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Diodes Incorporated 1.5KE110A-T
- Part No.:
- 1.5KE110A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110A-T.pdf
- Description:
- TVS DIODE 94VWM 152VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:6,805
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Product details
Overview
1.5KE110A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 94.0V reverse standoff voltage, 105.0V minimum breakdown voltage at 1.0mA test current, 152.0V maximum clamping voltage at 9.9A peak pulse current, and operates across –55°C to +175°C.
For engineers reviewing the 1.5KE110A-T datasheet, 1.5KE110A-T pinout, 1.5KE110A-T application, or 1.5KE110A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current handling under IEC 61000-4-5 surge waveforms, thermal derating above +25°C, and axial lead solderability per MIL-STD-202 Method 208.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped crowbar device triggered by transient overvoltage events exceeding its reverse standoff threshold. Its glass-passivated silicon junction ensures stable breakdown characteristics and low leakage (<5.0μA at 94.0V).
The device responds within <1.0ns to ESD or lightning-induced surges and sustains 1500W peak pulse power for 1.0ms (non-repetitive), with steady-state power dissipation rated at 5.0W at 75°C lead temperature. Its voltage temperature coefficient is +0.107%/°C, enabling predictable clamping behavior across industrial temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms pulse - handles IEC 61000-4-5 Level 4 (4kV/2Ω) surge without failure |
| Reverse Standoff Voltage | 94.0V - maximum continuous DC operating voltage before significant leakage |
| Breakdown Voltage | 105.0V min @ 1.0mA - guaranteed conduction onset under transient stress |
| Clamping Voltage | 152.0V max @ 9.9A - limits downstream voltage to safe level during surge |
| Peak Pulse Current | 9.9A @ 1.0ms - quantifies surge energy absorption capacity |
| Operating Temperature | –55°C to +175°C - supports under-hood automotive and industrial power supply designs |
| Leakage Current | ≤5.0μA @ 94.0V - ensures minimal standby power loss in always-on systems |
Pinout & Package
Package: DO-201 axial-leaded glass-passivated epoxy package (UL 94V-0 rated), 1.12g weight, 25.4mm overall length, 8.5–9.53mm body diameter, 0.96–1.06mm lead diameter, 4.8–5.21mm lead spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during forward conduction | Connected to system ground or low-side reference in unidirectional clamp configuration |
| Cathode | Protected line connection point | Marked with band; ties to rail requiring overvoltage protection (e.g., 48V DC input) |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable breakdown voltage and long-term reliability under thermal cycling |
| 1500W peak pulse rating | Supports robust protection against IEC 61000-4-5 surge waveforms without degradation |
| Fast response time <1.0ns | Clamps transients before sensitive downstream components experience overstress |
| RoHS-compliant, halogen-free finish | Meets automotive and industrial environmental compliance requirements (Br+Cl <1500ppm) |
| Axial leads, solderable per MIL-STD-202 | Enables reliable through-hole assembly and high-current mechanical anchoring |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) CAN Bus Line Protection |
|---|---|
Use Scenario: 48V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role: Primary overvoltage clamp limiting rail voltage to ≤152V during 100A/10ms load dump events. Use Value: Prevents damage to upstream rectifier diodes and downstream DC-DC controllers by absorbing up to 1500W surge energy. |
Use Scenario: 12V supply rail feeding CAN transceiver in vehicle door module subject to ISO 7637-2 Pulse 5a (load dump). IC Role / Device Role: Unidirectional TVS placed between VCC and GND to clamp supply overvoltage before it reaches transceiver VIO pins. Use Value: Maintains CAN bus functionality by holding rail voltage below 152V during 60V/100ms transients, avoiding brownout or latch-up. |
| Telecom AC-DC Adapter Surge Protection | Renewable Energy Inverter DC Link Protection |
Use Scenario: Secondary-side 24V output of telecom wall adapter subjected to conducted surges via IEC 61000-4-5 coupling networks. IC Role / Device Role: Final-stage TVS on regulated output rail, positioned after bulk capacitor and before connector. Use Value: Limits transient overshoot to <152V, protecting connected PoE injectors and Ethernet PHYs from EOS damage. |
Use Scenario: 600V DC link in solar microinverter exposed to lightning-induced surges on PV string inputs. IC Role / Device Role: Cascaded TVS (with higher-voltage devices) providing secondary clamping layer alongside MOVs and GDTs. Use Value: Adds precise low-clamp-voltage layer to reduce stress on IGBT gate drivers and DC-link capacitors during fast-rising transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | DO-214AA package, 1.0kW rating, 152V clamping at 6.6A, lower surge capacity | Surface-mount alternative for space-constrained PCBs; not suitable for >1.5kW surge duty | Select when board area is limited and peak surge energy does not exceed 1.0kJ (1.0ms @ 6.6A) |
| 1.5SMC110A | SMD DO-214AB package, same 1500W rating, identical electrical specs, but SMT-compatible | Drop-in replacement for automated assembly; requires reflow profile validation for axial-to-SMT transition | Choose for new designs targeting full SMT production; verify thermal pad layout matches 1.5SMC thermal resistance |
Compared with 1.5KE110A-T, SMBJ110A offers smaller footprint but reduced surge margin, while 1.5SMC110A delivers identical protection in surface-mount form-enabling direct substitution only where mechanical mounting and thermal path constraints permit.
Availability
1.5KE110A-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom adapters, and renewable energy inverters requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE110A-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The 1.5KE series was developed specifically for high-energy transient suppression in harsh-environment applications including automotive, industrial, and telecom infrastructure-emphasizing rugged packaging, wide temperature operation, and repeatable clamping performance.
FAQ
What is the difference between 1.5KE110A and 1.5KE110CA?
The 1.5KE110A is unidirectional, with cathode marked by a band and intended for DC rail protection where polarity is fixed. The 1.5KE110CA is bidirectional, lacking polarity marking, and used in AC-coupled or differential signal lines like RS-485 or CAN where voltage swings occur in both directions. Their clamping voltages and surge ratings are identical.
Can 1.5KE110A-T be used in place of 1.5KE110A-B?
Yes-both share identical electrical specifications and DO-201 packaging. The suffix "-T" denotes 1k tape-and-reel packaging, while "-B" indicates bulk packaging. Mechanical dimensions, thermal performance, and surge capability are fully interchangeable; only logistics and assembly method differ.
Is 1.5KE110A-T compliant with AEC-Q200?
No-1.5KE110A-T is not AEC-Q200 qualified. Diodes Incorporated explicitly states that AEC-Q200 qualification requires special change control, PPAP capability, and IATF 16949 manufacturing; this part is standard commercial-grade. For automotive-qualified equivalents, contact Diodes' automotive team directly.
How does temperature affect the clamping voltage of 1.5KE110A-T?
Clamping voltage increases with junction temperature at +0.107%/°C. At +125°C, clamping rises ~5.4% above room-temperature value (152.0V → ~160.3V). Designers must ensure worst-case clamping remains below protected IC absolute maximum ratings, especially in high-ambient environments like engine compartments.
1.5KE110A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE110A-T FAQ
1.How can I place an order for 1.5KE110A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110A-T 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 1.5KE110A-T reliable?
The price and inventory of 1.5KE110A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE110A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110A-T?
1.5KE110A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110A-T 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 1.5KE110A-T?
For technical support, including 1.5KE110A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110A-T requirements.
6.How does Aetrix verify that 1.5KE110A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE110A-T 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 1.5KE110A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE110A-T?
All 1.5KE110A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110A-T, 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 1.5KE110A-T part is unused and in its original packaging.
Return procedure for 1.5KE110A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110A-T Tags
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