My Inquiry
My Account
Diodes Incorporated DDC123JU-7
- Part No.:
- DDC123JU-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DDC123JU-7.pdf
- Description:
- TRANS 2NPN PREBIAS 0.2W SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:8,255
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDC123JU-7 from Diodes Incorporated is an NPN pre-biased dual small-signal transistor in SOT363 package, integrating two 2.2kΩ and 47kΩ bias resistors per channel. It delivers 100mA output current, 50V collector-emitter breakdown voltage, and 0.3V saturation voltage at 5mA/0.25mA drive, enabling compact logic-level switching in space-constrained PCBs for industrial I/O and LED driver stages.
For engineers reviewing the DDC123JU-7 datasheet, DDC123JU-7 pinout, DDC123JU-7 application, or DDC123JU-7 equivalent, this device serves as a drop-in replacement for discrete BJT + resistor networks in 3.3V/5V digital interface buffering, level translation, and low-power load switching where thermal derating to 200mW and ±30% R1 tolerance must be accounted.
Technical Context
This dual NPN transistor integrates monolithic epitaxial planar die with built-in base biasing resistors (R1 = 2.2kΩ, R2 = 47kΩ) per channel, eliminating external components for standard logic-driven switching. Each channel operates independently with isolated emitter, base, and collector terminals.
It supports VI(on) of 0.5V (min) and 1.1V (max) at IO = 5mA with VO(on) ≤ 0.3V, and exhibits GI = 80 (typ) at VO = 5V, IO = 10mA - confirming high DC current gain under moderate load conditions typical of microcontroller GPIO interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | NPN pre-biased dual transistor - replaces two discrete BJTs + four resistors in one SOT363 footprint |
| Max Output Current | 100 mA per channel - sufficient for driving LEDs, relays, or logic inputs without external current amplification |
| VCEO | 50 V - supports operation across 3.3V, 5V, and 12V logic domains with margin for transient spikes |
| VCE(sat) | 0.3 V at IC/IB = 5mA/0.25mA - ensures low conduction loss and minimal self-heating in continuous switching |
| R1, R2 | 2.2kΩ / 47kΩ ±30% - sets precise base bias for predictable turn-on threshold and gain stability |
| Power Dissipation | 200 mW total - requires thermal pad layout per FR-4 guidelines; derates linearly above +25°C ambient |
| fT | 250 MHz - enables reliable operation up to ~10–20 MHz switching in non-critical RF-adjacent applications |
Pinout & Package
Package: SOT363 - 6-pin, 2.15mm × 2.10mm × 0.95mm surface-mount plastic package with matte tin-plated leads, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter 1 (E1) | Common emitter node for first NPN transistor; connects to ground or low-side return path |
| 2 | Base 1 (B1) | Internally connected to R1–R2 divider; accepts logic input directly without external pull-up/down |
| 3 | Collector 1 (C1) | Output node for first channel; sinks current when driven high at Pin 2 |
| 4 | Collector 2 (C2) | Output node for second channel; electrically isolated from C1, supports independent load control |
| 5 | Base 2 (B2) | Internally connected to second R1–R2 divider; identical bias network to Pin 2 |
| 6 | Emitter 2 (E2) | Common emitter node for second NPN transistor; may be tied to E1 or kept separate for isolation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Two matched 2.2kΩ/47kΩ resistor pairs eliminate four external components per dual channel |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Green RoHS compliance | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb), fully lead-free |
| Thermal performance | RθJA = 625°C/W on FR-4 board - enables stable 100mA operation below +85°C ambient with proper copper area |
| Input voltage range | VI(off) ≤ 0.5V and VI(on) ≥ 0.5V at 5V supply - compatible with TTL, CMOS, and microcontroller GPIO thresholds |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
|
Use Scenario: Driving 24V solenoid valves and optocoupler inputs from 3.3V MCU GPIOs in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Dual-channel level-shifting switch translating low-voltage logic to higher-voltage loads with galvanic isolation via external optos. Use Value: Reduces BOM count by 4 resistors per channel and occupies 40% less board area than discrete equivalents while maintaining 100mA drive capability. |
Use Scenario: Controlling interior lighting dimming circuits and door lock actuators in BCM modules operating at 12V battery rail. IC Role / Device Role / Timing Role: Low-side switch for PWM-controlled LED strings and resistive loads, leveraging AEC-Q101 qualification for automotive lifecycle compliance. Use Value: Enables single-component solution for dual independent loads with guaranteed -40°C to +125°C operation and 50V VCEO margin over nominal 13.5V system voltage. |
| Consumer Appliance Control Boards | IoT Sensor Interface Hubs |
|
Use Scenario: Managing relay coils and status LEDs on white-goods mainboards powered by 5V SMPS rails. IC Role / Device Role / Timing Role: General-purpose logic buffer and indicator driver, replacing two BC847 + resistor combinations. Use Value: Simplifies layout routing, improves assembly yield, and reduces test points needed for bias network verification. |
Use Scenario: Isolating and conditioning signals between ESP32 host and analog sensor peripherals in battery-powered edge nodes. IC Role / Device Role / Timing Role: Signal conditioning switch for multiplexed sensor enable lines and fault-indicator outputs. Use Value: Delivers 0.3V VCE(sat) at 5mA to minimize voltage drop in 3.3V systems, extending battery life in always-on sensing modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN pre-biased dual transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDC114YU-7-F | R1 = 10kΩ, R2 = 47kΩ; lower input sensitivity (VI(on) min = 0.3V), GI = 68 (typ) | Better suited for 1.8V–3.3V logic interfaces requiring earlier turn-on | Select when driving from ultra-low-voltage MCUs or when tighter VI(on) tolerance is required |
| DDC144EU-7-F | R1 = R2 = 47kΩ; higher input impedance, VI(on) min = 1.9V, IO = 30mA max | Optimized for higher-impedance, lower-current logic buffering with reduced power draw | Prefer for battery-sensitive designs where 30mA load ceiling is acceptable and input drive strength is limited |
Compared with DDC123JU-7, DDC114YU-7-F offers earlier turn-on for low-VCC systems but lower current drive, while DDC144EU-7-F trades off output capability for reduced input current and higher noise immunity - making DDC123JU-7 the balanced choice for 5V/100mA general-purpose switching.
Availability
DDC123JU-7 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and consumer appliance control boards requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for DDC123JU-7 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, energy-efficient components for industrial, automotive, and computing markets.
The DDC series targets cost-sensitive, space-constrained digital interface applications, delivering integrated biasing to reduce design complexity and improve manufacturing repeatability in high-volume consumer and automotive electronics.
FAQ
What is the maximum junction temperature for DDC123JU-7 during continuous operation?
The DDC123JU-7 has an operating junction temperature range of –55°C to +150°C. Under continuous 100mA load at +25°C ambient, junction temperature rise is approximately 62.5°C (using RθJA = 625°C/W and PD ≈ 30mW), keeping TJ well within limit. Derating begins linearly above +25°C ambient per Figure 1 in DS30345.
Can DDC123JU-7 be used in analog amplifier configurations?
No - DDC123JU-7 is optimized for digital switching, not linear amplification. Its built-in bias resistors fix the base operating point, and its hFE is specified only under saturated switching conditions (IC = 1mA, VCE = 5V). The datasheet does not characterize small-signal parameters like gm or fT in active-region bias, making it unsuitable for analog gain stages.
Is the SOT363 package of DDC123JU-7 compatible with standard reflow profiles?
Yes - the SOT363 package uses matte tin-plated leads compliant with MIL-STD-202 Method 208 and is rated for moisture sensitivity level 1 (MSL-1), meaning it can be stored indefinitely at ≤30°C/60% RH and processed using standard Pb-free reflow profiles (peak 260°C, 30–60 sec above 217°C) without baking.
How does the ±30% R1 tolerance affect switching consistency across production lots?
The ±30% R1 tolerance directly impacts VI(on) variation: for DDC123JU-7, VI(on) ranges from 0.5V to 1.1V at IO = 5mA. This requires system-level validation at both extremes - especially in 3.3V systems where marginal high-state drive may fail to saturate the transistor if VI(on) exceeds VOH of the driving source.
DDC123JU-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- 2 NPN - Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 2.2kOhms
- Resistor - Emitter Base (R2):
- 47kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DDC123JU-7 FAQ
1.How can I place an order for DDC123JU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDC123JU-7 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 DDC123JU-7 reliable?
The price and inventory of DDC123JU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDC123JU-7 is usually 5 days.
3.What payment methods are accepted for DDC123JU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDC123JU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDC123JU-7?
DDC123JU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDC123JU-7 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 DDC123JU-7?
For technical support, including DDC123JU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDC123JU-7 requirements.
6.How does Aetrix verify that DDC123JU-7 is sourced from the original manufacturer or authorized distributors?
All DDC123JU-7 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 DDC123JU-7 meets industry standards.
7.What is the process for return or replacement of DDC123JU-7?
All DDC123JU-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDC123JU-7, 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 DDC123JU-7 part is unused and in its original packaging.
Return procedure for DDC123JU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDC123JU-7 Tags
-
SMUN5311DW1T1G
onsemi
-
UMH9NTN
Rohm Semiconductor
-
PUMH13,115
Nexperia USA Inc.
-
PUMD3-QX
Nexperia USA Inc.
-
PUMD2,115
Nexperia USA Inc.
-
RN4987FE,LF(CT
Toshiba Semiconductor and Storage
-
PUMD12,115
Nexperia USA Inc.
-
PUMD9,115
Nexperia USA Inc.
-
PUMH9,115
Nexperia USA Inc.
-
PUMD3,115
Nexperia USA Inc.
-
DCX114EU-7-F
Diodes Incorporated
-
PUMD13,115
Nexperia USA Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
