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Microchip Technology SMAJ10CAE3/TR13
- Part No.:
- SMAJ10CAE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10CAE3/TR13.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,604
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Product details
Overview
SMAJ10CAE3/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. It features a 10 V working peak standoff voltage (VWM), 11.1 V minimum breakdown voltage (VBR), 18.8 V maximum clamping voltage (VC) at 26.6 A peak pulse current, and 500 W peak pulse power rating at 10/1000 µs waveform.
For engineers reviewing the SMAJ10CAE3/TR13 datasheet, SMAJ10CAE3/TR13 pinout, SMAJ10CAE3/TR13 application, or SMAJ10CAE3/TR13 equivalent, this device is selected for robust overvoltage protection in DC power rails, communication interfaces, and automotive body electronics where bidirectional clamping, RoHS compliance, and DO-214AC package compatibility are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with clamping action triggered when reverse or forward voltage exceeds ±11.1 V (VBR min). Its <100 ps theoretical response time ensures effective suppression of fast transients including ESD events and RF-induced surges.
The device is rated for 500 W peak pulse power at 25 °C using the 10/1000 µs standard waveform, with thermal resistance of 15 °C/W junction-to-lead and 80 °C/W junction-to-ambient on FR4 board. It supports operating temperatures from –65 °C to +150 °C and meets IEC61000-4-5 secondary lightning protection up to Class 4 (42 Ω source impedance).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating rail voltage margin. |
| VBR min | 11.1 V @ 1 mA - Minimum breakdown voltage threshold; ensures reliable conduction onset during overvoltage events. |
| VC @ IPP | 18.8 V @ 26.6 A - Clamped voltage under 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPP | 500 W - Peak pulse power handling capability; enables protection against high-energy transients like lightning-induced surges. |
| IPP | 26.6 A - Peak pulse current supported at VC; directly correlates with surge energy absorption (W × s). |
| ID @ VWM | 1 µA - Maximum leakage current at rated standoff voltage; ensures minimal standby power loss and signal integrity. |
| tclamp | <5 ns - Bidirectional clamping response time; critical for suppressing fast-rising ESD and EFT pulses. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, void-free thermosetting epoxy case with RoHS-compliant matte-tin plating; cathode marking omitted for bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Identical electrical behavior in both directions; no polarity sensitivity-enables placement without orientation check. |
| Case / Body | Non-connected mechanical structure | No internal connection; serves only as thermal path and mechanical anchor; requires no grounding or biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating lines without polarity constraints. |
| RoHS-compliant "e3" suffix | Meets EU Directive 2011/65/EU; uses annealed matte-tin plating compatible with lead-free reflow profiles. |
| Tape-and-reel packaging (TR13) | 2500 units per 13-inch reel per EIA-481-1-A; supports automated SMT assembly with standard pick-and-place feeders. |
| IEC61000-4-5 Class 4 compliance | Validated for secondary lightning protection with 42 Ω source impedance-covers harsh industrial and automotive environments. |
| DO-214AC footprint compatibility | Matches JEDEC-standard pad layout (A=1.70–2.26 mm, B=3.99–4.50 mm); enables drop-in replacement for legacy SMAJ variants. |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) Interface |
|---|---|
Use Scenario: 12 V DC power rail in programmable logic controllers exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional TVS placed between VIN and GND to clamp positive and negative transients before reaching downstream regulators and microcontrollers. Use Value: Limits voltage excursion to ≤18.8 V during 26.6 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic ICs. |
Use Scenario: LIN bus line in door module subjected to ESD discharge and battery reversal transients. IC Role / Device Role / Timing Role: TVS connected across LIN differential pair to shunt ESD energy while maintaining signal integrity below 20 kbps. Use Value: Sub-5 ns clamping response prevents data corruption during ±8 kV contact ESD events per IEC61000-4-2 Level 4. |
| Telecom Line Card Surge Protection | Consumer USB Port ESD Guard |
Use Scenario: Low-voltage DC supply input on VoIP gateway board located in unshielded office environments. IC Role / Device Role / Timing Role: Primary surge limiter upstream of DC-DC converters, coordinated with fuse and MOV for staged protection. Use Value: Absorbs 500 W transient energy per IEC61000-4-5 (42 Ω, 1.2/50 µs), reducing stress on downstream ceramic capacitors and LDOs. |
Use Scenario: VBUS line in USB 2.0 host port exposed to user-handling ESD during cable insertion. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to USB connector to divert ESD current before reaching USB transceiver IC. Use Value: 1 µA leakage at 10 V ensures no impact on USB suspend current budget (<500 µA), preserving battery life in portable devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CAHE3/TR13 | Same electrical specs but includes high-reliability screening (HTRB, surge, temperature cycling) per MIL-PRF-19500 JANTX requirements. | Required for aerospace, avionics, or military-grade designs demanding extended qualification testing. | Select SMAJ10CAHE3/TR13 only if full MIL-spec screening is mandated; otherwise SMAJ10CAE3/TR13 provides identical protection performance at lower cost. |
| SMBJ10CA-E3/52 | DO-214AA (SMB) package; same VWM, VBR, VC, but lower PPP = 600 W (vs. 500 W) and higher IPP = 32.4 A at same VC. | Preferred where board space allows larger footprint and higher surge margin is needed beyond IEC61000-4-5 Class 4. | SMBJ10CA-E3/52 offers greater surge headroom but occupies ~30% more PCB area; choose based on layout constraints and reliability margin requirements. |
Compared with SMAJ10CAE3/TR13, SMAJ10CAHE3/TR13 adds qualification testing without changing clamping behavior, while SMBJ10CA-E3/52 trades package size for higher peak current capacity-neither is pin-compatible due to differing DO-214AC vs. DO-214AA footprints.
Availability
SMAJ10CAE3/TR13 is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, telecom line card surge protection, and consumer USB port ESD guard applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMAJ10CAE3/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 for ruggedized transient suppression in harsh environments-emphasizing fast response, repeatable clamping, and thermal robustness in compact surface-mount packages.
FAQ
What does the "CA" suffix indicate in SMAJ10CAE3/TR13?
The "CA" suffix in SMAJ10CAE3/TR13 denotes a bidirectional configuration-meaning the device clamps symmetrically for both positive and negative voltage transients. Unlike unidirectional variants (e.g., SMAJ10A), SMAJ10CAE3/TR13 has no polarity marking and functions identically regardless of voltage polarity applied across its terminals.
Is SMAJ10CAE3/TR13 compliant with IEC61000-4-5 for lightning surge protection?
Yes, SMAJ10CAE3/TR13 is validated for secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance up to Class 4 (12 VWM devices), and with 12 Ω source impedance up to Class 2. Its 500 W peak pulse power rating and 18.8 V clamping voltage at 26.6 A ensure reliable energy diversion in these standardized surge test conditions.
What is the thermal resistance of SMAJ10CAE3/TR13, and how does it affect PCB layout?
SMAJ10CAE3/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 adequate copper pour around the pads is essential for sustained surge duty; insufficient thermal mass may cause localized overheating during repeated transients.
Does SMAJ10CAE3/TR13 require orientation during PCB placement?
No-SMAJ10CAE3/TR13 is a bidirectional TVS with symmetrical electrical characteristics, so no cathode band or polarity marking is present. The device can be placed in either orientation on the PCB without affecting performance, simplifying automated assembly and reducing placement errors.
What is the meaning of the "TR13" suffix in SMAJ10CAE3/TR13?
The "TR13" suffix indicates tape-and-reel packaging: 2500 units per 13-inch reel conforming to EIA-481-1-A standards. This format is optimized for high-speed SMT placement equipment and ensures consistent feeding, alignment, and moisture-sensitive handling per IPC/JEDEC J-STD-020B Level 1 (no dry pack required).
SMAJ10CAE3/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:
- 17V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- 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)
SMAJ10CAE3/TR13 FAQ
1.How can I place an order for SMAJ10CAE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10CAE3/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 SMAJ10CAE3/TR13 reliable?
The price and inventory of SMAJ10CAE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ10CAE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ10CAE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10CAE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10CAE3/TR13?
SMAJ10CAE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10CAE3/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 SMAJ10CAE3/TR13?
For technical support, including SMAJ10CAE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10CAE3/TR13 requirements.
6.How does Aetrix verify that SMAJ10CAE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ10CAE3/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 SMAJ10CAE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ10CAE3/TR13?
All SMAJ10CAE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10CAE3/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 SMAJ10CAE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ10CAE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ10CAE3/TR13 Tags
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