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onsemi 1.5KE36AG
- Part No.:
- 1.5KE36AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE36AG.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:14,158
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Product details
Overview
1.5KE36AG 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 36 V breakdown voltage (VBR = 34.2–37.8 V @ IT = 1 A), 49.9 V maximum clamping voltage (VC) at 30 A peak pulse current (IPP), and <1 ns response time - deployed in power supplies, industrial controls, and medical equipment input stages.
For engineers reviewing the 1.5KE36AG datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (VRWM = 30.8 V), clamping ratio (VC/VBR ≈ 1.46), UL 497B recognition for isolated loop circuits, and axial leaded Surmetic CASE 41A package compatibility with through-hole PCB layouts.
Technical Context
The 1.5KE36AG operates as a Zener-based avalanche clamp, triggered when reverse voltage exceeds its specified VBR range. Its low dynamic impedance (<1 Ω typical above VBR) ensures rapid transition into conduction during transients, limiting voltage overshoot across protected circuitry.
It delivers 1500 W nonrepetitive peak pulse power (tP = 1 ms, 10/1000 µs waveform), with thermal resistance RJL = 20 °C/W enabling effective heat transfer to leads. The device sustains 200 A forward surge current (8.3 ms half-sine) and exhibits <5 µA leakage at 30.8 V, supporting stable DC bias integrity in always-on protection schemes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 30.8 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system DC bus or signal rail rating. |
| VBR @ IT = 1 A | 34.2–37.8 V - Breakdown threshold tolerance; defines precise turn-on window for predictable clamping onset. |
| VC @ IPP = 30 A | 49.9 V - Maximum clamped voltage during 1 ms surge; determines worst-case overvoltage seen by downstream ICs. |
| PPK | 1500 W - Peak transient energy absorption capacity; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| Response Time | <1 ns - Enables suppression of fast-rising ESD events (IEC 61000-4-2) before damage occurs to CMOS/MOS inputs. |
| Leakage @ VRWM | <5 µA - Negligible standby current draw; avoids loading precision reference or high-impedance sensor nodes. |
| UL Recognition | UL 497B QVGQ2 - Certified for isolated loop circuit protection; validates compliance in telecom and industrial safety-critical designs. |
Pinout & Package
1.5KE36AG uses an axial-leaded, Pb-free Surmetic plastic package (CASE 41A), with cathode indicated by a polarity band. Leads are corrosion-resistant and solderable at 260°C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; grounded or connected to low-side return path in clamping configuration. | Enables bidirectional surge shunting only when paired with complementary device; used as reference node in single-diode unidirectional setup. |
| Cathode | Protected line connection; tied to voltage rail or signal line requiring transient suppression. | Clamps voltage to VC when transient exceeds VRWM; polarity band must align with circuit's intended reverse-bias orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports high-energy surge immunity per IEC 61000-4-5 without derating at 25°C ambient. |
| ESD rating >16 kV HBM | Meets or exceeds Class 3 ESD robustness for handling and board-level integration without additional pre-protective measures. |
| Low zener impedance | Ensures minimal voltage rise under surge current, maintaining tight clamping margin between VBR and VC. |
| UL 497B certification | Validates suitability for telecom and industrial isolated-loop interfaces where regulatory approval is mandatory. |
| Surmetic axial package | Offers mechanical ruggedness, void-free molding, and reliable long-term solder joint integrity in vibration-prone environments. |
Applications
| AC/DC Power Supply Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Installed across AC mains rectifier output or DC bus rails to absorb line-to-line and line-to-ground surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed in parallel with bulk capacitor and upstream bridge rectifier. Use Value: Limits transient overvoltage to ≤49.9 V during 1 kV/0.5 kA surge, preventing MOSFET gate oxide rupture and controller latch-up. | Use Scenario: Mounted at terminal blocks of programmable logic controller digital input modules receiving 24 V DC field signals. IC Role / Device Role / Timing Role: Standoff protector on each channel, referenced to common ground with series current-limiting resistor. Use Value: Withstands repetitive 100 A/10 ms surges induced by relay coil de-energization while maintaining <5 µA leakage during normal operation. |
| Medical Equipment ESD Shielding | Telecom Line Interface Protection |
Use Scenario: Integrated on front-panel USB, RS-232, or analog sensor ports of diagnostic imaging systems. IC Role / Device Role / Timing Role: First-stage ESD clamp before EMI filter and signal conditioning amplifier. Use Value: Clamps 15 kV contact discharge (IEC 61000-4-2) within <1 ns, preserving signal integrity and avoiding false triggers in low-noise amplifiers. | Use Scenario: Applied on tip/ring lines of isolated telephone interface circuits compliant with UL 497B requirements. IC Role / Device Role / Timing Role: Primary surge limiter in protected secondary-side loop, coordinated with gas discharge tube (GDT) upstream. Use Value: Provides fast-response clamping to hold voltage below 50 V during lightning-induced transients, meeting UL 497B strike voltage and endurance test criteria. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Surface-mount SMB package; lower PPK = 600 W; VC = 58.1 V @ 10.3 A. | Requires PCB rework for SMT layout; suited for space-constrained consumer electronics rather than industrial through-hole assemblies. | Select SMBJ36A only if board real estate is limited and surge energy does not exceed 600 W. |
| 1.5KE36A | Same electrical specs and CASE 41A package; differs only in RoHS compliance status (non-Pb-free). | No functional or layout impact; suitable where legacy Pb-containing assembly processes remain in use. | Choose 1.5KE36A only if Pb-free sourcing is not required and existing inventory allows. |
Compared with SMBJ36A and 1.5KE36A, the 1.5KE36AG provides identical clamping performance and through-hole mounting in a certified Pb-free package, making it optimal for new industrial designs requiring UL 497B compliance and RoHS adherence without sacrificing surge margin.
Availability
1.5KE36AG is available at Aetrix Electronics and suitable for AC/DC power supply input protection, industrial PLC digital I/O protection, and medical equipment ESD shielding requiring stable component supply and full regulatory traceability.
Supply support for 1.5KE36AG 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 energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The 1.5KE36AG belongs to the 1.5KE Series Mosorb TVS family, engineered specifically for high-reliability, high-power transient suppression in harsh industrial and medical environments where UL recognition and axial-leaded robustness are critical.
FAQ
What is the clamping voltage of the 1.5KE36AG under maximum rated surge current?
The 1.5KE36AG has a maximum clamping voltage (VC) of 49.9 V when subjected to a 30 A peak pulse current (IPP) with a 1 ms pulse width. This value is measured per the standard 10/1000 µs waveform and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. Designers use this parameter to verify that downstream components remain within their absolute maximum voltage ratings during surge conditions. The 1.5KE36AG maintains this clamping performance consistently across its qualified temperature range.
Does the 1.5KE36AG meet UL 497B certification for isolated loop protection?
Yes, the 1.5KE36AG is explicitly listed under UL 497B (File #E210057, category QVGQ2) for isolated loop circuit protection. This certification covers performance validation across multiple tests including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge reliability. UL 497B recognition applies to the full 1.5KE6.8A through 1.5KE250A series, confirming the 1.5KE36AG's suitability for telecom, industrial control, and medical isolation barrier applications where regulatory compliance is mandatory.
What is the working peak reverse voltage (VRWM) specification for the 1.5KE36AG?
The working peak reverse voltage (VRWM) for the 1.5KE36AG is 30.8 V. This is the maximum continuous DC or peak AC voltage the device can withstand in reverse bias without entering significant conduction. It serves as the primary selection criterion when matching the 1.5KE36AG to a protected line - for example, it is appropriate for 24 V DC systems with 30% tolerance margins or rectified 24 V AC supplies. Operating above VRWM risks premature clamping and increased leakage, so proper derating is essential in thermal or voltage-tolerant designs.
How does the 1.5KE36AG compare to the 1.5KE36A in terms of packaging and compliance?
The 1.5KE36AG and 1.5KE36A share identical electrical specifications, axial CASE 41A package dimensions, and thermal characteristics. The sole difference is RoHS compliance: the "G" suffix in 1.5KE36AG denotes a Pb-free construction, while 1.5KE36A uses traditional leaded terminations. Both parts are mechanically interchangeable and require no PCB layout changes. The 1.5KE36AG is recommended for new designs targeting modern environmental compliance standards, whereas 1.5KE36A remains viable for legacy manufacturing lines where Pb-free reflow is not implemented.
Can the 1.5KE36AG be used in bidirectional transient protection configurations?
No, the 1.5KE36AG is a unidirectional TVS diode and is not rated for bidirectional clamping. Its design supports reverse-biased transient suppression only - forward conduction is limited to brief surge events (e.g., 200 A for 8.3 ms). For true bidirectional protection, two 1.5KE36AG devices must be connected in series opposition (anode-to-anode), or a dedicated bidirectional part such as 1.5KE36CA should be selected. Using a single 1.5KE36AG in AC-coupled or floating signal paths without proper polarity alignment may result in unintended forward conduction or failure to clamp negative transients.
1.5KE36AG 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30A
- 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
1.5KE36AG FAQ
1.How can I place an order for 1.5KE36AG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36AG 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 1.5KE36AG reliable?
The price and inventory of 1.5KE36AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE36AG is usually 5 days.
3.What payment methods are accepted for 1.5KE36AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36AG?
1.5KE36AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36AG 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 1.5KE36AG?
For technical support, including 1.5KE36AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36AG requirements.
6.How does Aetrix verify that 1.5KE36AG is sourced from the original manufacturer or authorized distributors?
All 1.5KE36AG 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 1.5KE36AG meets industry standards.
7.What is the process for return or replacement of 1.5KE36AG?
All 1.5KE36AG units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36AG, 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 1.5KE36AG part is unused and in its original packaging.
Return procedure for 1.5KE36AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36AG Tags
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onsemi
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Diodes Incorporated
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Nexperia USA Inc.
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