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Diodes Incorporated 3.0SMCJ28CA-13
- Part No.:
- 3.0SMCJ28CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ28CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:8,067
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Product details
Overview
3.0SMCJ28CA-13 from Diodes Incorporated is a bi-directional automotive-grade transient voltage suppressor (TVS) diode designed for ISO7637-2 and ISO10605 surge/ESD protection in vehicle power-line and signal-line circuits. It features 28 V reverse standoff voltage (VRWM), 45.4 V max clamping voltage (VC) at 66.1 A peak pulse current (IPP), and 3000 W peak pulse power dissipation.
For engineers reviewing the 3.0SMCJ28CA-13 datasheet, 3.0SMCJ28CA-13 pinout, 3.0SMCJ28CA-13 application, or 3.0SMCJ28CA-13 equivalent, this device is selected for high-energy transient suppression in 12 V/24 V automotive systems where AEC-Q101 qualification, IATF16949 manufacturing, and precise clamping performance under Pulse 1/2a/3a/3b waveforms are required.
Technical Context
This bi-directional TVS operates symmetrically across both polarities to clamp transients on unidirectional or bidirectional signal/power lines without polarity constraints. Its 3000 W peak pulse rating per 10 × 1000 µs waveform enables robust handling of ISO7637-2 Pulse 1 (−150 V), Pulse 2a (+112 V), Pulse 3a (−220 V), and Pulse 3b (+150 V) events.
It exhibits 31.1 V minimum breakdown voltage (VBR) at 1.0 mA test current and ≤2.0 µA reverse leakage at VRWM, ensuring low standby power loss and stable threshold behavior over −55 °C to +175 °C junction temperature range. The device is qualified to AEC-Q101 and manufactured in IATF16949-certified facilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 28.0 V - Maximum continuous reverse operating voltage before clamping begins; sets system-level overvoltage trip threshold for 12 V/24 V automotive bus monitoring. |
| VBR (min) | 31.1 V @ 1.0 mA - Guaranteed breakdown initiation point; ensures predictable turn-on margin above VRWM for reliable transient detection. |
| VC @ IPP | 45.4 V @ 66.1 A - Clamped voltage during 10 × 1000 µs surge; defines maximum stress imposed on downstream ICs during worst-case ISO7637-2 Pulse 3a. |
| PPK | 3000 W - Peak pulse power capability; supports single-event energy absorption up to 3 J (calculated from 3000 W × 1 ms), sufficient for automotive load-dump immunity. |
| IFSM | 300 A @ 8.3 ms - Non-repetitive forward surge current rating; validates survivability against short-duration battery-spike events in alternator-regulated systems. |
| TJ Range | −55 °C to +175 °C - Extended junction temperature range; enables placement near high-heat sources (e.g., engine control units, power inverters) without derating. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; moisture sensitivity level 1 per J-STD-020; weight ≈ 0.21 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band (Marked End) | Anode Terminal (Bi-directional) | Identifies terminal polarity for uni-directional variants; for 3.0SMCJ28CA-13, both terminals are functionally symmetric-no anode/cathode distinction in operation. |
| Opposite End | Cathode Terminal (Bi-directional) | Second terminal forms symmetrical clamping path; enables installation without orientation concern on PCB for differential or AC-coupled lines. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-event suppression of high-energy transients (e.g., ISO7637-2 Pulse 3a −220 V) without failure, reducing need for cascaded protection stages. |
| AEC-Q101 qualified & PPAP capable | Validates reliability for automotive safety-critical ECUs and ADAS modules; supports full production traceability and change control per IATF16949 requirements. |
| Bi-directional clamping symmetry | Eliminates polarity-sensitive layout constraints on CAN, LIN, or sensor signal lines; simplifies routing and reduces BOM count versus dual-unidirectional solutions. |
| RoHS 3 & Halogen-free "Green" construction | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb; supports end-of-life recycling and OEM environmental compliance programs. |
Applications
| Engine Control Unit (ECU) Power Input | Automotive CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of engine control unit against load dump and alternator switching transients per ISO7637-2 Pulse 1 and Pulse 2a. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converter input; responds within nanoseconds to limit voltage excursion below 45.4 V. Use Value: Prevents latch-up or permanent damage to MCU power management ICs by holding rail voltage within safe operating area during −150 V Pulse 1 events. |
Use Scenario: Shields high-speed CAN FD transceivers (e.g., TJA1044) from ESD strikes and coupled noise on differential bus lines per ISO10605 (±30 kV air/contact discharge). IC Role / Device Role / Timing Role: Bi-directional shunt protector across CANH–CANL; clamps common-mode surges while preserving signal integrity up to 5 Mbps. Use Value: Maintains bus uptime during factory handling or roadside ESD events without requiring bus reset or node reinitialization. |
| Body Control Module (BCM) Sensor Interface | ADAS Camera Power Line Protection |
Use Scenario: Safeguards analog inputs (e.g., temperature, pressure sensors) connected to BCM against induced transients from nearby relay coils or motor drivers. IC Role / Device Role / Timing Role: Low-leakage (≤2.0 µA @ 28 V) parallel suppressor; minimizes DC offset error on precision ratiometric sensor bridges. Use Value: Ensures sensor accuracy remains within ±0.5% full-scale drift budget even after repeated 10 kV ESD exposure cycles. |
Use Scenario: Secures 12 V power feed to 77 GHz radar or surround-view camera modules against ignition noise and battery disconnection spikes. IC Role / Device Role / Timing Role: Front-end transient limiter before LDO regulator; withstands 300 A surge current per ISO7637-2 Pulse 3b without thermal runaway. Use Value: Extends camera module MTBF beyond 15,000 hours in harsh under-hood environments by preventing cumulative dielectric degradation. |
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 |
|---|---|---|---|
| SMBJ28CA-13 (Diodes Inc.) | Lower peak power (600 W vs. 3000 W); same VRWM, VC, and package footprint but reduced IFSM (100 A vs. 300 A). | Suitable only for low-energy signal-line protection (e.g., LIN, USB); insufficient for power-rail load-dump immunity. | Select when space-constrained layouts require SMB footprint and surge energy is limited to ISO10605-level ESD only. |
| 1.5SMCJ28CA (ON Semiconductor) | Same 3000 W rating and SMC package, but not AEC-Q101 qualified; higher VC (47.0 V) and lower TJ max (+150 °C vs. +175 °C). | Lacks PPAP documentation and IATF16949 traceability; unsuitable for Tier-1 automotive production programs requiring full audit trail. | Acceptable for industrial or commercial automotive-adjacent designs where qualification rigor is relaxed. |
Compared with SMBJ28CA-13 and 1.5SMCJ28CA, the 3.0SMCJ28CA-13 uniquely delivers AEC-Q101 validation, +175 °C operation, and lowest clamping voltage (45.4 V) among SMC-packaged 28 V bi-directional TVS diodes-making it the only choice for safety-critical 12 V/24 V power-line protection in certified ECU designs.
Availability
3.0SMCJ28CA-13 is available at Aetrix Electronics and suitable for automotive ECU power input protection, CAN bus transceiver safeguarding, body control module sensor interface conditioning, and ADAS camera power line hardening requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ28CA-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, computing, and consumer markets, with design centers across Asia, Europe, and North America.
This device belongs to Diodes' AEC-Q101-qualified 3.0SMCJ series of high-power TVS diodes, engineered specifically for automotive transient immunity compliance-targeting ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD robustness in harsh vehicular environments.
FAQ
What is the clamping voltage of 3.0SMCJ28CA-13 at its rated peak pulse current?
The maximum clamping voltage (VC) is 45.4 V measured at 66.1 A peak pulse current (IPP) under the standardized 10 × 1000 µs waveform per Figure 4 in DS40742 Rev. 12–2. This value is guaranteed across −55 °C to +175 °C operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Is 3.0SMCJ28CA-13 unidirectional or bi-directional, and how is polarity identified?
3.0SMCJ28CA-13 is a bi-directional TVS diode, indicated by the "C" suffix in the part number. Unlike unidirectional variants, it has no functional anode/cathode distinction-both terminals behave identically under positive or negative transients. The cathode band marking is retained for mechanical alignment consistency with unidirectional SMC devices but carries no electrical polarity significance.
Does this device meet automotive qualification standards?
Yes, 3.0SMCJ28CA-13 is AEC-Q101 qualified, PPAP capable, and manufactured in IATF16949-certified facilities. It complies with ISO7637-2 (Pulse 1, 2a, 3a, 3b) and ISO10605 (±30 kV air/contact discharge) test requirements, and its qualification data is documented in Diodes' official product definitions portal.
What is the recommended PCB pad layout for optimal thermal and surge performance?
Diodes specifies mounting on 8.00 mm² (0.013 mm thick) copper land areas per terminal to achieve rated IFSM (300 A) and PPK (3000 W). The SMC outline drawing (document DS40742 page 5) defines pad dimensions: 7.75–8.13 mm length (E), 5.59–6.22 mm width (A), and 2.00–2.50 mm terminal spacing (J); thermal vias under pads are strongly recommended for sustained surge duty.
3.0SMCJ28CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 66.1A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ28CA-13 FAQ
1.How can I place an order for 3.0SMCJ28CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ28CA-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 3.0SMCJ28CA-13 reliable?
The price and inventory of 3.0SMCJ28CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ28CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ28CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ28CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ28CA-13?
3.0SMCJ28CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ28CA-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 3.0SMCJ28CA-13?
For technical support, including 3.0SMCJ28CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ28CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ28CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ28CA-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 3.0SMCJ28CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ28CA-13?
All 3.0SMCJ28CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ28CA-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 3.0SMCJ28CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ28CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ28CA-13 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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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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