Visible / RGB Collimated Laser Head
LZRGB-638-Collimated
638 nm red, CW 500 mW - 1 W
638 nm red collimated laser head for laser projection, display engines, sensing and barcode illumination. Three independent sources are qualified against the same head, so the beam-shaping optics and the drive design can be fixed before the emitter is chosen.
Estimated range
Range estimates apply to pulsed transmitter parts. This device is specified by its own parameters above.
Every parameter on this page is transcribed from the manufacturer datasheet.
638 nm red laser diode multi-source summary specification V5.0
| Form | 638 nm red laser diode, TO56 TO-CAN, collimated |
|---|---|
| Wavelength range | 632 - 644 nm |
| Rated output | CW 500 mW - 1 W |
| Operating mode | CW |
| Package | TO56 |
| Beam | Collimated; square or line spot after shaping |
| Operating case temperature | -10 to +40 |
| Qualified sources | 3 - Sharp, Mitsubishi Electric, HiLaser |
| Spread across sources | Peak wavelength 632 - 644 nm across sources; threshold 90 - 180 mA; operating current 660 - 1200 mA at the rated output. |
| Lifetime | MTTF > 2000 h at Tc = 40 °C, Po = 490 mW down to 50 % of initial power (GH0637AA2G); 8000 h typical, 10000 h reference, at 50 % cumulative failure (HiLaserRTV101A). |
Key features
- CW 500 mW to 1 W at 638 nm; the Mitsubishi part additionally carries a 1.0 W pulsed rating at duty <= 33 % and f <= 50 Hz
- Threshold current 90 - 180 mA; operating current 660 - 1000 mA at the rated optical output
- Fast axis 25 - 45° and slow axis 1 - 26° before shaping, so the collimator has to be matched to the source, not to the wavelength
- Square and line spot options after shaping, both specified at 0.8 - 1°
- TO56 TO-CAN outline, soldering at 260 - 350 °C, storage to +85 °C
This part is used in these application teardowns:
Typical applications
- Laser projector / display
- Light source for optical equipment, sensors and barcode readers
Qualified alternative sources
-
GH0637AA2GSharpCW 700 mW (Tc <= 30 C); CW 500 mW (30 - 40 C)TO56
-
ML501P73Mitsubishi ElectricCW 500 mW; pulsed 1.0 W (duty <= 33 %, f <= 50 Hz)TO56
-
HiLaserRTV101AHiLaser1 W (absolute maximum 1.15 W)TO56
Source parameters
One head, several qualified sources. Every figure below is taken from that source’s own summary sheet, written as min / typ / max; a dash means the sheet states no figure.
| GH0637AA2G | ML501P73 | HiLaserRTV101A | |
|---|---|---|---|
| Rated output | CW 700 mW (Tc <= 30 C) / 500 mW (30 - 40 C) | CW 500 mW / pulsed 1.0 W | 1 W |
| Absolute maximum output Po | 700 mW | 500 mW CW / 1.0 W pulsed | 1150 mW |
| Operating case temperature Tc | -10 ~ +40 ℃ | -5 ~ +40 ℃ | -10 ~ +40 ℃ |
| Storage temperature Tstg | -40 ~ +85 ℃ | -40 ~ +100 ℃ | -40 ~ +85 ℃ |
| Soldering temperature Tsol | 350 C (<= 3 s, 1.6 mm from the base) | 260 C (<= 10 s, leads >= 2 mm) | 260 C (<= 10 s, leads >= 2 mm) |
| Reverse voltage / current | 2 V | 2 V | 2 V |
| Threshold current Ith | - / 110 / 155 mA | 90 / 170 / 210 mA | - / 180 / 300 mA |
| Operating current Iop | - / 810 / 930 mA (Po = 700 mW) | 500 / 660 / 800 mA (Po = 500 mW) | - / 900 / 1000 mA (P = 1 W, Tc = 25 C); - / 1100 / 1200 mA (P = 1 W, Tc = 40 C) |
| Operating voltage Vop / Vf | - / 2.46 / 3.0 V | 1.9 / 2.2 / 2.6 V | - / 2.2 / 3.0 V |
| Slope efficiency η | — | 0.8 / 1.0 / 1.4 mW/mA | — |
| Peak wavelength λp | 635 / 638 / 642 nm | 632 / 638 / 644 nm | 634 / 638 / 644 nm |
| Divergence θ∥ (parallel) | 6 / 16 / 26° | 1 / 7.5 / 15° | - / 10 / 20° (1/e2, P = 1 W) |
| Divergence θ⊥ (perpendicular) | 25 / 35 / 45° | 25 / 35 / 45° | - / 60 / 70° (1/e2, P = 1 W) |
| Square spot divergence θ⊥ | 6 / 16 / 26° | 1 / 7.5 / 15° | - / 10 / 20° |
| Line spot divergence θ⊥ | 0.8 / 0.9 / 1° | 0.8 / 0.9 / 1° | 0.8 / 0.9 / 1° |
| Pointing deviation Δθ | ±5 / ±5° | — | — |
| Lifetime / MTTF | MTTF > 2000 h (Tc = 40 C, Po = 490 mW, to 50 % of initial power) | See the vendor reliability report | 8000 h typical (10000 h reference) at 50 % cumulative failure; 1000 h at 1 % |
Need this part in a specific configuration?
Fibre pigtail, fast-axis collimation, a matched driver board or a filtered receiver - describe the build and we will quote against it.