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Diodes Incorporated 3.0SMCJ30A-13
- Part No.:
- 3.0SMCJ30A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ30A-13.pdf
- Description:
- TVS DIODE 30VWM 48.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:16,973
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Product details
Overview
3.0SMCJ30A-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 30V reverse standoff voltage (VRWM), 33.3V minimum breakdown voltage (VBR), 48.4V maximum clamping voltage (VC) at 62A peak pulse current (IPP), and IEC-61000-4-2 ESD immunity of 30kV (air/contact). It is used in industrial power supplies to safeguard rectifier outputs against lightning-induced surges.
For engineers reviewing the 3.0SMCJ30A-13 datasheet, 3.0SMCJ30A-13 pinout, 3.0SMCJ30A-13 application, or 3.0SMCJ30A-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current handling under 10/1000μs waveform, thermal derating above +25°C ambient, and SMC package solderability per MIL-STD-202.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias it presents <5μA leakage at 30V VRWM; during transients exceeding 33.3V, it avalanches into low-impedance conduction to clamp voltage to ≤48.4V at 62A. Its glass-passivated junction ensures stable breakdown and low capacitance.
The device complies with IEC-61000-4-2 Level 4 (30kV air/30kV contact) and JEDEC high-reliability standards. It is rated for continuous operation from –55°C to +150°C junction temperature and supports automotive-grade qualification via Q-suffix variants manufactured in IATF 16949 facilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10/1000μs surge without failure; defines maximum energy absorption capability |
| Reverse Standoff Voltage (VRWM) | 30.0V - maximum continuous DC or RMS voltage before significant leakage; sets operating rail ceiling |
| Breakdown Voltage (VBR) | 33.3–36.8V @ 1.0mA - guaranteed avalanche initiation range; determines turn-on threshold tolerance |
| Clamping Voltage (VC) | 48.4V @ 62.0A - maximum voltage seen by protected circuit during full-rated surge; critical for IC survivability |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - withstands direct electrostatic discharge events without degradation |
| Operating Temperature | –55°C to +150°C - enables deployment in under-hood automotive or industrial motor drive environments |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; weight ≈ 0.21g; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-to-cathode polarity reference | Identifies cathode terminal for correct orientation in unidirectional DC rail protection; required for proper clamping direction |
| Anode | Return path for surge current | Connected to ground or low-impedance return plane; must route with minimal inductance to preserve clamping performance |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse power | Enables protection against high-energy lightning surges (e.g., IEC 61000-4-5 Level 3: 2Ω/12Ω coupling, 1kV/2kV test) |
| Glass-passivated die construction | Ensures stable VBR over temperature and lifetime; eliminates passivation-related leakage drift in humid environments |
| RoHS-compliant, halogen-free "Green" finish | Meets EU Directive 2015/863/EU with Br+Cl <1500ppm and Sb <1000ppm; supports eco-design compliance |
| Matte tin-plated leads | Guarantees solderability per MIL-STD-202, Method 208; prevents oxidation during reflow and long-term storage |
Applications
| Industrial Power Supply Input | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24V DC input stage of programmable logic controller (PLC) power supply exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary shunt TVS placed upstream of input filter capacitor and DC-DC converter. Use Value: Clamps 120V/10ms load dump transients to ≤48.4V, preventing damage to downstream rectifier and controller ICs. |
Use Scenario: CAN bus power line (VCC) in BCM subjected to battery reversal and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional overvoltage clamp on 12V rail feeding CAN transceivers and microcontroller peripherals. Use Value: Limits voltage excursions to safe levels during 24V jump-start events while maintaining <5μA leakage at nominal 12V operation. |
| Telecom Remote Radio Unit (RRU) | Renewable Energy Inverter DC Link |
Use Scenario: Outdoor base station RRU powered via PoE++ or DC feed, subject to induced lightning surges on copper pairs. IC Role / Device Role / Timing Role: Secondary-level TVS on DC input after primary gas discharge tube (GDT), providing fast-response clamping. Use Value: Responds within nanoseconds to clamp residual surges to <48.4V, protecting PoE controller and RF front-end ICs. |
Use Scenario: 600V DC link in solar string inverter exposed to grid-switching transients and partial shading-induced voltage spikes. IC Role / Device Role / Timing Role: Auxiliary clamping device across DC-link capacitors to limit overvoltage during rapid IGBT turn-off. Use Value: Absorbs up to 3000W for 10/1000μs, reducing stress on main DC-link capacitor and gate drivers during fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A (Diodes Inc.) | 600W PPK, same VRWM/VBR/VC but lower IPP (33.3A vs. 62.0A); SMB package (smaller footprint, lower thermal mass) | Lower energy handling limits use to sub-100W systems or secondary protection only | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 only (not 4-5) |
| 1.5SMCJ30A (ON Semiconductor) | Same 3000W rating and SMC package, but higher max clamping voltage (50.0V vs. 48.4V) and wider VBR tolerance (33.3–38.1V) | Marginally reduced protection margin for 3.3V/5V logic rails due to higher VC | Acceptable where 1.6V higher clamping is tolerable and second-source assurance is required |
Compared with SMBJ30A, the 3.0SMCJ30A-13 delivers >85% higher peak surge current capacity in the same SMC footprint; versus 1.5SMCJ30A, it offers tighter clamping control critical for protecting modern low-voltage microcontrollers.
Availability
3.0SMCJ30A-13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom remote radio units, and renewable energy inverters requiring stable component supply and full 3000W surge immunity.
Supply support for 3.0SMCJ30A-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio, engineered specifically for robust front-end surge protection in harsh industrial and automotive environments where reliability under repeated transient stress is mandatory.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ30A-13 under full-rated surge current?
The maximum clamping voltage (VC) is 48.4V at 62.0A peak pulse current (IPP), measured using the standardized 10/1000μs double-exponential waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and represents the highest voltage the protected circuit will experience during a worst-case 3000W transient event.
Is the 3.0SMCJ30A-13 suitable for bidirectional signal line protection?
No - the 3.0SMCJ30A-13 is a unidirectional TVS diode, identifiable by its cathode band marking. It conducts only during positive transients relative to its anode. For AC or bidirectional signal lines (e.g., RS-485, USB D+/D−), a bi-directional variant such as 3.0SMCJ30CA-13 must be used, which has symmetrical clamping in both polarities.
How does thermal derating affect the 3.0SMCJ30A-13's surge capability above +25°C ambient?
Per Figure 1 in DS30818, the device's peak pulse power derates linearly from 100% at +25°C to ~50% at +125°C ambient. At +100°C, it retains ~70% of its 3000W rating (≈2100W), meaning its clamping performance degrades proportionally - e.g., 62A IPP drops to ~43A. PCB layout with ≥8mm² copper land improves thermal dissipation and mitigates derating.
Does the 3.0SMCJ30A-13 meet automotive qualification requirements?
The standard 3.0SMCJ30A-13 is not AEC-Q200 qualified; however, Diodes offers automotive-grade equivalents with Q-suffix (e.g., 3.0SMCJ30AQ-13) that are PPAP-capable, manufactured in IATF 16949-certified facilities, and tested to AEC-Q200 stress requirements including temperature cycling, humidity bias, and mechanical shock.
3.0SMCJ30A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 62A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1700pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ30A-13 FAQ
1.How can I place an order for 3.0SMCJ30A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ30A-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 3.0SMCJ30A-13 reliable?
The price and inventory of 3.0SMCJ30A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ30A-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ30A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ30A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ30A-13?
3.0SMCJ30A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ30A-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 3.0SMCJ30A-13?
For technical support, including 3.0SMCJ30A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ30A-13 requirements.
6.How does Aetrix verify that 3.0SMCJ30A-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ30A-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 3.0SMCJ30A-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ30A-13?
All 3.0SMCJ30A-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ30A-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 3.0SMCJ30A-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ30A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ30A-13 Tags
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