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NXP Semiconductors BYD17G,115
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- Part No.:
- BYD17G,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Diodes
- Package:
- SOD-87
- Datasheet:
-
BYD17G,115.pdf
- Description:
- DIODE AVALANCHE 400V 1.5A MELF
- Quantity:
- Payment:
- Shipping:
Inventory:2,260
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Product details
Overview
BYD17G,115 from NXP Semiconductors (formerly Philips) is a surface-mount controlled avalanche rectifier in SOD87 glass package, rated for 400 V repetitive peak reverse voltage (VRRM), 1.5 A average forward current (IF(AV)) at 105 °C tie-point temperature, and 7 mJ non-repetitive reverse avalanche energy (ERSM). It serves as a rugged, high-temperature rectifier in DC power supplies and inductive load snubbing circuits.
For engineers reviewing the BYD17G,115 datasheet, BYD17G,115 pinout, BYD17G,115 application, or BYD17G,115 equivalent, key selection criteria include its guaranteed avalanche energy absorption, low leakage (≤1 µA at 400 V, 25 °C), 3 µs reverse recovery time, glass passivation, and hermetic Implotec™ cavity-free construction - critical for reliability in automotive and industrial switching environments.
Technical Context
The BYD17G,115 operates as a unidirectional silicon rectifier with controlled avalanche capability, enabling safe clamping of inductive turn-off transients without external suppressors. Its thermal design relies on tie-point mounting (Rth j-tp = 30 K/W) and is validated for junction temperatures up to +175 °C.
It features a low forward voltage drop (VF ≤ 1.05 V at 1 A, 25 °C), tight reverse breakdown tolerance (V(BR)R = 450 V at IR = 0.1 mA), and stable diode capacitance (Cd = 21 pF at 0 V, 1 MHz), making it suitable for medium-frequency flyback and snubber applications where predictable clamping and minimal parasitic capacitance are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse voltage the device withstands without breakdown during normal operation |
| IF(AV) | 1.5 A at Ttp = 105 °C - average forward current sustainable with proper PCB thermal management |
| ERSM | 7 mJ - guaranteed single-pulse avalanche energy absorption under inductive switching (L = 120 mH) |
| V(BR)R | 450 V at IR = 0.1 mA - precise reverse breakdown threshold for reliable clamping |
| trr | 3 µs - reverse recovery time enabling use in <1 MHz switching topologies |
| Rth j-tp | 30 K/W - thermal resistance from junction to tie-point, defining PCB copper area requirements |
| IR | ≤1 µA at VR = 400 V, 25 °C - low leakage ensures minimal standby power loss |
Pinout & Package
Package: SOD87 - hermetically sealed, cavity-free cylindrical glass package using Implotec™ technology; cathode marked with band; dimensions: D = 2.0 mm, L = 3.5 mm, H = 2.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to lower-potential side of load or source in rectification path |
| Cathode | Forward current exit / avalanche clamping node | Marked with band; connected to higher-potential node; absorbs inductive kick during switch-off |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivation | Hermetic protection against moisture and contaminants, ensuring long-term stability in harsh environments |
| Controlled avalanche capability | Guaranteed 7 mJ energy absorption enables elimination of external TVS or RC snubbers in relay/inductor drive circuits |
| High operating temperature | Junction rating up to +175 °C supports use in under-hood automotive and high-ambient industrial power stages |
| Low leakage current | ≤1 µA at 400 V, 25 °C minimizes standby losses in always-on power rails |
| SOD87 surface-mount outline | Smallest standardized glass SMD rectifier package - saves board space vs. DO-41 or SMA alternatives |
Applications
| Automotive Relay Drivers | Industrial DC Power Supplies |
|---|---|
Use Scenario: Driving 12 V/24 V automotive relays with inductive coil suppression during de-energization. IC Role / Device Role / Timing Role: Avalanche rectifier providing passive clamping of back-EMF spikes across relay coil. Use Value: Eliminates need for discrete Zener or RC snubber networks while maintaining EMI compliance and component count reduction. | Use Scenario: Output rectification in isolated flyback converters delivering 5–24 V DC for PLC I/O modules. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous conduction mode (CCM) with moderate switching frequency (100–500 kHz). Use Value: Low VF (≤1.05 V) reduces conduction loss; 400 V rating supports 24 V output with margin for line surges and ringing. |
| Motor Control Snubbers | AC-DC Adapter Secondary Rectification |
Use Scenario: Clamping voltage spikes generated by brushed DC motor commutation in power tools. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed across motor terminals or H-bridge switches. Use Value: Guaranteed 7 mJ avalanche energy prevents failure during repeated motor stall or reversal events. | Use Scenario: Secondary-side rectification in universal-input (90–264 V AC) wall adapters for consumer electronics. IC Role / Device Role / Timing Role: General-purpose rectifier converting transformer secondary AC to DC before filtering. Use Value: Glass passivation and 175 °C junction rating ensure reliability under sustained load and elevated ambient temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar controlled avalanche rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600 V VRRM, 1 A IF(AV), TO-277 package, no guaranteed avalanche rating | Lacks specified ERSM; requires external clamping for inductive loads | Choose when higher voltage margin is needed but avalanche robustness is not critical |
| ON Semiconductor MUR105 | 50 V VRRM, 1 A IF(AV), DO-41 package, ultrafast trr = 75 ns | Lower voltage, faster recovery, but no avalanche capability or glass hermetic seal | Prefer for low-voltage, high-frequency rectification where clamping is handled separately |
Compared with STTH1L06S and MUR105, the BYD17G,115 uniquely combines 400 V rating, guaranteed 7 mJ avalanche energy, and hermetic SOD87 packaging - making it the only option among the three qualified for unassisted inductive switching in space-constrained, high-reliability industrial and automotive designs.
Availability
BYD17G,115 is available at Aetrix Electronics and suitable for automotive relay drivers, industrial DC power supplies, motor control snubbers, and AC-DC adapter secondary rectification requiring stable component supply and long-lifecycle support.
Supply support for BYD17G,115 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The BYD17 series was developed by Philips (now NXP) specifically for high-reliability, surface-mount controlled avalanche rectification in thermally demanding and electrically noisy environments.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for BYD17G,115?
The BYD17G,115 has a VRRM rating of 400 V, meaning it can repeatedly block up to 400 V in reverse bias without breakdown under normal operating conditions. This value is confirmed in the Limiting Values table of the original Philips datasheet and defines the upper limit for safe reverse-bias operation in rectifier and clamping configurations.
Does BYD17G,115 have a guaranteed avalanche energy rating?
Yes, the BYD17G,115 is explicitly rated for 7 mJ non-repetitive peak reverse avalanche energy (ERSM) under specified test conditions (L = 120 mH, Tj = max prior to surge). This guaranteed parameter allows designers to rely on the device for passive inductive load suppression without additional components - a key differentiator versus standard rectifiers.
What package type is used for BYD17G,115?
The BYD17G,115 uses the SOD87 surface-mount package - a hermetically sealed, cavity-free cylindrical glass outline manufactured using Philips' Implotec™ technology. Its compact dimensions (D ≈ 2.0 mm, L ≈ 3.5 mm) and cathode band marking are defined in the official package outline drawing.
What is the forward voltage drop (VF) of BYD17G,115 at 1 A?
The BYD17G,115 exhibits a maximum forward voltage drop of 1.05 V at IF = 1 A and Tj = 25 °C, per the Electrical Characteristics table. At elevated junction temperature (Tj = max), VF is guaranteed ≤ 0.93 V - reflecting its favorable conduction efficiency across operating temperature range.
Is BYD17G,115 suitable for automotive applications?
Yes, the BYD17G,115 is suitable for automotive applications including relay drivers and motor control snubbers due to its guaranteed avalanche energy (7 mJ), junction temperature rating up to +175 °C, glass passivation, and hermetic SOD87 package - all validated in the original Philips specification for high-reliability, thermally stressed environments.
BYD17G,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-87
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Avalanche
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.05 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 3 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 21pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- MELF
- Operating Temperature - Junction:
- -65°C ~ 175°C
BYD17G,115 FAQ
1.How can I place an order for BYD17G,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BYD17G,115 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 BYD17G,115 reliable?
The price and inventory of BYD17G,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYD17G,115 is usually 5 days.
3.What payment methods are accepted for BYD17G,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYD17G,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYD17G,115?
BYD17G,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYD17G,115 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 BYD17G,115?
For technical support, including BYD17G,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYD17G,115 requirements.
6.How does Aetrix verify that BYD17G,115 is sourced from the original manufacturer or authorized distributors?
All BYD17G,115 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 BYD17G,115 meets industry standards.
7.What is the process for return or replacement of BYD17G,115?
All BYD17G,115 units undergo pre-shipment inspection (PSI). If there is an issue with BYD17G,115, 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 BYD17G,115 part is unused and in its original packaging.
Return procedure for BYD17G,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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