My Inquiry
My Account
Taiwan Semiconductor Corporation P4SMA180CH
- Part No.:
- P4SMA180CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA180CH.pdf
- Description:
- 400W, 180V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,405
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA180CH from Taiwan Semiconductor is a bidirectional 400W surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, with 162–198 V breakdown voltage (VBR), 146 V working stand-off voltage (VWM), and 258 V clamping voltage (VC) at 1.6 A peak impulse current under 10/1000 µs waveform-designed for automotive-grade surge protection in on-board DC/DC converters.
For engineers reviewing the P4SMA180CH datasheet, P4SMA180CH pinout, P4SMA180CH application, or P4SMA180CH equivalent, this device delivers AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, <1 µA reverse leakage at VWM, and sub-1 ps response time-critical for robust ESD and load-dump immunity in harsh automotive environments.
Technical Context
The P4SMA180CH is a unidirectional/bidirectional TVS diode configured as a single die in a DO-214AC package, optimized for transient suppression in automotive power rails. Its glass-passivated junction ensures stable clamping performance across -55°C to +150°C operating junction temperature, with thermal derating per Figure 2 above 25°C ambient.
It meets ISO 7637-2 test requirements for vehicle electrical systems-including Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling noise)-and supports automated SMT placement with matte tin-plated leads compliant to J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 162 V / 198 V at 1.0 mA test current - defines reliable conduction onset under surge conditions |
| VWM | 146 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC@IPPM | 258 V at 1.6 A (10/1000 µs) - peak clamped voltage limiting stress on downstream circuitry |
| PPPM | 400 W - peak pulse power handling capability for short-duration transients |
| IR@VWM | <1 µA - minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max | +150 °C - enables operation in under-hood automotive environments without thermal shutdown |
| Response time | <1.0 ps - ensures clamping activation before transient energy damages sensitive ICs |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking for polarity identification; molded compound rated UL 94V-0; weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (bidirectional mode) | Provides low-impedance path to ground during positive or negative surges when used in bipolar configuration |
| Cathode | Transient current source (bidirectional mode) | Completes symmetrical clamping path; marked by band for orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control units and body modules |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress |
| ISO 7637-2 compliance | Guarantees survivability against standardized automotive electrical transients without external filtering |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling prior to assembly |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU environmental directives for green manufacturing |
Applications
| Automotive On-Board DC/DC Converter | Industrial Switching Power Supply |
|---|---|
Use Scenario: Protection of 12 V/24 V input stage against load dump and alternator ripple in vehicle-mounted buck converters. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at converter input terminals. Use Value: Limits transient voltage to ≤258 V while absorbing 400 W pulses-preventing MOSFET gate oxide rupture and controller latch-up. | Use Scenario: Input rail protection in industrial SMPS units exposed to lightning-induced surges on AC mains or DC bus lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of bridge rectifier and bulk capacitor. Use Value: Sub-1 ps response ensures clamping occurs before 100 ns rise-time transients propagate into regulation circuitry. |
| LED Driver Module | Automotive Lighting System |
Use Scenario: Surge suppression in constant-current LED drivers powered from unstable 12 V vehicle batteries. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between input and ground to shunt switching spikes from relay coils or solenoids. Use Value: 146 V VWM allows normal operation during battery cranking dips while blocking >162 V transients. | Use Scenario: Front-end protection for adaptive headlight control modules subject to ISO 7637-2 Pulse 2b (battery feed interruption). IC Role / Device Role / Timing Role: Bidirectional clamping device connected across supply and return lines near connector interface. Use Value: AEC-Q101 qualification and moisture level 1 ensure reliability in sealed, thermally constrained lamp housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA | 600 W rating, SMB package (larger footprint), higher VC = 289 V at 2.1 A | Better suited for higher-energy transients but requires PCB layout change | Select when system-level testing shows 400 W insufficient; verify thermal relief for SMB pad size |
| 1.5KE180CA | 1500 W rating, DO-201 package (through-hole), VC = 292 V at 5.1 A | Not SMT-compatible; intended for prototyping or low-volume board repair | Use only where manual assembly is acceptable and space constraints allow axial leaded component |
Compared with P4SMA180CH, SMBJ180CA offers higher pulse power but larger footprint and elevated clamping voltage, while 1.5KE180CA provides significantly greater energy handling at the cost of SMT compatibility and board density-making P4SMA180CH optimal for space-constrained, high-reliability automotive SMT designs.
Availability
P4SMA180CH is available at Aetrix Electronics and suitable for automotive on-board DC/DC converters, industrial switching power supplies, and LED driver modules requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA180CH 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 for automotive and industrial markets.
The P4SMA series belongs to TSC's AEC-Q101-qualified transient suppression product line, engineered specifically for robustness against ISO 7637-2 pulses in automotive power distribution and lighting subsystems.
FAQ
What does the 'CH' suffix indicate in P4SMA180CH?
The 'CH' suffix in P4SMA180CH denotes a bidirectional configuration with cathode-band marking, enabling symmetrical clamping for both positive and negative transients-distinct from unidirectional 'H' variants. This makes P4SMA180CH suitable for applications like differential signal lines or floating power rails where polarity reversal may occur during surge events.
Is P4SMA180CH compatible with lead-free reflow processes?
Yes, P4SMA180CH features matte tin-plated leads compliant with J-STD-002 solderability standards and is rated for standard lead-free reflow profiles up to 260°C peak temperature. Its DO-214AC package and moisture sensitivity level 1 classification eliminate pre-baking requirements, supporting high-yield automated assembly in RoHS-compliant production lines.
How does P4SMA180CH meet ISO 7637-2 Pulse 1 and Pulse 2b requirements?
P4SMA180CH meets ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2b (battery feed interruption) through its 400 W peak pulse power rating, 258 V clamping voltage at 1.6 A, and sub-1 ps response time-ensuring energy diversion occurs before transient voltage exceeds safe thresholds for downstream controllers and gate drivers in automotive ECUs.
What is the maximum junction temperature rating for P4SMA180CH?
The maximum junction temperature (TJ) for P4SMA180CH is +150°C, validated across its full operating range from -55°C to +150°C. This rating supports deployment in under-hood automotive locations and industrial enclosures where ambient temperatures exceed 105°C, provided PCB copper area and airflow meet thermal derating curves in Figure 2 of the datasheet.
Can P4SMA180CH be used in place of P4SMA180AH?
No-P4SMA180CH is bidirectional, whereas P4SMA180AH is unidirectional. Their VBR ranges differ slightly (P4SMA180CH: 162–198 V; P4SMA180AH: 171–189 V), and the CH variant lacks polarity-dependent forward conduction behavior. Substitution requires circuit review to confirm bidirectional clamping is acceptable and that no forward-bias functionality is required in the design.
P4SMA180CH 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):
- 146V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 258V
- Current - Peak Pulse (10/1000µs):
- 1.6A
- 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)
P4SMA180CH FAQ
1.How can I place an order for P4SMA180CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA180CH 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 P4SMA180CH reliable?
The price and inventory of P4SMA180CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA180CH is usually 5 days.
3.What payment methods are accepted for P4SMA180CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA180CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA180CH?
P4SMA180CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA180CH 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 P4SMA180CH?
For technical support, including P4SMA180CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA180CH requirements.
6.How does Aetrix verify that P4SMA180CH is sourced from the original manufacturer or authorized distributors?
All P4SMA180CH 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 P4SMA180CH meets industry standards.
7.What is the process for return or replacement of P4SMA180CH?
All P4SMA180CH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA180CH, 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 P4SMA180CH part is unused and in its original packaging.
Return procedure for P4SMA180CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA180CH 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…
