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Diodes Incorporated 3.0SMCJ33CA-13
- Part No.:
- 3.0SMCJ33CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ33CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,386
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Product details
Overview
3.0SMCJ33CA-13 from Diodes Incorporated is a bi-directional 3000W surface-mount transient voltage suppressor (TVS) designed for robust 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, 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 3.0SMCJ33CA-13 datasheet, 3.0SMCJ33CA-13 pinout, 3.0SMCJ33CA-13 application, or 3.0SMCJ33CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under 10/1000μs waveform, bi-directional symmetry for AC-coupled lines, and SMC package thermal performance on 8mm² copper land.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transients exceeding VRWM = 33V, it avalanches to limit voltage across the protected node to ≤53.3V. Its glass-passivated junction ensures stable breakdown and low leakage (<5µA at VRWM).
The device sustains 3000W non-repetitive peak pulse power per 10×1000μs waveform and supports surge currents up to 56.3A. Thermal derating begins above +25°C ambient, with full power rated from –55°C to +150°C operating junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs surges without failure; defines maximum energy absorption capability |
| Reverse Standoff Voltage | 33.0V - maximum continuous DC or RMS voltage before significant leakage; sets minimum system operating voltage margin |
| Clamping Voltage | 53.3V @ 56.3A - maximum voltage seen by protected circuit during worst-case 10×1000μs transient; determines IC survivability |
| Breakdown Voltage | 36.7–40.6V @ 1.0mA - avalanche onset range; ensures reliable turn-on before clamping threshold is exceeded |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against human-handling and proximity discharge events |
| Operating Temperature | –55°C to +150°C - qualified for under-hood automotive, industrial motor drives, and outdoor power electronics |
Pinout & Package
Package: SMC (DO-214AB), surface-mount molded plastic body with matte tin-plated leads; UL 94V-0 rated; 0.21g mass; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side terminal (bi-directional) | Common connection point; symmetrical structure means either terminal serves as cathode or anode depending on transient polarity |
| Cathode | High-side terminal (bi-directional) | No polarity marking on 3.0SMCJ33CA-13; terminals are functionally identical for bidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse rating | Enables protection against high-energy lightning surges (IEC 61000-4-5 Level 4) on 24V/48V industrial buses |
| Bi-directional architecture | Eliminates polarity concerns in AC-coupled interfaces (e.g., RS-485, CAN FD bus stubs) and floating sensor inputs |
| Glass-passivated die | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift in harsh environments |
| RoHS-compliant & halogen-free | Meets IPC-1752A material declaration requirements for automotive and medical OEMs; <900ppm Br/Cl, <1000ppm Sb |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 48V DC input stage in variable-frequency drives against load dump and inductive kickback. IC Role / Device Role / Timing Role: Shunt TVS placed upstream of DC-DC converters and gate drivers to clamp transients before they propagate into control circuitry. Use Value: 53.3V clamping ensures MOSFETs with 60V VDSS remain within safe SOA during 10×1000μs surges up to 56.3A. |
Use Scenario: Surge suppression on -48V telecom power distribution boards feeding remote radio units. IC Role / Device Role / Timing Role: Bi-directional clamping element on primary DC rail to absorb both positive and negative polarity surges from long cable runs. Use Value: Symmetrical breakdown enables identical protection for reversed-polarity faults and lightning-induced common-mode spikes. |
| Automotive Body Control Modules | Industrial PLC Analog Inputs |
Use Scenario: Input protection for LIN bus transceivers and power window motor controllers exposed to battery line transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V supply pins, coordinated with downstream ceramic capacitors for fast response. Use Value: 30kV IEC-61000-4-2 ESD rating prevents latch-up or damage during assembly and field service handling. |
Use Scenario: Protection of 4–20mA current loop receiver circuits in hazardous-area process controllers. IC Role / Device Role / Timing Role: Low-leakage (≤5µA @ 33V) shunt device that avoids loading precision analog front-ends during normal operation. Use Value: Sub-5µA IR ensures <0.16mV offset error across 33Ω sense resistor, preserving 12-bit measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA-13 (Diodes Inc.) | Same 33V VRWM and bi-directional configuration but rated for 600W peak power (vs. 3000W); SMC vs. SMB package | Lower power rating suits low-energy ESD-only scenarios; insufficient for IEC 61000-4-5 Level 3+ surges | Select when board space is constrained and surge threat level is limited to HBM/CDM/IEC-4-2 only |
| 1.5SMCJ33CA (ON Semiconductor) | Identical 33V VRWM, 53.3V VC, and 3000W rating; same SMC package; minor differences in leakage (<10µA vs. <5µA) | Functionally interchangeable in most designs; validated for AEC-Q101 automotive qualification | Choose for automotive programs requiring AEC-Q101 documentation and PPAP support |
Compared with SMBJ33CA-13, the 3.0SMCJ33CA-13 delivers 5× higher surge energy handling for industrial lightning protection; versus 1.5SMCJ33CA, it offers tighter leakage control and Diodes' extended thermal derating curve above +25°C.
Availability
3.0SMCJ33CA-13 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, automotive body control modules, and PLC analog inputs requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ33CA-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 for industrial, automotive, and computing markets.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio, engineered specifically for IEC 61000-4-5 surge immunity in harsh-environment power systems where clamping voltage margin and thermal stability are critical.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ33CA-13 under standard test conditions?
The maximum clamping voltage (VC) is 53.3V, measured at 56.3A peak pulse current using the standardized 10×1000μs waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and represents the highest voltage imposed on the protected circuit during worst-case surge events.
Is the 3.0SMCJ33CA-13 unidirectional or bidirectional, and how is polarity indicated?
The 3.0SMCJ33CA-13 is a bi-directional TVS diode with symmetrical breakdown characteristics. Unlike unidirectional variants (e.g., 3.0SMCJ33A-13), it has no cathode band marking-both terminals are electrically identical, enabling protection against positive and negative polarity transients without orientation constraints.
Does this part meet automotive qualification standards such as AEC-Q101?
The 3.0SMCJ33CA-13 is not AEC-Q101 qualified; it is a commercial-grade device. Diodes offers automotive-qualified equivalents under the "Q-suffix" naming convention (e.g., 3.0SMCJ33CQ-13), which undergo additional stress testing, PPAP documentation, and manufacturing in IATF 16949-certified facilities.
How does the SMC package affect thermal performance in high-power surge conditions?
The SMC package provides superior thermal dissipation versus smaller packages like SMB or SOD-123: its 8.00mm² copper pad recommendation enables effective heat spreading, allowing the device to sustain full 3000W peak power at +25°C ambient and retain >50% power capability at +100°C ambient per the published derating curve.
3.0SMCJ33CA-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:
- -
- Bidirectional Channels:
- 1
- 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
3.0SMCJ33CA-13 FAQ
1.How can I place an order for 3.0SMCJ33CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ33CA-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 3.0SMCJ33CA-13 reliable?
The price and inventory of 3.0SMCJ33CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ33CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ33CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ33CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ33CA-13?
3.0SMCJ33CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ33CA-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 3.0SMCJ33CA-13?
For technical support, including 3.0SMCJ33CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ33CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ33CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ33CA-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 3.0SMCJ33CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ33CA-13?
All 3.0SMCJ33CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ33CA-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 3.0SMCJ33CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ33CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ33CA-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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