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Diodes Incorporated ZTX415
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- Part No.:
- ZTX415
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- E-Line-3
- Datasheet:
-
ZTX415.pdf
- Description:
- TRANS NPN 100V 0.5A E-LINE
- Quantity:
- Payment:
- Shipping:
Inventory:3,615
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Product details
Overview
ZTX415 from Diodes Incorporated is an NPN silicon planar medium-power transistor specifically engineered for avalanche-mode operation, featuring BVCES > 260 V, BVCEO > 100 V, and 60 A peak avalanche current (20 ns pulse), used in high-voltage pulse generator and snubber circuit applications.
For engineers reviewing the ZTX415 datasheet, ZTX415 pinout, ZTX415 application, or ZTX415 equivalent, key selection criteria include avalanche energy handling, VCEO derating at elevated temperature, thermal resistance to lead (197 °C/W), and E-Line package compatibility with through-hole PCB layouts.
Technical Context
This transistor is optimized for controlled second-breakdown avalanche conduction, not linear amplification or switching. Its design emphasizes high-energy pulse tolerance with guaranteed BVCES ≥ 260 V and pulsed IUSB up to 35 A under defined capacitive load conditions (VC = 250 V, CCE = 620 pF).
It operates across –55°C to +150°C with JEDEC Class 3A HBM ESD rating (4 kV), uses matte tin-plated leads solderable per MIL-STD-202 Method 208, and meets RoHS 3, halogen-free, and antimony-free "Green" requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCES | ≥260 V - Ensures safe operation under high-voltage transient stress in avalanche mode |
| BVCEO | ≥100 V - Defines maximum DC collector-emitter blocking voltage before breakdown |
| ICM | 60 A (20 ns pulse) - Peak current capability during short-duration avalanche events |
| PD | 680 mW - Power dissipation limit on 15 mm × 15 mm 1 oz copper PCB under still air |
| RθJL | 197 °C/W - Thermal resistance from junction to solder point; critical for pulse thermal management |
| fT | 40 MHz - Transition frequency at VCE = 20 V, IC = 10 mA; indicates usable RF gain bandwidth |
| hFE | 25 min - Minimum DC current gain at IC = 10 mA, VCE = 10 V; sufficient for base drive control |
Pinout & Package
E-Line package: molded plastic case (UL 94V-0), 159 mg weight, 3-pin through-hole configuration with collector (C), base (B), emitter (E) terminals. Leads are matte tin-plated and solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main high-current output terminal | Connected to high-voltage rail or inductive load; carries full avalanche pulse current |
| Base (B) | Control input for turn-on/turn-off | Drives transistor into saturation or cutoff; requires precise current limiting to avoid overdrive |
| Emitter (E) | Reference and return path | Common node for biasing and sensing; tied to ground or low-side reference in avalanche circuits |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated structure | Guaranteed 60 A peak avalanche current with 20 ns pulse width and validated second-breakdown energy margin |
| High-voltage isolation | BVCES > 260 V enables use in >200 V transient suppression and pulse generator topologies |
| Thermal performance | RθJL = 197 °C/W allows direct heat transfer from junction to PCB via collector lead-critical for repetitive pulse reliability |
| Environmental compliance | Fully RoHS 3 compliant, halogen- and antimony-free "Green" construction per Diodes Inc. specification |
Applications
| Laser Pulse Driver | Capacitive Discharge Circuit |
|---|---|
Use Scenario: Driving Q-switched laser diodes requiring nanosecond-scale high-current pulses. IC Role / Device Role / Timing Role: Avalanche-mode switch delivering controlled 60 A pulses with <20 ns rise time. Use Value: Enables precise optical pulse timing without external snubbers due to intrinsic avalanche ruggedness. | Use Scenario: Rapid discharge of high-voltage capacitors into magnetic coils or flash lamps. IC Role / Device Role / Timing Role: High-energy switch triggered by base pulse to initiate controlled capacitor dump. Use Value: Eliminates need for spark gaps or thyristors; supports repeatable sub-microsecond discharge with stable VCEO margin. |
| Overvoltage Protection Snubber | Inductive Load Clamp |
Use Scenario: Protecting MOSFETs/IGBTs from inductive switching spikes in motor drives. IC Role / Device Role / Timing Role: Clamping device absorbing transient energy via controlled avalanche conduction. Use Value: Provides deterministic clamping at >260 V with no degradation after repeated 60 A pulses. | Use Scenario: Suppressing back-EMF in relay or solenoid drivers operating above 100 V. IC Role / Device Role / Timing Role: Fast-turn-on clamp activated by voltage overshoot exceeding BVCEO. Use Value: Prevents destructive voltage runaway using intrinsic BVCES margin instead of external Zener networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar avalanche-mode transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZTX453 | BVCES = 260 V (same), but BVCEO = 120 V (vs. 100 V); higher hFE (min 40 vs. 25) | Supports higher DC blocking in linear clamp configurations; better base drive efficiency | Prefer when higher VCEO margin or lower base current is required |
| BUV28A | TO-126 package; BVCES = 300 V, ICM = 50 A (20 ns), RθJL = 250 °C/W (worse thermal path) | Higher voltage rating but lower pulse current and inferior thermal coupling to PCB | Choose only if board layout requires TO-126 footprint and 300 V VCES is mandatory |
Compared with ZTX453 and BUV28A, ZTX415 offers optimal balance of pulse current (60 A), thermal resistance (197 °C/W), and E-Line through-hole manufacturability-making it preferred for compact, high-repetition-rate avalanche circuits where lead-to-PCB heat extraction is critical.
Availability
ZTX415 is available at Aetrix Electronics and suitable for laser pulse drivers, capacitive discharge systems, overvoltage snubbers, and inductive load clamps requiring stable component supply and consistent avalanche performance.
Supply support for ZTX415 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, specializing in high-reliability power management, signal integrity, and protection solutions.
ZTX415 belongs to Diodes' E-Line medium-power bipolar transistor family, designed explicitly for robust avalanche-mode operation in pulse-generation and transient-suppression applications-not general-purpose switching or amplification.
FAQ
What is the maximum allowable continuous collector current for ZTX415?
The absolute maximum continuous collector current (IC) is 500 mA at TA = +25°C. Derating is required above 25°C per the thermal resistance RθJA = 250 °C/W. At 100°C ambient, max IC drops to approximately 270 mA to maintain junction temperature below 150°C.
Can ZTX415 be used in linear amplifier configurations?
No-ZTX415 is specifically designed and characterized for avalanche-mode operation, not linear amplification. Its hFE variation, VCE(sat) tolerance, and thermal profile are optimized for pulsed high-energy conduction, not small-signal gain stability or linearity.
Is ZTX415 pin-compatible with ZTX453?
Yes-both use identical E-Line package and share identical pinout (C-B-E top view). However, ZTX453 has higher BVCEO (120 V vs. 100 V) and minimum hFE (40 vs. 25), so substitution requires verification of base drive and voltage margin in the target circuit.
What is the recommended PCB pad layout for ZTX415's E-Line package?
Per Diodes' package outline DS33265 Rev. 5–2, use round through-holes of 0.70 mm diameter maximum. The collector lead (pin 1) should connect to ≥15 mm × 15 mm 1 oz copper area for thermal performance; base and emitter pads follow standard E-Line land pattern with 2.54 mm pitch and 1.27 mm lead spacing.
ZTX415 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- E-Line-3
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- NPN - Avalanche Mode
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 1mA, 10mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 25 @ 10mA, 10V
- Power - Max:
- 680 mW
- Frequency - Transition:
- 40MHz
- Operating Temperature:
- -55°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- E-Line (TO-92 compatible)
ZTX415 FAQ
1.How can I place an order for ZTX415 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZTX415 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 ZTX415 reliable?
The price and inventory of ZTX415 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZTX415 is usually 5 days.
3.What payment methods are accepted for ZTX415?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZTX415 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZTX415?
ZTX415 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZTX415 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 ZTX415?
For technical support, including ZTX415 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZTX415 requirements.
6.How does Aetrix verify that ZTX415 is sourced from the original manufacturer or authorized distributors?
All ZTX415 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 ZTX415 meets industry standards.
7.What is the process for return or replacement of ZTX415?
All ZTX415 units undergo pre-shipment inspection (PSI). If there is an issue with ZTX415, 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 ZTX415 part is unused and in its original packaging.
Return procedure for ZTX415:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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