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Microchip Technology SMAJ160CE3/TR13
- Part No.:
- SMAJ160CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ160CE3/TR13.pdf
- Description:
- TVS DIODE 160VWM 287VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,751
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Product details
Overview
SMAJ160CE3/TR13 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for secondary lightning and ESD/EFT protection in DC power rails and signal lines. It features a 160 V standoff voltage (VWM), 178 V minimum breakdown voltage (VBR), 287 A peak pulse current (IPP @ 10/1000 µs), 287 V clamping voltage (VC), and 500 W peak pulse power dissipation - deployed in telecom power supplies, industrial I/O modules, and automotive body control units.
For engineers reviewing the SMAJ160CE3/TR13 datasheet, SMAJ160CE3/TR13 pinout, SMAJ160CE3/TR13 application, or SMAJ160CE3/TR13 equivalent, this page delivers verified electrical parameters, RoHS-compliant packaging details, IEC61000-4-2/4-4/4-5 compliance context, and validated alternative parts for surge protection design-in.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with clamping response <5 ns and sub-1 µA standby leakage at 160 V. Its DO-214AC (SMA) package enables low-inductance PCB layout critical for high-speed transient suppression.
Rated for -65°C to +150°C operation, it supports secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance (Class 1) and 12 Ω source impedance (Class 2), and meets IEC61000-4-2 (±8 kV contact, ±15 kV air) and IEC61000-4-4 (±2 kV) immunity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 160 V - maximum continuous reverse operating voltage before conduction begins; sets DC rail compatibility threshold. |
| Breakdown Voltage (VBR) | 178 V min @ 1 mA - guaranteed conduction onset under defined test current; ensures predictable turn-on margin above VWM. |
| Clamping Voltage (VC) | 287 V @ 287 A (10/1000 µs) - peak voltage seen by protected circuit during worst-case surge; defines absolute overvoltage ceiling. |
| Peak Pulse Power (PPP) | 500 W @ 25°C - energy-handling capacity for standardized 10/1000 µs waveform; determines survivability against repetitive transients. |
| Leakage Current (ID) | 1.7 µA max @ VWM - minimal DC loading on upstream circuitry; preserves efficiency in high-impedance bias networks. |
| Response Time | <5 ns - time from transient onset to clamping activation; enables protection of fast-edge digital interfaces and analog sensors. |
| Operating Temperature | -65°C to +150°C - full specification range without derating; suitable for under-hood automotive and outdoor industrial enclosures. |
Pinout & Package
DO-214AC (SMA) surface-mount package with C-bend (modified J-bend) leads, void-free thermosetting epoxy body (UL94V-0), matte-tin RoHS-compliant plating, and cathode band omitted for bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Identical bidirectional conduction - no polarity sensitivity; connects across protected line and ground without orientation constraints. |
| Case / Body | Thermal & mechanical interface | Low thermal resistance (15°C/W junction-to-lead); requires recommended FR4 footprint (1 oz Cu) for rated 500 W pulse handling. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional architecture | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| IEC61000-4-5 Class 1 compliance (42 Ω) | Validated for secondary lightning surges up to 4 kV in telecom and industrial power distribution systems. |
| RoHS-compliant "e3" suffix | Meets EU Directive 2011/65/EU with annealed matte-tin plating - no lead, cadmium, or hexavalent chromium. |
| Tape-and-reel packaging (TR13) | 2500 units per 13-inch reel per EIA-481-1-A - optimized for automated SMT placement in high-volume production. |
| Moisture Sensitivity Level 1 | No dry-pack or baking required prior to reflow - reduces manufacturing overhead and floor-life management burden. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24 V DC power inputs against load-dump-induced spikes and relay-coil flyback transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between VIN and chassis ground to shunt surge energy away from MCU power regulators and CAN transceivers. Use Value: Limits transient voltage to ≤287 V during 287 A pulses, preventing latch-up or permanent damage to 3.3 V/5 V logic supply stages. |
Use Scenario: Surge suppression on LIN bus lines exposed to battery transients and ESD events during service access. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS mounted directly at connector entry point to absorb ±8 kV contact ESD per IEC61000-4-2. Use Value: Sub-5 ns response ensures clamping occurs before LIN transceiver input structures experience destructive overvoltage stress. |
| Telecom Power Rectifiers | Renewable Energy Inverters |
Use Scenario: Input-stage protection of 48 V DC-DC converters in base station power supplies subjected to induced lightning surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on rectified output, coordinated with upstream MOVs to handle multi-staged surge waveforms. Use Value: 500 W peak power rating sustains repeated 10/1000 µs surges per IEC61000-4-5 Class 1 (42 Ω), extending system field life. |
Use Scenario: DC link protection in solar microinverters where PV string voltages exceed 150 V and require robust transient immunity. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across DC bus capacitors to clamp switching noise and grid-coupled surges. Use Value: 160 V VWM aligns with 150 V nominal PV string ratings while providing 18 V safety margin before breakdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ160CA | Identical VWM (160 V), VBR (178 V), VC (287 V), and IPP (287 A); same DO-214AC package; non-RoHS default (requires "-TP" suffix for RoHS). | Same IEC61000-4-2/4-4/4-5 compliance profile; widely used in legacy telecom designs with established qualification data. | Select when sourcing from Littelfuse-dedicated supply chains or requiring MIL-PRF-19500 screening options (JANTX grade). |
| Vishay SMAJ160AHE3/A | Unidirectional variant (anode-cathode asymmetry); 160 V VWM, 178 V VBR, but clamps only in reverse direction; forward surge rating (40 A, 8.3 ms) applies. | Requires polarity-aware placement; suited for DC rails with known ground reference, not floating or AC signals. | Choose only for unidirectional DC protection where forward conduction must be avoided and polarity is fixed. |
Compared with SMAJ160CE3/TR13, the Littelfuse SMAJ160CA offers identical bidirectional performance and RoHS capability with different marking and screening options, while Vishay's SMAJ160AHE3/A provides unidirectional clamping - requiring careful circuit-level polarity validation and offering no AC or floating-line protection capability.
Availability
SMAJ160CE3/TR13 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power rectifiers requiring stable component supply with full RoHS compliance and tape-and-reel automation support.
Supply support for SMAJ160CE3/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 ICs, RF solutions, and discrete protection devices for aerospace, defense, and industrial markets.
The SMAJ series was developed specifically for surface-mount transient suppression in space-constrained, high-surge environments - emphasizing fast response, repeatable clamping, and ruggedized packaging for mission-critical power and signal integrity.
FAQ
What is the clamping voltage of SMAJ160CE3/TR13 under a 10/1000 µs surge?
The SMAJ160CE3/TR13 has a maximum clamping voltage (VC) of 287 V when subjected to its rated peak pulse current of 287 A using the standard 10/1000 µs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components remain within safe operating voltage margins.
Is SMAJ160CE3/TR13 bidirectional or unidirectional?
SMAJ160CE3/TR13 is a bidirectional transient voltage suppressor, indicated by the "C" suffix in its part number. It conducts symmetrically in both directions, making it suitable for protecting AC-coupled lines, floating buses, or any application where polarity reversal or undefined signal direction may occur - unlike unidirectional variants such as SMAJ160A.
Does SMAJ160CE3/TR13 meet IEC61000-4-5 for lightning surge immunity?
Yes, SMAJ160CE3/TR13 is rated for secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance (Class 1) and 12 Ω source impedance (Class 2). Its 500 W peak pulse power rating and 287 V clamping voltage ensure compliance when applied with appropriate PCB layout and system-level coordination.
What package type does SMAJ160CE3/TR13 use?
SMAJ160CE3/TR13 uses the DO-214AC (SMA) surface-mount package - a compact, thermally efficient outline with C-bend leads, UL94V-0 epoxy body, and RoHS-compliant matte-tin plating. Its dimensions (0.194–0.216 in length, 0.160–0.180 in width) and recommended pad layout enable reliable reflow soldering and optimal thermal dissipation.
What is the maximum steady-state power dissipation of SMAJ160CE3/TR13?
SMAJ160CE3/TR13 dissipates up to 5 W continuously at a lead temperature (TL) of 75°C, or 1.56 W at ambient temperature (TA) of 25°C when mounted on a standard FR4 board with 1 oz copper and the manufacturer-recommended footprint. This rating governs long-term thermal design and derating curves for sustained overvoltage conditions.
SMAJ160CE3/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):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 287V
- Current - Peak Pulse (10/1000µs):
- 1.7A
- 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)
SMAJ160CE3/TR13 FAQ
1.How can I place an order for SMAJ160CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ160CE3/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 SMAJ160CE3/TR13 reliable?
The price and inventory of SMAJ160CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ160CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ160CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ160CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ160CE3/TR13?
SMAJ160CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ160CE3/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 SMAJ160CE3/TR13?
For technical support, including SMAJ160CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ160CE3/TR13 requirements.
6.How does Aetrix verify that SMAJ160CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ160CE3/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 SMAJ160CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ160CE3/TR13?
All SMAJ160CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ160CE3/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 SMAJ160CE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ160CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ160CE3/TR13 Tags
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