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Taiwan Semiconductor Corporation P4SMA36CH
- Part No.:
- P4SMA36CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36CH.pdf
- Description:
- 400W, 36V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:8,995
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Product details
Overview
P4SMA36CH from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, with 32.4V–39.6V breakdown voltage (VBR), 29.1V working stand-off voltage (VWM), and 52.0V clamping voltage (VC) at 8.0A peak pulse current (IPPM). It protects DC/DC converters and automotive power supplies against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P4SMA36CH datasheet, P4SMA36CH pinout, P4SMA36CH application, or P4SMA36CH equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150°C junction temperature rating, glass-passivated junction, and compliance with J-STD-020 moisture sensitivity level 1.
Technical Context
The P4SMA36CH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds VBR (min 32.4V, max 39.6V at 1.0mA test current), clamping transient energy within 1.0ps response time to limit downstream voltage stress. Its glass-passivated junction ensures stable leakage performance (<1µA at VWM = 29.1V) and long-term reliability under repeated surge events.
Designed for automotive-grade environments, it meets ISO 7637-2 immunity requirements across all five defined pulses and supports operation from –55°C to +150°C. The DO-214AC (SMA) package enables automated placement and provides UL 94V-0 flammability-rated molding compound with matte tin-plated leads compliant to J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0mA | 32.4V–39.6V: defines minimum and maximum voltage at which avalanche conduction begins under standardized test conditions |
| VWM | 29.1V: maximum continuous reverse operating voltage before significant leakage; sets system-level overvoltage margin |
| VC @ IPPM = 8.0A | 52.0V: clamped voltage during 10/1000μs surge; determines maximum stress on protected ICs or MOSFETs |
| PPPM | 400W: peak pulse power handling capability per single non-repetitive 10/1000μs waveform |
| IR @ VWM | <1µA: ultra-low reverse leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +150°C: maximum junction temperature rating enabling use in under-hood automotive or high-power industrial environments |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, unidirectional configuration with cathode band marking. Weight: 0.060g. Molding compound meets UL 94V-0; terminals are matte tin plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return in unidirectional TVS configuration; carries full surge current during clamping |
| Cathode | Reverse-biased terminal / Clamping node | Connected to protected line (e.g., 24V rail); voltage at this terminal is clamped to ≤52.0V during transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS power rails |
| Glass-passivated junction | Ensures stable VBR tolerance and low IR drift over temperature and lifetime vs. epoxy-passivated alternatives |
| Fast response time <1.0ps | Enables protection of high-speed digital interfaces and fast-switching power MOSFETs before damage occurs |
| Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b | Provides certified immunity against load dump, alternator ripple, inductive switching, and battery connection transients |
Applications
| Automotive Power Rail Protection | On-Board DC/DC Converter Input |
|---|---|
Use Scenario: Protecting 12V/24V vehicle battery-fed circuits from load dump and alternator-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients before they reach PMICs or microcontrollers. Use Value: Limits peak voltage to 52.0V during 400W surges, preventing latch-up or gate oxide rupture in downstream 36V-rated components. | Use Scenario: Safeguarding input stage of buck converter powering infotainment or ADAS domain controllers. IC Role / Device Role / Timing Role: Front-end transient suppression on VIN pin to maintain stable input voltage during ignition cycling or ESD events. Use Value: With <1µA leakage at 29.1V, avoids efficiency loss in always-on domains while clamping 10/1000μs pulses to safe levels. |
| Industrial SMPS Input Stage | LED Driver Power Supply Protection |
Use Scenario: Guarding AC/DC or DC/DC converter inputs in factory automation equipment exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 400W pulses without degradation, mounted directly at connector entry point. Use Value: 150°C TJ max allows reliable operation inside sealed enclosures with ambient temperatures up to 105°C. | Use Scenario: Shielding constant-current LED driver ICs from voltage spikes caused by hot-plug or cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor placed across input capacitor to prevent overvoltage shutdown or internal regulator failure. Use Value: 52.0V clamping ensures LED string drivers rated for 45V input remain within absolute maximum ratings during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | 600W rating, DO-214AA (SMB) package, higher VC = 58.1V at 10.3A | Higher power handling but larger footprint; less suitable for space-constrained automotive modules | Select SMBJ36A only if system-level surge energy exceeds 400W or board layout permits SMB package |
| 1.5SMC36A | 1500W rating, DO-214AB (SMC) package, VC = 58.1V at 25.8A | Designed for heavy industrial load dump; over-specified for most automotive ECUs | Choose 1.5SMC36A only for high-energy bus systems where PCB area and cost are secondary to robustness |
Compared with SMBJ36A and 1.5SMC36A, the P4SMA36CH offers optimal balance of AEC-Q101 compliance, DO-214AC compactness, and precise 52.0V clamping-making it ideal for automotive body control modules and compact DC/DC designs where footprint and clamping accuracy are critical.
Availability
P4SMA36CH is available at Aetrix Electronics and suitable for automotive power rail protection, on-board DC/DC converter input stages, and industrial SMPS input protection requiring stable component supply and AEC-Q101 traceability.
Supply support for P4SMA36CH 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 clamping precision, thermal stability, and automated assembly compatibility.
FAQ
What is the polarity configuration of the P4SMA36CH?
The P4SMA36CH is a unidirectional TVS diode, indicated by the "H" suffix and cathode band marking. It conducts only in reverse bias above VBR, making it suitable for protecting positive-rail systems where ground-referenced clamping is required. Unlike bidirectional variants (e.g., P4SMA36CH has no symmetrical clamping behavior in forward direction.
Does the P4SMA36CH meet automotive qualification standards?
Yes, the P4SMA36CH is AEC-Q101 qualified and tested per ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms. Its glass-passivated junction, J-STD-020 Level 1 moisture sensitivity, and –55°C to +150°C operating range confirm suitability for under-hood and body electronics applications where the P4SMA36CH is deployed.
What is the clamping voltage of the P4SMA36CH under standard surge conditions?
The P4SMA36CH exhibits a maximum clamping voltage (VC) of 52.0V at 8.0A peak pulse current (IPPM) using the 10/1000μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events, ensuring compatibility with 36V-rated downstream components in the P4SMA36CH application.
How does the P4SMA36CH compare to the P4SMA36AH variant?
The P4SMA36AH has tighter VBR tolerance (34.2V–37.8V vs. 32.4V–39.6V for P4SMA36CH), higher VWM (30.8V vs. 29.1V), and lower VC (49.9V vs. 52.0V). While both share DO-214AC packaging and 400W rating, the P4SMA36CH offers broader breakdown range and slightly higher clamping-making it more tolerant of manufacturing variance but less precise than the P4SMA36AH in tightly regulated systems.
Is the P4SMA36CH RoHS and halogen-free compliant?
Yes, the P4SMA36CH is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated to ensure lead-free solder compatibility and whisker resistance per JESD 201 Class 2-critical for long-life automotive deployments where the P4SMA36CH is used.
P4SMA36CH 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):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 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)
P4SMA36CH FAQ
1.How can I place an order for P4SMA36CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36CH 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 P4SMA36CH reliable?
The price and inventory of P4SMA36CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA36CH is usually 5 days.
3.What payment methods are accepted for P4SMA36CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36CH?
P4SMA36CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36CH 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 P4SMA36CH?
For technical support, including P4SMA36CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36CH requirements.
6.How does Aetrix verify that P4SMA36CH is sourced from the original manufacturer or authorized distributors?
All P4SMA36CH 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 P4SMA36CH meets industry standards.
7.What is the process for return or replacement of P4SMA36CH?
All P4SMA36CH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36CH, 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 P4SMA36CH part is unused and in its original packaging.
Return procedure for P4SMA36CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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