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Microchip Technology SMAJ6.0CAE3/TR13
- Part No.:
- SMAJ6.0CAE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0CAE3/TR13.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,805
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Product details
Overview
SMAJ6.0CAE3/TR13 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for primary and secondary lightning surge protection, ESD/EFT immunity, and inductive switching transient clamping in DC power rails and signal lines. It features 6.0 V reverse standoff voltage (VWM), 6.67 V minimum breakdown voltage (VBR), 11.4 V maximum clamping voltage (VC) at 43.9 A peak pulse current, and 500 W peak pulse power rating per 10/1000 µs waveform.
For engineers reviewing the SMAJ6.0CAE3/TR13 datasheet, SMAJ6.0CAE3/TR13 pinout, SMAJ6.0CAE3/TR13 application, or SMAJ6.0CAE3/TR13 equivalent, key selection criteria include bidirectional clamping capability, IEC61000-4-2/4-4/4-5 compliance, DO-214AC package thermal performance, and RoHS-compliant matte-tin plating for lead-free assembly.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its <100 ps theoretical response time for unidirectional mode (and <5 ns for bidirectional operation) ensures effective suppression of fast-rising ESD events and switching transients.
The device delivers 500 W peak pulse power dissipation at 25 °C with 10/1000 µs waveform, supported by low thermal resistance (15 °C/W junction-to-lead) and a void-free UL94V-0 epoxy case. It meets IEC61000-4-5 secondary lightning protection up to Class 4 (42 Ω source impedance) and Class 2 (12 Ω source impedance).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Reverse Standoff) | 6.0 V - Maximum continuous working voltage before significant leakage; defines safe operating margin for 5 V rail protection. |
| VBR min @ IBR | 6.67 V @ 10 mA - Minimum voltage at which device enters avalanche conduction; ensures reliable triggering above nominal rail. |
| VC @ IPP | 11.4 V @ 43.9 A - Clamped voltage during 500 W transient; limits downstream IC stress to safe levels under surge. |
| PPP | 500 W @ 10/1000 µs - Peak surge energy handling capacity; supports industrial-grade lightning and EFT robustness. |
| IPP | 43.9 A - Peak current survivability at rated clamping voltage; determines minimum series impedance required for coordination. |
| ID @ VWM | 800 µA - Max standby leakage at 6.0 V; negligible loading on low-power sensor or logic circuits. |
| Operating Temp | −65 °C to +150 °C - Wide temperature range enables use in automotive engine compartments and industrial enclosures. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, void-free thermosetting epoxy case with UL94V-0 rating; C-bend (modified J-bend) leads, RoHS-compliant annealed matte-tin plating; moisture sensitivity level (MSL) 1 - no dry pack required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode Band Side) | Transient return path (bidirectional) | One terminal of symmetrical avalanche junction; connects to protected line; no polarity marking on CA devices. |
| Cathode (Opposite Band Side) | Transient return path (bidirectional) | Second terminal of symmetrical junction; connects to ground or reference plane; identical electrical role to Anode in CA configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses (e.g., RS-485), or floating nodes without polarity concerns. |
| IEC61000-4-5 Class 4 support | Validated for secondary lightning surges with 42 Ω source impedance - critical for telecom and industrial port protection. |
| RoHS-compliant "e3" finish | Matte-tin plating compatible with lead-free reflow profiles (260 °C/10 s); eliminates Pb-based solder compatibility risks. |
| DO-214AC thermal performance | 15 °C/W junction-to-lead thermal resistance enables sustained 5 W steady-state dissipation at 75 °C lead temperature. |
| Fast response time | <5 ns bidirectional turn-on ensures clamping before ESD pulses (e.g., ±8 kV contact discharge) damage CMOS inputs. |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module (BCM) Power Rails |
|---|---|
|
Use Scenario: 24 V DC input/output terminals exposed to load dump and inductive kickback in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed between terminal and local regulator/LDO input. Use Value: Limits voltage to ≤11.4 V during 43.9 A surges, preventing LDO overvoltage failure and preserving downstream MCU operation. |
Use Scenario: 12 V battery-supplied power rail feeding microcontrollers and CAN transceivers in door modules or lighting controllers. IC Role / Device Role / Timing Role: Primary surge suppressor on main VCC net, coordinated with ceramic decoupling caps. Use Value: Withstands ISO 7637-2 Pulse 1 (−150 V/2 Ω) and Pulse 3a/b (±150 V) waveforms when used with appropriate series impedance. |
| RS-485 Transceiver Port Protection | USB 2.0 Data Line ESD Suppression |
|
Use Scenario: Differential A/B lines of industrial RS-485 transceivers connected to long cables subject to induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed across A–B and from each line to ground in common-mode configuration. Use Value: Symmetrical 6.67 V breakdown and 11.4 V clamping ensure balanced protection without skewing differential signaling integrity. |
Use Scenario: D+ and D− lines of USB 2.0 ports exposed to human-body-model (HBM) and IEC61000-4-2 contact discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (typ. 100 pF @ 0 V) placed directly at connector. Use Value: Sub-5 ns response clamps ±15 kV ESD strikes while maintaining <1% signal distortion at 480 Mbps full-speed data rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0AHE3/TR13 | Unidirectional variant with cathode band marking; same VWM, VBR, VC, and PPP. | Requires explicit polarity assignment; unsuitable for AC or floating nodes. | Select when protecting single-polarity DC rails where ground-referenced clamping suffices and board space allows orientation control. |
| SMBJ6.0CA | Same VWM/VBR/VC but 600 W PPP rating in larger DO-214AA (SMB) package; higher IPP (48.5 A). | Higher surge margin for harsher environments; requires larger PCB footprint and different pad layout. | Choose when system-level testing demands >500 W headroom or legacy SMB footprint compatibility is required. |
Compared with SMAJ6.0CAE3/TR13, the unidirectional SMAJ6.0AHE3/TR13 simplifies layout polarity management but sacrifices AC-line flexibility, while the SMBJ6.0CA offers higher surge capacity at the cost of increased board area and thermal mass - making SMAJ6.0CAE3/TR13 optimal for space-constrained, bidirectional 5–6 V rail protection.
Availability
SMAJ6.0CAE3/TR13 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive BCM power rails, RS-485 transceiver port hardening, and USB 2.0 data line ESD suppression requiring stable component supply and RoHS-compliant manufacturing.
Supply support for SMAJ6.0CAE3/TR13 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The SMAJ series was developed specifically for surface-mount transient suppression in space-constrained, high-surge environments - emphasizing fast response, bidirectional symmetry, and robust thermal performance in the DO-214AC package.
FAQ
What does the "CA" suffix indicate in SMAJ6.0CAE3/TR13?
The "CA" suffix denotes a bidirectional configuration: SMAJ6.0CAE3/TR13 features symmetrical avalanche characteristics across both terminals, enabling clamping of positive and negative transients without polarity constraints. This differs from "A"-suffixed unidirectional variants that require correct anode/cathode orientation relative to ground. The device has no polarity marking, consistent with its bidirectional function.
Does SMAJ6.0CAE3/TR13 meet IEC61000-4-5 for lightning surge protection?
Yes, SMAJ6.0CAE3/TR13 is validated for secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance (Class 4) and 12 Ω source impedance (Class 2). Its 500 W peak pulse power rating and 11.4 V clamping voltage at 43.9 A enable coordination with series impedance to meet these standards in telecom interfaces, industrial Ethernet ports, and power supply inputs.
What is the thermal resistance and steady-state power rating of SMAJ6.0CAE3/TR13?
SMAJ6.0CAE3/TR13 has a junction-to-lead thermal resistance of 15 °C/W and delivers 5 W steady-state power dissipation at 75 °C lead temperature (TL). When mounted on FR4 with 1 oz copper and recommended footprint, it provides 1.56 W at 25 °C ambient (TA). These values support continuous operation in thermally managed industrial and automotive environments.
How does the "e3" and "TR13" suffix affect SMAJ6.0CAE3/TR13?
The "e3" suffix confirms RoHS compliance with annealed matte-tin plating suitable for lead-free reflow (260 °C/10 s), while "TR13" indicates tape-and-reel packaging on a 13-inch reel containing 2500 units per EIA-481-1-A standard. This configuration ensures automated SMT placement readiness and regulatory alignment for global electronics manufacturing.
Can SMAJ6.0CAE3/TR13 be used for USB 2.0 ESD protection?
Yes, SMAJ6.0CAE3/TR13 is suitable for USB 2.0 D+/D− line protection due to its bidirectional operation, <5 ns response time, and low clamping voltage (11.4 V), which prevents damage to transceiver I/O cells during ±15 kV IEC61000-4-2 contact discharge. Its typical capacitance (~100 pF at 0 V) is acceptable for full-speed (480 Mbps) operation when placed adjacent to the connector.
SMAJ6.0CAE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 48.5A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ6.0CAE3/TR13 FAQ
1.How can I place an order for SMAJ6.0CAE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0CAE3/TR13 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 SMAJ6.0CAE3/TR13 reliable?
The price and inventory of SMAJ6.0CAE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0CAE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ6.0CAE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0CAE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0CAE3/TR13?
SMAJ6.0CAE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0CAE3/TR13 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 SMAJ6.0CAE3/TR13?
For technical support, including SMAJ6.0CAE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0CAE3/TR13 requirements.
6.How does Aetrix verify that SMAJ6.0CAE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0CAE3/TR13 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 SMAJ6.0CAE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ6.0CAE3/TR13?
All SMAJ6.0CAE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0CAE3/TR13, 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 SMAJ6.0CAE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ6.0CAE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ6.0CAE3/TR13 Tags
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ESD9B5.0ST5G
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