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onsemi 1.5KE200A
- Part No.:
- 1.5KE200A
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE200A.pdf
- Description:
- TVS DIODE 171VWM 274VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,312
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Product details
Overview
1.5KE200A 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 171 V working peak reverse voltage (VRWM), 200 V breakdown voltage (VBR) at 1 mA test current, and clamps to ≤324 V at 4.6 A peak pulse current - used in industrial power supplies, telecom line cards, and medical equipment input stages.
For engineers reviewing the 1.5KE200A datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, VRWM compatibility with DC bus voltage, surge current capability under 1 ms 8.3 ms waveform, and UL 497B recognition for isolated loop circuit protection.
Technical Context
The 1.5KE200A operates as a silicon avalanche diode with fast turn-on response (<1 ns), low dynamic impedance, and stable breakdown characteristics over temperature. Its unidirectional configuration provides reverse-biased clamping only, requiring correct polarity placement across the protected node and ground.
It complies with UL 497B for isolated loop circuit protection and meets Class 3 ESD immunity (>16 kV HBM). Thermal design must account for junction-to-lead resistance (20 °C/W) and steady-state derating above 75 °C ambient or lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - sustains single high-energy transients without failure |
| Working Peak Reverse Voltage (VRWM) | 171 V - maximum continuous DC or peak AC voltage before leakage exceeds 1000 µA |
| Breakdown Voltage (VBR) | 200 V min @ 1 mA - ensures reliable avalanche conduction onset within specified tolerance |
| Clamping Voltage (VC) | 324 V max @ IPP = 4.6 A - defines worst-case voltage seen by protected circuit during surge |
| Leakage Current (IR) | <5 µA @ 171 V - negligible standby power loss and signal integrity impact |
| Response Time | <1 ns - limits voltage overshoot before clamping engages |
| ESD Rating | Class 3 (>16 kV HBM) - qualifies for high-robustness end-equipment standards |
Pinout & Package
1.5KE200A uses an axial-leaded Surmetic plastic package (Case 41A), with cathode indicated by a colored band. Leads are tin-plated, solderable at 260 °C for 10 seconds at 1/16 inch from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction; connected to lower-potential side of protected circuit | Must be tied to ground or return path when used in standard reverse-biased clamping configuration |
| Cathode | Current exit terminal during reverse avalanche clamping; marked with polarity band | Connected to the line or node requiring overvoltage protection - determines clamping polarity |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Qualified for isolated loop circuit protection - enables use in telecom and industrial safety-critical interfaces |
| Low Clamping Ratio (VC/VBR) | 1.62 max - tight voltage control improves margin between clamp level and protected IC's absolute max rating |
| Pb-Free Axial Package | RoHS-compliant Surmetic Case 41A - supports automated through-hole assembly and long-term supply stability |
| High Surge Robustness | Withstands 1500 W non-repetitive pulses per Figure 5 waveform - suitable for Level 4 IEC 61000-4-5 testing |
| Stable Temperature Coefficient | +0.106 %/°C - predictable VBR drift over operating range simplifies thermal margining |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 24–48 V DC input stage of programmable logic controllers exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input terminals to clamp transients before they reach upstream regulators and microcontrollers. Use Value: 324 V clamping voltage ensures protected 48 V-rated DC-DC converters remain below 36 V absolute maximum rating with safety margin. |
Use Scenario: T1/E1 line interface card in central office equipment subjected to lightning-induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Primary-level surge protector in series with isolation transformer and receiver ICs. Use Value: UL 497B certification validates suitability for telecom infrastructure safety requirements and withstands repeated 10/700 µs surges. |
| Medical Equipment Mains Input | Process Control Sensor Signal Conditioning |
Use Scenario: AC/DC front-end of diagnostic imaging systems where mains-borne transients could compromise patient isolation barriers. IC Role / Device Role / Timing Role: Secondary-side TVS on rectified DC bus to suppress residual switching spikes and external surges. Use Value: Low leakage (<5 µA) prevents leakage current accumulation that could violate IEC 60601-1 patient leakage limits. |
Use Scenario: 4–20 mA current loop transmitter in hazardous area instrumentation subject to cable discharge events. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional 1.5KE200A placed across loop supply to absorb positive-going transients. Use Value: 171 V VRWM matches typical 24 V loop supply with headroom for brownout recovery and ripple peaks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200A | Same VRWM (171 V) and VC (324 V), but rated for 600 W peak power and DO-214AA package | Surface-mount alternative for space-constrained PCBs; lower surge capacity requires verification against IEC 61000-4-5 Level 3 | Select SMBJ200A when board real estate is limited and surge energy is ≤600 W; retain 1.5KE200A for legacy through-hole designs or higher-energy threats |
| 1.5KE200CA | Bidirectional variant with identical VRWM, VBR, and VC ratings; symmetric clamping for AC or floating nodes | Required where both positive and negative transients occur - e.g., AC line inputs or differential data lines | Choose 1.5KE200CA only if bidirectional protection is needed; 1.5KE200A remains optimal for DC-biased unidirectional clamping with lower cost and tighter leakage |
Compared with SMBJ200A, the 1.5KE200A delivers 2.5× higher surge energy handling in axial form; compared with 1.5KE200CA, it offers lower leakage and reduced capacitance for DC-coupled applications where polarity is fixed.
Availability
1.5KE200A is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure, medical equipment, and process control systems requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE200A 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 part of onsemi) is a global semiconductor supplier specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The 1.5KE200A belongs to the 1.5KE Series Mosorb TVS family, engineered for high-reliability, high-surge industrial and telecom protection with UL 497B certification and axial-leaded manufacturability.
FAQ
What is the clamping voltage of the 1.5KE200A and how is it measured?
The 1.5KE200A has a maximum clamping voltage (VC) of 324 V, measured at a peak pulse current (IPP) of 4.6 A using the standardized 1 ms exponential waveform per Figure 5 in the datasheet. This value represents the worst-case voltage imposed on the protected circuit during surge conditions and is critical for ensuring compatibility with downstream component voltage ratings.
Is the 1.5KE200A RoHS compliant and what package does it use?
Yes, the 1.5KE200A is RoHS compliant and supplied in a Pb-free axial-leaded Surmetic plastic package (Case 41A). The "G" suffix in variants like 1.5KE200AG confirms Pb-free construction, with tin-plated leads rated for soldering at 260 °C for 10 seconds at 1/16 inch from the case body.
Does the 1.5KE200A meet UL 497B and why does that matter?
Yes, the 1.5KE200A is UL 497B recognized (File #E210057) for isolated loop circuit protection. This certification verifies performance under strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge tests - essential for telecom, industrial control, and medical applications requiring regulatory compliance for surge protection components.
How does the 1.5KE200A differ from the bidirectional 1.5KE200CA?
The 1.5KE200A is unidirectional and clamps only reverse-voltage transients, while the 1.5KE200CA provides symmetrical clamping for both polarities. The 1.5KE200A exhibits lower reverse leakage (<5 µA @ 171 V) and is preferred for DC-biased applications such as power supply inputs; the CA version is necessary for AC lines or floating differential signals.
What is the thermal resistance and steady-state power rating of the 1.5KE200A?
The 1.5KE200A has a junction-to-lead thermal resistance (RJL) of 20 °C/W and a steady-state power dissipation (PD) of 5.0 W at TL ≤ 75 °C with 3/8-inch lead length. Power must be derated linearly above 75 °C at 20 mW/°C - critical for thermal design in enclosed or high-ambient environments.
1.5KE200A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AD, Axial
- Series:
- Mosorb™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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
1.5KE200A FAQ
1.How can I place an order for 1.5KE200A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE200A 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 1.5KE200A reliable?
The price and inventory of 1.5KE200A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE200A is usually 5 days.
3.What payment methods are accepted for 1.5KE200A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE200A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE200A?
1.5KE200A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE200A 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 1.5KE200A?
For technical support, including 1.5KE200A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE200A requirements.
6.How does Aetrix verify that 1.5KE200A is sourced from the original manufacturer or authorized distributors?
All 1.5KE200A 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 1.5KE200A meets industry standards.
7.What is the process for return or replacement of 1.5KE200A?
All 1.5KE200A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE200A, 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 1.5KE200A part is unused and in its original packaging.
Return procedure for 1.5KE200A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE200A Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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