2SA1806GRL Equivalent & Substitute Parts

Part Overview

The 2SA1806GRL is a PNP bipolar junction transistor manufactured by Panasonic Electronic Components, designed for surface mount applications in the SSMini3-F3 package. This device operates at a maximum collector current of 50 mA with a collector-emitter breakdown voltage of 15 V and a maximum power dissipation of 125 mW. The 2SA1806GRL is classified as an obsolete product. Due to its obsolete status and limited availability, identifying equivalent substitute parts with compatible electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

2SA1806GRL

Panasonic Electronic ComponentsIn Stock: 8692SA1806GRL Datasheet

Current PartRFQ

2SA1774TLQ

Rohm SemiconductorIn Stock: 902292SA1774TLQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SA1806GRL requires identification of alternative PNP bipolar junction transistors that satisfy the electrical and mechanical constraints of the original design. The primary substitution criteria are based on the following parameters:

Electrical Compatibility Requirements:

• Transistor polarity must be PNP
• Maximum collector current (Ic) must equal or exceed 50 mA
• Collector-emitter breakdown voltage (VCEO) must equal or exceed 15 V
• Maximum power dissipation must equal or exceed 125 mW
• DC current gain (hFE) characteristics must support the intended application
• Collector cutoff current (ICBO) must not exceed specified limits

Mechanical Compatibility Requirements:

• Surface mount package configuration
• Physical dimensions compatible with SSMini3-F3 footprint or equivalent

The 2SA1774TLQ from Rohm Semiconductor meets these criteria as a substitute part. This device exceeds the electrical specifications of the 2SA1806GRL across all critical parameters while maintaining surface mount compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 2SA1806GRL is classified as an obsolete product with limited inventory availability. The 2SA1774TLQ from Rohm Semiconductor is an active product with substantially higher inventory levels (90,200 pieces in stock versus 783 pieces for the 2SA1806GRL).

From an electrical standpoint, the 2SA1774TLQ exceeds the specifications of the 2SA1806GRL in collector current capacity (150 mA versus 50 mA), breakdown voltage (50 V versus 15 V), and power dissipation (150 mW versus 125 mW). These higher ratings provide design margin and reduce the risk of component stress in the application.

The 2SA1774TLQ is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The 2SA1806GRL compliance status is not specified in the provided data.

Package differences exist between the two devices: the 2SA1806GRL uses SC-89 (SOT-490) while the 2SA1774TLQ uses SC-75 (SOT-416). Physical footprint verification is required before implementation to ensure PCB layout compatibility.

The transition frequency of the 2SA1806GRL (1.5 GHz) exceeds that of the 2SA1774TLQ (140 MHz). Applications requiring high-frequency operation must evaluate whether the reduced transition frequency of the substitute part is acceptable for the intended circuit function.

Frequently Asked Questions (FAQ)

Q: Can the 2SA1774TLQ directly replace the 2SA1806GRL without circuit modifications?

A: Electrical substitution is feasible based on the provided specifications. The 2SA1774TLQ exceeds all critical electrical parameters of the 2SA1806GRL. However, package differences (SC-89 versus SC-75) require PCB layout verification. Additionally, the reduced transition frequency (140 MHz versus 1.5 GHz) must be evaluated against application frequency requirements.

Q: What are the key differences between these two parts?

A: The 2SA1774TLQ provides higher current capacity (150 mA versus 50 mA), higher breakdown voltage (50 V versus 15 V), higher power rating (150 mW versus 125 mW), and higher maximum operating temperature (150°C versus 125°C). The 2SA1806GRL offers higher transition frequency (1.5 GHz versus 140 MHz). The devices use different surface mount packages.

Q: Is the 2SA1774TLQ suitable for high-frequency applications?

A: The 2SA1774TLQ has a transition frequency of 140 MHz. Applications requiring operation above this frequency must verify compatibility with the specific circuit design. The 2SA1806GRL, with 1.5 GHz transition frequency, is better suited for higher-frequency applications.

Q: What packaging considerations apply to substitution?

A: The 2SA1806GRL uses SC-89 (SOT-490) package while the 2SA1774TLQ uses SC-75 (SOT-416) package. These are different physical packages with different footprints. PCB layout and land pattern modifications are required for implementation.

Q: Are there compliance or regulatory differences?

A: The 2SA1774TLQ is RoHS3 compliant and REACH unaffected. The 2SA1806GRL compliance status is not specified in the available data. Both devices have MSL rating of 1 (Unlimited).

Q: What is the inventory status of each part?

A: The 2SA1806GRL is classified as obsolete with 783 pieces in stock. The 2SA1774TLQ is an active product with 90,200 pieces in stock, providing significantly better long-term availability.