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Microchip Technology SMAJ64CE3/TR13
- Part No.:
- SMAJ64CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ64CE3/TR13.pdf
- Description:
- TVS DIODE 64VWM 114VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,724
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Product details
Overview
SMAJ64CE3/TR13 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for IEC61000-4-2/4-4/4-5-compliant surge protection in power and signal lines. It features a 64 V reverse standoff voltage (VWM), 71.1 V minimum breakdown voltage (VBR), 114 V maximum clamping voltage (VC) at 4.4 A peak pulse current, and 500 W peak pulse power rating at 10/1000 µs waveform - deployed in telecom power supplies and industrial I/O interfaces.
For engineers reviewing the SMAJ64CE3/TR13 datasheet, SMAJ64CE3/TR13 pinout, SMAJ64CE3/TR13 application, or SMAJ64CE3/TR13 equivalent, key selection criteria include bidirectional clamping capability, RoHS-compliant matte-tin plating, DO-214AC package compatibility, and verified secondary lightning protection up to IEC61000-4-5 Class 4 with 12 Ω source impedance.
Technical Context
This TVS operates as a symmetrical avalanche diode pair in anti-parallel configuration, enabling identical clamping behavior for positive and negative transients. Its <100 ps theoretical response time (unidirectional) and <5 ns for bidirectional operation ensures effective suppression of ESD, EFT, and inductive switching spikes before sensitive downstream circuitry is stressed.
The device is rated for continuous operation from −65 °C to +150 °C, with thermal resistance of 15 °C/W junction-to-lead and 80 °C/W junction-to-ambient on FR4 (1 oz Cu). It supports 100% temperature cycling screening (−55 °C to +125 °C, 10×) when ordered with MA prefix, and MIL-PRF-19500 JANTX screening with MX prefix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 500 W at 10/1000 µs - sustains high-energy surges without failure in telecom or industrial power rails |
| Reverse Standoff Voltage (VWM) | 64 V - defines maximum continuous operating voltage before leakage exceeds 1 µA |
| Breakdown Voltage (VBR) | 71.1 V min @ 1 mA - guarantees reliable avalanche conduction onset during overvoltage events |
| Clamping Voltage (VC) | 114 V @ 4.4 A - limits voltage seen by protected ICs to safe levels under standardized surge conditions |
| Standby Leakage Current | 4.4 µA max @ 64 V - negligible power loss in standby, critical for low-power sensor nodes |
| Operating Temperature | −65 °C to +150 °C - supports deployment in automotive engine compartments and outdoor base stations |
| Package | DO-214AC (SMA) - industry-standard footprint compatible with automated SMT assembly and IPC/JEDEC reflow profiles |
Pinout & Package
DO-214AC (SMA) package: void-free thermosetting epoxy body (UL94V-0), C-bend leads with RoHS-compliant annealed matte-tin plating, cathode band omitted for bidirectional devices per specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Enables identical clamping for ± polarity transients; no polarity marking required |
| Lead 1 / Lead 2 | Surge current path to ground | Low-inductance, wide-lead design minimizes voltage overshoot during fast-rising ESD events |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VC = 114 V for both polarities - eliminates need for polarity-aware layout in AC-coupled or floating interfaces |
| IEC61000-4-5 compliance | Class 4 secondary lightning protection with 12 Ω source impedance - validated for harsh industrial mains-connected equipment |
| RoHS-compliant "e3" suffix | Matte-tin plating per JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required, simplifies handling and storage |
| Fast response time | <5 ns for bidirectional mode - captures sub-microsecond transients before CMOS gate oxide breakdown occurs |
| 500 W peak pulse rating | Rated at 10/1000 µs waveform - exceeds typical telecom surge requirements (e.g., GR-1089-CORE) without derating |
Applications
| Industrial PLC I/O Modules | Telecom DC Power Input |
|---|---|
Use Scenario: Protection of 24 V digital input channels against induced surges from relay coil switching and nearby motor drives. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and chassis ground to clamp common-mode transients before reaching optocoupler or MCU GPIO. Use Value: Prevents latch-up and permanent damage to isolation barriers while maintaining signal integrity under repeated 1 kV/500 A surge tests. |
Use Scenario: Secondary protection stage on −48 V telecom power feed entering remote radio units or DSLAM line cards. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing residual energy after primary MOV/GDT stages, limiting voltage to ≤114 V during IEC61000-4-5 4 kV tests. Use Value: Enables compliance with Telcordia GR-1089-CORE Section 4.5.2.2 for conducted surge immunity without adding bulkier discrete solutions. |
| Automotive Body Control Modules | Smart Meter Power Supply |
Use Scenario: Protection of LIN bus transceivers and microcontroller supply pins against load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS across VCC–GND and LIN–GND, leveraging fast <5 ns response to suppress 100 ns rise-time spikes. Use Value: Survives ISO 7637-2 Pulse 5a (load dump) and Pulse 1/2b (inductive switching) without degradation over 10,000 cycles. |
Use Scenario: Surge protection on 230 V AC–DC converter input and 3.3 V logic rail in revenue-grade smart electricity meters. IC Role / Device Role / Timing Role: Primary TVS on rectified DC bus and secondary TVS on isolated MCU supply, both using SMAJ64CE3/TR13 for consistent clamping behavior. Use Value: Meets IEC 62053-21 and EN 50470-3 immunity requirements for meter accuracy retention after 10 kV ESD and 4 kV surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-E3/5A (Vishay) | Unidirectional; 71.1 V VBR, 114 V VC @ 4.4 A; same DO-214AC package | Requires external polarity management; unsuitable for AC or floating signal lines | Select only if circuit topology enforces strict unidirectional current flow and polarity is fixed |
| P6KE64CA (Littelfuse) | Through-hole P6KE package; 64 V VWM, 103 V VC @ 4.8 A; 600 W rating | Larger footprint and manual assembly; higher clamping margin but lower surge repetition tolerance | Prefer for prototyping or legacy through-hole designs where board space permits larger package |
Compared with SMAJ64CE3/TR13, the Vishay SMAJ64A-E3/5A offers identical electrical specs but lacks bidirectional symmetry, while the Littelfuse P6KE64CA delivers slightly lower clamping voltage but requires PCB redesign for axial-leaded mounting - making SMAJ64CE3/TR13 optimal for space-constrained, polarity-agnostic SMT deployments.
Availability
SMAJ64CE3/TR13 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, telecom DC power inputs, and automotive body control units requiring stable component supply with full RoHS compliance and traceable sourcing.
Supply support for SMAJ64CE3/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 components for aerospace, defense, and industrial markets.
The SMAJ series was developed specifically for surface-mount transient suppression in harsh environments, emphasizing robust surge handling, extended temperature operation, and qualification-ready screening options for mission-critical systems.
FAQ
What does the "C" suffix in SMAJ64CE3/TR13 indicate?
The "C" suffix denotes bidirectional construction - two avalanche diodes connected in anti-parallel within a single DO-214AC package. This allows SMAJ64CE3/TR13 to clamp both positive and negative transients identically, eliminating polarity concerns in AC-coupled or floating circuits. Unlike unidirectional variants (e.g., SMAJ64AE3/TR13), SMAJ64CE3/TR13 has no cathode band marking.
Is SMAJ64CE3/TR13 compliant with IEC61000-4-5 for lightning surge protection?
Yes, SMAJ64CE3/TR13 is validated for secondary lightning protection per IEC61000-4-5 with 12 Ω source impedance up to Class 4 (4 kV test level), and with 42 Ω source impedance up to Class 1. Its 114 V clamping voltage at 4.4 A ensures protected circuits remain below safe voltage thresholds during standardized surge waveforms, as confirmed in Microsemi's MSC0270A datasheet.
What is the thermal resistance of SMAJ64CE3/TR13, and how does it affect PCB layout?
SMAJ64CE3/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 Microsemi's recommended pad layout. To maintain reliability under repeated 500 W surges, designers must use adequate copper pour on both leads and avoid narrow traces - insufficient heat sinking increases junction temperature and degrades long-term clamping consistency.
Does SMAJ64CE3/TR13 require moisture-sensitive handling?
No - SMAJ64CE3/TR13 is rated IPC/JEDEC J-STD-020B Level 1 (unlimited floor life), meaning it can be stored and assembled without dry packing or baking. This is enabled by its void-free thermosetting epoxy body and matte-tin plating, which prevent moisture ingress and popcorning during reflow. The "e3" suffix confirms full RoHS compliance and moisture-safe processing.
How does the clamping voltage of SMAJ64CE3/TR13 compare to its unidirectional counterpart?
SMAJ64CE3/TR13 has a maximum clamping voltage (VC) of 114 V at 4.4 A, identical to the unidirectional SMAJ64AE3/TR13. Both share the same 71.1 V minimum breakdown voltage and 64 V standoff rating. The key distinction lies in symmetry: SMAJ64CE3/TR13 achieves this VC for both polarities, whereas SMAJ64AE3/TR13 only guarantees it in the reverse direction - making SMAJ64CE3/TR13 essential for bidirectional signal paths.
SMAJ64CE3/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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 114V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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)
SMAJ64CE3/TR13 FAQ
1.How can I place an order for SMAJ64CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ64CE3/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 SMAJ64CE3/TR13 reliable?
The price and inventory of SMAJ64CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ64CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ64CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ64CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ64CE3/TR13?
SMAJ64CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ64CE3/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 SMAJ64CE3/TR13?
For technical support, including SMAJ64CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ64CE3/TR13 requirements.
6.How does Aetrix verify that SMAJ64CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ64CE3/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 SMAJ64CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ64CE3/TR13?
All SMAJ64CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ64CE3/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 SMAJ64CE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ64CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ64CE3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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