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Diodes Incorporated 3.0SMCJ170CA-13
- Part No.:
- 3.0SMCJ170CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ170CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,039
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Product details
Overview
3.0SMCJ170CA-13 from Diodes Incorporated is a bi-directional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It delivers 3000W peak pulse power dissipation at 10×1000μs waveform, features a 170V reverse standoff voltage (VRWM), 275V maximum clamping voltage (VC) at 10.9A peak pulse current (IPP), and meets IEC-61000-4-2 ESD immunity (30kV air/contact). It is used in industrial power supplies to protect downstream DC-DC converters from lightning-induced surges.
For engineers reviewing the 3.0SMCJ170CA-13 datasheet, 3.0SMCJ170CA-13 pinout, 3.0SMCJ170CA-13 application, or 3.0SMCJ170CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, VRWM derating at operating temperature, SMC package thermal performance under repetitive surge conditions, and bi-directional symmetry for AC-coupled or floating bus protection.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias it presents <5μA leakage at 170V; during transients exceeding breakdown (189–208.9V @ 1mA), it avalanches to clamp voltage ≤275V. Its glass-passivated junction ensures stable breakdown and low capacitance (<100pF typical).
The device uses a bi-directional symmetrical structure with no polarity marking, enabling use on AC lines or differential buses without orientation concerns. Thermal derating follows JEDEC J-STD-020 Level 1 moisture sensitivity and supports continuous operation from –55°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W (per 10×1000μs waveform; defines maximum single-event surge energy absorption) |
| Reverse Standoff Voltage (VRWM) | 170V (maximum continuous DC or RMS voltage before significant leakage; sets upper limit for protected circuit operating voltage) |
| Breakdown Voltage (VBR) | 189–208.9V @ 1mA (avalanche initiation range; determines turn-on threshold under fast transients) |
| Clamping Voltage (VC) | 275V @ 10.9A IPP (voltage seen by protected circuit during worst-case surge; must stay below downstream IC absolute max rating) |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 (enables direct port-level ESD protection without external spark gaps) |
| Operating Temperature | –55°C to +150°C (supports under-hood automotive, industrial motor drives, and outdoor telecom equipment) |
| Package | SMC (surface-mount; 7.75–8.13mm length × 5.59–6.22mm width × 2.75–3.18mm height; enables high-current PCB trace routing) |
Pinout & Package
Package: SMC (Surface-Mount Case), molded plastic UL 94V-0, 0.21g weight, matte tin-plated leads solderable per MIL-STD-202 Method 208. Bi-directional construction has no polarity indicator - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (Bi-dir) | Surge Current Path | Both terminals conduct identically during positive or negative transients; no orientation required during placement |
| Case / Body | Thermal Interface | Exposed copper pad area (6.90×4.40mm recommended) provides primary heat path to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| 3000W Peak Pulse Power | Enables protection against IEC 61000-4-5 Level 4 (4kV line-to-earth) surges without cascaded protection stages |
| Bi-Directional Symmetry | Eliminates polarity-check step in automated assembly and supports AC-coupled data lines (e.g., RS-485, CAN FD) |
| 275V Clamping at 10.9A | Provides ≥15% margin below 320V-rated DC-DC input capacitors in 24/48V industrial systems |
| IEC-61000-4-2 ESD Robustness | Withstands repeated 30kV contact discharges-critical for field-serviceable ports and human-accessible connectors |
| JEDEC High-Reliability Qualification | Qualified to AEC-Q200 stress test standards; suitable for mission-critical industrial control and transportation electronics |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) Bus Protection |
|---|---|
|
Use Scenario: 48V DC input stage of programmable logic controller (PLC) power supply exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary shunt clamp limiting transient voltage to <275V during 100A/10ms surges. Use Value: Prevents damage to upstream rectifier diodes and downstream buck controller ICs rated for 300V absolute maximum. |
Use Scenario: CAN FD physical layer interface in BCM, subjected to ESD events during connector mating/unmating. IC Role / Device Role: Fast-response bi-directional clamp on CANH/CANL differential pair. Use Value: Maintains signal integrity by clamping ESD transients within 1ns while adding <0.3pF parasitic capacitance per line. |
| Telecom Remote Radio Unit (RRU) DC Feed Line | Renewable Energy Inverter DC Link Monitoring |
|
Use Scenario: -48V DC power feed to outdoor 5G RRU, vulnerable to induced lightning surges on long cable runs. IC Role / Device Role: First-stage overvoltage protector before DC-DC isolation stage. Use Value: Absorbs 3000W surge energy without degradation, enabling compliance with ITU-T K.20/21 lightning immunity requirements. |
Use Scenario: Voltage sensing circuit across 1000V DC link in solar inverter, requiring protection against switching transients. IC Role / Device Role: Precision clamping element limiting sensed node excursion to safe levels for 3.3V ADC input. Use Value: Delivers 275V clamping with ±1.5% VBR tolerance, ensuring accurate fault detection without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA-13 | Same VRWM and VC, but 600W PPK rating (SMB package) | Lower surge capacity; suitable only for IEC-61000-4-5 Level 2 (2kV) environments | Select when board space is constrained and surge threat level is moderate |
| 1.5SMC170CA | Same VRWM and VC, but 1500W PPK (older SMC variant with higher leakage) | Higher IR (10μA vs. 5μA) reduces efficiency in high-impedance bias networks | Prefer only if legacy qualification or cost sensitivity outweighs 2× power margin |
Compared with SMBJ170CA-13 and 1.5SMC170CA, the 3.0SMCJ170CA-13 provides double the surge energy handling in the same SMC footprint, enabling single-stage protection where dual-stage designs would otherwise be needed-reducing BOM count and PCB area without compromising clamping accuracy or thermal stability.
Availability
3.0SMCJ170CA-13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom infrastructure, and renewable energy inverters requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ170CA-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 centers and manufacturing facilities across Asia and the Americas.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio, engineered specifically for robust front-end surge protection in harsh-environment applications including industrial automation, automotive subsystems, and outdoor communications equipment.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ170CA-13 under full-rated surge current?
The maximum clamping voltage is 275V measured at 10.9A peak pulse current (IPP) using the standardized 10×1000μs waveform per 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 transient events.
Is the 3.0SMCJ170CA-13 unidirectional or bidirectional, and how is polarity identified?
The 3.0SMCJ170CA-13 is a bi-directional TVS diode with symmetrical avalanche characteristics in both polarities. It has no cathode band or polarity marking-both terminals are electrically identical, simplifying layout and eliminating orientation errors during automated placement.
Can this TVS be used in parallel to increase surge current handling?
No-parallel connection is not recommended due to inherent VBR mismatch between units, which causes uneven current sharing and potential thermal runaway. For higher current capability, select a single higher-rated device such as the 5.0SMCJ170CA-13 (5000W) or verify matched-bin devices with <1% VBR spread under application-specific surge conditions.
Does the 3.0SMCJ170CA-13 meet automotive qualification standards?
The standard 3.0SMCJ170CA-13 is not AEC-Q200 qualified; however, Diodes offers automotive-grade variants with Q-suffix (e.g., 3.0SMCJ170CAQ-13) that are PPAP-capable, manufactured in IATF 16949-certified facilities, and tested to AEC-Q200 stress requirements for temperature cycling, humidity, and mechanical shock.
3.0SMCJ170CA-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):
- 170V
- Voltage - Breakdown (Min):
- 189V
- Voltage - Clamping (Max) @ Ipp:
- 275V
- Current - Peak Pulse (10/1000µs):
- 10.9A
- 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
3.0SMCJ170CA-13 FAQ
1.How can I place an order for 3.0SMCJ170CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ170CA-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 3.0SMCJ170CA-13 reliable?
The price and inventory of 3.0SMCJ170CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ170CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ170CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ170CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ170CA-13?
3.0SMCJ170CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ170CA-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 3.0SMCJ170CA-13?
For technical support, including 3.0SMCJ170CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ170CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ170CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ170CA-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 3.0SMCJ170CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ170CA-13?
All 3.0SMCJ170CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ170CA-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 3.0SMCJ170CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ170CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ170CA-13 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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