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PT42-21B/TR8

ACTIVE
Everlight Electronics Co Ltd

Phototransistors 940nm Top View 1210 (3225 Metric)

In full production. No end-of-life notice on file.

PT42-21B/TR8 is a Phototransistors 940nm Top View 1210 (3225 Metric) from Everlight Electronics Co Ltd. 1 authorized distributor quotes it on TracedParts, from RM 0.97 at quantity 1, with 38,587 units in stock for immediate despatch. Figures come from the distributors' own APIs, pulled in the catalogue snapshot of 2026-09-25, and are indicative rather than a binding quote.

RoHS COMPLIANTREACH 1210 (3225 Metric) SMD
BEST PRICE @1
RM 0.97
DigiKey · authorized
TOTAL STOCK
38,587
1 source
SHORTEST LEAD
stock
ships from warehouse
AUTHORIZED
1 / 1
tier 1 sources

Who has PT42-21B/TR8 in stock, and what does it cost?

1 authorized distributor · pulled from their APIs in the catalogue snapshot of 2026-09-25
QTY pcs
DISTRIBUTOR
STOCK
MOQ
PRICE BREAKS · MYR
LEAD
@250 PCS
TIER 1 - AUTHORIZED DISTRIBUTORfranchised - full warranty - paperwork QA will accept
AUTH
38,587
1,000
1k+0.97142k+0.91123k+0.88045k+0.84557k+0.824710k+0.8045
stock
ex-warehouse
-
below MOQ 1,000
Buy ↗
What 250 pcs actually costs landed in Malaysia, duty and SST included: RM 315.09 RM 1.2604 per unit, DDP · estimate Open estimator →

What are the specifications of PT42-21B/TR8?

19 parameters▾
Device specification
Voltage - Collector Emitter Breakdown (Max)30 V
Current - Collector (Ic) (Max)20 mA
Current - Dark (Id) (Max)100 nA
Wavelength940nm
Power - Max75 mW
Mounting TypeSurface Mount
OrientationTop View
Operating Temperature-25°C ~ 85°C
Package / Case1210 (3225 Metric)
Ordering & compliance
ManufacturerEverlight Electronics Co Ltd
CategoryPhototransistors
Package1210 (3225 Metric)
MountingSurface mount
LifecycleACTIVE
RoHSCompliant
Moisture levelNot applicable (through hole)
PackagingTape & reel
Country of origin
HS code

Where can I download the PT42-21B/TR8 datasheet?

link supplied by DigiKey▾
PDF
PT42-21B/TR8 datasheet
link supplied by DigiKey · Everlight Electronics Co Ltd · English
Open datasheet ↗

This is the datasheet link the distributor returned with the part record. We pass it through as they gave it, and we have not opened it - there are more than 300,000 of these and we verify only the ones we curate by hand. If it does not resolve, that is the distributor’s record, not the part.

What does PT42-21B/TR8 cost landed in Malaysia?

Malaysia · DDP · HS ▾
Goods
Freight · express 2 d
Import duty · 0 % (ITA-exempt)
Sales & service tax · 6 %
Customs clearance
Landed total

Estimate only. The correct HS classification for your import is your responsibility - see terms of service.

Is there a CAD symbol and footprint for PT42-21B/TR8?

4 downloads▾
SCHEMATIC SYMBOL · .libPCB FOOTPRINT · .kicad_mod 3D MODEL · .stepSPICE · .mod

What can I use instead of PT42-21B/TR8?

3 in phototransistors▾
1540601NEA200
Würth Elektronik
Phototransistors 940nm Top View 0603 (1608 Metric)…
5,090
RM 0.98
1540801NBA300
Würth Elektronik
Phototransistors 940nm Top View 0805 (2012 Metric)…
5,090
RM 0.98
1541201NBA300
Würth Elektronik
Phototransistors 940nm Top View 1206 (3216 Metric)…
5,090
RM 0.98

Nearest peers by price within the same category. Confirm the parameters before you substitute - these are not guaranteed drop-in replacements.

Which parts are similar to PT42-21B/TR8?

8 parts▾
APA3010P3BT-GXLTR-4206ESFH 320-3-ZPT11-21C/L41/TR8VEMT2500X01VEMT2023SLX01PT19-21C/L41/TR8ALS-PT19-315C/L177/TR8

Common questions about PT42-21B/TR8

7 questions▾
Is PT42-21B/TR8 in stock?
Yes. 38,587 units are in stock across 1 authorized distributor (DigiKey), as of the catalogue snapshot of 2026-09-25.
How much does PT42-21B/TR8 cost?
RM 0.9714 is the lowest unit price on this page, from DigiKey. Prices fall as quantity rises; the full price break ladder is in the quotes table. Figures come from the distributor API and are indicative, not a binding quote.
Who supplies PT42-21B/TR8?
DigiKey. It is authorized, franchised distributor quoting through its own API. TracedParts carries no broker or open-market listings.
How old are these prices?
The catalogue is re-pulled from the distributors' APIs once a day, and the line under the Quotes heading says which pull the figures on this page came from. Prices and stock can move between pulls, so treat them as indicative and confirm on the distributor's site before you order.
Who quoted these prices?
Every row on the site comes from an authorized, franchised distributor through its own API: DigiKey, Mouser or element14. There are no broker or open-market listings on TracedParts. If a source ever changes, the row will say so.
Why do you show the source before the price?
Because who sold it decides what happens at incoming inspection, and a table sorted by price alone hides that. Rows are grouped by the distributor's status first and ordered by unit price inside the group.
Why are prices in ringgit?
Distributors quote in US dollars. TracedParts converts to MYR at a fixed reference rate that is printed on the page, not a live FX feed, so the ringgit figure is a sourcing estimate rather than the amount you will be billed.