Is there a pin-compatible replacement for TQ2-5V?

No, a fully pin-compatible replacement was not found. The Panasonic TQ2-L2-5V has a compatible pinout and package but is a latching relay, which is functionally different and requires a circuit redesign.

What risks should I check before replacing TQ2-5V?

Before replacing, you must verify three critical parameters: 1) Coil Voltage (must be 5V DC), 2) Coil Type (must be non-latching), and 3) Contact Ratings (current/voltage must meet or exceed 1A/125VAC).

TQ2-5V Alternatives, Datasheet & Cross Reference | PANASONIC

The Panasonic TQ2-5V is a compact 5V non-latching signal relay. Finding a substitute requires careful matching of coil voltage, function, and package, as many similar parts have critical differences.

AI replacement insight

Electrical riskhigh

Most alternatives have incorrect coil voltage. One has a different operating function (latching).

Package risklow

Several parts exist in the same TQ2/AGQ package family, but electricals must be verified.

Can it be replaced directly?

No, a direct pin-for-pin replacement for the TQ2-5V was not found. All reviewed candidates have critical differences in coil voltage or function (latching vs. non-latching).

Best replacement path

Search for other 5V DPDT non-latching relays with a 14x9x5mm package. The target TQ2-5V itself is the most reliable choice if available.

Main risk

Using a relay with the wrong coil voltage or coil type. A voltage mismatch will cause malfunction, and a latching type requires a completely different drive circuit.

Recommended alternatives

Shares voltage and package but is a latching type, requiring circuit modification.

View details

Alternative comparison matrix

Feature / factor	TQ2-5V	TQ2-L2-5V	Compatibility / risk
Application	Non-Latching	2-Coil Latching	2-Coil Latching — Candidate is a latching relay, requiring a different drive circuit (set/reset pulses).
Voltage	5V DC	5V DC	5V DC — Coil voltage matches.
Package	14.0x9.0x5.0 mm	14.0x9.0x5.0 mm	14.0x9.0x5.0 mm — Package dimensions and pin footprint are identical.
Current	1 A	1 A	1 A — Maximum switching current matches.

Application & sourcing insights

Questions & answers

No direct, drop-in alternative was identified in this review. The best path is to source the original TQ2-5V or find another non-latching, 5V DPDT relay with a 14x9x5mm package and 1A rating.