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onsemi 1.5KE47AG
- Part No.:
- 1.5KE47AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE47AG.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,214
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Product details
Overview
1.5KE47AG from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against ESD, lightning surges, and inductive switching transients. It features a 47 V breakdown voltage (VBR = 44.7–49.4 V), 64.8 V maximum clamping voltage (VC) at 23.2 A peak pulse current (IPP), and <1 ns response time - deployed in power supply input stages, industrial I/O interfaces, and telecom line cards.
For engineers reviewing the 1.5KE47AG datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (VRWM = 40.2 V), low zener impedance, UL 497B recognition for isolated loop circuits, and axial lead (Case 41A) compatibility with through-hole PCB layouts requiring robust surge handling up to 1500 W.
Technical Context
The 1.5KE47AG operates as a silicon avalanche diode with sharp reverse-breakdown characteristics, triggered when transient voltage exceeds its VBR threshold. Its clamping action limits downstream voltage to ≤64.8 V during 1 ms 23.2 A pulses, maintaining circuit integrity under IEC 61000-4-2/4-5 stress conditions.
It exhibits low leakage (<5 µA @ VRWM), a temperature coefficient of 0.101 %/°C for VBR, and thermal resistance of 20 °C/W (junction-to-lead), enabling stable operation across −65 °C to +175 °C ambient range without derating below 75 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 40.2 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system DC bus or signal rail rating. |
| VBR @ IT = 1 mA | 44.7–49.4 V - Breakdown voltage tolerance band; ensures predictable turn-on within 10% of nominal 47 V rating. |
| VC @ IPP = 23.2 A | 64.8 V - Maximum clamped voltage during 1 ms surge; defines worst-case overvoltage seen by protected ICs. |
| PPK | 1500 W - Peak pulse power handling per non-repetitive 1 ms waveform; supports high-energy transients in AC/DC front-ends. |
| IPP | 23.2 A - Corresponding peak pulse current at VC; used to size series impedance (e.g., fuse, resistor) upstream. |
| Response Time | <1 ns - Avalanche turn-on delay; critical for protecting fast logic (e.g., RS-485, CAN, microcontroller I/O). |
| ESD Rating | Class 3 (>16 kV HBM) - Confirmed human-body-model immunity; qualifies for end-equipment ESD compliance testing. |
Pinout & Package
1.5KE47AG uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are tin-plated, solderable at 260 °C for 10 seconds at 1/16″ from case body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during clamping | Connected to ground or low-impedance return path; carries full surge current during transient events. |
| Cathode | Protected line connection | Connected to the line or node requiring protection (e.g., +48 V telecom feed); polarity band marks this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Validated for isolated loop circuit protection - enables use in safety-critical telecom and industrial isolation barriers without additional certification effort. |
| Low Clamping Ratio | VC/VBR ≈ 1.38 - Tight voltage margin between breakdown and clamp ensures minimal overvoltage stress on downstream components. |
| Pb-Free Axial Package | RoHS-compliant Case 41A construction - supports automated through-hole assembly and meets global environmental compliance requirements. |
| High Surge Robustness | Withstands ≥1500 W @ 1 ms, 200 A forward surge (IFSM) - suitable for mains-connected equipment exposed to lightning-induced surges. |
Applications
| Industrial Power Supply Input Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: Protecting AC/DC converter inputs against lightning-induced surges on 48 V DC distribution rails in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input terminals to clamp transients before they reach rectifier bridges and bulk capacitors. Use Value: Limits voltage to ≤64.8 V during 23.2 A surges, preventing MOSFET gate oxide rupture and electrolytic capacitor overvoltage failure. | Use Scenario: Safeguarding RS-485 transceivers and isolation amplifiers on telecom base station line cards connected to outdoor copper pairs. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor referenced to local ground, absorbing common-mode surges coupled onto differential data lines. Use Value: Achieves <1 ns response and UL 497B compliance, meeting GR-1089-CORE Level 3 surge immunity requirements for central office equipment. |
| Medical Equipment I/O Port Protection | Automotive Body Control Module Inputs |
Use Scenario: Shielding analog sensor inputs (e.g., temperature, pressure) in diagnostic imaging devices from ESD events during cable hot-plug operations. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA @ 40.2 V) TVS mounted directly at connector entry point to minimize trace inductance. Use Value: Delivers Class 3 (>16 kV HBM) ESD protection without loading precision signal paths, preserving ADC accuracy and offset stability. | Use Scenario: Protecting 12 V switched inputs (e.g., door lock actuator signals) in automotive BCMs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional clamping device installed between input pin and chassis ground to shunt negative-going spikes. Use Value: Handles 1500 W peak power and −65 °C to +175 °C operating range, satisfying AEC-Q200 stress test requirements for under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45A | Surface-mount SMB package; lower PPK = 600 W; VRWM = 45 V; VC = 70.1 V @ 8.5 A. | Designed for space-constrained PCBs; lacks UL 497B recognition; unsuitable for high-energy telecom surges. | Select when board area is limited and surge energy remains below 600 W; verify layout clearance for SMB thermal dissipation. |
| 1N6287AG | Same JEDEC device code and electrical specs; identical packaging and marking; direct manufacturer-equivalent part number. | No functional or mechanical difference; used interchangeably in ON Semiconductor documentation. | Preferred for second-source procurement where exact form-fit-function match is required without requalification. |
Compared with SMBJ45A and 1N6287AG, the 1.5KE47AG offers higher surge capacity (1500 W vs. 600 W), UL 497B certification for isolated circuits, and axial-leaded reliability in high-vibration environments - making it optimal for industrial and telecom infrastructure where robustness and regulatory alignment outweigh footprint constraints.
Availability
1.5KE47AG is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, medical I/O ports, and automotive body control modules requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE47AG 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
ON Semiconductor is a global semiconductor supplier delivering energy-efficient, high-performance silicon solutions for automotive, industrial, cloud computing, and IoT applications.
The 1.5KE47AG belongs to the 1N6267A Series Mosorb TVS family - engineered specifically for high-power, unidirectional transient suppression in harsh electromagnetic environments where reliability and regulatory compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5KE47AG under maximum rated surge current?
The 1.5KE47AG has a maximum clamping voltage (VC) of 64.8 V when subjected to its peak pulse current (IPP) of 23.2 A, measured per the 1 ms exponential waveform defined in Figure 5 of the ON Semiconductor datasheet. This value ensures protected circuits remain below critical overvoltage thresholds during standardized surge events.
Is the 1.5KE47AG RoHS compliant and lead-free?
Yes, the 1.5KE47AG is a Pb-free device, indicated by the "G" suffix in its part number. It uses ON Semiconductor's Surmetic axial-leaded plastic package (Case 41A) and complies with RoHS Directive 2011/65/EU. Lead finish is tin-plated, qualified for soldering at 260 °C for 10 seconds.
Does the 1.5KE47AG meet UL safety standards?
Yes, the 1.5KE47AG is UL Recognized under UL 497B (File #E210057) for protector applications, covering isolated loop circuit protection. This certification applies across the full 1.5KE6.8A–1.5KE250A series and validates performance in strike voltage breakdown, endurance conditioning, and dielectric withstand tests.
What is the maximum working peak reverse voltage (VRWM) for the 1.5KE47AG?
The 1.5KE47AG has a specified working peak reverse voltage (VRWM) of 40.2 V. This is the highest continuous DC or peak AC voltage the device can block without entering breakdown - a critical parameter for selecting appropriate TVS voltage rating relative to system operating voltage.
Can the 1.5KE47AG be used in bidirectional protection configurations?
No, the 1.5KE47AG is a unidirectional TVS diode and must be used with correct polarity - cathode connected to the protected line, anode to ground. For bidirectional protection, a dedicated bidirectional variant (e.g., 1.5KE47A) or back-to-back configuration would be required; the 1.5KE47AG does not conduct symmetrically in reverse bias.
1.5KE47AG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AD, Axial
- Series:
- Mosorb™
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1.5KE47AG FAQ
1.How can I place an order for 1.5KE47AG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE47AG 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 1.5KE47AG reliable?
The price and inventory of 1.5KE47AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE47AG is usually 5 days.
3.What payment methods are accepted for 1.5KE47AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE47AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE47AG?
1.5KE47AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE47AG 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 1.5KE47AG?
For technical support, including 1.5KE47AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE47AG requirements.
6.How does Aetrix verify that 1.5KE47AG is sourced from the original manufacturer or authorized distributors?
All 1.5KE47AG 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 1.5KE47AG meets industry standards.
7.What is the process for return or replacement of 1.5KE47AG?
All 1.5KE47AG units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE47AG, 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 1.5KE47AG part is unused and in its original packaging.
Return procedure for 1.5KE47AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE47AG Tags
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