What is the true orderable part number for TLP785F(D4-GRH.F(C?

The base orderable device is Toshiba TLP785F. The trailing characters decode as ordering options: D4 is the VDE Option(D4) designation, GRH is the current-transfer-ratio rank (CTR 150-300%, marked G+), and the remaining characters are tape/packing code fragments. The garbled, unbalanced parentheses in the original listing are packaging-code artifacts, not part of the device name.

What is the difference between TLP785 and TLP785F?

Both are the same single-channel transistor-output photocoupler. The standard TLP785 is a 7.62 mm pitch DIP4. The TLP785F is the lead-formed 10.16 mm pitch version with longer creepage and clearance (8.0 mm min each), intended for surface mounting where greater isolation spacing is required.

What does the GRH rank mean on the TLP785F?

GRH is a current transfer ratio (CTR) classification. Per the Toshiba datasheet, Rank GRH specifies CTR of 150% to 300% (at IF = 5 mA, VCE = 5 V) and is marked G+ on the device.

What is the isolation voltage of the TLP785F?

The TLP785F is rated for a minimum isolation voltage (BVs) of 5000 Vrms, tested at AC for 60 seconds with relative humidity 60% or less.

Is the TLP785F still in production?

Yes, Toshiba lists the TLP785F as an active product. However, the specific D4-GRH ordering option has little or no authorized-distributor availability, which is why it is offered as a request-for-quote item at Pacific Component Xchange.

How do I buy the TLP785F if it is not in distributor stock?

Submit a request for quote (RFQ) to Pacific Component Xchange. As an independent distributor specializing in hard-to-find optocouplers and power-management ICs, we source authentic stock to your required quantity and lead time, with traceability and global shipping.

TLP785F – Optocoupler – Toshiba

The Toshiba TLP785F is a single-channel phototransistor-output optocoupler in a 10.16 mm pitch long-creepage DIP4 package, rated for 5000 Vrms isolation. Available for RFQ through Pacific Component Xchange.

Brand:Toshiba

SKU: TLP785F Categories: Electronic Parts, RFQ

Please contact us or add to quote for current pricing and availability.

The Toshiba TLP785F is a single-channel photocoupler that pairs an infrared emitting diode (IRED) with a silicon phototransistor inside a four-lead plastic DIP (DIP4) package. The “F” variant is the lead-formed, 10.16 mm pitch type engineered for long creepage-distance surface mounting, making it well suited to safety-critical isolation barriers in mains-connected equipment. It carries a minimum isolation voltage of 5000 Vrms and multiple international safety approvals.

This page covers the TLP785F ordering option carrying the VDE Option(D4) designation and the GRH current-transfer-ratio rank (CTR 150-300%). The base orderable device is the TLP785F; the trailing characters in the original listing (D4 / GRH / F) denote the VDE option, CTR rank marking, and tape/packing code.

Key Features

Single-channel phototransistor-output photocoupler (IRED + silicon phototransistor)
Isolation voltage (BV_S): 5000 Vrms (min), AC 60 s, R.H. 60% or less
Current transfer ratio: 50% (min) standard (None rank, 50-600%); Rank GB 100% (min, 100-600%); Rank GRH 150-300% (marked G+)
Collector-emitter voltage V_CEO: 80 V (absolute maximum rating); collector-emitter breakdown voltage V_(BR)CEO 80 V (min)
Forward current I_F: 60 mA (max); collector current I_C: 50 mA (max)
Collector-emitter saturation voltage V_CE(sat): 0.4 V (max)
Operating temperature range: -55 to +110 degrees C
10.16 mm pitch DIP4 long-creepage lead-form (creepage 8.0 mm min, clearance 8.0 mm min)
Safety approvals: UL 1577 (File E67349), cUL/CSA (File E67349), VDE EN 60747-5-5 (Option D4), CQC GB4943.1/GB8898, SEMKO EN 62368-1

Applications

Switching power supplies and AC main voltage detection
Solid-state relays and contactless controller outputs
Communication interfaces and simplex/multiplex data transmission
Office equipment and home electric appliances
Signal isolation across mains/secondary barriers

Why Source TLP785F from Pacific Component Xchange

The TLP785F with the D4-GRH ordering option sees little to no authorized-distributor stock, making it a genuine hard-to-find part. Pacific Component Xchange specializes in sourcing obsolete, allocated, and low-availability power-management ICs and optocouplers like this one. We support traceability and authenticity verification on every line, offer global shipping, and respond quickly to quote requests. Request a quote (RFQ) today and our sourcing team will locate authentic TLP785F stock to your quantity and lead-time requirements.

Additional Information

Manufacturer	Toshiba Electronic Devices & Storage Corporation
Component Type	Optocoupler (transistor output)
Channels	1
Output Type	Phototransistor
Current Transfer Ratio (CTR)	50% min (None rank, 50-600%); Rank GB 100% min (100-600%); Rank GRH 150-300%
Isolation Voltage (BVs)	5000 Vrms min (AC, 60 s, R.H. 60% or less)
Collector-Emitter Voltage (VCEO)	80 V (absolute max rating); V(BR)CEO 80 V min
Forward Current (IF)	60 mA max
Collector Current (IC)	50 mA max
VCE(sat)	0.4 V max
Operating Temperature	-55 to +110 degrees C
Package	DIP4, 10.16 mm pitch long-creepage lead-form (through-hole)
Part Status	Active
Availability	Available