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Microchip Technology SMAJ60CAE3/TR13
- Part No.:
- SMAJ60CAE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60CAE3/TR13.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,785
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Product details
Overview
SMAJ60CAE3/TR13 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for robust ESD, EFT, and secondary lightning surge protection in DC power rails and signal lines. It features a 60 V reverse standoff voltage (VWM), 66.7 V minimum breakdown voltage (VBR), 107 V maximum clamping voltage (VC) at 4.7 A peak pulse current, and 500 W peak pulse power rating per 10/1000 µs waveform.
For engineers reviewing the SMAJ60CAE3/TR13 datasheet, SMAJ60CAE3/TR13 pinout, SMAJ60CAE3/TR13 application, or SMAJ60CAE3/TR13 equivalent, key selection criteria include bidirectional clamping capability, RoHS-compliant matte-tin plating, DO-214AC package compatibility, IEC61000-4-2/4-4/4-5 compliance, and suitability for industrial power supply input protection and telecom interface surge hardening.
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 (unidirectional) and <5 ns for bidirectional devices ensures effective suppression of fast-rising ESD events per IEC61000-4-2 Level 4 (±15 kV contact).
Designed for mounting on FR4 PCB with 1 oz copper, it delivers 15 °C/W junction-to-lead thermal resistance and supports steady-state dissipation of 1.56 W at 25 °C ambient. The device meets IEC61000-4-5 secondary lightning requirements up to Class 4 (42 Ω source) for VWM ≤ 12 V - though SMAJ60CAE3/TR13 applies to Class 1 (42 Ω) and Class 1 (12 Ω) per its 60 V rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit's normal operating range. |
| VBR min @ IBR | 66.7 V @ 1 mA - Minimum voltage at which avalanche conduction initiates; ensures reliable turn-on above system transients. |
| VC @ IPP | 107 V @ 4.7 A - Clamped voltage during 10/1000 µs surge; defines worst-case overvoltage seen by downstream components. |
| PPP | 500 W - Peak pulse power handling capacity; determines survivability against standardized lightning surges (IEC61000-4-5). |
| ID @ VWM | ≤ 5.2 µA - Reverse leakage current at rated standoff; negligible loading on 60 V bias networks. |
| Package | DO-214AC (SMA) - Industry-standard surface-mount outline with C-bend leads; compatible with automated pick-and-place and reflow. |
| Operating Temp | –65 °C to +150 °C - Wide junction temperature range supports under-hood automotive, industrial, and outdoor equipment use. |
Pinout & Package
DO-214AC (SMA) package with two terminals: symmetrical bidirectional construction means no anode/cathode distinction; polarity band is omitted per datasheet specification for CA-suffix parts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Surge Input / Line Side | Connects to unprotected line (e.g., DC input rail or data line); conducts surge energy to Terminal 2 during overvoltage event. |
| Terminal 2 | Surge Return / Ground Reference | Typically tied to system ground or low-impedance return path; completes clamping loop and shunts transient current away from load. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals or floating interfaces without polarity sensitivity; eliminates need for dual unidirectional devices. |
| RoHS-compliant "e3" finish | Matte-tin plating meets lead-free soldering requirements and ensures reliable wetting during reflow assembly. |
| IEC61000-4-5 Class 1 compliance | Validated for secondary lightning surge immunity with 42 Ω source impedance - critical for industrial power entry designs. |
| Low clamping ratio (VC/VBR) | 107 V / 66.7 V ≈ 1.60 - Tighter ratio than many 60 V TVS diodes, minimizing overvoltage stress on protected ICs. |
| Moisture Sensitivity Level 1 | No dry pack required per J-STD-020B - simplifies handling, storage, and manufacturing logistics. |
Applications
| Industrial Power Supply Input Protection | Telecom Interface Surge Hardening |
|---|---|
Use Scenario: 60 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and field wiring transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed between input rail and chassis ground to clamp positive/negative surges before they reach DC-DC converter ICs. Use Value: Limits transient overvoltage to ≤107 V, preventing damage to 75 V-rated input capacitors and enabling compliance with IEC61000-4-5 Class 1 (42 Ω). | Use Scenario: RS-485 data line pair in outdoor base station equipment subject to induced lightning surges. IC Role / Device Role / Timing Role: One SMAJ60CAE3/TR13 per line (A/B) referenced to signal ground, providing symmetrical clamping for differential mode transients. Use Value: Sub-5 ns response ensures clamping before transceiver ICs experience destructive overvoltage; bidirectional symmetry avoids polarity miswiring risk. |
| Automotive Body Control Module (BCM) Sensor Inputs | Medical Equipment AC/DC Adapter Input Stage |
Use Scenario: 12 V sensor supply line in BCM exposed to ISO 7637-2 pulse 1/2a/3a transients during vehicle operation. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt coupled spikes to ground before reaching LDO regulators and microcontroller analog inputs. Use Value: 500 W rating withstands repetitive 10/1000 µs pulses; –65 °C to +150 °C rating supports under-dash mounting environments. | Use Scenario: Secondary-side 60 V DC output of medical-grade AC/DC adapter feeding patient-connected monitoring circuits. IC Role / Device Role / Timing Role: Final-stage TVS safeguarding isolated DC output against user-induced ESD and mains-coupled surges entering via output cables. Use Value: RoHS-compliant "e3" finish and UL94V-0 epoxy body meet IEC 60601-1 creepage/clearance and material safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60CAHE3/TR13 | Same electrical specs; "HE3" denotes high-reliability screening per MIL-PRF-19500 JANTX level with extended HTRB and surge testing. | Required for aerospace, defense, or avionics where 100% temperature cycling and surge validation is mandated. | Select SMAJ60CAHE3/TR13 only when qualification to MIL-PRF-19500 is contractually required; otherwise SMAJ60CAE3/TR13 suffices for commercial/industrial use. |
| SMBJ60CA-E3/52 | Same VWM, VBR, VC; SMB package (DO-214AA) offers 600 W rating but larger footprint and higher thermal resistance (20 °C/W). | Suitable where higher pulse power margin is needed and board space permits larger package; not drop-in compatible due to different pad layout. | Choose SMBJ60CA-E3/52 if surge threat exceeds 500 W or thermal management requires lower junction temperature rise; verify PCB land pattern compatibility. |
Compared with SMAJ60CAHE3/TR13, the SMAJ60CAE3/TR13 omits high-reliability screening but retains identical clamping performance and RoHS compliance for cost-sensitive industrial designs; versus SMBJ60CA-E3/52, it trades 100 W peak power for smaller DO-214AC footprint and better board-level thermal coupling.
Availability
SMAJ60CAE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply input protection, telecom interface surge hardening, automotive body control modules, medical AC/DC adapter outputs, and RS-485/RS-422 data line protection requiring stable component supply and full traceability.
Supply support for SMAJ60CAE3/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 and mixed-signal ICs, discrete protection devices, and timing solutions for aerospace, defense, and industrial markets.
The SMAJ series was engineered specifically for surface-mount transient suppression in space-constrained, high-surge environments - emphasizing fast response, repeatable clamping, and rugged packaging for mission-critical power and interface protection.
FAQ
What does the "CA" suffix indicate in SMAJ60CAE3/TR13?
The "CA" suffix in SMAJ60CAE3/TR13 specifies a bidirectional transient voltage suppressor configuration, meaning it provides symmetrical clamping for both positive and negative voltage transients without polarity dependence. Unlike unidirectional variants (e.g., SMAJ60A), SMAJ60CAE3/TR13 has no cathode marking and is used where AC signals, floating references, or polarity-agnostic protection are required - such as RS-485 bus lines or transformer-coupled interfaces.
Is SMAJ60CAE3/TR13 compliant with IEC61000-4-5 for lightning surge protection?
Yes, SMAJ60CAE3/TR13 is validated for IEC61000-4-5 secondary lightning surge immunity under Class 1 conditions with 42 Ω source impedance, supporting peak pulse currents up to 4.7 A. Its 500 W rating and 107 V clamping voltage ensure protected circuits remain within safe operating limits during standardized 10/1000 µs surge waveforms - making it suitable for industrial power entry and telecom infrastructure applications where this standard applies.
What is the thermal resistance of SMAJ60CAE3/TR13, and how does it affect PCB layout?
SMAJ60CAE3/TR13 has a junction-to-lead thermal resistance of 15 °C/W and junction-to-ambient resistance of 80 °C/W when mounted on FR4 with 1 oz copper and the recommended footprint. This means effective heat dissipation relies heavily on copper area connected to its terminals; designers must follow the specified pad layout (Page 5 of datasheet) and avoid narrow traces to prevent thermal runaway during repetitive surges or elevated ambient temperatures.
Can SMAJ60CAE3/TR13 be used in place of a unidirectional TVS like SMAJ60A?
No - SMAJ60CAE3/TR13 is bidirectional and cannot replace SMAJ60A in circuits requiring polarity-specific clamping, such as DC power rail protection where only positive transients occur. SMAJ60A clamps only in reverse bias and conducts forward surge current (40 A peak), while SMAJ60CAE3/TR13 clamps symmetrically but lacks forward surge rating. Substitution requires verifying signal polarity, grounding scheme, and whether bidirectional behavior introduces unintended conduction paths.
What does the "TR13" suffix signify in SMAJ60CAE3/TR13?
The "TR13" suffix in SMAJ60CAE3/TR13 indicates tape-and-reel packaging on a 13-inch reel containing 2500 units, conforming to EIA-481-1-A standards with 12 mm carrier tape. This format enables automated SMT placement and is standard for high-volume production; the "TR" alone denotes tape-and-reel, while "13" specifies reel size - distinct from "TR" on 7-inch reels (750 units). No electrical or reliability differences exist between TR13 and other packaging options.
SMAJ60CAE3/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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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)
SMAJ60CAE3/TR13 FAQ
1.How can I place an order for SMAJ60CAE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60CAE3/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 SMAJ60CAE3/TR13 reliable?
The price and inventory of SMAJ60CAE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60CAE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ60CAE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60CAE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60CAE3/TR13?
SMAJ60CAE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60CAE3/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 SMAJ60CAE3/TR13?
For technical support, including SMAJ60CAE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60CAE3/TR13 requirements.
6.How does Aetrix verify that SMAJ60CAE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ60CAE3/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 SMAJ60CAE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ60CAE3/TR13?
All SMAJ60CAE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60CAE3/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 SMAJ60CAE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ60CAE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ60CAE3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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