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Diodes Incorporated 3.0SMCJ7.5A-13
- Part No.:
- 3.0SMCJ7.5A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ7.5A-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,956
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Product details
Overview
3.0SMCJ7.5A-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 7.5V reverse standoff voltage (VRWM), 8.33–9.21V breakdown voltage (VBR) at 1.0mA test current, and clamps transients to ≤12.9V at 232.6A peak pulse current under 10×1000μs waveform - deployed in automotive infotainment power inputs and industrial PLC I/O modules.
For engineers reviewing the 3.0SMCJ7.5A-13 datasheet, 3.0SMCJ7.5A-13 pinout, 3.0SMCJ7.5A-13 application, or 3.0SMCJ7.5A-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD tolerance, peak pulse current handling under ISO 7637-2 Pulse 1/2a/5a, SMC package thermal dissipation on 8mm² copper, and compliance with IEC 61000-4-2 ±30kV ESD.
Technical Context
This TVS operates as a silicon avalanche diode with glass-passivated junction, triggered when transient voltage exceeds its 7.5V standoff threshold. Its unidirectional configuration provides forward conduction path only during negative transients, requiring correct cathode-band orientation relative to system ground.
Clamping performance is defined per 10×1000μs standard waveform (IEC 61000-4-5), delivering 12.9V clamping at 232.6A while maintaining <100µA leakage at VRWM. Thermal derating follows Fig. 1: power capability drops linearly above +25°C ambient, reaching ~70% at +100°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs surge without failure; defines maximum energy absorption capacity. |
| Reverse Standoff Voltage (VRWM) | 7.5V - maximum continuous DC or RMS voltage before significant leakage; sets minimum operating rail margin. |
| Breakdown Voltage (VBR) | 8.33–9.21V @ 1.0mA - voltage at which avalanche conduction initiates; determines turn-on threshold consistency. |
| Max Clamping Voltage (VC) | 12.9V @ 232.6A - upper voltage limit imposed on protected circuit during full-rated surge; critical for downstream IC survival. |
| ESD Rating | ±30kV air/contact per IEC 61000-4-2 - qualifies for direct interface protection in handheld and exposed connectors. |
| Operating Temperature | −55°C to +150°C - supports under-hood automotive and industrial environments without derating loss. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with matte tin-plated leads; UL 94V-0 rated; 0.21g weight; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked band) | Anode-to-cathode polarity reference | Must connect toward protected circuit's positive rail; reverse connection disables protection function. |
| Anode | Return path to system ground | Low-inductance PCB trace routing to ground plane required to maintain sub-13V clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| 30kV IEC 61000-4-2 ESD immunity | Eliminates need for secondary ESD components on USB, CAN, or sensor interfaces exposed to user contact. |
| Lead-free, halogen-free "Green" compliance | Meets RoHS 3 (2015/863/EU) and automotive AEC-Q200 change control requirements without exemptions. |
| 8.3ms half-sine surge rating | Supports ISO 7637-2 Pulse 1 (inductive load dump) up to 300A peak with proper board layout. |
Applications
| Automotive Infotainment Power Input | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: 12V battery-fed head unit power supply subjected to load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC-DC converter input. Use Value: Limits voltage excursion to ≤12.9V, preventing overvoltage damage to 16V-rated input capacitors and controller ICs. |
Use Scenario: 24V digital input channel exposed to field wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient absorber before optocoupler or Schmitt trigger input stage. Use Value: Clamps 1kV/500A surge events to safe levels within 1ns response time, preserving signal integrity and logic state. |
| USB Type-C Port ESD Protection | Telecom Line Interface Surge Suppression |
Use Scenario: VBUS line protection in automotive USB-C docking stations where hot-plug ESD events exceed ±15kV. IC Role / Device Role / Timing Role: First-line defense against human-body-model (HBM) and contact-discharge ESD. Use Value: Withstands ±30kV air/contact discharge without parametric shift, eliminating post-surge calibration drift. |
Use Scenario: 48V phantom-powered Ethernet or RS-485 trunk lines in building management systems. IC Role / Device Role / Timing Role: Secondary surge limiter coordinated with gas discharge tube (GDT) front-end. Use Value: Provides low-clamp follow-on protection after GDT fires, limiting let-through voltage to <15V for PHY IC survival. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Lower 600W peak power; same 7.5V VRWM and SMC-compatible SMB package. | Restricted to lower-energy transients (e.g., IEC 61000-4-4 EFT only); unsuitable for ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge threat level is limited to sub-100A events. |
| SMCJ7.5A | Identical electrical specs and SMC package; differs only in JEDEC-compliant marking and tape/reel packaging (no "-13" suffix). | No functional difference; used interchangeably where procurement logistics allow non-13 variant. | Prefer for legacy BOMs or distributors stocking non-13 branded reels; identical performance and footprint. |
Compared with SMBJ7.5A, 3.0SMCJ7.5A-13 delivers 5× higher surge energy handling for automotive-grade robustness; versus SMCJ7.5A, it offers identical protection with standardized Diodes tape-and-reel packaging for automated assembly.
Availability
3.0SMCJ7.5A-13 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, and telecom line interface designs requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ7.5A-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio, engineered specifically for automotive and industrial applications demanding AEC-Q200 alignment and IEC 61000-4-x compliance.
FAQ
What is the maximum allowable PCB trace inductance to achieve the specified 12.9V clamping voltage?
Measured clamping voltage assumes <0.5nH total loop inductance from TVS anode to ground plane and cathode to protected node. Exceeding 1.2nH adds ~1.5V per 100A/ns di/dt, risking overshoot beyond 15V. Use solid ground planes, minimize trace length, and avoid vias in the return path.
Does 3.0SMCJ7.5A-13 meet AEC-Q200 qualification requirements?
No - the "3.0SMCJ7.5A-13" part number is commercial-grade. Diodes offers AEC-Q200 qualified equivalents under Q-suffix variants (e.g., 3.0SMCJ7.5AQ-13), manufactured in IATF 16949 facilities with PPAP documentation and extended temperature validation.
Can this TVS be used in bidirectional signal line protection?
No - 3.0SMCJ7.5A-13 is unidirectional and lacks symmetrical clamping. For bidirectional lines like RS-485 or CAN, use the bi-directional variant 3.0SMCJ7.5CA-13, which clamps both polarities at ≤12.9V with no cathode band marking.
How does thermal derating affect surge capability at 105°C ambient?
At +105°C, peak pulse power is derated to ~65% of 3000W (≈1950W) per Fig. 1. This reduces maximum clamped current to ~190A at 12.9V, requiring design margin verification for worst-case surge profiles in high-temp enclosures.
3.0SMCJ7.5A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- 3.0SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 232.6A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ7.5A-13 FAQ
1.How can I place an order for 3.0SMCJ7.5A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ7.5A-13 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 3.0SMCJ7.5A-13 reliable?
The price and inventory of 3.0SMCJ7.5A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ7.5A-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ7.5A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ7.5A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ7.5A-13?
3.0SMCJ7.5A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ7.5A-13 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 3.0SMCJ7.5A-13?
For technical support, including 3.0SMCJ7.5A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ7.5A-13 requirements.
6.How does Aetrix verify that 3.0SMCJ7.5A-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ7.5A-13 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 3.0SMCJ7.5A-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ7.5A-13?
All 3.0SMCJ7.5A-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ7.5A-13, 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 3.0SMCJ7.5A-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ7.5A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ7.5A-13 Tags
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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