My Inquiry
My Account
Taiwan Semiconductor Corporation P4SMA160CAH
- Part No.:
- P4SMA160CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160CAH.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,548
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA160CAH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, rated for 400W peak pulse power, 160V breakdown voltage (min 144V, max 176V), and clamping voltage of 219V at 1.9A peak impulse current under 10/1000μs waveform. It serves as primary overvoltage protection in automotive DC/DC converters and industrial power supplies.
For engineers reviewing the P4SMA160CAH datasheet, P4SMA160CAH pinout, P4SMA160CAH application, or P4SMA160CAH equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, ISO 7637-2 compliance, clamping performance, and real-world design implications for surge protection in 12–48V systems.
Technical Context
The P4SMA160CAH is a glass-passivated, bipolar TVS diode designed for bidirectional transient suppression across both polarities. Its junction operates within -55°C to +150°C, with <1μA reverse leakage at 136V working stand-off voltage and <1.0ps response time to ESD and lightning-induced surges.
It meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms and is rated for 40A non-repetitive forward surge current. The device uses a single-die configuration in DO-214AC package with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 144 V / 176 V - Ensures reliable conduction onset above system nominal voltage while avoiding false triggering during transients. |
| VWM | 136 V - Maximum continuous reverse operating voltage; defines safe DC bias margin before leakage rises. |
| VC@IPPM | 219 V at 1.9 A - Clamped voltage during 10/1000μs surge; determines protected circuit's maximum stress level. |
| PPPM | 400 W - Peak pulse power rating; sets survivable energy threshold for standardized surge events. |
| IR@VWM | <1 μA - Ultra-low leakage preserves efficiency in high-impedance sensing or standby circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive or enclosed industrial environments without derating. |
| Response time | <1.0 ps - Sub-nanosecond switching ensures suppression before sensitive ICs experience damage. |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; dual-terminal construction optimized for automated placement and reflow soldering. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Transient current entry point in negative polarity events | Completes bidirectional clamping path; symmetric with cathode for AC or floating rail protection. |
| Cathode (banded end) | Transient current entry point in positive polarity events | Enables low-impedance discharge to ground or return path during positive surges; polarity marking critical for layout verification. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test conditions. |
| Glass passivated junction | Provides stable VBR tolerance and long-term leakage stability under humidity and thermal stress. |
| ISO 7637-2 compliance | Guarantees functional immunity to load dump, alternator ripple, and inductive switch-off pulses in 12V/24V vehicle networks. |
| Moisture sensitivity level 1 | Eliminates bake preconditioning prior to reflow; supports standard SMT assembly without handling restrictions. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally constrained applications and export compliance. |
Applications
| Automotive On-Board DC/DC Converter | Industrial SMPS Input Stage |
|---|---|
Use Scenario: Protects secondary-side controller ICs and gate drivers from coupled transients originating from primary-side MOSFET switching or battery line disturbances. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across input rails or between rail and chassis ground. Use Value: Limits transient voltage to ≤219V, preventing latch-up or oxide breakdown in 3.3V/5V logic interfaces powered by isolated DC/DC modules. | Use Scenario: Shields rectifier output and PWM controller supply pins against line surges and back-EMF from connected motors or solenoids. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk capacitor terminals or auxiliary bias rail inputs. Use Value: Withstands 400W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 3 (2kV/1kA) when combined with series impedance. |
| LED Driver Power Input | Telecom DC Power Distribution |
Use Scenario: Safeguards constant-current LED driver ICs from voltage spikes induced by hot-plug events or nearby relay switching in streetlight or signage systems. IC Role / Device Role / Timing Role: Parallel-connected transient absorber at driver input, upstream of bulk capacitance. Use Value: Sub-1ps response ensures clamping activation before driver IC internal ESD structures fail, preserving luminous output consistency over lifetime. | Use Scenario: Provides secondary-side surge protection on -48V telecom power feeds entering base station control cards or remote radio units. IC Role / Device Role / Timing Role: Bidirectional rail-to-rail clamp on distributed power bus nodes. Use Value: 136V working voltage accommodates -48V nominal with ±20% tolerance and ripple, while 219V clamping prevents damage to PMICs and FPGAs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA | 600W rating, SMB package (larger footprint), 224V clamping at 2.7A | Higher power handling but requires PCB area increase; less suitable for space-constrained automotive modules | Select when system-level surge energy exceeds 400W or when higher IPPM margin is required. |
| 1.5SMC160CA | 1500W rating, SMC package (7.1mm × 6.2mm), 259V clamping at 5.8A | Designed for mains-input protection; over-specified for low-voltage DC rails and incompatible with fine-pitch layouts | Choose only for front-end AC/DC or high-energy DC bus protection where footprint and cost are secondary to robustness. |
Compared with SMBJ160CA and 1.5SMC160CA, the P4SMA160CAH offers optimal balance of 400W surge capability, DO-214AC compactness, and AEC-Q101 qualification-making it the preferred choice for space-limited, automotive-grade DC/DC converter protection where clamping voltage and thermal profile are tightly constrained.
Availability
P4SMA160CAH is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial PLC I/O modules, and telecom DC distribution systems requiring stable component supply and full traceability.
Supply support for P4SMA160CAH 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 P4SMA160CAH belongs to TSC's AEC-Q101-qualified P4SMAx(A)H family, engineered specifically for robust transient suppression in automotive and industrial 12–200V DC systems with emphasis on low clamping ratio and high reliability under thermal cycling.
FAQ
What does the 'CAH' suffix indicate in P4SMA160CAH?
The 'CAH' suffix in P4SMA160CAH denotes a bidirectional configuration (C), AEC-Q101 qualification (A), and halogen-free construction (H). This distinguishes it from unidirectional variants (e.g., P4SMA160AH) and confirms compliance with automotive reliability standards and environmental regulations. The P4SMA160CAH is explicitly rated for symmetrical transient suppression in both polarities.
Does P4SMA160CAH meet ISO 7637-2 Pulse 5a (load dump)?
No, the P4SMA160CAH is rated for ISO 7637-2 Pulses 1, 2a, 2b, 3a, and 3b-but not Pulse 5a (load dump), which requires higher energy handling (≥400V, ≥100ms duration). For load dump protection, a dedicated load-dump suppressor or TVS with higher VWM/PPPM (e.g., SMAJ170A) must be used in conjunction with the P4SMA160CAH.
What is the maximum clamping voltage of P4SMA160CAH under standardized surge conditions?
The maximum clamping voltage of P4SMA160CAH is 219 V at 1.9 A peak impulse current under the 10/1000μs double-exponential waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can P4SMA160CAH be used in place of P4SMA160AH in a new design?
Yes, P4SMA160CAH can replace P4SMA160AH if bidirectional protection is required-but not vice versa. The P4SMA160CAH provides symmetrical clamping in both directions, whereas P4SMA160AH is unidirectional. Using P4SMA160AH in a bidirectional application risks failure during negative transients. Always verify polarity requirements before substitution.
Is P4SMA160CAH compatible with lead-free reflow profiles?
Yes, P4SMA160CAH supports standard lead-free reflow soldering per J-STD-020 Level 1 (MSL-1), with peak temperatures up to 260°C. Its DO-214AC package uses matte tin-plated leads qualified to J-STD-002, and its molding compound meets UL 94V-0 flammability rating-ensuring compatibility with IPC-A-610 Class 2/3 assembly processes.
P4SMA160CAH 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):
- 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)
P4SMA160CAH FAQ
1.How can I place an order for P4SMA160CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160CAH 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 P4SMA160CAH reliable?
The price and inventory of P4SMA160CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160CAH is usually 5 days.
3.What payment methods are accepted for P4SMA160CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160CAH?
P4SMA160CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160CAH 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 P4SMA160CAH?
For technical support, including P4SMA160CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160CAH requirements.
6.How does Aetrix verify that P4SMA160CAH is sourced from the original manufacturer or authorized distributors?
All P4SMA160CAH 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 P4SMA160CAH meets industry standards.
7.What is the process for return or replacement of P4SMA160CAH?
All P4SMA160CAH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160CAH, 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 P4SMA160CAH part is unused and in its original packaging.
Return procedure for P4SMA160CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA160CAH 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…
