My Inquiry
My Account
Microchip Technology SMAJ160AE3/TR13
- Part No.:
- SMAJ160AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ160AE3/TR13.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,877
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ160AE3/TR13 from Microsemi is a unidirectional surface-mount Transient Voltage Suppressor (TVS) designed for primary and secondary lightning surge protection in DC power rails and signal lines. It features a 160 V working peak standoff voltage (VWM), 178 V minimum breakdown voltage (VBR), 287 A peak pulse current (IPP) at 10/1000 µs, 259 V maximum clamping voltage (VC), and 500 W peak pulse power dissipation - deployed in telecom power supplies and industrial I/O interfaces.
For engineers reviewing the SMAJ160AE3/TR13 datasheet, SMAJ160AE3/TR13 pinout, SMAJ160AE3/TR13 application, or SMAJ160AE3/TR13 equivalent, this page delivers verified electrical parameters, IEC61000-4-2/4-4/4-5 compliance context, DO-214AC package layout, and RoHS-compliant unidirectional TVS selection guidance for high-voltage transient suppression.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt device that remains non-conductive below VWM = 160 V and triggers avalanche conduction above VBR ≥ 178 V at IBR = 1 mA. Its <100 ps theoretical response time enables effective ESD and fast-switching transient suppression without affecting normal circuit operation.
The device is rated for 500 W peak pulse power at 10/1000 µs waveform, with thermal resistance of 15 °C/W junction-to-lead and 80 °C/W junction-to-ambient on FR4 (1 oz Cu). It supports secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance (Class 1) and 12 Ω source impedance (Class 2), validated for use in 24–48 V DC systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected line voltage. |
| VBR min @ IBR | 178 V @ 1 mA - Minimum voltage at which avalanche breakdown initiates; ensures reliable triggering above system operating voltage. |
| VC @ IPP | 259 V @ 287 A - Clamped voltage during 10/1000 µs surge; defines worst-case overvoltage seen by downstream ICs. |
| PPP | 500 W - Peak pulse power handling capability; determines survivability against standardized lightning surges. |
| IPP | 287 A - Peak current supported at 10/1000 µs waveform; correlates directly to IEC61000-4-5 Class 1 (42 Ω) surge level. |
| ID @ VWM | 1.7 µA - Reverse leakage current at 160 V; negligible loading on 160 V DC bus under normal conditions. |
| Response Time | <100 ps - Theoretical turn-on delay; ensures suppression of ESD events (IEC61000-4-2 ±8 kV contact) before damage occurs. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, void-free thermosetting epoxy body meeting UL94V-0; cathode indicated by band; moisture sensitivity level (MSL) 1 - no dry pack required per IPC/JEDEC J-STD-020B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-potential node; completes shunt path during transient conduction. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., +160 V rail); carries full surge current to ground via anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 500 W peak pulse power rating | Enables robust protection against IEC61000-4-5 Class 1 lightning surges (42 Ω source) on 160 V DC systems without derating. |
| RoHS-compliant "e3" termination | Matte-tin plating meets lead-free soldering requirements (260 °C / 10 s) and eliminates Pb contamination risk in final assembly. |
| DO-214AC (SMA) package | Standardized footprint compatible with automated SMT placement; wide leads enhance thermal dissipation and surge current handling. |
| Unidirectional configuration | Provides asymmetric clamping ideal for DC-biased lines (e.g., telecom power feeds), avoiding reverse conduction during normal operation. |
| IEC61000-4-2/4-4/4-5 compliance | Validated for ESD (±8 kV contact), EFT (±2 kV), and secondary lightning (42 Ω/12 Ω source) - reduces need for additional system-level testing. |
Applications
| Telecom Power Input Protection | Industrial PLC Analog I/O Protection |
|---|---|
|
Use Scenario: 160 V DC power feed to remote radio unit exposed to induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between +160 V rail and chassis ground to clamp transients before they reach DC-DC converter input stage. Use Value: Limits voltage to ≤259 V during 287 A surge, preventing gate oxide rupture in upstream MOSFETs and ensuring uninterrupted operation after Class 1 lightning event. |
Use Scenario: 4–20 mA analog input channel in programmable logic controller subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to suppress fast transients before signal conditioning op-amps and ADC front-end. Use Value: Sub-100 ps response prevents latch-up in precision amplifiers; 1.7 µA leakage avoids offset error in µA-level current loop sensing. |
| Energy Meter DC Bias Rail Protection | Railway Signaling Interface Protection |
|
Use Scenario: Auxiliary 160 V DC bias supply in smart electricity meter exposed to grid switching transients and nearby lightning. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated DC rail feeding metrology ASIC and real-time clock circuitry. Use Value: 500 W rating sustains multiple 10/1000 µs surges without degradation; UL94V-0 package prevents flame propagation in enclosed meter housing. |
Use Scenario: 160 V signaling interface in railway trackside electronics subject to traction return current coupling and EMI. IC Role / Device Role / Timing Role: Bidirectional-capable family member (e.g., SMAJ160CA) not used here; SMAJ160AE3/TR13 provides directional clamping aligned with fixed polarity signaling. Use Value: Cathode-band orientation ensures correct polarity alignment with positive-rail signaling architecture, eliminating reverse conduction risk during nominal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ160AHE3/TR13 | Same electrical specs but with high-reliability screening per MIL-PRF-19500 JANTX; includes 100% temperature cycling (-55°C to +125°C), surge testing, and HTRB. | Required for avionics, defense, or space-qualified systems where extended environmental validation is mandated. | Select SMAJ160AHE3/TR13 only when MIL-spec qualification and traceable lot-level test data are contractually required. |
| SMBJ160A-E3/52 | Same VWM, VBR, VC, and IPP, but in DO-214AA (SMB) package - larger footprint, higher thermal mass, 600 W PPP rating. | Better suited for high-volume industrial designs where PCB real estate allows larger package and higher surge margin is desired. | Choose SMBJ160A-E3/52 if board layout permits larger pad area and long-term reliability under repeated surges is prioritized over miniaturization. |
Compared with SMAJ160AE3/TR13, SMAJ160AHE3/TR13 adds military-grade screening at higher cost and longer lead time, while SMBJ160A-E3/52 trades compact DO-214AC size for enhanced thermal robustness and 20% higher peak power - both require layout review due to differing footprints and qualification scope.
Availability
SMAJ160AE3/TR13 is available at Aetrix Electronics and suitable for telecom power input protection, industrial PLC analog I/O protection, energy meter DC bias rail protection, and railway signaling interface protection requiring stable component supply across production lifecycles.
Supply support for SMAJ160AE3/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 surface-mount transient suppression in high-voltage DC systems, targeting applications where compact size, fast response, and IEC-compliant surge immunity are critical - especially in telecom infrastructure and ruggedized control equipment.
FAQ
What is the clamping voltage of SMAJ160AE3/TR13 at its rated peak pulse current?
The SMAJ160AE3/TR13 has a maximum clamping voltage (VC) of 259 V when subjected to its rated 287 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is measured per Microsemi's MSC0270A datasheet and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMAJ160AE3/TR13 unidirectional or bidirectional, and how is polarity identified?
SMAJ160AE3/TR13 is a unidirectional TVS diode, with polarity indicated by a cathode band on the package body. The cathode connects to the protected line (e.g., +160 V rail), and the anode connects to ground. This configuration ensures conduction only during positive transients - essential for DC-biased applications where reverse conduction must be avoided. Bidirectional variants carry a "C" or "CA" suffix (e.g., SMAJ160CA).
What industry standards does SMAJ160AE3/TR13 comply with for surge protection?
SMAJ160AE3/TR13 is validated for compliance with IEC61000-4-2 (ESD ±8 kV contact), IEC61000-4-4 (EFT ±2 kV), and IEC61000-4-5 (lightning surge) using 42 Ω and 12 Ω source impedances. Per Microsemi's documentation, it supports Class 1 (42 Ω) and Class 2 (12 Ω) secondary lightning protection - making it suitable for EN 61000-6-2 and EN 61000-6-4 certified equipment in industrial and telecom environments.
What is the package type and mounting compatibility of SMAJ160AE3/TR13?
SMAJ160AE3/TR13 uses the DO-214AC (SMA) surface-mount package with standardized dimensions: 4.93–5.48 mm length, 2.57–2.79 mm width, and 2.26 mm max height. Its C-bend (modified J-bend) leads are compatible with standard reflow profiles, including lead-free soldering at 260 °C for 10 seconds. The recommended pad layout matches JEDEC MS-013, and MSL Level 1 eliminates dry-pack requirements.
How does the "e3" and "TR13" suffix affect SMAJ160AE3/TR13?
The "e3" suffix indicates RoHS-compliant matte-tin plating per Microsemi's specification, enabling lead-free assembly. The "TR13" denotes tape-and-reel packaging per EIA-481-1-A standard, with 2500 units per 13-inch reel - optimized for high-speed SMT placement. Together, SMAJ160AE3/TR13 specifies a RoHS-compliant, machine-ready variant of the SMAJ160A TVS, distinct from through-hole or bulk-packaged versions.
SMAJ160AE3/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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- 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)
SMAJ160AE3/TR13 FAQ
1.How can I place an order for SMAJ160AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ160AE3/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 SMAJ160AE3/TR13 reliable?
The price and inventory of SMAJ160AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ160AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ160AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ160AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ160AE3/TR13?
SMAJ160AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ160AE3/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 SMAJ160AE3/TR13?
For technical support, including SMAJ160AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ160AE3/TR13 requirements.
6.How does Aetrix verify that SMAJ160AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ160AE3/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 SMAJ160AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ160AE3/TR13?
All SMAJ160AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ160AE3/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 SMAJ160AE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ160AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ160AE3/TR13 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
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
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
