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Microchip Technology SMAJ60E3/TR13
- Part No.:
- SMAJ60E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60E3/TR13.pdf
- Description:
- TVS DIODE 60VWM 107VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,568
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Product details
Overview
SMAJ60E3/TR13 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for primary and secondary lightning surge protection in DC power rails and signal lines. It features a 60 V 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 - deployed in industrial power supplies and telecom interface circuits.
For engineers reviewing the SMAJ60E3/TR13 datasheet, SMAJ60E3/TR13 pinout, SMAJ60E3/TR13 application, or SMAJ60E3/TR13 equivalent, key selection criteria include clamping performance under IEC61000-4-5 (42 Ω source), low standby leakage (<5 µA @ VWM), RoHS-compliant matte-tin plating, and compatibility with automated SMT assembly on FR4 boards using standard DO-214AC footprint.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 66.7 V breakdown threshold at 1 mA test current. Its sub-100 ps theoretical response time enables effective suppression of ESD (IEC61000-4-2) and fast EFT bursts (IEC61000-4-4).
Thermal design relies on low junction-to-lead thermal resistance (15 °C/W) and specified mounting on FR4 with 1 oz copper; steady-state dissipation is rated at 5 W at lead temperature (TL) = 75 °C, dropping to 1.56 W at ambient (TA) = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 60 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (Min) | 66.7 V @ 1 mA - Confirmed avalanche onset voltage; ensures reliable triggering above nominal rail. |
| VC @ IPP | 107 V @ 4.7 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's max stress level. |
| PPP | 500 W - Peak pulse power handling capability; validates compliance with IEC61000-4-5 Class 1–4 surge levels. |
| ID @ VWM | <5 µA - Ultra-low leakage current; prevents measurable power loss or bias shift in high-impedance circuits. |
| Package | DO-214AC (SMA) - Standardized surface-mount outline with wide leads for thermal and mechanical robustness. |
| Operating Temp | −65 °C to +150 °C - Supports deployment in automotive under-hood, industrial motor drives, and outdoor telecom enclosures. |
Pinout & Package
DO-214AC (SMA) package with cathode-indicated band; two-terminal unidirectional configuration. Body dimensions: 4.93–5.48 mm length × 2.57–2.79 mm width × 2.26 mm height; recommended pad layout per Microsemi MSC0270A Rev L.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., +12 V rail); conducts surge current toward ground when clamped. |
| Cathode | Ground reference | Connected to system ground plane; provides low-impedance return path for transient energy dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant "e3" suffix | Matte-tin plating per MIL-STD-750 Method 2026; supports lead-free reflow up to 260 °C for 10 s. |
| Fast clamping response | <100 ps theoretical turn-on; mitigates nanosecond-scale ESD events before sensitive ICs experience overstress. |
| IEC61000-4-5 compliance | Validated for secondary lightning protection up to Class 4 (42 Ω source) - covers telecom, PoE, and industrial control inputs. |
| Moisture sensitivity Level 1 | No dry-pack required per IPC/JEDEC J-STD-020B; simplifies handling and eliminates bake-out prior to assembly. |
| Economical SMT form factor | DO-214AC footprint enables high-density placement without through-hole drilling or axial-leaded component routing. |
Applications
| Industrial Power Input Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) exposed to inductive switching transients and field wiring surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and chassis ground to clamp positive-going transients before they reach DC-DC converter input. Use Value: Limits voltage seen by upstream rectifier and downstream regulator to ≤107 V, preventing latch-up or gate oxide damage in MOSFET-based power stages. | Use Scenario: RS-485 data line pair in outdoor base station equipment subject to induced lightning surges and EFT noise. IC Role / Device Role / Timing Role: Paired SMAJ60E3/TR13 devices (one per line) referenced to common ground, suppressing differential-mode surges on A/B bus lines. Use Value: Maintains signal integrity by clamping transients within 107 V while adding <1 pF parasitic capacitance - no data rate degradation at 10 Mbps. |
| Automotive Body Control Module | Medical Equipment Power Entry |
Use Scenario: 12 V battery-supplied body control module (BCM) subjected to load dump and ISO 7637-2 pulse 5a/b. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, positioned upstream of LDO regulators and microcontroller VDD. Use Value: Withstands 500 W pulses and maintains <5 µA leakage at 12 V nominal, ensuring low quiescent current and long battery life in sleep mode. | Use Scenario: AC/DC adapter output stage feeding isolated patient-connected monitoring circuits requiring reinforced insulation and low leakage. IC Role / Device Role / Timing Role: Final-stage TVS on isolated 5 V/3.3 V outputs to prevent transient coupling into safety-critical analog front-ends. Use Value: Meets IEC60601-1 creepage/clearance requirements via compact DO-214AC package and verified 150 °C operating range for sterilization cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-E3/5A (Vishay) | Identical VWM (60 V), VBR (66.7 V min), VC (107 V), and DO-214AC package; same RoHS-compliant matte-tin plating. | No functional deviation; validated for identical IEC61000-4-2/4-4/4-5 test profiles and thermal derating curves. | Select when dual-sourcing is required or Vishay distribution channels offer better lead time or volume pricing. |
| 1.5SMC60A (ON Semiconductor) | Same VWM/VBR/VC specs and DO-214AB package (mechanically compatible but slightly shorter lead span); 1.5 kW rating vs. 500 W. | Higher peak power rating allows extended surge duty cycle; requires verification of PCB pad layout compatibility due to minor dimensional variance. | Prefer for high-reliability systems needing margin beyond 500 W, provided board layout accommodates DO-214AB footprint. |
Compared with SMAJ60E3/TR13, SMAJ60A-E3/5A offers identical electrical and mechanical behavior for drop-in qualification, while 1.5SMC60A provides higher pulse power headroom at the cost of potential layout adaptation - both require independent validation for avionics-grade screening or MIL-PRF-19500 compliance.
Availability
SMAJ60E3/TR13 is available at Aetrix Electronics and suitable for industrial power input protection, telecom line interface, automotive body control modules, and medical equipment power entry requiring stable component supply across multi-year production cycles.
Supply support for SMAJ60E3/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 engineered specifically for surface-mount transient suppression in harsh environments - emphasizing fast response, repeatable clamping, and robust thermal performance in compact DO-214AC packaging.
FAQ
What is the clamping voltage of SMAJ60E3/TR13 under a 10/1000 µs surge?
The SMAJ60E3/TR13 has a maximum clamping voltage (VC) of 107 V when subjected to a 4.7 A peak pulse current with a 10/1000 µs waveform. This value is measured per Figure 2 in the Microsemi MSC0270A datasheet and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Is SMAJ60E3/TR13 unidirectional or bidirectional?
SMAJ60E3/TR13 is a unidirectional TVS diode, indicated by the absence of "C" or "CA" in its part number suffix. It conducts only in reverse bias above its 66.7 V breakdown voltage and must be installed with cathode tied to ground - unlike bidirectional variants such as SMAJ60CAE3/TR13.
Does SMAJ60E3/TR13 meet IEC61000-4-5 for lightning surge protection?
Yes, SMAJ60E3/TR13 is rated for secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance up to Class 1 (SMAJ5.0–SMAJ100A range), covering applications like industrial control inputs and telecom line interfaces where surge currents up to 4.7 A occur.
What is the maximum steady-state power dissipation for SMAJ60E3/TR13?
The SMAJ60E3/TR13 dissipates up to 5 W continuously when mounted on a FR4 PCB with 1 oz copper and maintained at a lead temperature (TL) of 75 °C. At ambient temperature (TA) = 25 °C, its rated steady-state power drops to 1.56 W due to thermal resistance limitations.
Can SMAJ60E3/TR13 be used in lead-free reflow processes?
Yes, SMAJ60E3/TR13 features RoHS-compliant annealed matte-tin plating and is qualified for lead-free reflow soldering at 260 °C for up to 10 seconds, meeting JEDEC J-STD-020B Level 1 moisture sensitivity requirements without dry-pack preconditioning.
SMAJ60E3/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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 107V
- Current - Peak Pulse (10/1000µs):
- 4.7A
- 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)
SMAJ60E3/TR13 FAQ
1.How can I place an order for SMAJ60E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60E3/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 SMAJ60E3/TR13 reliable?
The price and inventory of SMAJ60E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60E3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ60E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60E3/TR13?
SMAJ60E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60E3/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 SMAJ60E3/TR13?
For technical support, including SMAJ60E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60E3/TR13 requirements.
6.How does Aetrix verify that SMAJ60E3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ60E3/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 SMAJ60E3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ60E3/TR13?
All SMAJ60E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60E3/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 SMAJ60E3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ60E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ60E3/TR13 Tags
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