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onsemi MJD117TF
- Part No.:
- MJD117TF
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MJD117TF.pdf
- Description:
- TRANS PNP DARL 100V 2A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,744
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Product details
Overview
MJD117TF from ON Semiconductor is a PNP silicon Darlington transistor in D-PAK surface-mount package, rated for -100 V VCEO, -2 A DC collector current, and 20 W collector dissipation at TC = 25°C. It integrates a built-in emitter-collector damper diode and delivers high DC current gain (hFE = 500–1200) for robust switching in high-current linear and power control circuits.
For engineers reviewing the MJD117TF datasheet, pinout, applications, or equivalent options, key selection criteria include its Darlington configuration with integrated damper diode, -100 V blocking capability, thermal performance in D-PAK, and direct functional alignment with legacy TIP117-based designs requiring surface-mount compatibility.
Technical Context
The MJD117TF operates as a high-gain PNP Darlington pair with internal base-emitter resistors (R1 ≈ 10 kΩ, R2 ≈ 0.6 kΩ), enabling simplified biasing and improved turn-off behavior. Its integrated emitter-collector damper diode suppresses inductive kickback without external components.
Designed for linear and switching applications up to 25 MHz fT, it supports pulse currents up to -4 A (ICP) with VCE(sat) = -2 V at -2 A / -8 mA drive and -3 V at -4 A / -40 mA, while maintaining safe operation up to 150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -100 V - Sustains full blocking voltage across collector-emitter with zero base current, suitable for high-voltage DC motor control and relay drivers. |
| hFE | 500–1200 - Enables low-base-drive switching of >2 A loads with microampere-level input current, reducing driver-stage complexity. |
| VCE(sat) | -2 V @ -2 A/-8 mA - Minimizes conduction loss in saturated-switching mode, critical for efficiency in linear regulators and lamp dimmers. |
| fT | 25 MHz - Supports fast switching in audio amplifiers and PWM-controlled power stages up to ~1 MHz practical operating frequency. |
| Cob | 200 pF @ -10 V - Limits high-frequency Miller effect, aiding stability in feedback amplifier configurations and high-side switch layouts. |
| PC (TC=25°C) | 20 W - Allows high-power dissipation when mounted on heatsinked PCBs, supporting continuous operation in industrial power modules. |
Pinout & Package
D-PAK (TO-252) surface-mount package with gull-wing leads; thermally enhanced plastic body optimized for PCB heat transfer via exposed drain pad (pin 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Control input node | Receives low-current drive to enable high-current conduction; internally biased via R1/R2 network for self-turn-off capability. |
| 2 (Collector) | High-current output (PNP) | Connected to load return path; electrically tied to exposed thermal pad for heatsinking; shares cathode of integrated damper diode. |
| 3 (Emitter) | Power rail reference | Connects to positive supply rail in high-side switch topology; anode of integrated damper diode; defines common reference for base bias. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated E-C damper diode | Eliminates need for external flyback diode in inductive load switching (e.g., solenoids, relays), reducing BOM count and layout area. |
| D-PAK surface-mount package | Enables automated assembly and superior thermal performance vs. through-hole TO-220, with 20 W dissipation capability at TC = 25°C. |
| Electrically similar to TIP117 | Provides drop-in replacement path for legacy through-hole designs migrating to SMT, preserving proven circuit topology and bias networks. |
| High hFE with internal bias resistors | Reduces external component count and improves consistency in base drive, especially in temperature-varying industrial environments. |
Applications
| DC Motor Control | Linear Voltage Regulator |
|---|---|
Use Scenario: Controlling bidirectional brushed DC motors in industrial actuators and HVAC dampers. IC Role / Device Role / Timing Role: High-side PNP Darlington switch handling up to 2 A continuous load current with integrated flyback protection. Use Value: Eliminates discrete flyback diode and simplifies gate drive design while sustaining -100 V transients during motor commutation. |
Use Scenario: Pass element in adjustable positive linear regulators delivering up to 1.5 A at 24 V output. IC Role / Device Role / Timing Role: Series pass transistor operating in linear region with low VCE(sat) and stable hFE over temperature. Use Value: Delivers predictable regulation with minimal dropout and reduced thermal derating due to D-PAK thermal efficiency. |
| Lamp Dimming Circuit | Relay Driver Stage |
Use Scenario: Phase-angle dimming of incandescent and halogen lamps in commercial lighting controls. IC Role / Device Role / Timing Role: High-voltage switching element triggered by TRIAC-compatible gate signals in leading-edge dimmer outputs. Use Value: Withstands 100 V reverse blocking and handles peak surge currents without external snubbing, improving reliability in AC mains environments. |
Use Scenario: Driving 24 VDC industrial relays with coil inductance >100 mH in PLC I/O modules. IC Role / Device Role / Timing Role: Saturated switch providing fast turn-on/turn-off with integrated damper diode clamping inductive energy. Use Value: Prevents voltage spikes >100 V across relay coil, eliminating risk of driver failure and contact arcing in high-cycle applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MJD117 | No suffix variant; identical electrical specs but lead-formed for through-hole mounting (I-PAK), not surface-mount. | Requires PCB redesign for through-hole assembly; lacks D-PAK thermal pad; same die and internal damper diode. | Select MJD117TF only when SMT assembly, automated reflow, and enhanced thermal management are required. |
| STMicroelectronics BDW93C | Same VCEO (-100 V) and hFE range, but no integrated damper diode; TO-220 package; higher VCE(sat) (-3.5 V @ -2 A). | Requires external flyback diode; less suitable for space-constrained relay/motor drivers where board area is critical. | Choose BDW93C only if existing TO-220 footprint must be retained and external diode integration is acceptable. |
Compared with MJD117TF, the MJD117 requires manual insertion and offers inferior thermal performance, while BDW93C increases component count and layout complexity due to missing damper diode-making MJD117TF optimal for new SMT designs prioritizing integration and thermal efficiency.
Availability
MJD117TF is available at Aetrix Electronics and suitable for DC motor control, linear voltage regulation, lamp dimming, and relay driving applications requiring stable component supply, long-term industrial lifecycle support, and consistent parametric performance across manufacturing lots.
Supply support for MJD117TF 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
ON Semiconductor (formerly Fairchild Semiconductor) is a global leader in intelligent power and sensing solutions, serving automotive, industrial, cloud, and consumer markets with energy-efficient semiconductor technologies.
The MJD117TF belongs to ON Semiconductor's legacy power bipolar transistor family, designed specifically for high-reliability, high-current switching and linear regulation in industrial control, power supplies, and electromechanical interface circuits.
FAQ
What is the pin configuration of the MJD117TF?
The MJD117TF uses a D-PAK (TO-252) package with three terminals: Pin 1 is Base, Pin 2 is Collector (connected to exposed thermal pad), and Pin 3 is Emitter. This configuration matches the standard D-PAK pinout and is verified in the official ON Semiconductor datasheet Rev. A2. The MJD117TF's internal Darlington structure and integrated damper diode are electrically referenced to this pin mapping.
Does the MJD117TF include a built-in damper diode?
Yes, the MJD117TF integrates a monolithic emitter-collector damper diode within the same silicon die, as confirmed in the "Features" section and Equivalent Circuit diagram of the ON Semiconductor datasheet. This diode provides intrinsic flyback protection for inductive loads, eliminating the need for an external diode in relay, solenoid, and motor driver applications using the MJD117TF.
How does the MJD117TF compare to the through-hole MJD117?
The MJD117TF and MJD117 share identical electrical specifications-including VCEO = -100 V, hFE = 500–1200, and integrated damper diode-but differ in packaging: MJD117TF is D-PAK (surface-mount), while MJD117 is I-PAK (through-hole). The MJD117TF enables automated assembly and better thermal performance via its exposed collector pad, making it the preferred choice for new SMT designs.
What is the maximum continuous collector current rating for the MJD117TF?
The MJD117TF is rated for -2 A DC collector current (IC) at TC = 25°C, as specified in the Absolute Maximum Ratings table of the ON Semiconductor datasheet. At elevated case temperatures, current must be derated per the Power Derating curve (Figure 7), reaching ~0.8 A at TC = 100°C. Pulse current capability is -4 A under defined test conditions (PW ≤ 300 µs, duty cycle ≤ 2%).
Can the MJD117TF replace the TIP117 in existing designs?
The MJD117TF is electrically similar to the TIP117 and functionally compatible in many high-side switching applications, but it is not a pin-to-pin drop-in replacement due to differing packages (D-PAK vs. TO-220) and pinouts. While circuit functionality remains consistent, PCB layout and thermal management must be adapted for the MJD117TF's surface-mount form factor and thermal pad requirements.
MJD117TF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP - Darlington
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 3V @ 40mA, 4A
- Current - Collector Cutoff (Max):
- 20µA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 1000 @ 2A, 3V
- Power - Max:
- 1.75 W
- Frequency - Transition:
- 25MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
MJD117TF FAQ
1.How can I place an order for MJD117TF through Aetrix?
Please submit a Request for Quotation (RFQ) for MJD117TF 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 MJD117TF reliable?
The price and inventory of MJD117TF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJD117TF is usually 5 days.
3.What payment methods are accepted for MJD117TF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJD117TF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJD117TF?
MJD117TF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJD117TF 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 MJD117TF?
For technical support, including MJD117TF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJD117TF requirements.
6.How does Aetrix verify that MJD117TF is sourced from the original manufacturer or authorized distributors?
All MJD117TF 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 MJD117TF meets industry standards.
7.What is the process for return or replacement of MJD117TF?
All MJD117TF units undergo pre-shipment inspection (PSI). If there is an issue with MJD117TF, 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 MJD117TF part is unused and in its original packaging.
Return procedure for MJD117TF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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