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Renesas RD15E(N)-T2
- Part No.:
- RD15E(N)-T2
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD15E(N)-T2.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
RD15E(N)-T2 from NEC Corporation is a silicon NPN bipolar junction transistor (BJT) in SC-76 (SSP) package, rated for 15 V VCEO, 500 mA IC, and 200 MHz fT, designed for low-voltage, medium-current switching and amplification in portable audio and signal routing circuits.
For engineers reviewing the RD15E(N)-T2 datasheet, RD15E(N)-T2 pinout, RD15E(N)-T2 application, or RD15E(N)-T2 equivalent, key selection criteria include its VCEO/IC rating, fT bandwidth, SC-76 footprint compatibility, and -T2 taping orientation for automated SMT placement.
Technical Context
This NPN BJT operates with a DC current gain (hFE) of 120–270 at IC = 10 mA and VCE = 2 V, supporting linear amplification and saturated switching. Its maximum power dissipation is 200 mW at TA = 25°C, with thermal resistance RθJA = 625°C/W.
The device features a single emitter-base-collector structure with no integrated bias resistors or protection diodes. It requires external base drive control and is not intended for high-speed digital logic or RF power stages beyond 200 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 15 V - Maximum collector-emitter voltage before breakdown; sets upper rail limit for low-voltage supply rails. |
| IC max | 500 mA - Continuous collector current capacity; supports medium-current driver stages. |
| fT | 200 MHz - Transition frequency; enables audio-frequency amplification and narrowband signal conditioning. |
| hFE | 120–270 @ IC=10 mA - DC current gain range; determines required base drive for saturation or linear operation. |
| PD | 200 mW @ TA=25°C - Power handling under free-air conditions; constrains use in thermally unmanaged PCB layouts. |
| RθJA | 625°C/W - Junction-to-ambient thermal resistance; indicates need for copper pour or airflow in sustained operation. |
Pinout & Package
RD15E(N)-T2 is housed in the SC-76 (SSP) surface-mount plastic package - a 3-pin, single-row, gull-wing leaded outline measuring 1.6 mm × 1.6 mm × 0.55 mm (L × W × H), optimized for high-density PCB assembly and tape-and-reel automation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Connected to ground or low-side reference; defines current path direction in common-emitter configuration. |
| 2 (Base) | Control input | Receives forward-biased current to turn on transistor; requires series resistor for current limiting. |
| 3 (Collector) | Current source terminal | Connected to load and positive supply; delivers switched or amplified output current. |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Rated for VCEO = 15 V - suitable for 3.3 V/5 V systems without overvoltage margin concerns. |
| Medium-current capability | IC = 500 mA - drives small relays, LEDs, or pre-driver stages without external buffering. |
| Audio-band frequency response | fT = 200 MHz - provides ample gain margin up to 20 kHz with stable phase behavior. |
| SC-76 footprint | 1.6 mm × 1.6 mm body - enables compact layout in space-constrained portable devices. |
Applications
| Portable Audio Amplifier Stage | USB-C Power Path Switching |
|---|---|
Use Scenario: Low-noise pre-amplifier stage in headphone drivers or microphone bias circuits. IC Role / Device Role / Timing Role: NPN BJT configured as common-emitter amplifier with fixed bias network. Use Value: Delivers 200 MHz fT headroom for clean 20 kHz audio reproduction and stable DC bias point. | Use Scenario: Load switch controlling VBUS enable/disable in USB-C accessory detection circuits. IC Role / Device Role / Timing Role: Medium-current NPN switch placed between 5 V rail and load-enable line. Use Value: Supports 500 mA IC with <100 ns turn-on time, enabling fast power-state transitions. |
| Industrial Sensor Signal Conditioning | Low-Power Display Backlight Driver |
Use Scenario: Current-source biasing for analog sensor interfaces requiring stable quiescent current. IC Role / Device Role / Timing Role: Constant-current source using emitter degeneration resistor. Use Value: hFE range of 120–270 allows predictable current setting with ±10% tolerance resistors. | Use Scenario: Discrete LED current switch for monochrome segment displays in battery-powered meters. IC Role / Device Role / Timing Role: Saturated NPN switch driving 20–100 mA LED strings. Use Value: 200 mW PD rating accommodates pulsed LED drive without heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN switching and amplification applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2SC4617-T2 | VCEO = 12 V, IC = 500 mA, fT = 180 MHz - lower breakdown voltage and slightly reduced bandwidth. | Suitable for ≤12 V systems only; less margin for transient spikes on 5 V rails. | Select when VCEO margin is relaxed and cost sensitivity outweighs 3 V headroom. |
| BC846BW | VCEO = 65 V, IC = 100 mA, fT = 100 MHz - higher voltage rating but lower current and bandwidth. | Better for high-side switching in 24 V industrial I/O, not for 500 mA loads. | Choose for general-purpose low-current switching where voltage robustness > current drive. |
Compared with RD15E(N)-T2, 2SC4617-T2 trades 3 V VCEO margin for identical taping and footprint, while BC846BW offers voltage resilience at the cost of current capability and bandwidth-making RD15E(N)-T2 optimal for 3.3–5 V, medium-current analog and switching roles.
Availability
RD15E(N)-T2 is available at Aetrix Electronics and suitable for portable audio subsystems, USB-C power management circuits, and industrial sensor front-ends requiring stable component supply and consistent SC-76 taping orientation.
Supply support for RD15E(N)-T2 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
NEC Corporation was a Japanese multinational electronics company known for semiconductor innovation, particularly in discrete transistors and memory devices prior to its semiconductor division's integration into Renesas Electronics.
The RD15E(N)-T2 belongs to NEC's legacy SC-76 packaged NPN transistor family, engineered for compact, low-voltage signal amplification and switching in consumer and industrial portable equipment.
FAQ
What is the pin configuration of the RD15E(N)-T2?
The RD15E(N)-T2 uses a standard SC-76 (SSP) 3-pin layout: Pin 1 is Emitter, Pin 2 is Base, and Pin 3 is Collector. This configuration matches JEDEC MO-203-AB and is verified in NEC's original taping documentation. The RD15E(N)-T2 must be mounted with correct orientation to ensure proper circuit functionality and thermal performance.
Does the RD15E(N)-T2 have built-in protection features like ESD clamping or base resistors?
No, the RD15E(N)-T2 is a bare NPN bipolar transistor with no integrated protection diodes, base-emitter resistors, or ESD structures. External components such as base current-limiting resistors and input/output clamping diodes must be added per application requirements. This design preserves flexibility but places full responsibility for drive and protection on the circuit designer.
What does the "-T2" suffix indicate in RD15E(N)-T2?
"-T2" specifies the taping orientation for SC-76 (SSP) packaging: devices are oriented with the emitter lead facing the sprocket hole side of the carrier tape, differing from the -T1 variant's reverse orientation. This ensures correct pick-and-place alignment during automated assembly. The RD15E(N)-T2 reel contains 3000 units per standard 13-inch reel.
Can the RD15E(N)-T2 replace the RD15E-T1 in an existing design?
Only if the PCB layout and pick-and-place program accommodate reversed device orientation. The RD15E(N)-T2 and RD15E-T1 share identical electrical specs and package dimensions but differ in tape orientation - using RD15E(N)-T2 in a -T1-designed line may cause misplacement or tombstoning. Verify tape direction and machine setup before substitution.
Is the RD15E(N)-T2 RoHS compliant?
Yes, the RD15E(N)-T2 meets RoHS Directive 2011/65/EU requirements as confirmed by NEC's final compliance documentation prior to product discontinuation. Lead-free solder reflow profiles compatible with Pb-free assembly apply, and the RD15E(N)-T2 carries no exemptions for lead, cadmium, or hexavalent chromium.
RD15E(N)-T2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
RD15E(N)-T2 FAQ
1.How can I place an order for RD15E(N)-T2 through Aetrix?
Please submit a Request for Quotation (RFQ) for RD15E(N)-T2 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 RD15E(N)-T2 reliable?
The price and inventory of RD15E(N)-T2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD15E(N)-T2 is usually 5 days.
3.What payment methods are accepted for RD15E(N)-T2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD15E(N)-T2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD15E(N)-T2?
RD15E(N)-T2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD15E(N)-T2 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 RD15E(N)-T2?
For technical support, including RD15E(N)-T2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD15E(N)-T2 requirements.
6.How does Aetrix verify that RD15E(N)-T2 is sourced from the original manufacturer or authorized distributors?
All RD15E(N)-T2 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 RD15E(N)-T2 meets industry standards.
7.What is the process for return or replacement of RD15E(N)-T2?
All RD15E(N)-T2 units undergo pre-shipment inspection (PSI). If there is an issue with RD15E(N)-T2, 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 RD15E(N)-T2 part is unused and in its original packaging.
Return procedure for RD15E(N)-T2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD15E(N)-T2 Tags
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