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NXP Semiconductors BYM359X-1500,127
- Part No.:
- BYM359X-1500,127
- Manufacturer:
- NXP Semiconductors
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
BYM359X-1500,127.pdf
- Description:
- DIODE ARRAY GP 800V 8A TO-220F
- Quantity:
- Payment:
- Shipping:
Inventory:9,921
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Product details
Overview
BYM359X-1500,127 from NXP (formerly Philips Semiconductors) is a dual fast-recovery diode in a single SOT186A package, integrating a 1500 V damper diode and an 800 V modulator diode for horizontal deflection circuits. Confirmed parameters: VR = 1500 V (damper), trr ≤ 300 ns (damper), VF ≤ 1.45 V at 6.5 A, IFSM = 60 A, isolated mounting tab.
For engineers reviewing the BYM359X-1500,127 datasheet, BYM359X-1500,127 pinout, BYM359X-1500,127 application, or BYM359X-1500,127 equivalent, key selection criteria include peak reverse voltage split between damper/modulator paths, soft recovery behavior for EMI reduction, thermal resistance to heatsink (Rth j-hs = 4.8 K/W), and isolation voltage rating (Visol = 2500 V RMS).
Technical Context
The BYM359X-1500,127 implements two functionally distinct diodes on one die: a high-voltage damper path rated at 1500 V VRRM and 300 ns max trr, and a lower-voltage modulator path rated at 800 V VRRM and 145 ns max trr. Both share a common anode/cathode terminal (Pin 2), enabling compact horizontal deflection flyback and scan modulation in CRT systems.
Its SOT186A package features an electrically isolated seating plane, allowing direct mechanical mounting to a heatsink without insulating washers. The device operates up to TJ = 150 °C and supports sinusoidal and square-wave current waveforms with form factor a = 1.57 and duty cycle D = 1.0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Damper) | 1500 V - withstands peak flyback voltage in CRT horizontal deflection without breakdown |
| VR (Modulator) | 800 V - supports scan modulation voltage in PC monitor and color TV applications |
| trr (Damper) | ≤300 ns - enables fast switching at 16–56 kHz deflection frequencies with low switching loss |
| VF @ 6.5 A | ≤1.45 V - reduces conduction loss and thermal stress during high-current flyback discharge |
| Rth j-hs | 4.8 K/W - allows efficient heat transfer to external heatsink when mounted with thermal compound |
| Visol | 2500 V RMS - provides reinforced insulation between terminals and heatsink for safety compliance |
| Cisol | ≤10 pF - minimizes capacitive coupling noise from high-dV/dt deflection signals to chassis |
Pinout & Package
SOT186A plastic envelope with isolated mounting tab; 3-pin leaded package, 15.8 mm length, 10.3 mm height, 2 g mass. Seating plane is electrically isolated from all terminals per Fig.14.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Damper cathode | Output node of damper diode; connects to flyback transformer primary return |
| 2 | Common anode/cathode | Shared terminal: anode for damper, cathode for modulator - enables dual-path integration |
| 3 | Modulator anode | Input node of modulator diode; connects to horizontal output transistor collector |
Key Features
| Feature | Design Value |
|---|---|
| Soft recovery characteristic | Reduces EMI generation during turn-off by limiting di/dt overshoot and voltage ringing |
| Isolated mounting tab | Eliminates need for insulating pads or mica washers when bolted to heatsink |
| Low forward voltage | VF ≤ 1.45 V at 6.5 A lowers power dissipation and improves thermal margin in continuous operation |
| High thermal cycling performance | Rated for repeated thermal stress in CRT deflection circuits operating at 150 °C junction temperature |
Applications
| Color TV Horizontal Deflection | PC Monitor Flyback Circuit |
|---|---|
Use Scenario: High-frequency horizontal scanning (15.625 kHz) with rapid flyback energy recovery. IC Role / Device Role / Timing Role: Dual diode functions as damper (clamps flyback voltage) and modulator (controls scan amplitude). Use Value: Integrated damper/modulator eliminates discrete component count and layout area while maintaining 1500 V/800 V voltage separation. | Use Scenario: 31.5 kHz horizontal deflection in SVGA monitors requiring stable beam modulation. IC Role / Device Role / Timing Role: BYM359X-1500,127 serves as combined damper and modulator in quasi-resonant flyback topology. Use Value: Soft recovery and 300 ns trr limit EMI emissions during high-dV/dt flyback transitions. |
| Industrial CRT Display Systems | Legacy Broadcast Equipment |
Use Scenario: Ruggedized CRT-based instrumentation displays operating in wide ambient temperature ranges. IC Role / Device Role / Timing Role: Provides isolated, high-reliability damper/modulator function with 2500 V RMS isolation to chassis ground. Use Value: Isolated seating plane and 150 °C junction rating ensure long-term stability under thermal cycling stress. | Use Scenario: Analog broadcast transmitters and test equipment using CRT-based waveform monitoring. IC Role / Device Role / Timing Role: BYM359X-1500,127 delivers precise timing control via modulator path while handling high-energy flyback pulses. Use Value: Matched dynamic characteristics (Qs = 2.0 µC damper, 0.7 µC modulator) enable consistent pulse shaping across service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual fast-recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BYM359-1500,118 | Same die, identical electrical specs, but non-isolated SOT186A variant (no isolated tab) | Requires insulating hardware for heatsink mounting; unsuitable where creepage/clearance mandates isolation | Select BYM359X-1500,127 when heatsink isolation is required; use BYM359-1500,118 only if mechanical isolation is handled externally |
| BYW98-200 | Single 200 V diode, no modulator path; trr = 50 ns, VF = 1.15 V @ 8 A - faster but lower voltage rating | Cannot replace dual-function role; only suitable as damper-only replacement with derated voltage margin | Use only as partial substitute in non-modulator designs; requires redesign to accommodate separate modulator circuit |
Compared with BYM359-1500,118 and BYW98-200, the BYM359X-1500,127 uniquely integrates isolated dual-diode functionality - enabling single-component CRT deflection solutions where voltage separation, soft recovery, and heatsink isolation are simultaneously required.
Availability
BYM359X-1500,127 is available at Aetrix Electronics and suitable for color TV deflection circuits, PC monitor flyback systems, and industrial CRT display designs requiring stable component supply and long-lifecycle support.
Supply support for BYM359X-1500,127 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
NXP Semiconductors is a global semiconductor company formed from the spin-off of Philips' semiconductor division, specializing in high-reliability analog and power devices for automotive, industrial, and legacy display markets.
The BYM359X series was developed specifically for horizontal deflection in CRT-based color TVs and PC monitors, targeting 16–56 kHz operation with integrated damper/modulator functionality and reinforced electrical isolation.
FAQ
What is the maximum junction temperature rating for BYM359X-1500,127?
The BYM359X-1500,127 has a maximum operating junction temperature of 150 °C, as specified in the Limiting Values table. This rating applies to both damper and modulator sections and is validated under conditions including heatsink mounting with thermal compound and sinusoidal current waveforms. Thermal design must ensure TJ does not exceed this limit during peak surge or continuous operation.
Does BYM359X-1500,127 support both damper and modulator functions in the same package?
Yes, the BYM359X-1500,127 integrates two independent diodes: a 1500 V damper diode (Pins 1–2) and an 800 V modulator diode (Pins 2–3), sharing Pin 2 as common anode/cathode. This dual-path architecture is explicitly defined in the General Description and Pinning section of the Philips datasheet, enabling compact horizontal deflection circuitry in CRT systems.
What is the isolation voltage rating between terminals and heatsink for BYM359X-1500,127?
The BYM359X-1500,127 provides 2500 V RMS isolation voltage (Visol) from all three terminals to an external heatsink, measured at 50–60 Hz sinusoidal waveform under 65% relative humidity. This isolation is enabled by the electrically isolated seating plane in the SOT186A package, eliminating need for insulating hardware in compliant designs.
What is the reverse recovery time (trr) specification for the damper section of BYM359X-1500,127?
The damper section of BYM359X-1500,127 has a maximum reverse recovery time of 300 ns, measured at IF = 1 A, VR ≥ 30 V, and -dIF/dt = 50 A/µs, per the Dynamic Characteristics table. A typical value of 200 ns is also provided, confirming fast, soft recovery behavior critical for EMI control in horizontal deflection applications.
Can BYM359X-1500,127 be used in modern LCD or LED display power supplies?
The BYM359X-1500,127 is optimized for CRT horizontal deflection circuits operating at 16–56 kHz and is not recommended for modern switch-mode power supplies in LCD/LED displays. Its voltage ratings, soft recovery profile, and dual-diode topology align specifically with flyback transformer energy recovery and scan modulation - functions absent in contemporary display architectures.
BYM359X-1500,127 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io) (per Diode):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.55 V @ 6.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 300 ns
- Current - Reverse Leakage @ Vr:
- 100 µA @ 800 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220F
BYM359X-1500,127 FAQ
1.How can I place an order for BYM359X-1500,127 through Aetrix?
Please submit a Request for Quotation (RFQ) for BYM359X-1500,127 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 BYM359X-1500,127 reliable?
The price and inventory of BYM359X-1500,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYM359X-1500,127 is usually 5 days.
3.What payment methods are accepted for BYM359X-1500,127?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYM359X-1500,127 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYM359X-1500,127?
BYM359X-1500,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYM359X-1500,127 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 BYM359X-1500,127?
For technical support, including BYM359X-1500,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYM359X-1500,127 requirements.
6.How does Aetrix verify that BYM359X-1500,127 is sourced from the original manufacturer or authorized distributors?
All BYM359X-1500,127 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 BYM359X-1500,127 meets industry standards.
7.What is the process for return or replacement of BYM359X-1500,127?
All BYM359X-1500,127 units undergo pre-shipment inspection (PSI). If there is an issue with BYM359X-1500,127, 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 BYM359X-1500,127 part is unused and in its original packaging.
Return procedure for BYM359X-1500,127:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BYM359X-1500,127 Tags
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