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Diodes Incorporated 3.0SMCJ24A-13
- Part No.:
- 3.0SMCJ24A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ24A-13.pdf
- Description:
- TVS DIODE 24VWM 38.9VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,900
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Product details
Overview
3.0SMCJ24A-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 24V reverse standoff voltage (VRWM), 26.7–29.5V breakdown range at 1mA, clamps transients to ≤38.9V at 77.1A peak pulse current, and meets IEC-61000-4-2 ESD immunity (30kV air/30kV contact). It is used in industrial power supplies, automotive body control modules, and PoE-powered equipment.
For engineers reviewing the 3.0SMCJ24A-13 datasheet, 3.0SMCJ24A-13 pinout, 3.0SMCJ24A-13 application, or 3.0SMCJ24A-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 junction, triggered when transient voltage exceeds its specified breakdown threshold. Its unidirectional configuration provides forward conduction only during negative transients (cathode-biased), requiring correct polarity placement across protected lines.
Clamping performance is defined per 10×1000μs standard waveform (IEC 61000-4-5), with 3000W peak pulse power dissipation rated at TA = +25°C and derated linearly above that temperature. It supports surge currents up to 300A (8.3ms half-sine) but is optimized for repetitive ESD and lightning-induced surges in low-inductance PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs transients without failure under specified mounting conditions |
| Reverse Standoff Voltage (VRWM) | 24V - maximum continuous DC or RMS voltage before significant leakage; sets minimum operating rail margin |
| Breakdown Voltage (VBR) | 26.7–29.5V @ 1mA - guaranteed avalanche initiation window; ensures reliable turn-on before downstream IC damage |
| Clamping Voltage (VC) | ≤38.9V @ 77.1A - maximum voltage seen by protected circuit during full-rated surge; defines safe headroom for 3.3V/5V/24V systems |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - qualifies for direct interface protection in handheld and exposed I/O designs |
| Operating Temperature | −55°C to +150°C - supports under-hood automotive, industrial motor drives, and outdoor telecom applications |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; weight ≈0.21g; moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential rail; forms cathode-to-anode clamping path during positive transients |
| Cathode | High-side input terminal | Connected to protected line; marked with cathode band; conducts avalanche current into anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4kV line-to-earth) without derating in compact SMC footprint |
| Glass-passivated die construction | Ensures stable VBR and low leakage (<5µA at VRWM) over lifetime and temperature cycling |
| RoHS-compliant matte tin plating | Guarantees solderability per MIL-STD-202 Method 208 and eliminates lead-based reflow concerns |
| Halogen- and antimony-free "Green" design | Meets automotive and EU environmental mandates (Br+Cl <1500ppm, Sb <1000ppm) without compromising surge reliability |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24V DC input stage against load dump and inductive kickback from solenoids and relays. IC Role / Device Role: Primary clamping device placed upstream of DC-DC converters and microcontroller power inputs. Use Value: Limits transient voltage to ≤38.9V, preserving 40V-rated input capacitors and preventing brownout resets in MCU subsystems. |
Use Scenario: Guarding LIN bus transceivers and sensor supply lines against battery clamp transients and ESD events. IC Role / Device Role: Unidirectional TVS on VBAT-to-ground path, leveraging cathode-band orientation for polarity-critical placement. Use Value: Withstands 30kV contact ESD and clamps 100A surges to <40V, ensuring ISO 10605 compliance without additional filtering. |
| Telecom Power over Ethernet (PoE) | Programmable Logic Controller (PLC) I/O Cards |
Use Scenario: Secondary surge suppression on 48V PSE side of IEEE 802.3af/at compliant switches. IC Role / Device Role: Parallel-connected TVS on data pair and power pair inputs to absorb common-mode surges before magnetics. Use Value: 3000W rating handles combined differential + common-mode surges per IEC 61000-4-5, reducing need for multi-stage protection. |
Use Scenario: Input protection for 24V digital input channels exposed to field wiring faults and induced lightning surges. IC Role / Device Role: SMC-mounted TVS directly at terminal block entry point, minimizing trace inductance before optocoupler isolation. Use Value: Clamping at 38.9V ensures compatibility with 30V-rated input conditioning circuits while surviving 2kA 8/20μs test pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A (Diodes Inc.) | Lower 600W peak power; same VRWM and VC, but IPP = 15.4A vs. 77.1A | Suitable for ESD-only or low-energy surge zones; insufficient for IEC 61000-4-5 Level 3+ | Select when board space is constrained and surge threat level is limited to HBM/CDM/IEC-4-2 only. |
| 1.5SMCJ24A (ON Semiconductor) | Same 3000W rating and SMC package; VRWM = 24V, VC = 38.9V, but VBR min = 26.7V (identical); RoHS-compliant but not halogen-free | Drop-in replacement in non-automotive industrial use; lacks Diodes' "Green" certification for Tier-1 automotive sourcing | Choose when cost optimization is prioritized and halogen-free compliance is not required by end-customer spec. |
Compared with SMBJ24A, the 3.0SMCJ24A-13 delivers 5× higher surge current handling for high-risk environments; versus 1.5SMCJ24A, it offers identical electrical performance with stricter environmental compliance-critical for automotive PPAP submissions and green procurement policies.
Availability
3.0SMCJ24A-13 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, Telecom Power over Ethernet (PoE), and programmable logic controller (PLC) I/O cards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 3.0SMCJ24A-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 primary-level surge immunity in harsh environments where 3000W clamping and AEC-Q200-aligned reliability are mandatory.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ24A-13 under full-rated surge current?
The maximum clamping voltage (VC) is 38.9V at 77.1A peak pulse current, measured per the 10×1000μs waveform defined in IEC 61000-4-5. This value is guaranteed across the full operating temperature range (−55°C to +150°C) and represents the highest voltage imposed on the protected circuit during worst-case surge conditions.
Is the 3.0SMCJ24A-13 suitable for bidirectional signal line protection?
No - the 3.0SMCJ24A-13 is unidirectional and features a cathode band marking. It conducts only during positive transients on the cathode terminal. For bidirectional protection (e.g., RS-485, USB, or AC lines), the bi-directional variant 3.0SMCJ24CA-13 must be used, which has no polarity indicator and symmetrical clamping in both directions.
How does thermal derating affect the 3.0SMCJ24A-13's surge capability above +25°C ambient?
Per Figure 1 in DS30818 Rev. 18, the device's peak pulse power and current ratings decrease linearly above +25°C: at +85°C ambient, it retains ~70% of its 3000W rating (≈2100W), and at +125°C, ~45% (≈1350W). Designers must apply this derating when placing the device near heat sources or in sealed enclosures without forced airflow.
Does the 3.0SMCJ24A-13 meet automotive qualification standards?
The standard 3.0SMCJ24A-13 is not AEC-Q200 qualified. However, Diodes offers automotive-grade equivalents with Q-suffix (e.g., 3.0SMCJ24AQ-13), manufactured in IATF 16949-certified facilities and tested to AEC-Q200 stress requirements. These variants include PPAP documentation and change control for automotive production programs.
3.0SMCJ24A-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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 77.1A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 3000pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ24A-13 FAQ
1.How can I place an order for 3.0SMCJ24A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ24A-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 3.0SMCJ24A-13 reliable?
The price and inventory of 3.0SMCJ24A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ24A-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ24A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ24A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ24A-13?
3.0SMCJ24A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ24A-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 3.0SMCJ24A-13?
For technical support, including 3.0SMCJ24A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ24A-13 requirements.
6.How does Aetrix verify that 3.0SMCJ24A-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ24A-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 3.0SMCJ24A-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ24A-13?
All 3.0SMCJ24A-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ24A-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 3.0SMCJ24A-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ24A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ24A-13 Tags
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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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Diodes Incorporated
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Diodes Incorporated
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