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Taiwan Semiconductor Corporation 1.5SMC7.5CH
- Part No.:
- 1.5SMC7.5CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5CH.pdf
- Description:
- 1500W, 7.5V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,239
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Product details
Overview
1.5SMC7.5CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 7.5V nominal breakdown voltage (6.75–8.25V), and 11.7V maximum clamping voltage at 500A peak impulse current. It provides ESD and surge protection for automotive-grade DC power lines and signal interfaces.
For engineers reviewing the 1.5SMC7.5CH datasheet, 1.5SMC7.5CH pinout, 1.5SMC7.5CH application, or 1.5SMC7.5CH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1ps response time, and <1μA leakage above 10V working stand-off voltage.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast transient response (<1.0ps) and stable clamping under repetitive surge stress. Its bidirectional configuration enables symmetrical protection of AC-coupled or floating signal paths without polarity sensitivity.
Designed for automotive and industrial environments, the 1.5SMC7.5CH meets ISO 7637-2 test pulses and operates across –55°C to +150°C junction temperature range. Thermal resistance values (RθJA = 50°C/W, RθJC = 15°C/W) support reliable power dissipation in high-density SMT layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 6.75 V / 8.25 V - guaranteed breakdown threshold ensures consistent triggering across production lots and temperature |
| VWM | 6.05 V - working stand-off voltage allows safe operation up to 6.05V DC without leakage activation |
| IPPM | 500 A - peak impulse current rating defines maximum single-event surge energy absorption capacity |
| VC@IPPM | 11.7 V - clamping voltage limits downstream circuit stress during full-rated surge events |
| PPK | 1500 W - peak pulse power rating supports robust protection against lightning-induced transients per IEC 61000-4-5 |
| TJ max | +150 °C - high junction temperature rating enables use in under-hood automotive modules and industrial power supplies |
| Leakage @ VWM | <1 μA - ultra-low blocking leakage preserves battery life and signal integrity in always-on systems |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional, cathode band not applicable (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bidirectional terminal pair | Identical electrical behavior in both directions; no polarity marking required; connects across protected line and ground or differential pair |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including engine control units, body controllers, and infotainment power rails |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) without degradation |
| Glass passivated junction | Ensures long-term reliability and stable VBR drift under thermal cycling and humidity exposure |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling per J-STD-020 |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5V/12V supply rails in automotive ECUs from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between power rail and chassis ground to limit overvoltage to safe levels. Use Value: Clamps to ≤11.7V during 500A surges, preventing damage to microcontrollers and CAN transceivers while maintaining AEC-Q101 qualification. |
Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in factory automation PLCs exposed to ESD and relay switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS placed across differential sensor lines to shunt fast transients before front-end amplifiers. Use Value: Sub-1ps response and <1μA leakage preserve signal fidelity and system standby current in precision measurement circuits. |
| Telecom DC Feeder Protection | Consumer USB Port ESD Suppression |
Use Scenario: Shielding 48V DC power feeds in telecom base station remote radio units from lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at board edge, upstream of DC-DC converters. Use Value: 1500W peak power rating and 11.7V clamping enable compliance with IEC 61000-4-5 Level 4 (4kV) testing requirements. |
Use Scenario: Adding secondary-level ESD protection on USB 2.0 VBUS and data lines in portable audio devices. IC Role / Device Role / Timing Role: Bidirectional TVS placed after primary fuse and upstream of USB controller ICs. Use Value: Symmetrical clamping protects both hot-plug insertion and reverse-polarity misconnection events without polarity constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA | Lower peak power (600W), higher clamping voltage (12.0V @ 30A), SMB package (smaller footprint) | More suitable for low-energy consumer ports; insufficient for ISO 7637-2 Pulse 1 compliance | Select 1.5SMC7.5CH when 1500W surge handling and automotive qualification are mandatory |
| 1.5KE7.5CA | Through-hole TO-218 package, same 1500W rating but slower response (>1ps), no AEC-Q101 qualification | Applicable in industrial power supplies where SMT density is not constrained and automotive validation is unnecessary | Choose 1.5SMC7.5CH for space-constrained, automotive-grade SMT designs requiring verified reliability |
Compared with SMBJ7.0CA and 1.5KE7.5CA, the 1.5SMC7.5CH delivers superior surge robustness in a compact SMT package with certified automotive qualification-enabling single-source compliance for harsh-environment designs without layout or qualification trade-offs.
Availability
1.5SMC7.5CH is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply, AEC-Q101 traceability, and ISO 7637-2 validated surge immunity.
Supply support for 1.5SMC7.5CH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global distribution and automotive qualification capabilities.
The 1.5SMC7.5CH belongs to TSC's AEC-Q101-qualified SMC-format TVS family, engineered specifically for high-reliability transient suppression in automotive power networks and industrial control systems.
FAQ
What does the "CH" suffix indicate in 1.5SMC7.5CH?
The "CH" suffix denotes a bidirectional configuration in the 1.5SMC7.5CH series. Unlike unidirectional variants (e.g., 1.5SMC7.5H), the 1.5SMC7.5CH provides symmetrical clamping in both polarities-ideal for protecting AC-coupled signals, floating buses, or dual-rail power domains without polarity concerns.
Is the 1.5SMC7.5CH AEC-Q101 qualified?
Yes, the 1.5SMC7.5CH is explicitly AEC-Q101 qualified per the manufacturer's documentation. This certification validates its reliability for automotive applications including under-hood environments, with testing covering temperature cycling, humidity bias, mechanical shock, and surge endurance per the AEC-Q101 standard.
What is the maximum clamping voltage of the 1.5SMC7.5CH at rated surge current?
The 1.5SMC7.5CH has a maximum clamping voltage (VC) of 11.7 V at 500 A peak impulse current (IPPM). This value is measured under the 10/1000 μs waveform defined in Fig.5 of the datasheet and represents the upper voltage limit imposed on protected circuitry during full-rated transient events.
Does the 1.5SMC7.5CH meet ISO 7637-2 test requirements?
Yes, the 1.5SMC7.5CH is specified to meet ISO 7637-2 for Pulse 1 (inductive load dump), Pulse 2a/2b (supply disconnection and switching), and Pulse 3a/3b (capacitive coupling). Its 1500W peak power rating and fast response ensure compliance across all five pulse types without derating.
What is the working stand-off voltage (VWM) of the 1.5SMC7.5CH?
The working stand-off voltage (VWM) of the 1.5SMC7.5CH is 6.05 V. This is the maximum continuous DC or RMS voltage the device can withstand without entering conduction-ensuring zero leakage activation during normal operation of 5V or 6V systems.
1.5SMC7.5CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.05V
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.7V
- Current - Peak Pulse (10/1000µs):
- 134A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC7.5CH FAQ
1.How can I place an order for 1.5SMC7.5CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5CH 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 1.5SMC7.5CH reliable?
The price and inventory of 1.5SMC7.5CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC7.5CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5CH?
1.5SMC7.5CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5CH 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 1.5SMC7.5CH?
For technical support, including 1.5SMC7.5CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5CH requirements.
6.How does Aetrix verify that 1.5SMC7.5CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5CH 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 1.5SMC7.5CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5CH?
All 1.5SMC7.5CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5CH, 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 1.5SMC7.5CH part is unused and in its original packaging.
Return procedure for 1.5SMC7.5CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5CH Tags
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