Renesas AR1L2Q-T-AZ
- Part No.:
- AR1L2Q-T-AZ
- Manufacturer:
- Renesas
- Category:
- Single Bipolar Transistors
- Package:
- -
- Datasheet:
-
AR1L2Q-T-AZ.pdf
- Description:
- PNP EPITAXIAL TRANSISTOR
- Quantity:
- Payment:

- Shipping:

Inventory:5,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AR1L2Q-T-AZ from NEC is a PNP silicon epitaxial compound transistor with integrated bias resistors, designed for mid-speed switching in digital interface and driver circuits. It features R1 = 470 Ω (typ), R2 = 4.7 kΩ (typ), VCEO = −60 V, IC(DC) = −1.0 A, and VOL = −0.55 V at IC = −0.5 A - enabling direct TTL/CMOS-level drive of relays and small solenoids.
For engineers reviewing the AR1L2Q-T-AZ datasheet, AR1L2Q-T-AZ pinout, AR1L2Q-T-AZ application, or AR1L2Q-T-AZ equivalent, key selection criteria include verified on-chip resistor values, guaranteed low saturation voltage under pulsed load, junction temperature rating up to 150°C, and TO-92 package compatibility with legacy through-hole PCB layouts.
Technical Context
This compound transistor integrates two precision on-die resistors (R1 emitter-to-base, R2 base-to-collector) to simplify external biasing and reduce component count in high-side switch configurations. Its PNP structure supports sink-type logic interfacing with active-low control signals.
The device operates with fixed DC current gain hFE1 ≥ 150 at IC = −0.1 A and maintains hFE2 ≥ 100 at IC = −0.5 A, ensuring stable switching across its rated current range while limiting base drive requirements. Absolute maximum ratings are defined for Ta = 25°C with pulse conditions specified per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −60 V: Supports operation in 48 V industrial bus and 24 V control systems with margin |
| IC(DC) | −1.0 A: Rated continuous collector current for relay coil and LED array driving |
| R1 | 470 Ω (typ): Sets input impedance for direct connection to 5 V logic outputs |
| R2 | 4.7 kΩ (typ): Provides stable base bias under varying load conditions |
| VOL | −0.55 V (max at IC = −0.5 A): Ensures reliable low-state recognition by downstream logic |
| hFE1 | ≥150 at IC = −0.1 A: Guarantees sufficient gain for low-drive microcontroller GPIOs |
| Tj max | 150°C: Enables use in enclosed enclosures without forced air cooling |
Pinout & Package
AR1L2Q-T-AZ is housed in a TO-92 plastic package (JEDEC standard), with lead configuration matching EIAJ SC-43B and IEC PA33 outlines. The case outline and mechanical dimensions conform to industry-standard through-hole mounting requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current source terminal | Connected to positive rail in high-side switch topology; defines reference for R1/R2 network |
| 2 (Collector) | Load return path | Sinks current from connected load (e.g., relay coil) to ground or negative supply |
| 3 (Base) | Internal resistor node | Internally tied to R1 and R2; no external base connection required for basic switching |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | On-chip R1 = 470 Ω and R2 = 4.7 kΩ eliminate need for external base resistors |
| Low power drive requirement | Supports direct interface with 5 V CMOS/TTL outputs without level-shifting or amplification |
| Guaranteed gain at high current | hFE2 ≥ 100 at IC = −0.5 A ensures robust turn-on even under load variation |
| High breakdown voltage | VCBO = −60 V enables safe operation in inductive load switching with flyback suppression |
Applications
| Industrial Relay Driver | PLC Output Stage |
|---|---|
Use Scenario: Driving 24 VDC electromagnetic relays in factory automation panels. IC Role / Device Role / Timing Role: High-side switch controlling relay coil current path with logic-level enable. Use Value: Eliminates discrete base resistor network, reduces BOM count, and ensures consistent turn-on time across temperature. | Use Scenario: Solid-state output module in programmable logic controllers handling 100 mA–500 mA loads. IC Role / Device Role / Timing Role: Load-switching element translating PLC CPU logic signals into isolated field-device actuation. Use Value: Delivers −0.55 V VOL at −0.5 A, meeting industrial noise immunity thresholds for reliable state detection. |
| Automated Test Equipment | Legacy System Interface Adapter |
Use Scenario: Signal conditioning stage in benchtop test fixtures switching between DUT power domains. IC Role / Device Role / Timing Role: Level-translating driver isolating controller logic from higher-voltage test loads. Use Value: On-chip R1/R2 provides predictable input threshold and eliminates layout-sensitive resistor placement. | Use Scenario: Retrofitting obsolete NPN-based interface boards with modern PNP-compatible logic. IC Role / Device Role / Timing Role: Drop-in replacement for legacy discrete transistor + resistor combinations in maintenance upgrades. Use Value: Matches TO-92 footprint and electrical behavior of earlier AR1-series variants like AR1L3N, easing redesign effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AR1L3N | R1 = 4.7 kΩ (typ), R2 = 10 kΩ (typ); lower input sensitivity, higher VOL = −0.3 V at −0.2 A | Better suited for higher-impedance logic sources; limited to ≤200 mA continuous load | Select AR1L3N when driving lighter loads with weaker drive capability or tighter VOL budget |
| NSV60511T1G | Surface-mount SOT-23 package; R1 = 2.2 kΩ, R2 = 47 kΩ; VCEO = −50 V, IC(DC) = −100 mA | Not suitable for >100 mA loads; requires PCB redesign due to different footprint and polarity | Choose NSV60511T1G only for space-constrained, low-current designs where TO-92 is impractical |
Compared with AR1L3N and NSV60511T1G, AR1L2Q-T-AZ delivers higher drive current (−1.0 A vs −0.2 A/−0.1 A), lower input resistance for stronger logic compatibility, and proven thermal performance in through-hole industrial assemblies - making it optimal for legacy-replacement and medium-power switching.
Availability
AR1L2Q-T-AZ is available at Aetrix Electronics and suitable for industrial relay drivers, PLC output stages, automated test equipment, and legacy system interface adapters requiring stable component supply and long-term obsolescence management.
Supply support for AR1L2Q-T-AZ 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 before merging into Renesas Electronics in 2010. Its discrete transistor portfolio emphasized reliability and industrial-grade specifications.
The AR1 SERIES was developed specifically for mid-speed digital switching in industrial control systems, integrating precision bias resistors to replace dual-transistor or resistor-transistor logic (RTL) configurations in cost-sensitive, high-volume applications.
FAQ
What is the pin configuration of AR1L2Q-T-AZ?
AR1L2Q-T-AZ uses a standard TO-92 package with three leads: Pin 1 is Emitter, Pin 2 is Collector, and Pin 3 is Base. The internal base is pre-biased via on-chip resistors R1 and R2, so no external base connection is needed for basic switching operation. This configuration matches JEDEC TO-92 and EIAJ SC-43B mechanical outlines.
Does AR1L2Q-T-AZ require an external base resistor?
No, AR1L2Q-T-AZ does not require an external base resistor because it integrates R1 = 470 Ω (emitter-to-base) and R2 = 4.7 kΩ (base-to-collector) on-die. These resistors enable direct connection to 5 V logic outputs, eliminating discrete bias components and reducing PCB area. AR1L2Q-T-AZ is designed as a complete digital transistor solution.
What is the maximum continuous collector current for AR1L2Q-T-AZ?
The maximum continuous collector current for AR1L2Q-T-AZ is −1.0 A at Ta = 25°C, as specified in the Absolute Maximum Ratings table. Derating applies above 25°C ambient; for example, at 75°C, the usable DC current drops to approximately −0.75 A. Pulse operation supports −2.0 A with PW ≤ 10 ms and duty cycle ≤ 50%.
Can AR1L2Q-T-AZ be used in automotive applications?
AR1L2Q-T-AZ is rated for "Standard" quality grade per NEC documentation, intended for office equipment, industrial robots, and communications gear - not automotive safety-critical systems. While its 150°C junction rating meets under-hood temperature requirements, it lacks AEC-Q101 qualification and automotive-specific reliability testing. Use AR1L2Q-T-AZ only in non-safety automotive subsystems after full validation.
How does AR1L2Q-T-AZ differ from AR1F2Q?
AR1L2Q-T-AZ has R1 = 470 Ω (typ) and R2 = 4.7 kΩ (typ), while AR1F2Q has R1 = 220 Ω (typ) and R2 = 2.2 kΩ (typ). This makes AR1L2Q-T-AZ more sensitive to weak drive signals and better suited for higher-current loads up to −1.0 A, whereas AR1F2Q offers faster switching in low-impedance drive environments but with reduced gain stability at high current.
AR1L2Q-T-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Power - Max:
- -
- Frequency - Transition:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
AR1L2Q-T-AZ FAQ
1.How can I place an order for AR1L2Q-T-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AR1L2Q-T-AZ 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 AR1L2Q-T-AZ reliable?
The price and inventory of AR1L2Q-T-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AR1L2Q-T-AZ is usually 5 days.
3.What payment methods are accepted for AR1L2Q-T-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AR1L2Q-T-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AR1L2Q-T-AZ?
AR1L2Q-T-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AR1L2Q-T-AZ 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 AR1L2Q-T-AZ?
For technical support, including AR1L2Q-T-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AR1L2Q-T-AZ requirements.
6.How does Aetrix verify that AR1L2Q-T-AZ is sourced from the original manufacturer or authorized distributors?
All AR1L2Q-T-AZ 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 AR1L2Q-T-AZ meets industry standards.
7.What is the process for return or replacement of AR1L2Q-T-AZ?
All AR1L2Q-T-AZ units undergo pre-shipment inspection (PSI). If there is an issue with AR1L2Q-T-AZ, 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 AR1L2Q-T-AZ part is unused and in its original packaging.
Return procedure for AR1L2Q-T-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AR1L2Q-T-AZ Tags

-
MMBT3906LT1G
onsemi

-
MMBT3904-7-F
Diodes Incorporated

-
MMBT3904LT1G
onsemi

-
MMBT3906-7-F
Diodes Incorporated

-
MMBT3904-TP
Micro Commercial Co

-
MMBT2222A-7-F
Diodes Incorporated

-
BC846BLT1G
onsemi

-
BC847B,215
Nexperia USA Inc.

-
SMMBT3904LT1G
onsemi

-
MMBT2222A-TP
Micro Commercial Co

-
MMBTA06LT1G
onsemi

-
MMBT2222ALT1G
onsemi
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…

