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onsemi 1.5KE100A
- Part No.:
- 1.5KE100A
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100A.pdf
- Description:
- TRANS VOLTAGE SUPPRESSOR DIODE,
- Quantity:
- Payment:
- Shipping:
Inventory:9,965
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Product details
Overview
1.5KE100A from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against ESD, lightning-induced surges, and inductive switching transients. It features a 85.5 V working peak reverse voltage (VRWM), 100 V nominal breakdown voltage (VBR), 137 V maximum clamping voltage (VC) at 11 A peak pulse current (IPP), and sub-1 ns response time - deployed in power supplies, industrial controls, and medical equipment input stages.
For engineers reviewing the 1.5KE100A datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to system operating voltage, surge current capability under 1 ms 8.3 ms half-sine waveform, UL 497B certification for isolated loop protection, and axial leaded Surmetic package compatibility with through-hole PCB assembly.
Technical Context
The 1.5KE100A operates as a Zener-based avalanche clamp: under normal bias it presents <5 µA leakage above VRWM; during transients exceeding VBR, it avalanches into low-impedance conduction, limiting voltage to ≤137 V at 11 A IPP. Its thermal resistance (RJL = 20 °C/W) and 5.0 W steady-state dissipation at 75 °C enable reliable operation in thermally constrained environments.
Designed for unidirectional protection only, it requires cathode-anode polarity alignment with circuit ground reference. The device meets Class 3 ESD immunity (>16 kV HBM) and is UL 497B recognized for isolated loop circuit protection - critical for telecom interfaces and sensor front-ends where galvanic isolation integrity must be preserved during surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - sustains single high-energy surges without failure, e.g., lightning-induced line transients. |
| Working Peak Reverse Voltage (VRWM) | 85.5 V - maximum continuous DC or peak AC voltage the device blocks without leakage exceeding 5 µA. |
| Breakdown Voltage (VBR) | 100 V (nominal), min 95 V / max 105 V @ 1 mA - defines precise avalanche onset threshold for predictable clamping. |
| Clamping Voltage (VC) | 137 V @ 11 A IPP - maximum voltage seen by protected circuit during full-rated surge, enabling safe margin over 85.5 V system rail. |
| Response Time | <1 ns - ensures clamping activation before transient energy damages downstream CMOS/MOS ICs. |
| Leakage Current | <5 µA @ 85.5 V - negligible standby power loss and no signal distortion in high-impedance monitoring paths. |
| UL Recognition | UL 497B QVGV2 - certified for use in safety-critical isolated loop protectors, not just flammability compliance. |
Pinout & Package
Package: Axial-leaded Surmetic plastic case (Case 41A), Pb-free (G suffix), cathode indicated by band. Mounting position unrestricted; max solder temperature 230°C at 1/16″ from case for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to system ground or low-side reference; completes clamping loop during surge conduction. |
| Cathode | Protected line connection | Connected to line being protected (e.g., +VIN); polarity band identifies this terminal for correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse rating | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges without derating or parallel devices. |
| UL 497B recognition | Validates suitability for certified isolated loop protectors in industrial automation and process control systems. |
| ESD Class 3 (>16 kV HBM) | Eliminates need for secondary ESD protection on board-level interfaces handling human contact. |
| Low zener impedance | Ensures stable clamping voltage across varying surge currents - critical for protecting tight-tolerance analog inputs. |
| Pb-free Surmetic package | Complies with RoHS and J-STD-020 reflow profiles while maintaining mechanical robustness for through-hole assembly. |
Applications
| Industrial Power Supply Input | Medical Equipment Mains Interface |
|---|---|
Use Scenario: AC-DC power supply front-end subjected to lightning-induced surges on 230 VAC mains input. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across bridge rectifier output to limit transient overvoltage before bulk capacitor and controller IC. Use Value: Clamps 11 A surge to ≤137 V, preventing overvoltage damage to 400 V-rated electrolytic capacitors and PWM controllers. |
Use Scenario: Patient-connected diagnostic device with isolated power supply requiring UL 497B-compliant surge protection on secondary side. IC Role / Device Role / Timing Role: TVS diode installed across isolated DC output rails to absorb coupling transients from primary-side switching noise or external ESD. Use Value: UL 497B certification ensures compliance with medical safety standards for isolated loop protection, avoiding redesign for regulatory approval. |
| Programmable Logic Controller I/O | Telecom Line Card Protection |
Use Scenario: Digital input module receiving 24 VDC signals from field sensors exposed to inductive kickback and cable-borne transients. IC Role / Device Role / Timing Role: 1.5KE100A mounted directly at connector entry point to shunt transients before signal conditioning circuitry. Use Value: Sub-1 ns response prevents latch-up in 3.3 V logic buffers; 85.5 V VRWM allows safe operation with 24 V nominal rail plus tolerance. |
Use Scenario: DSL line card interface handling tip/ring lines subject to longitudinal surges per GR-1089-CORE. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (one per line) referenced to isolated ground plane to suppress common-mode surges. Use Value: 137 V clamping voltage provides margin above 100 V ringing voltage while meeting ITU-T K.20 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | Surface-mount SMB package; same 100 V VBR but lower 600 W peak power rating. | Requires PCB layout change; suitable for space-constrained designs where axial leads are impractical. | Select when board space is limited and surge energy is ≤600 W; verify thermal pad design for 5.0 W steady-state dissipation. |
| 1.5KE100CA | Bi-directional variant with identical VRWM/VBR/VC ratings but symmetrical clamping for AC or floating lines. | Used where line polarity is undefined or bidirectional transients occur (e.g., RS-485 bus lines). | Choose only if protecting AC-coupled or differential signals; unidirectional 1.5KE100A is more efficient for DC rails with defined ground reference. |
Compared with SMBJ100A, the 1.5KE100A delivers 2.5× higher surge energy handling in axial form; versus 1.5KE100CA, it offers lower capacitance and tighter leakage for DC rail protection, but lacks AC symmetry - making it optimal for fixed-polarity power inputs where UL 497B certification and 1500 W headroom are mandatory.
Availability
1.5KE100A is available at Aetrix Electronics and suitable for industrial power supplies, medical equipment interfaces, programmable logic controller I/O modules, and telecom line cards requiring stable component supply with full regulatory documentation and traceable sourcing.
Supply support for 1.5KE100A 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 (now onsemi) is a global semiconductor manufacturer specializing in power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and medical markets.
The 1.5KE100A belongs to the 1.5KE Series Mosorb transient voltage suppressors - engineered for cost-effective, high-reliability overvoltage protection in high-surge industrial and medical systems using axial-leaded packaging.
FAQ
What is the maximum clamping voltage of the 1.5KE100A under rated surge conditions?
The 1.5KE100A has a maximum clamping voltage (VC) of 137 V when subjected to its rated 11 A peak pulse current (IPP) with a 1 ms waveform. This value is measured per Figure 5 in the official datasheet and represents the highest voltage the protected circuit will experience during a full-rated transient event - critical for ensuring downstream components remain within their absolute maximum voltage ratings.
Does the 1.5KE100A meet UL 497B certification, and what does that mean for my design?
Yes, the 1.5KE100A is UL 497B recognized (File #E210057, QVGV2 category) for isolated loop circuit protection. This certification confirms successful completion of rigorous tests including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge validation - meaning the 1.5KE100A can be used in safety-critical isolated interfaces without requiring additional third-party evaluation for surge protection compliance.
Can the 1.5KE100A be used in bidirectional signal lines like RS-485?
No - the 1.5KE100A is unidirectional and must be oriented with cathode toward the protected line and anode to ground. For bidirectional lines such as RS-485, use the bi-directional variant 1.5KE100CA instead. Using the 1.5KE100A on AC or floating signals risks forward conduction during negative transients, leading to incorrect clamping behavior and potential device failure.
What is the thermal resistance and steady-state power rating of the 1.5KE100A?
The 1.5KE100A has a junction-to-lead thermal resistance (RJL) of 20 °C/W and a steady-state power dissipation (PD) of 5.0 W at lead temperature (TL) ≤ 75 °C. Derating begins above 75 °C at 20 mW/°C, allowing safe continuous operation in ambient temperatures up to 175 °C when properly heatsinked via leads - essential for high-reliability industrial power supply designs.
How does the 1.5KE100A compare to the SMBJ100A in terms of surge handling and package?
The 1.5KE100A delivers 1500 W peak pulse power in an axial-leaded Surmetic package, whereas the SMBJ100A provides only 600 W in a surface-mount SMB package. While both share 100 V nominal breakdown voltage, the 1.5KE100A's higher energy rating and through-hole mechanical stability make it preferable for high-surge industrial mains inputs, while the SMBJ100A suits compact DC-DC converter outputs where board space is constrained.
1.5KE100A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 11.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -50°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE100A FAQ
1.How can I place an order for 1.5KE100A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100A 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 1.5KE100A reliable?
The price and inventory of 1.5KE100A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE100A is usually 5 days.
3.What payment methods are accepted for 1.5KE100A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100A?
1.5KE100A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100A 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 1.5KE100A?
For technical support, including 1.5KE100A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100A requirements.
6.How does Aetrix verify that 1.5KE100A is sourced from the original manufacturer or authorized distributors?
All 1.5KE100A 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 1.5KE100A meets industry standards.
7.What is the process for return or replacement of 1.5KE100A?
All 1.5KE100A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100A, 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 1.5KE100A part is unused and in its original packaging.
Return procedure for 1.5KE100A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100A Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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