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Microchip Technology SMAJ10CE3/TR13
- Part No.:
- SMAJ10CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10CE3/TR13.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,049
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Product details
Overview
SMAJ10CE3/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 10 V working standoff voltage (VWM), 11.1 V minimum breakdown voltage (VBR), clamps transients to ≤18.8 V at 26.6 A peak pulse current (IPP), and delivers 500 W peak pulse power (10/1000 µs). It is widely deployed in industrial I/O interfaces and telecom line cards requiring IEC61000-4-2/4-4/4-5 compliance.
For engineers reviewing the SMAJ10CE3/TR13 datasheet, SMAJ10CE3/TR13 pinout, SMAJ10CE3/TR13 application, or SMAJ10CE3/TR13 equivalent, key selection criteria include bidirectional clamping capability, DO-214AC package compatibility, 1 µA max standby leakage at 10 V, -65°C to +150°C operating temperature range, and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This TVS operates as a voltage-clamped shunt protector with symmetrical avalanche breakdown in both polarities due to its bidirectional construction (C suffix). Its <100 ps theoretical response time enables effective suppression of fast ESD events (IEC61000-4-2 ±8 kV contact), while its 10/1000 µs waveform rating supports sustained surge handling per IEC61000-4-5 Class 4 (12 Ω source impedance).
The device uses a silicon avalanche diode structure housed in a void-free thermosetting epoxy case (UL94V-0), with C-bend leads optimized for thermal dissipation on FR4 PCBs. Thermal resistance is 15 °C/W junction-to-lead and 80 °C/W junction-to-ambient under recommended footprint conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 10 V - Maximum continuous reverse voltage before conduction begins; sets operating margin for protected circuit. |
| VBR (Min) | 11.1 V @ 1 mA - Guaranteed avalanche initiation threshold; ensures reliable turn-on above normal operating voltage. |
| VC @ IPP | 18.8 V @ 26.6 A - Clamped voltage during 500 W surge; defines worst-case overvoltage seen by downstream ICs. |
| PPP | 500 W @ 10/1000 µs - Peak transient energy absorption capacity; validates suitability for industrial surge standards. |
| ID @ VWM | 1 µA max - Ultra-low leakage current; prevents loading of high-impedance sensor or reference circuits. |
| Operating Temp | -65°C to +150°C - Enables deployment in extended-temperature environments including automotive under-hood and industrial motor drives. |
| Package | DO-214AC (SMA) - Standardized surface-mount outline with 2.57–2.79 mm body width; compatible with automated SMT assembly. |
Pinout & Package
DO-214AC (SMA) package: surface-mount, bidirectional, unmarked polarity (no cathode band); void-free UL94V-0 epoxy body; C-bend matte-tin plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path (bidirectional) | Connects to ground or low-impedance return node; conducts during negative transients. |
| Cathode | Surge return path (bidirectional) | Connects to ground or low-impedance return node; conducts during positive transients. Symmetric terminals enable orientation-agnostic placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 500 W peak pulse power | Meets IEC61000-4-5 Class 4 (12 Ω source) and Class 1 (42 Ω source) secondary lightning requirements. |
| RoHS-compliant "e3" finish | Matte-tin plating ensures lead-free solder compatibility and eliminates tin whisker risk in long-life applications. |
| 1 µA max leakage @ VWM | Preserves accuracy in precision analog front-ends and battery-powered sensor nodes. |
| DO-214AC mechanical standardization | Ensures drop-in replacement across multiple manufacturers and simplifies PCB footprint reuse. |
Applications
| Industrial PLC Analog Inputs | Telecom Line Interface Cards |
|---|---|
Use Scenario: Protection of 4–20 mA current loop inputs against induced surges from nearby motor switching or lightning coupling. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed between signal line and chassis ground, limiting transient overvoltage to <19 V. Use Value: Prevents damage to precision op-amps and ADCs while maintaining sub-µA input bias current integrity. | Use Scenario: Surge protection on T1/E1 interface transformer secondaries exposed to longitudinal surges per GR-1089-CORE. IC Role / Device Role / Timing Role: Primary-level TVS mounted directly at connector entry point, clamping common-mode transients before isolation transformers. Use Value: Maintains signal integrity up to 2.048 MHz by minimizing capacitance (<100 pF typical) and avoiding distortion from asymmetric clamping. |
| Automotive Body Control Modules | Medical Sensor Signal Conditioning |
Use Scenario: Protection of LIN bus transceivers and switch inputs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS across power rail (VBAT–GND) and signal pins, absorbing 500 W spikes within nanoseconds. Use Value: Eliminates need for separate unidirectional devices on dual-polarity control lines, reducing BOM count and board area. | Use Scenario: Guarding low-noise instrumentation amplifiers in patient-connected ECG/EEG front-ends against ESD discharge. IC Role / Device Role / Timing Role: High-impedance shunt element placed at amplifier input, activated only during ±8 kV HBM ESD events. Use Value: 1 µA leakage preserves common-mode rejection ratio (CMRR) and avoids baseline drift in microvolt-level biopotential measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA | Same electrical specs and DO-214AC package; lacks "e3" RoHS-compliant plating and TR13 tape-and-reel packaging. | No regulatory compliance for lead-free manufacturing; unsuitable for new designs targeting RoHS/REACH. | Select SMAJ10CE3/TR13 when RoHS compliance and standardized reel packaging are required for automated SMT production. |
| SMBJ10CA | Lower 400 W peak power rating; identical VWM, VBR, VC, and DO-214AA package (slightly smaller footprint). | Insufficient for IEC61000-4-5 Class 4 testing; limited to lower-energy surge environments. | Choose SMBJ10CA only if system-level surge testing confirms <400 W requirement and PCB space constraints prohibit SMA outline. |
Compared with SMAJ10CA and SMBJ10CA, SMAJ10CE3/TR13 uniquely combines full 500 W surge capability, RoHS-compliant matte-tin plating, and EIA-481-1-A tape-and-reel delivery-making it the preferred choice for new industrial and medical designs requiring certified compliance and production-ready packaging.
Availability
SMAJ10CE3/TR13 is available at Aetrix Electronics and suitable for industrial PLC analog inputs, telecom line interface cards, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for SMAJ10CE3/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 engineered specifically for surface-mount transient suppression in harsh environments, emphasizing robust surge handling, wide temperature operation, and standardized packaging for automated manufacturing.
FAQ
What does the "C" suffix in SMAJ10CE3/TR13 indicate?
The "C" suffix denotes bidirectional construction, meaning SMAJ10CE3/TR13 provides symmetrical clamping for both positive and negative transients without polarity sensitivity. This eliminates orientation constraints during PCB placement and enables protection of AC-coupled or floating signal paths where voltage polarity may reverse, unlike unidirectional variants (e.g., SMAJ10A) that require correct anode/cathode alignment.
Is SMAJ10CE3/TR13 compliant with IEC61000-4-5 for lightning surge protection?
Yes, SMAJ10CE3/TR13 meets IEC61000-4-5 secondary lightning surge immunity requirements: it supports Class 4 (12 Ω source impedance) up to 12 A peak and Class 1 (42 Ω source impedance) up to 26.6 A peak. Its 500 W rating at 10/1000 µs waveform ensures reliable clamping during standardized surge tests, making SMAJ10CE3/TR13 suitable for front-end protection in industrial and telecom infrastructure equipment.
What is the maximum clamping voltage of SMAJ10CE3/TR13 during a 500 W transient?
The maximum clamping voltage (VC) of SMAJ10CE3/TR13 is 18.8 V at 26.6 A peak pulse current (IPP), corresponding to the 500 W 10/1000 µs surge condition. This value represents the worst-case overvoltage imposed on protected circuitry during full-rated surge events, ensuring downstream ICs rated for ≥20 V absolute maximum survive transient exposure without latch-up or parametric shift.
Does SMAJ10CE3/TR13 require special PCB layout considerations?
Yes-SMAJ10CE3/TR13 requires adherence to Microsemi's recommended DO-214AC pad layout (Page 5 of MSC0270A) to achieve specified thermal performance: 15 °C/W junction-to-lead resistance depends on copper area and via count beneath the pads. Short, low-inductance traces to ground planes are essential to minimize clamping voltage overshoot during fast ESD events, and SMAJ10CE3/TR13 must be placed as close as possible to protected connectors or IC pins.
How does the "e3" and "TR13" in SMAJ10CE3/TR13 affect procurement?
The "e3" suffix certifies SMAJ10CE3/TR13 as RoHS-compliant with annealed matte-tin plating per J-STD-020B Level 1 moisture sensitivity, eliminating dry-pack requirements. "TR13" indicates EIA-481-1-A tape-and-reel packaging with 2500 units per 13-inch reel-enabling direct use in high-speed pick-and-place machines. Together, these identifiers ensure SMAJ10CE3/TR13 meets environmental compliance mandates and supports automated SMT production without rework.
SMAJ10CE3/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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 26.6A
- 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)
SMAJ10CE3/TR13 FAQ
1.How can I place an order for SMAJ10CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10CE3/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 SMAJ10CE3/TR13 reliable?
The price and inventory of SMAJ10CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ10CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ10CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10CE3/TR13?
SMAJ10CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10CE3/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 SMAJ10CE3/TR13?
For technical support, including SMAJ10CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10CE3/TR13 requirements.
6.How does Aetrix verify that SMAJ10CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ10CE3/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 SMAJ10CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ10CE3/TR13?
All SMAJ10CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10CE3/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 SMAJ10CE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ10CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ10CE3/TR13 Tags
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