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Microchip Technology SMAJ5.0CE3/TR13
- Part No.:
- SMAJ5.0CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ5.0CE3/TR13.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,155
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Product details
Overview
SMAJ5.0CE3/TR13 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for primary and secondary lightning surge protection, ESD/EFT immunity per IEC61000-4-2/4-4, and inductive switching transient suppression in DC power rails and signal lines. It features a 5.0 V reverse standoff voltage (VWM), 6.4 V minimum breakdown voltage (VBR), 9.2 V maximum clamping voltage (VC) at 54.3 A peak pulse current, and 500 W peak pulse power rating at 10/1000 µs waveform.
For engineers reviewing the SMAJ5.0CE3/TR13 datasheet, SMAJ5.0CE3/TR13 pinout, SMAJ5.0CE3/TR13 application, or SMAJ5.0CE3/TR13 equivalent, this device is selected for robust overvoltage protection in automotive body electronics, industrial sensor interfaces, telecom power inputs, and USB/RS-485 port-level surge hardening where low clamping voltage and fast response (<5 ns) are critical.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its silicon avalanche structure delivers sub-nanosecond response to transients, with clamping initiated before downstream ICs experience damaging overvoltage.
Designed for DO-214AC (SMA) package mounting on FR4 PCBs, it achieves 15 °C/W junction-to-lead thermal resistance and supports 1.56 W steady-state dissipation at 25 °C ambient. The "e3" suffix confirms RoHS-compliant matte-tin plating, and "TR13" denotes 13-inch tape-and-reel packaging (2500 units/reel).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before leakage exceeds 800 µA; sets upper limit for protected circuit's normal operating range. |
| VBR min @ IBR | 6.4 V @ 10 mA - Minimum voltage at which avalanche conduction begins; ensures reliable triggering above system noise margins. |
| VC @ IPP | 9.2 V @ 54.3 A - Clamped voltage during 10/1000 µs surge; defines worst-case overvoltage seen by downstream components. |
| PPP | 500 W - Peak pulse power handling capability; enables survival of high-energy surges such as IEC61000-4-5 Class 4 (12 Ω source) events. |
| IPP | 54.3 A - Peak surge current supported at rated clamping voltage; determines minimum series impedance required for coordination with upstream fuses or PTCs. |
| TJ Range | –65 °C to +150 °C - Operating and storage temperature range; supports under-hood automotive and industrial environments. |
| Capacitance | ~500 pF @ 0 V (bidirectional) - Measured capacitance per leg; impacts high-speed signal integrity in data line applications. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, void-free thermosetting epoxy case with C-bend leads; RoHS-compliant matte-tin plating; cathode band omitted (bidirectional symmetry).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically; surge current flows bidirectionally between terminals to ground reference, requiring no polarity assignment during layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded DC rails without polarity concerns. |
| IEC61000-4-5 compliance | Validated for secondary lightning protection up to Class 4 (12 Ω source) and Class 1 (42 Ω source), supporting industrial and telecom surge immunity requirements. |
| Fast response time | <5 ns clamping initiation for bidirectional operation ensures protection before transient energy couples into sensitive analog or digital circuitry. |
| RoHS-compliant "e3" finish | Matte-tin plating meets JEDEC J-STD-020B Level 1 moisture sensitivity; eliminates dry-pack requirement and supports lead-free reflow (260 °C/10 s). |
| High surge current rating | 54.3 A peak pulse current at 10/1000 µs enables coordination with 100 mA–1 A fuses and maintains reliability after repeated surge events. |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial RS-485 Data Line Protection |
|---|---|
Use Scenario: 12 V battery-supplied BCM subjected to load dump (ISO 7637-2 Pulse 5a) and coupled ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point, shunting surge energy to chassis ground before reaching LDOs and microcontrollers. Use Value: 9.2 V clamping limits voltage stress on 5 V logic rails and prevents latch-up in CAN transceivers and LIN drivers during transients. |
Use Scenario: Factory-floor RS-485 network exposed to ground potential differences and EFT bursts during motor switching. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across A/B differential pair and referenced to local signal ground, suppressing common-mode surges. Use Value: Symmetric 9.2 V clamping preserves signal integrity while preventing receiver input damage during ±2 kV EFT (IEC61000-4-4) and ±4 kV ESD (IEC61000-4-2). |
| USB 2.0 Port-Level Surge Hardening | Telecom DC Power Feed Protection |
Use Scenario: Consumer USB host port connected to peripherals in uncontrolled environments (e.g., kiosks, POS terminals). IC Role / Device Role / Timing Role: TVS placed on VBUS line with series ferrite bead; clamps hot-plug inrush and contact ESD before reaching USB controller IC. Use Value: 5.0 V VWM allows full 5 V nominal operation while 9.2 V VC stays below USB 2.0 absolute maximum rating (6.5 V) for downstream PHY protection. |
Use Scenario: 48 V DC power feed to remote radio unit (RRU) in outdoor base station, subject to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional TVS used in parallel with DC-DC converter input, coordinated with MOV-based primary protection stage. Use Value: 500 W peak power rating sustains multiple IEC61000-4-5 Class 2 surges (1 kV, 12 Ω source) without degradation, ensuring long-term field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0Ae3/TR13 | Unidirectional variant with cathode marking; same VWM, VBR, VC, and PPP, but asymmetric conduction (forward voltage ~3.5 V). | Required only when protecting DC rails with defined polarity (e.g., single-supply analog sensors); unsuitable for AC or floating lines. | Select SMAJ5.0Ae3/TR13 if polarity is fixed and forward conduction must be minimized; otherwise SMAJ5.0CE3/TR13 provides broader topology flexibility. |
| SMBJ5.0CE3/TR13 | Same electrical specs but in DO-214AA (SMB) package: 2.5 mm wider body, higher thermal mass (12 °C/W junction-to-lead), 600 W PPP rating. | Better suited for high-reliability industrial systems requiring extended surge endurance or higher steady-state power margin. | Choose SMBJ5.0CE3/TR13 when board space permits larger footprint and thermal performance is prioritized over miniaturization. |
Compared with SMAJ5.0Ae3/TR13 and SMBJ5.0CE3/TR13, the SMAJ5.0CE3/TR13 offers optimal balance of compact DO-214AC footprint, bidirectional symmetry, and proven 500 W surge capability-making it ideal for space-constrained, polarity-agnostic protection in consumer, telecom, and automotive edge nodes.
Availability
SMAJ5.0CE3/TR13 is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial sensor interface boards, telecom DC power feeds, and USB peripheral protection requiring stable component supply across multi-year production cycles.
Supply support for SMAJ5.0CE3/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 belongs to Microsemi's transient voltage suppressor product line, engineered specifically for surface-mount surge protection in harsh electromagnetic environments where fast response, repeatable clamping, and long-term stability are mandatory.
FAQ
What does the "C" suffix in SMAJ5.0CE3/TR13 indicate?
The "C" suffix in SMAJ5.0CE3/TR13 denotes bidirectional construction, meaning the device clamps symmetrically for both positive and negative transients without polarity dependence. This distinguishes it from unidirectional variants like SMAJ5.0Ae3/TR13 and makes SMAJ5.0CE3/TR13 suitable for AC-coupled or floating signal lines such as RS-485, CAN, or USB D+/D− pairs.
Is SMAJ5.0CE3/TR13 compliant with IEC61000-4-5 for lightning surge protection?
Yes, SMAJ5.0CE3/TR13 is validated for secondary lightning protection per IEC61000-4-5 with both 12 Ω and 42 Ω source impedances. It meets Class 4 (12 Ω) and Class 1 (42 Ω) requirements, supporting its use in telecom power inputs and industrial control cabinets where standardized surge immunity is mandated.
What is the maximum clamping voltage of SMAJ5.0CE3/TR13 during a 10/1000 µs surge?
The maximum clamping voltage (VC) of SMAJ5.0CE3/TR13 is 9.2 V at a peak pulse current (IPP) of 54.3 A under the standard 10/1000 µs waveform. This value is guaranteed across temperature and lifetime, defining the upper voltage limit imposed on protected circuitry during surge events.
Can SMAJ5.0CE3/TR13 be used in place of SMAJ5.0Ae3/TR13?
No-SMAJ5.0CE3/TR13 is bidirectional while SMAJ5.0Ae3/TR13 is unidirectional with a marked cathode. Substituting SMAJ5.0CE3/TR13 for SMAJ5.0Ae3/TR13 may cause unintended conduction in DC circuits with fixed polarity. Use SMAJ5.0CE3/TR13 only where bidirectional clamping is required or verified compatible with system grounding architecture.
What is the moisture sensitivity level (MSL) of SMAJ5.0CE3/TR13?
SMAJ5.0CE3/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it is not humidity-sensitive and requires no dry pack or floor life limitations. This simplifies manufacturing logistics and supports standard lead-free reflow profiles up to 260 °C for 10 seconds.
SMAJ5.0CE3/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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 52A
- 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)
SMAJ5.0CE3/TR13 FAQ
1.How can I place an order for SMAJ5.0CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ5.0CE3/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 SMAJ5.0CE3/TR13 reliable?
The price and inventory of SMAJ5.0CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ5.0CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ5.0CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ5.0CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ5.0CE3/TR13?
SMAJ5.0CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ5.0CE3/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 SMAJ5.0CE3/TR13?
For technical support, including SMAJ5.0CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ5.0CE3/TR13 requirements.
6.How does Aetrix verify that SMAJ5.0CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ5.0CE3/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 SMAJ5.0CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ5.0CE3/TR13?
All SMAJ5.0CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ5.0CE3/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 SMAJ5.0CE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ5.0CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ5.0CE3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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