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Diodes Incorporated 3.0SMCJ33A-13
- Part No.:
- 3.0SMCJ33A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ33A-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,460
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Product details
Overview
3.0SMCJ33A-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 33V reverse standoff voltage (VRWM), 53.3V maximum clamping voltage (VC) at 56.3A peak pulse current (IPP), and IEC-61000-4-2 ESD rating of 30kV (air/contact). It is used in industrial power supplies to protect downstream DC-DC converters from lightning-induced surges.
For engineers reviewing the 3.0SMCJ33A-13 datasheet, 3.0SMCJ33A-13 pinout, 3.0SMCJ33A-13 application, or 3.0SMCJ33A-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability 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 silicon avalanche diode with glass-passivated die construction, enabling fast response (<1 ps) to transients and stable breakdown behavior across temperature. Its unidirectional configuration provides asymmetric clamping-low forward voltage during normal operation and sharp reverse avalanche conduction during overvoltage events.
The device complies with JEDEC high-reliability standards and supports automotive-grade qualification via Q-suffix variants. Its 8.3ms half-sine surge rating (300A IFSM) and 3000W PPK make it suitable for Level 4 IEC 61000-4-5 surge immunity testing in industrial equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10/1000μs surges up to 56.3A without failure |
| Reverse Standoff Voltage | 33V - maximum continuous DC voltage before leakage exceeds 5μA |
| Clamping Voltage | 53.3V @ 56.3A - limits transient voltage seen by protected circuitry |
| Breakdown Voltage | 36.7–40.6V @ 1mA - ensures reliable avalanche initiation within spec |
| ESD Rating | 30kV air / 30kV contact - meets IEC-61000-4-2 Level 4 immunity |
| Operating Temp Range | −55°C to +150°C - supports deployment in harsh industrial environments |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating. Terminals are matte tin-plated leads, solderable per MIL-STD-202, Method 208. Uni-directional polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; defines conduction direction |
| Cathode | High-side surge input terminal | Connected to protected line; avalanche conduction occurs from cathode to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable breakdown voltage and long-term reliability under repeated surge stress |
| 3000W peak pulse rating | Provides robust protection against IEC 61000-4-5 4kV surge events on 48V DC bus lines |
| Lead-free & RoHS-compliant | Meets EU Directive 2015/863/EU with <900ppm Br/Cl and <1000ppm Sb |
| Moisture sensitivity Level 1 | Eliminates bake requirements prior to reflow; compatible with standard SMT assembly |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24V/48V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC-DC converter input capacitor to limit transient voltage to ≤53.3V. Use Value: Prevents damage to 60V-rated input MOSFETs and reduces need for oversized bulk capacitance. |
Use Scenario: CAN-FD data line protection in BCM where ESD events occur during connector mating/unmating. IC Role / Device Role / Timing Role: Unidirectional TVS shunting ESD energy away from CAN transceiver I/O pins. Use Value: Maintains signal integrity by clamping to 53.3V while adding <0.5pF parasitic capacitance. |
| Telecom Remote Radio Unit (RRU) | Renewable Energy Inverter DC Link |
Use Scenario: -48V DC power feed protection in outdoor RRU enclosures subject to lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense against 10/1000μs surges coupled onto telecom power bus. Use Value: Withstands 3000W pulses without degradation, enabling compliance with GR-1089-CORE Level 3 surge immunity. |
Use Scenario: DC link overvoltage suppression in solar string inverters during rapid grid disconnection events. IC Role / Device Role / Timing Role: Parallel-connected TVS limiting DC link voltage excursion during regenerative braking or islanding. Use Value: Clamps 33V nominal bus to 53.3V max, protecting 65V-rated IGBT gate drivers and bus capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A (Diodes Inc.) | Lower 600W PPK, same VRWM/VC but 12.5A IPP; SMB package (smaller footprint, lower thermal mass) | Suitable for lower-energy surges (IEC 61000-4-2 only); not rated for IEC 61000-4-5 Level 4 | Select when space-constrained and surge threat level is limited to ESD/lightning-induced coupling |
| 1.5SMCJ33A (ON Semiconductor) | Same 3000W rating and 33V/53.3V specs; identical SMC package; minor differences in leakage (<5μA vs. 5μA) and HBM rating (15kV vs. 8kV) | Drop-in replacement with identical board layout and thermal profile; qualified to AEC-Q101 | Prefer for automotive programs requiring AEC-Q101 documentation and PPAP support |
Compared with SMBJ33A, the 3.0SMCJ33A-13 delivers 5× higher surge energy handling for infrastructure-grade protection; versus 1.5SMCJ33A, it offers tighter process control on VBR (±5% vs. ±6%) and superior ESD robustness in non-automotive industrial use cases.
Availability
3.0SMCJ33A-13 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, telecom remote radio units, and renewable energy inverter DC links requiring stable component supply and full traceability.
Supply support for 3.0SMCJ33A-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 industrial and automotive surge immunity compliance-emphasizing low clamping ratio, repeatable avalanche performance, and extended temperature reliability.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ33A-13 under a 10/1000μs surge?
The maximum clamping voltage is 53.3V at 56.3A peak pulse current, measured per the 10 × 1000μs waveform defined in Figure 2 of DS30818. This value is guaranteed across the full operating temperature range (−55°C to +150°C) and represents the upper bound of voltage imposed on protected circuitry during worst-case surge conditions.
Is the 3.0SMCJ33A-13 suitable for bidirectional signal line protection?
No-it is a unidirectional TVS diode, identified by the cathode band marking and specified only for DC or single-polarity AC applications. For bidirectional protection (e.g., RS-485, USB D+/D−), the bi-directional variant 3.0SMCJ33CA-13 must be used, which has symmetric clamping in both polarities and no polarity indicator.
Does this part meet AEC-Q200 requirements for passive components?
The 3.0SMCJ33A-13 is not AEC-Q200 qualified; however, Diodes offers automotive-grade equivalents with Q-suffix (e.g., 3.0SMCJ33AQ-13) that are qualified to AEC-Q101, manufactured in IATF 16949-certified facilities, and PPAP-capable. These variants undergo additional stress testing including temperature cycling and humidity bias HAST.
How does thermal derating affect its 3000W rating above +25°C ambient?
Per Figure 1 in DS30818, the peak pulse power derates linearly: at +85°C ambient, the usable PPK drops to ~75% (2250W); at +125°C, it falls to ~45% (1350W). Derating applies to both power and peak current (IPP), and PCB copper area (8.00 mm² recommended) directly impacts achievable thermal performance.
3.0SMCJ33A-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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 56.3A
- 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
3.0SMCJ33A-13 FAQ
1.How can I place an order for 3.0SMCJ33A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ33A-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 3.0SMCJ33A-13 reliable?
The price and inventory of 3.0SMCJ33A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ33A-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ33A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ33A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ33A-13?
3.0SMCJ33A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ33A-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 3.0SMCJ33A-13?
For technical support, including 3.0SMCJ33A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ33A-13 requirements.
6.How does Aetrix verify that 3.0SMCJ33A-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ33A-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 3.0SMCJ33A-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ33A-13?
All 3.0SMCJ33A-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ33A-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 3.0SMCJ33A-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ33A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ33A-13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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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Diodes Incorporated
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