Diodes Incorporated 3.0SMCJ6.5CA-13
- Part No.:
- 3.0SMCJ6.5CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ6.5CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
3.0SMCJ6.5CA-13 from Diodes Incorporated is a bi-directional 3000W surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 6.5V reverse standoff voltage (VRWM), 11.2V maximum clamping voltage (VC) at 267.9A peak pulse current (IPP), and meets IEC-61000-4-2 ESD immunity (30kV air/30kV contact). It is used in automotive infotainment power inputs, industrial PLC I/O modules, and PoE-powered Ethernet switches.
For engineers reviewing the 3.0SMCJ6.5CA-13 datasheet, 3.0SMCJ6.5CA-13 pinout, 3.0SMCJ6.5CA-13 application, or 3.0SMCJ6.5CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, peak pulse current handling under IEC 61000-4-5 surge waveforms, bi-directional symmetry for AC-coupled or floating lines, and SMC package thermal performance under sustained transients.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical breakdown (7.22–7.98V) and clamping (11.2V) characteristics in either direction. Its glass-passivated junction ensures stable leakage (<500µA at VRWM) and repeatable avalanche response across temperature (-55°C to +150°C).
The device complies with IEC-61000-4-2 Level 4 ESD (30kV air/30kV contact) and supports high-reliability applications via JEDEC-qualified construction. It is not AEC-Q200 qualified by default but shares process and qualification foundations with automotive-grade Q-suffix variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10/1000µs surges up to 267.9A without failure |
| Reverse Standoff Voltage (VRWM) | 6.5V - maximum continuous DC or RMS voltage before significant leakage |
| Clamping Voltage (VC) | 11.2V @ 267.9A - limits transient voltage seen by downstream circuitry during surge events |
| Breakdown Voltage (VBR) | 7.22–7.98V @ 10mA - defines onset of controlled avalanche conduction |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against human-handling electrostatic discharge |
| Operating Temperature | -55°C to +150°C - supports under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; dimensions: 7.11mm × 6.22mm × 2.75mm (L × W × H); weight ≈ 0.21g; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Transient current entry (negative polarity) | Conducts during negative-going surges; forms symmetrical path with cathode |
| Cathode (K) | Transient current entry (positive polarity) | Conducts during positive-going surges; no polarity marking on bi-directional variant |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping symmetry | Identical VBR and VC in both polarities - enables protection of AC-coupled, differential, or floating signal paths without polarity concerns |
| Glass-passivated die | Stable leakage (<500µA at VRWM) and repeatable breakdown over 1000+ surge cycles - critical for long-life industrial deployments |
| 3000W peak pulse rating | Handles IEC 61000-4-5 combination wave (2Ω/12Ω, 1kV/2kV) without degradation - suitable for primary-level surge suppression |
| RoHS-compliant & halogen-free | Meets EU RoHS 3 and "Green" definition (<900ppm Br, <900ppm Cl, <1000ppm Sb) - supports eco-design and export compliance |
Applications
| Automotive Infotainment Power Input | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting 5V/12V power rails feeding head unit microcontrollers and audio codecs against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDOs and PMICs; responds within nanoseconds to limit rail excursion. Use Value: Clamps to 11.2V during 267.9A surge, preserving downstream 12V-rated ICs while surviving repeated ISO 7637-2 pulses. |
Use Scenario: Safeguarding 24V digital input channels in programmable logic controllers exposed to inductive switching noise and field wiring surges. IC Role / Device Role / Timing Role: Front-end transient shunt on isolated input optocoupler supply; absorbs energy before isolation barrier. Use Value: Bi-directional symmetry handles both positive and negative transients from relay coil flyback, eliminating need for dual unidirectional devices. |
| PoE-Powered Ethernet Switch Ports | Medical Patient Monitor Signal Lines |
Use Scenario: Protecting 48V DC power pairs (PSE/PD side) in IEEE 802.3af/at/bt compliant switches against cable-induced surges and hot-plug transients. IC Role / Device Role / Timing Role: Secondary surge limiter after primary gas discharge tube (GDT); provides fast, low-clamp backup protection. Use Value: 11.2V clamping ensures safe operation of PoE interface controllers rated to 57V max, meeting EN 61000-4-5 Level 3 requirements. |
Use Scenario: Shielding analog front-end inputs (ECG, SpO₂) from ESD events during clinical handling and defibrillation recovery spikes. IC Role / Device Role / Timing Role: Low-capacitance (<100pF typical) bi-directional clamp on differential sensor traces; preserves signal integrity. Use Value: 30kV IEC-61000-4-2 contact ESD rating prevents latch-up or damage to precision op-amps and ADC drivers in Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-13 (Diodes Inc.) | Lower peak power (600W), same VRWM/VC, SMB package (smaller footprint, lower thermal mass) | Suitable only for secondary/signal-level protection; insufficient for 1kV/2kA IEC 61000-4-5 surges | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only. |
| 1.5SMCJ6.5CA (onsemi) | Same 3000W rating and SMC package, but higher IR (1000µA @ VRWM) and slightly higher VC (11.5V) | Acceptable where 0.3V higher clamping is tolerable and legacy onsemi sourcing is preferred | Choose for cross-supplier redundancy if Diodes' lead times are extended; verify layout compatibility with minor dimension variances. |
Compared with SMBJ6.5CA-13, this part delivers 5× higher surge energy handling for primary rail protection; versus 1.5SMCJ6.5CA, it offers tighter clamping and lower leakage-critical for low-voltage, high-precision systems.
Availability
3.0SMCJ6.5CA-13 is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial PLC digital I/O protection, and PoE-powered Ethernet switch ports requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ6.5CA-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.
This device belongs to the 3.0SMCJ series of high-power TVS diodes engineered for primary-level surge suppression in harsh environments-designed to replace older 1.5kW families while maintaining SMC footprint compatibility.
FAQ
What is the difference between 3.0SMCJ6.5CA-13 and 3.0SMCJ6.5A-13?
The "C" in 3.0SMCJ6.5CA-13 denotes bi-directional configuration, meaning it clamps symmetrically for both positive and negative transients. In contrast, 3.0SMCJ6.5A-13 is uni-directional and features a cathode band marking; its reverse breakdown occurs only in one polarity, making it unsuitable for AC or floating-line protection without additional components.
Can this TVS be used in parallel to increase surge current handling?
No-parallel connection of TVS diodes is not recommended due to parameter mismatch (VBR tolerance ±5%) causing current imbalance and premature failure of the lower-breakdown unit. For higher current capability, select a single higher-rated device (e.g., 5.0SMCJ6.5CA) or implement staged protection with GDT + TVS.
Does 3.0SMCJ6.5CA-13 meet AEC-Q200 requirements?
Standard 3.0SMCJ6.5CA-13 is not AEC-Q200 qualified. However, Diodes offers automotive-grade equivalents with Q-suffix (e.g., 3.0SMCJ6.5CAQ-13) that undergo full AEC-Q200 stress testing, PPAP documentation, and IATF 16949 manufacturing controls-required for under-hood or safety-critical vehicle subsystems.
How does the SMC package affect thermal performance compared to SMA or SMB?
The SMC package offers ~2.5× the copper pad area of SMA and ~1.8× that of SMB, enabling significantly better heat dissipation during repetitive surges. With 8.00mm² mounting pads, it maintains clamping performance up to 150°C ambient-whereas SMA/SMB variants derate more aggressively above 85°C and may fail under sustained 10/1000µs pulses at elevated temperatures.
3.0SMCJ6.5CA-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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 267.9A
- 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
3.0SMCJ6.5CA-13 FAQ
1.How can I place an order for 3.0SMCJ6.5CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ6.5CA-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 3.0SMCJ6.5CA-13 reliable?
The price and inventory of 3.0SMCJ6.5CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ6.5CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ6.5CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ6.5CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ6.5CA-13?
3.0SMCJ6.5CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ6.5CA-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 3.0SMCJ6.5CA-13?
For technical support, including 3.0SMCJ6.5CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ6.5CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ6.5CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ6.5CA-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 3.0SMCJ6.5CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ6.5CA-13?
All 3.0SMCJ6.5CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ6.5CA-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 3.0SMCJ6.5CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ6.5CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ6.5CA-13 Tags

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ESD9B5.0ST5G
onsemi

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DESD3V3E1BL-7B
Diodes Incorporated

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ESD5Z3.3T1G
onsemi

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D5V0H1B2LP-7B
Diodes Incorporated

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D5V0P1B2LP-7B
Diodes Incorporated

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DESD5V0U1BA-7
Diodes Incorporated

-
ESD5Z5.0T1G
onsemi

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DESD5V0U1BB-7
Diodes Incorporated

-
D12V0L1B2LP-7B
Diodes Incorporated

-
PESD2V0Y1BSFYL
Nexperia USA Inc.

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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage

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D5V0L1B2WS-7
Diodes Incorporated
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