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Diodes Incorporated SMBJ6.5A-13-F
- Part No.:
- SMBJ6.5A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5A-13-F.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:23,962
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Product details
Overview
SMBJ6.5A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 6.5V reverse standoff voltage, 7.22V minimum breakdown voltage at 10mA, 11.2V maximum clamping voltage at 53.6A peak pulse current, and SMB package. It protects DC power rails and I/O lines in industrial control modules against ESD, lightning-induced surges, and inductive switching transients.
For engineers reviewing the SMBJ6.5A-13-F datasheet, SMBJ6.5A-13-F pinout, SMBJ6.5A-13-F application, or SMBJ6.5A-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current capability under 8.3ms half-sine waveform, thermal derating above +25°C, and RoHS-compliant matte tin lead finish for lead-free reflow compatibility.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds VRWM = 6.5V, it avalanches at VBR ≥ 7.22V and clamps to ≤11.2V at IPP = 53.6A. Its glass-passivated die ensures stable breakdown characteristics and low leakage (<500µA at VRWM).
Designed for single-pulse surge suppression per REA 10/1000µs waveform, it delivers 600W peak pulse power with 4.8W/°C derating above +25°C ambient and supports operating junction temperatures from –55°C to +150°C - suitable for under-hood automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 8.3ms half-sine surge without failure |
| Reverse Standoff Voltage | 6.5V - maximum continuous DC voltage before significant leakage |
| Breakdown Voltage | 7.22–8.30V @ 10mA - defines precise avalanche initiation threshold |
| Clamping Voltage | 11.2V @ 53.6A - limits transient voltage seen by downstream circuitry |
| Peak Pulse Current | 53.6A - maximum surge current the device can safely divert |
| Leakage Current | <500µA @ 6.5V - ensures minimal standby power loss on protected rail |
| Package | SMB - surface-mount outline with 3.3–3.94mm body width and 5.0–5.59mm length |
Pinout & Package
Package: SMB (Surface Mount Body), molded plastic case rated UL 94V-0, 0.1g mass, matte tin-plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-to-cathode polarity reference | Identifies cathode terminal; connects to protected line; anode ties to ground for unidirectional operation |
| Anode | Reference node for clamping path | Connected to system ground; completes low-impedance surge shunt path during avalanche conduction |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables robust protection against IEC 61000-4-5 Level 4 (4kV) surges in 2Ω/12Ω source impedance configurations |
| Glass-passivated die construction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| RoHS-compliant matte tin finish | Supports Pb-free reflow profiles up to 260°C peak temperature without intermetallic degradation |
| Unidirectional configuration | Provides asymmetric clamping ideal for DC power rails where reverse polarity is not expected |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 5V/12V digital input channels in programmable logic controllers from field-wiring induced transients and relay coil flyback. IC Role / Device Role / Timing Role: Shunt TVS diode placed between signal line and ground, activated within nanoseconds of overvoltage event. Use Value: Clamps to 11.2V while diverting 53.6A, preventing damage to microcontroller GPIOs rated for 5.5V absolute maximum. |
Use Scenario: Safeguards LIN bus transceivers and sensor supply lines in door modules exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Unidirectional clamp on 12V battery-fed rails, responding to <10ns rise-time transients. Use Value: Withstands 100A surge for 8.3ms per JEDEC JESD22-A114E, maintaining <500µA leakage at nominal 12V system voltage. |
| DC Power Supply Input Stage | POS Terminal Interface |
Use Scenario: Installed at input of 5V buck converter feeding FPGA core logic, suppressing ESD and hot-swap spikes. IC Role / Device Role / Timing Role: Primary front-end surge limiter upstream of filter capacitors and IC-level TVS devices. Use Value: 6.5V VRWM allows clean operation across 4.75–5.25V nominal rail; 11.2V clamping prevents overvoltage stress on converter enable pin. |
Use Scenario: Shields RS-232/RS-485 transceivers in point-of-sale terminals connected to external peripherals via unshielded cables. IC Role / Device Role / Timing Role: Line-side TVS on TX/RX lines referenced to local ground, handling contact discharge per IEC 61000-4-2. Use Value: 600W rating accommodates multiple repetitive 8kV ESD events without parametric shift; SMB footprint enables dense PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-13-F | Bi-directional version; symmetric clamping for AC-coupled or bidirectional signal lines | Required for RS-485 differential pairs or audio line protection where polarity reversal occurs | Select only if protecting bidirectional signals; adds ~0.5V higher clamping in either polarity vs. unidirectional SMBJ6.5A |
| SMAJ6.5A-13-F | Lower 400W peak power rating; same VRWM/VBR but 12.3V clamping at 32.5A | Suitable for lower-energy threats (e.g., IEC 61000-4-2 ESD only) where board space or cost constraints limit SMB use | Choose when surge threat level is confirmed ≤400W; SMA package has smaller footprint but reduced thermal mass and surge capacity |
Compared with SMBJ6.5CA-13-F and SMAJ6.5A-13-F, SMBJ6.5A-13-F provides optimal balance of high-energy clamping (600W), tight 6.5V standoff, and industry-standard SMB mounting - making it preferred for DC power and unidirectional I/O protection where surge immunity beyond 400W is required.
Availability
SMBJ6.5A-13-F is available at Aetrix Electronics and suitable for industrial automation systems, automotive body electronics, DC power supply inputs, and point-of-sale terminal interfaces requiring stable component supply and consistent surge performance across production batches.
Supply support for SMBJ6.5A-13-F 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.
SMBJ6.5A-13-F belongs to Diodes' SMBJ series of transient voltage suppressors - engineered for high-power, surface-mount surge protection in harsh environments where repeatable clamping performance and RoHS compliance are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ6.5A-13-F at its rated peak pulse current?
The maximum clamping voltage is 11.2V at 53.6A peak pulse current (IPP) under 8.3ms half-sine waveform conditions. This value is guaranteed per DS19002 Rev. 20-2 and represents the upper limit of voltage imposed on the protected circuit during worst-case surge events.
Is SMBJ6.5A-13-F suitable for protecting a 5V microcontroller I/O pin?
Yes - its 6.5V reverse standoff voltage provides adequate margin above 5V nominal rails, and 11.2V clamping voltage remains below typical microcontroller absolute maximum ratings (e.g., 6.5V for many 5V-tolerant GPIOs). For direct I/O protection, pairing with a series current-limiting resistor is recommended to limit diode conduction current.
How does the SMB package compare to SMA in thermal performance?
The SMB package offers ~25% greater thermal mass and 20% higher steady-state power dissipation (5.0W @ TL = +75°C) than SMA. Its larger body dimensions (5.0–5.59mm length vs. SMA's 4.2–4.7mm) improve heat spreading and reduce junction temperature rise during repetitive surge events.
Does SMBJ6.5A-13-F meet automotive AEC-Q200 requirements?
No - SMBJ6.5A-13-F is qualified for commercial temperature range (–55°C to +150°C) and RoHS compliance, but Diodes Incorporated does not list it under AEC-Q200 stress testing. For automotive-grade TVS, consider Diodes' AEC-Q200-qualified APxxxx series or SMBJ variants explicitly marked "AEC-Q200 Qualified" in ordering information.
SMBJ6.5A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 53.6A
- Power - Peak Pulse:
- 600W
- 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:
- SMB
SMBJ6.5A-13-F FAQ
1.How can I place an order for SMBJ6.5A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5A-13-F 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 SMBJ6.5A-13-F reliable?
The price and inventory of SMBJ6.5A-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ6.5A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5A-13-F?
SMBJ6.5A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5A-13-F 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 SMBJ6.5A-13-F?
For technical support, including SMBJ6.5A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5A-13-F requirements.
6.How does Aetrix verify that SMBJ6.5A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5A-13-F 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 SMBJ6.5A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ6.5A-13-F?
All SMBJ6.5A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5A-13-F, 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 SMBJ6.5A-13-F part is unused and in its original packaging.
Return procedure for SMBJ6.5A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5A-13-F Tags
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Diodes Incorporated
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