance under derated ambient conditions per Fig.2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse voltage before significant leakage; defines safe operating DC rail margin |
| VBR (min/max) | 144 V / 176 V @ 1 mA - Breakdown threshold range ensures robust turn-on during transients while avoiding false triggering |
| VC @ IPPM | 230 V @ 1.8 A (10/1000μs) - Clamped voltage seen by protected circuit; determines maximum stress on downstream ICs |
| PPPM | 400 W - Peak pulse power handling capacity under standardized surge waveform; validates immunity to ISO 7637-2 pulses |
| IR @ VWM | <1 μA - Ultra-low leakage preserves battery life and avoids loading in high-impedance sensing circuits |
| Response time | <1.0 ps - Enables effective suppression of nanosecond-scale ESD and fast-rising switching noise |
| TJ max | +150 °C - Supports operation in under-hood automotive environments and thermally constrained PCB layouts |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional configuration with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity applied |
| Case | Thermal and mechanical interface | Plastic body provides UL 94V-0 flammability rating; 0.060g mass supports reflow thermal profile stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity exposure |
| Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b | Guarantees functional survival and clamping integrity during standardized vehicle-level EMC testing |
| Moisture sensitivity level 1 | Enables standard SMT assembly without baking or dry-pack handling requirements |
| Halogen-free & RoHS compliant | Supports environmental compliance for global automotive OEM supply chains per IEC 61249-2-21 |
Applications
| On-board DC/DC Converter Protection | Automotive Lighting EMI Suppression |
|---|---|
Use Scenario: Protects 12V-to-5V/3.3V buck converter inputs in headlamp control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed upstream of input capacitor to clamp transients before they reach controller IC and MOSFET gate drivers. Use Value: Limits voltage excursion to ≤230V during 10/1000μs surges, preventing overvoltage failure of the DC/DC controller and maintaining system uptime. | Use Scenario: Suppresses switching noise and flyback spikes generated by LED driver ICs in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Placed across LED string or driver output to absorb inductive kickback and reduce conducted EMI into CAN/LIN bus lines. Use Value: Sub-1ps response ensures clamping before spike propagation, lowering radiated emissions and meeting CISPR 25 Class 5 limits. |
| Infotainment Power Rail Clamp | Body Control Module (BCM) Signal Line Protection |
Use Scenario: Shields USB-C PD port and audio codec power supplies in center-stack infotainment units from hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS on VBUS and AVDD rails absorbs ±15kV contact ESD (IEC 61000-4-2) and 400W load dump energy. Use Value: 230V clamping prevents latch-up or permanent damage to USB-PD controllers and audio amplifiers operating near 12V nominal. | Use Scenario: Protects LIN bus transceivers and sensor inputs (e.g., door lock actuators, mirror position sensors) from battery disconnect transients. IC Role / Device Role / Timing Role: Installed on LIN data line and VBAT-supply pins to provide common-mode and differential-mode surge suppression. Use Value: Symmetrical clamping ensures protection regardless of LIN bus polarity reversal; <1μA leakage avoids signal distortion in low-current sensor interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA | 600W peak power rating; SMB package (DO-214AA); higher VC = 259V @ 2.6A | Better suited for higher-energy transients but requires larger PCB footprint and may over-clamp sensitive 3.3V logic | Select when surge energy exceeds 400W or when existing layout accommodates SMB footprint |
| 1.5KE160CA | 1500W rating; axial DO-15 package; VC = 259V @ 5.8A; not surface-mount | Requires through-hole assembly; unsuitable for automated SMT production or space-constrained automotive modules | Choose only for prototyping or legacy through-hole designs where rework tolerance is prioritized over volume manufacturability |
Compared with SMBJ160CA and 1.5KE160CA, the P4SMA160CH delivers optimal balance of AEC-Q101 compliance, DO-214AC SMT compatibility, 400W surge handling, and 230V clamping - making it the preferred choice for high-volume automotive electronics requiring automated assembly and strict board-area constraints.
Availability
P4SMA160CH is available at Aetrix Electronics and suitable for automotive power management, lighting control, and body electronics applications requiring stable component supply, AEC-Q101 qualification, and DO-214AC packaging.
Supply support for P4SMA160CH 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, serving automotive, industrial, and consumer markets with AEC-Q101-qualified protection devices and power solutions.
The P4SMA160CH belongs to TSC's P4SMAxH family of surface-mount TVS diodes engineered specifically for automotive-grade transient suppression in space-constrained, high-reliability DC power and signal interfaces.
FAQ
What does the "CH" suffix indicate in P4SMA160CH?
The "CH" suffix in P4SMA160CH designates a bidirectional configuration - meaning the device clamps transient voltages symmetrically in both polarities without cathode/anode distinction. This enables single-device protection of AC-coupled lines, differential buses, or floating supplies, unlike unidirectional "H" variants which require correct polarity orientation. The P4SMA160CH exhibits identical VBR, VC, and IR specifications in either direction.
Is P4SMA160CH suitable for ISO 7637-2 compliance testing?
Yes, the P4SMA160CH is explicitly rated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test waveforms per manufacturer documentation. Its 400W peak pulse power rating (10/1000μs), 230V clamping voltage at 1.8A, and <1μA leakage at 130V VWM ensure reliable suppression of load dump, supply interruption, and coupled transients encountered in 12V automotive networks - making it suitable for front-end protection in ECUs validated to ISO 7637-2.
What is the maximum junction temperature rating for P4SMA160CH?
The P4SMA160CH has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings table. This rating supports operation in under-hood environments and thermally dense PCB layouts typical of automotive body control modules and lighting drivers. Derating curves (Fig.2) define allowable peak pulse power reduction above +25°C ambient, ensuring safe operation up to full TJ limit under sustained thermal stress.
Does P4SMA160CH require special handling for moisture sensitivity?
No - the P4SMA160CH is rated at Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions (<30°C / 60% RH) and processed using standard reflow profiles without baking or dry-pack requirements. This simplifies SMT manufacturing logistics and eliminates moisture-related popcorning risk during lead-free reflow, supporting high-yield automated assembly of automotive PCBs.
How does the clamping voltage of P4SMA160CH compare to its breakdown voltage?
The P4SMA160CH has a minimum breakdown voltage (VBR) of 144V and a maximum clamping voltage (VC) of 230V at 1.8A (10/1000μs). This 86V difference represents the dynamic voltage overshoot during transient conduction - a critical design margin that must remain below the absolute maximum rating of protected components. For example, a 200V-rated MOSFET downstream would retain 27V of safety margin under worst-case clamping by the P4SMA160CH.
P4SMA160CH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 230V
- Current - Peak Pulse (10/1000µs):
- 1.8A
- 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)
P4SMA160CH FAQ
1.How can I place an order for P4SMA160CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160CH 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 P4SMA160CH reliable?
The price and inventory of P4SMA160CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160CH is usually 5 days.
3.What payment methods are accepted for P4SMA160CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160CH?
P4SMA160CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160CH 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 P4SMA160CH?
For technical support, including P4SMA160CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160CH requirements.
6.How does Aetrix verify that P4SMA160CH is sourced from the original manufacturer or authorized distributors?
All P4SMA160CH 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 P4SMA160CH meets industry standards.
7.What is the process for return or replacement of P4SMA160CH?
All P4SMA160CH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160CH, 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 P4SMA160CH part is unused and in its original packaging.
Return procedure for P4SMA160CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA160CH Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
